diff options
72 files changed, 1728 insertions, 1687 deletions
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index 8af392fc6ef0..dc3f49e3e539 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt @@ -477,9 +477,9 @@ With this multipage bio design: the same bi_io_vec array, but with the index and size accordingly modified) - A linked list of bios is used as before for unrelated merges (*) - this avoids reallocs and makes independent completions easier to handle. -- Code that traverses the req list needs to make a distinction between - segments of a request (bio_for_each_segment) and the distinct completion - units/bios (rq_for_each_bio). +- Code that traverses the req list can find all the segments of a bio + by using rq_for_each_segment. This handles the fact that a request + has multiple bios, each of which can have multiple segments. - Drivers which can't process a large bio in one shot can use the bi_idx field to keep track of the next bio_vec entry to process. (e.g a 1MB bio_vec needs to be handled in max 128kB chunks for IDE) @@ -664,14 +664,14 @@ in lvm or md. 3.2.1 Traversing segments and completion units in a request -The macros bio_for_each_segment() and rq_for_each_bio() should be used for -traversing the bios in the request list (drivers should avoid directly -trying to do it themselves). Using these helpers should also make it easier -to cope with block changes in the future. +The macro rq_for_each_segment() should be used for traversing the bios +in the request list (drivers should avoid directly trying to do it +themselves). Using these helpers should also make it easier to cope +with block changes in the future. - rq_for_each_bio(bio, rq) - bio_for_each_segment(bio_vec, bio, i) - /* bio_vec is now current segment */ + struct req_iterator iter; + rq_for_each_segment(bio_vec, rq, iter) + /* bio_vec is now current segment */ I/O completion callbacks are per-bio rather than per-segment, so drivers that traverse bio chains on completion need to keep that in mind. Drivers diff --git a/Documentation/block/ioprio.txt b/Documentation/block/ioprio.txt index 1b930ef5a079..35e516b0b8a9 100644 --- a/Documentation/block/ioprio.txt +++ b/Documentation/block/ioprio.txt @@ -86,8 +86,15 @@ extern int sys_ioprio_get(int, int); #error "Unsupported arch" #endif -_syscall3(int, ioprio_set, int, which, int, who, int, ioprio); -_syscall2(int, ioprio_get, int, which, int, who); +static inline int ioprio_set(int which, int who, int ioprio) +{ + return syscall(__NR_ioprio_set, which, who, ioprio); +} + +static inline int ioprio_get(int which, int who) +{ + return syscall(__NR_ioprio_get, which, who); +} enum { IOPRIO_CLASS_NONE, diff --git a/MAINTAINERS b/MAINTAINERS index 22497de381da..60162706716f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4156,6 +4156,13 @@ W: http://oss.sgi.com/projects/xfs T: git git://oss.sgi.com:8090/xfs/xfs-2.6.git S: Supported +XILINX SYSTEMACE DRIVER +P: Grant Likely +M: grant.likely@secretlab.ca +W: http://www.secretlab.ca/ +L: linux-kernel@vger.kernel.org +S: Maintained + XILINX UARTLITE SERIAL DRIVER P: Peter Korsgaard M: jacmet@sunsite.dk diff --git a/block/Makefile b/block/Makefile index 959feeb253be..3cfe7cebaa6a 100644 --- a/block/Makefile +++ b/block/Makefile @@ -11,3 +11,4 @@ obj-$(CONFIG_IOSCHED_DEADLINE) += deadline-iosched.o obj-$(CONFIG_IOSCHED_CFQ) += cfq-iosched.o obj-$(CONFIG_BLK_DEV_IO_TRACE) += blktrace.o +obj-$(CONFIG_COMPAT) += compat_ioctl.o diff --git a/block/blktrace.c b/block/blktrace.c index 20fa034ea4a2..775471ef84a5 100644 --- a/block/blktrace.c +++ b/block/blktrace.c @@ -312,33 +312,26 @@ static struct rchan_callbacks blk_relay_callbacks = { /* * Setup everything required to start tracing */ -static int blk_trace_setup(struct request_queue *q, struct block_device *bdev, - char __user *arg) +int do_blk_trace_setup(struct request_queue *q, struct block_device *bdev, + struct blk_user_trace_setup *buts) { - struct blk_user_trace_setup buts; struct blk_trace *old_bt, *bt = NULL; struct dentry *dir = NULL; char b[BDEVNAME_SIZE]; int ret, i; - if (copy_from_user(&buts, arg, sizeof(buts))) - return -EFAULT; - - if (!buts.buf_size || !buts.buf_nr) + if (!buts->buf_size || !buts->buf_nr) return -EINVAL; - strcpy(buts.name, bdevname(bdev, b)); + strcpy(buts->name, bdevname(bdev, b)); /* * some device names have larger paths - convert the slashes * to underscores for this to work as expected */ - for (i = 0; i < strlen(buts.name); i++) - if (buts.name[i] == '/') - buts.name[i] = '_'; - - if (copy_to_user(arg, &buts, sizeof(buts))) - return -EFAULT; + for (i = 0; i < strlen(buts->name); i++) + if (buts->name[i] == '/') + buts->name[i] = '_'; ret = -ENOMEM; bt = kzalloc(sizeof(*bt), GFP_KERNEL); @@ -350,7 +343,7 @@ static int blk_trace_setup(struct request_queue *q, struct block_device *bdev, goto err; ret = -ENOENT; - dir = blk_create_tree(buts.name); + dir = blk_create_tree(buts->name); if (!dir) goto err; @@ -363,20 +356,21 @@ static int blk_trace_setup(struct request_queue *q, struct block_device *bdev, if (!bt->dropped_file) goto err; - bt->rchan = relay_open("trace", dir, buts.buf_size, buts.buf_nr, &blk_relay_callbacks, bt); + bt->rchan = relay_open("trace", dir, buts->buf_size, + buts->buf_nr, &blk_relay_callbacks, bt); if (!bt->rchan) goto err; - bt->act_mask = buts.act_mask; + bt->act_mask = buts->act_mask; if (!bt->act_mask) bt->act_mask = (u16) -1; - bt->start_lba = buts.start_lba; - bt->end_lba = buts.end_lba; + bt->start_lba = buts->start_lba; + bt->end_lba = buts->end_lba; if (!bt->end_lba) bt->end_lba = -1ULL; - bt->pid = buts.pid; + bt->pid = buts->pid; bt->trace_state = Blktrace_setup; ret = -EBUSY; @@ -401,6 +395,26 @@ err: return ret; } +static int blk_trace_setup(struct request_queue *q, struct block_device *bdev, + char __user *arg) +{ + struct blk_user_trace_setup buts; + int ret; + + ret = copy_from_user(&buts, arg, sizeof(buts)); + if (ret) + return -EFAULT; + + ret = do_blk_trace_setup(q, bdev, &buts); + if (ret) + return ret; + + if (copy_to_user(arg, &buts, sizeof(buts))) + return -EFAULT; + + return 0; +} + static int blk_trace_startstop(struct request_queue *q, int start) { struct blk_trace *bt; diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c new file mode 100644 index 000000000000..f84093b97f70 --- /dev/null +++ b/block/compat_ioctl.c @@ -0,0 +1,814 @@ +#include <linux/blkdev.h> +#include <linux/blkpg.h> +#include <linux/blktrace_api.h> +#include <linux/cdrom.h> +#include <linux/compat.h> +#include <linux/elevator.h> +#include <linux/fd.h> +#include <linux/hdreg.h> +#include <linux/syscalls.h> +#include <linux/smp_lock.h> +#include <linux/types.h> +#include <linux/uaccess.h> + +static int compat_put_ushort(unsigned long arg, unsigned short val) +{ + return put_user(val, (unsigned short __user *)compat_ptr(arg)); +} + +static int compat_put_int(unsigned long arg, int val) +{ + return put_user(val, (compat_int_t __user *)compat_ptr(arg)); +} + +static int compat_put_long(unsigned long arg, long val) +{ + return put_user(val, (compat_long_t __user *)compat_ptr(arg)); +} + +static int compat_put_ulong(unsigned long arg, compat_ulong_t val) +{ + return put_user(val, (compat_ulong_t __user *)compat_ptr(arg)); +} + +static int compat_put_u64(unsigned long arg, u64 val) +{ + return put_user(val, (compat_u64 __user *)compat_ptr(arg)); +} + +struct compat_hd_geometry { + unsigned char heads; + unsigned char sectors; + unsigned short cylinders; + u32 start; +}; + +static int compat_hdio_getgeo(struct gendisk *disk, struct block_device *bdev, + struct compat_hd_geometry __user *ugeo) +{ + struct hd_geometry geo; + int ret; + + if (!ugeo) + return -EINVAL; + if (!disk->fops->getgeo) + return -ENOTTY; + + /* + * We need to set the startsect first, the driver may + * want to override it. + */ + geo.start = get_start_sect(bdev); + ret = disk->fops->getgeo(bdev, &geo); + if (ret) + return ret; + + ret = copy_to_user(ugeo, &geo, 4); + ret |= __put_user(geo.start, &ugeo->start); + if (ret) + ret = -EFAULT; + + return ret; +} + +static int compat_hdio_ioctl(struct inode *inode, struct file *file, + struct gendisk *disk, unsigned int cmd, unsigned long arg) +{ + mm_segment_t old_fs = get_fs(); + unsigned long kval; + unsigned int __user *uvp; + int error; + + set_fs(KERNEL_DS); + error = blkdev_driver_ioctl(inode, file, disk, + cmd, (unsigned long)(&kval)); + set_fs(old_fs); + + if (error == 0) { + uvp = compat_ptr(arg); + if (put_user(kval, uvp)) + error = -EFAULT; + } + return error; +} + +struct compat_cdrom_read_audio { + union cdrom_addr addr; + u8 addr_format; + compat_int_t nframes; + compat_caddr_t buf; +}; + +struct compat_cdrom_generic_command { + unsigned char cmd[CDROM_PACKET_SIZE]; + compat_caddr_t buffer; + compat_uint_t buflen; + compat_int_t stat; + compat_caddr_t sense; + unsigned char data_direction; + compat_int_t quiet; + compat_int_t timeout; + compat_caddr_t reserved[1]; +}; + +static int compat_cdrom_read_audio(struct inode *inode, struct file *file, + struct gendisk *disk, unsigned int cmd, unsigned long arg) +{ + struct cdrom_read_audio __user *cdread_audio; + struct compat_cdrom_read_audio __user *cdread_audio32; + __u32 data; + void __user *datap; + + cdread_audio = compat_alloc_user_space(sizeof(*cdread_audio)); + cdread_audio32 = compat_ptr(arg); + + if (copy_in_user(&cdread_audio->addr, + &cdread_audio32->addr, + (sizeof(*cdread_audio32) - + sizeof(compat_caddr_t)))) + return -EFAULT; + + if (get_user(data, &cdread_audio32->buf)) + return -EFAULT; + datap = compat_ptr(data); + if (put_user(datap, &cdread_audio->buf)) + return -EFAULT; + + return blkdev_driver_ioctl(inode, file, disk, cmd, + (unsigned long)cdread_audio); +} + +static int compat_cdrom_generic_command(struct inode *inode, struct file *file, + struct gendisk *disk, unsigned int cmd, unsigned long arg) +{ + struct cdrom_generic_command __user *cgc; + struct compat_cdrom_generic_command __user *cgc32; + u32 data; + unsigned char dir; + int itmp; + + cgc = compat_alloc_user_space(sizeof(*cgc)); + cgc32 = compat_ptr(arg); + + if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) || + get_user(data, &cgc32->buffer) || + put_user(compat_ptr(data), &cgc->buffer) || + copy_in_user(&cgc->buflen, &cgc32->buflen, + (sizeof(unsigned int) + sizeof(int))) || + get_user(data, &cgc32->sense) || + put_user(compat_ptr(data), &cgc->sense) || + get_user(dir, &cgc32->data_direction) || + put_user(dir, &cgc->data_direction) || + get_user(itmp, &cgc32->quiet) || + put_user(itmp, &cgc->quiet) || + get_user(itmp, &cgc32->timeout) || + put_user(itmp, &cgc->timeout) || + get_user(data, &cgc32->reserved[0]) || + put_user(compat_ptr(data), &cgc->reserved[0])) + return -EFAULT; + + return blkdev_driver_ioctl(inode, file, disk, cmd, (unsigned long)cgc); +} + +struct compat_blkpg_ioctl_arg { + compat_int_t op; + compat_int_t flags; + compat_int_t datalen; + compat_caddr_t data; +}; + +static int compat_blkpg_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, struct compat_blkpg_ioctl_arg __user *ua32) +{ + struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a)); + compat_caddr_t udata; + compat_int_t n; + int err; + + err = get_user(n, &ua32->op); + err |= put_user(n, &a->op); + err |= get_user(n, &ua32->flags); + err |= put_user(n, &a->flags); + err |= get_user(n, &ua32->datalen); + err |= put_user(n, &a->datalen); + err |= get_user(udata, &ua32->data); + err |= put_user(compat_ptr(udata), &a->data); + if (err) + return err; + + return blkdev_ioctl(inode, file, cmd, (unsigned long)a); +} + +#define BLKBSZGET_32 _IOR(0x12, 112, int) +#define BLKBSZSET_32 _IOW(0x12, 113, int) +#define BLKGETSIZE64_32 _IOR(0x12, 114, int) + +struct compat_floppy_struct { + compat_uint_t size; + compat_uint_t sect; + compat_uint_t head; + compat_uint_t track; + compat_uint_t stretch; + unsigned char gap; + unsigned char rate; + unsigned char spec1; + unsigned char fmt_gap; + const compat_caddr_t name; +}; + +struct compat_floppy_drive_params { + char cmos; + compat_ulong_t max_dtr; + compat_ulong_t hlt; + compat_ulong_t hut; + compat_ulong_t srt; + compat_ulong_t spinup; + compat_ulong_t spindown; + unsigned char spindown_offset; + unsigned char select_delay; + unsigned char rps; + unsigned char tracks; + compat_ulong_t timeout; + unsigned char interleave_sect; + struct floppy_max_errors max_errors; + char flags; + char read_track; + short autodetect[8]; + compat_int_t checkfreq; + compat_int_t native_format; +}; + +struct compat_floppy_drive_struct { + signed char flags; + compat_ulong_t spinup_date; + compat_ulong_t select_date; + compat_ulong_t first_read_date; + short probed_format; + short track; + short maxblock; + short maxtrack; + compat_int_t generation; + compat_int_t keep_data; + compat_int_t fd_ref; + compat_int_t fd_device; + compat_int_t last_checked; + compat_caddr_t dmabuf; + compat_int_t bufblocks; +}; + +struct compat_floppy_fdc_state { + compat_int_t spec1; + compat_int_t spec2; + compat_int_t dtr; + unsigned char version; + unsigned char dor; + compat_ulong_t address; + unsigned int rawcmd:2; + unsigned int reset:1; + unsigned int need_configure:1; + unsigned int perp_mode:2; + unsigned int has_fifo:1; + unsigned int driver_version; + unsigned char track[4]; +}; + +struct compat_floppy_write_errors { + unsigned int write_errors; + compat_ulong_t first_error_sector; + compat_int_t first_error_generation; + compat_ulong_t last_error_sector; + compat_int_t last_error_generation; + compat_uint_t badness; +}; + +#define FDSETPRM32 _IOW(2, 0x42, struct compat_floppy_struct) +#define FDDEFPRM32 _IOW(2, 0x43, struct compat_floppy_struct) +#define FDGETPRM32 _IOR(2, 0x04, struct compat_floppy_struct) +#define FDSETDRVPRM32 _IOW(2, 0x90, struct compat_floppy_drive_params) +#define FDGETDRVPRM32 _IOR(2, 0x11, struct compat_floppy_drive_params) +#define FDGETDRVSTAT32 _IOR(2, 0x12, struct compat_floppy_drive_struct) +#define FDPOLLDRVSTAT32 _IOR(2, 0x13, struct compat_floppy_drive_struct) +#define FDGETFDCSTAT32 _IOR(2, 0x15, struct compat_floppy_fdc_state) +#define FDWERRORGET32 _IOR(2, 0x17, struct compat_floppy_write_errors) + +static struct { + unsigned int cmd32; + unsigned int cmd; +} fd_ioctl_trans_table[] = { + { FDSETPRM32, FDSETPRM }, + { FDDEFPRM32, FDDEFPRM }, + { FDGETPRM32, FDGETPRM }, + { FDSETDRVPRM32, FDSETDRVPRM }, + { FDGETDRVPRM32, FDGETDRVPRM }, + { FDGETDRVSTAT32, FDGETDRVSTAT }, + { FDPOLLDRVSTAT32, FDPOLLDRVSTAT }, + { FDGETFDCSTAT32, FDGETFDCSTAT }, + { FDWERRORGET32, FDWERRORGET } +}; + +#define NR_FD_IOCTL_TRANS ARRAY_SIZE(fd_ioctl_trans_table) + +static int compat_fd_ioctl(struct inode *inode, struct file *file, + struct gendisk *disk, unsigned int cmd, unsigned long arg) +{ + mm_segment_t old_fs = get_fs(); + void *karg = NULL; + unsigned int kcmd = 0; + int i, err; + + for (i = 0; i < NR_FD_IOCTL_TRANS; i++) + if (cmd == fd_ioctl_trans_table[i].cmd32) { + kcmd = fd_ioctl_trans_table[i].cmd; + break; + } + if (!kcmd) + return -EINVAL; + + switch (cmd) { + case FDSETPRM32: + case FDDEFPRM32: + case FDGETPRM32: + { + compat_uptr_t name; + struct compat_floppy_struct __user *uf; + struct floppy_struct *f; + + uf = compat_ptr(arg); + f = karg = kmalloc(sizeof(struct floppy_struct), GFP_KERNEL); + if (!karg) + return -ENOMEM; + if (cmd == FDGETPRM32) + break; + err = __get_user(f->size, &uf->size); + err |= __get_user(f->sect, &uf->sect); + err |= __get_user(f->head, &uf->head); + err |= __get_user(f->track, &uf->track); + err |= __get_user(f->stretch, &uf->stretch); + err |= __get_user(f->gap, &uf->gap); + err |= __get_user(f->rate, &uf->rate); + err |= __get_user(f->spec1, &uf->spec1); + err |= __get_user(f->fmt_gap, &uf->fmt_gap); + err |= __get_user(name, &uf->name); + f->name = compat_ptr(name); + if (err) { + err = -EFAULT; + goto out; + } + break; + } + case FDSETDRVPRM32: + case FDGETDRVPRM32: + { + struct compat_floppy_drive_params __user *uf; + struct floppy_drive_params *f; + + uf = compat_ptr(arg); + f = karg = kmalloc(sizeof(struct floppy_drive_params), GFP_KERNEL); + if (!karg) + return -ENOMEM; + if (cmd == FDGETDRVPRM32) + break; + err = __get_user(f->cmos, &uf->cmos); + err |= __get_user(f->max_dtr, &uf->max_dtr); + err |= __get_user(f->hlt, &uf->hlt); + err |= __get_user(f->hut, &uf->hut); + err |= __get_user(f->srt, &uf->srt); + err |= __get_user(f->spinup, &uf->spinup); + err |= __get_user(f->spindown, &uf->spindown); + err |= __get_user(f->spindown_offset, &uf->spindown_offset); + err |= __get_user(f->select_delay, &uf->select_delay); + err |= __get_user(f->rps, &uf->rps); + err |= __get_user(f->tracks, &uf->tracks); + err |= __get_user(f->timeout, &uf->timeout); + err |= __get_user(f->interleave_sect, &uf->interleave_sect); + err |= __copy_from_user(&f->max_errors, &uf->max_errors, sizeof(f->max_errors)); + err |= __get_user(f->flags, &uf->flags); + err |= __get_user(f->read_track, &uf->read_track); + err |= __copy_from_user(f->autodetect, uf->autodetect, sizeof(f->autodetect)); + err |= __get_user(f->checkfreq, &uf->checkfreq); + err |= __get_user(f->native_format, &uf->native_format); + if (err) { + err = -EFAULT; + goto out; + } + break; + } + case FDGETDRVSTAT32: + case FDPOLLDRVSTAT32: + karg = kmalloc(sizeof(struct floppy_drive_struct), GFP_KERNEL); + if (!karg) + return -ENOMEM; + break; + case FDGETFDCSTAT32: + karg = kmalloc(sizeof(struct floppy_fdc_state), GFP_KERNEL); + if (!karg) + return -ENOMEM; + break; + case FDWERRORGET32: + karg = kmalloc(sizeof(struct floppy_write_errors), GFP_KERNEL); + if (!karg) + return -ENOMEM; + break; + default: + return -EINVAL; + } + set_fs(KERNEL_DS); + err = blkdev_driver_ioctl(inode, file, disk, kcmd, (unsigned long)karg); + set_fs(old_fs); + if (err) + goto out; + switch (cmd) { + case FDGETPRM32: + { + struct floppy_struct *f = karg; + struct compat_floppy_struct __user *uf = compat_ptr(arg); + + err = __put_user(f->size, &uf->size); + err |= __put_user(f->sect, &uf->sect); + err |= __put_user(f->head, &uf->head); + err |= __put_user(f->track, &uf->track); + err |= __put_user(f->stretch, &uf->stretch); + err |= __put_user(f->gap, &uf->gap); + err |= __put_user(f->rate, &uf->rate); + err |= __put_user(f->spec1, &uf->spec1); + err |= __put_user(f->fmt_gap, &uf->fmt_gap); + err |= __put_user((u64)f->name, (compat_caddr_t __user *)&uf->name); + break; + } + case FDGETDRVPRM32: + { + struct compat_floppy_drive_params __user *uf; + struct floppy_drive_params *f = karg; + + uf = compat_ptr(arg); + err = __put_user(f->cmos, &uf->cmos); + err |= __put_user(f->max_dtr, &uf->max_dtr); + err |= __put_user(f->hlt, &uf->hlt); + err |= __put_user(f->hut, &uf->hut); + err |= __put_user(f->srt, &uf->srt); + err |= __put_user(f->spinup, &uf->spinup); + err |= __put_user(f->spindown, &uf->spindown); + err |= __put_user(f->spindown_offset, &uf->spindown_offset); + err |= __put_user(f->select_delay, &uf->select_delay); + err |= __put_user(f->rps, &uf->rps); + err |= __put_user(f->tracks, &uf->tracks); + err |= __put_user(f->timeout, &uf->timeout); + err |= __put_user(f->interleave_sect, &uf->interleave_sect); + err |= __copy_to_user(&uf->max_errors, &f->max_errors, sizeof(f->max_errors)); + err |= __put_user(f->flags, &uf->flags); + err |= __put_user(f->read_track, &uf->read_track); + err |= __copy_to_user(uf->autodetect, f->autodetect, sizeof(f->autodetect)); + err |= __put_user(f->checkfreq, &uf->checkfreq); + err |= __put_user(f->native_format, &uf->native_format); + break; + } + case FDGETDRVSTAT32: + case FDPOLLDRVSTAT32: + { + struct compat_floppy_drive_struct __user *uf; + struct floppy_drive_struct *f = karg; + + uf = compat_ptr(arg); + err = __put_user(f->flags, &uf->flags); + err |= __put_user(f->spinup_date, &uf->spinup_date); + err |= __put_user(f->select_date, &uf->select_date); + err |= __put_user(f->first_read_date, &uf->first_read_date); + err |= __put_user(f->probed_format, &uf->probed_format); + err |= __put_user(f->track, &uf->track); + err |= __put_user(f->maxblock, &uf->maxblock); + err |= __put_user(f->maxtrack, &uf->maxtrack); + err |= __put_user(f->generation, &uf->generation); + err |= __put_user(f->keep_data, &uf->keep_data); + err |= __put_user(f->fd_ref, &uf->fd_ref); + err |= __put_user(f->fd_device, &uf->fd_device); + err |= __put_user(f->last_checked, &uf->last_checked); + err |= __put_user((u64)f->dmabuf, &uf->dmabuf); + err |= __put_user((u64)f->bufblocks, &uf->bufblocks); + break; + } + case FDGETFDCSTAT32: + { + struct compat_floppy_fdc_state __user *uf; + struct floppy_fdc_state *f = karg; + + uf = compat_ptr(arg); + err = __put_user(f->spec1, &uf->spec1); + err |= __put_user(f->spec2, &uf->spec2); + err |= __put_user(f->dtr, &uf->dtr); + err |= __put_user(f->version, &uf->version); + err |= __put_user(f->dor, &uf->dor); + err |= __put_user(f->address, &uf->address); + err |= __copy_to_user((char __user *)&uf->address + sizeof(uf->address), + (char *)&f->address + sizeof(f->address), sizeof(int)); + err |= __put_user(f->driver_version, &uf->driver_version); + err |= __copy_to_user(uf->track, f->track, sizeof(f->track)); + break; + } + case FDWERRORGET32: + { + struct compat_floppy_write_errors __user *uf; + struct floppy_write_errors *f = karg; + + uf = compat_ptr(arg); + err = __put_user(f->write_errors, &uf->write_errors); + err |= __put_user(f->first_error_sector, &uf->first_error_sector); + err |= __put_user(f->first_error_generation, &uf->first_error_generation); + err |= __put_user(f->last_error_sector, &uf->last_error_sector); + err |= __put_user(f->last_error_generation, &uf->last_error_generation); + err |= __put_user(f->badness, &uf->badness); + break; + } + default: + break; + } + if (err) + err = -EFAULT; + +out: + kfree(karg); + return err; +} + +struct compat_blk_user_trace_setup { + char name[32]; + u16 act_mask; + u32 buf_size; + u32 buf_nr; + compat_u64 start_lba; + compat_u64 end_lba; + u32 pid; +}; +#define BLKTRACESETUP32 _IOWR(0x12, 115, struct compat_blk_user_trace_setup) + +static int compat_blk_trace_setup(struct block_device *bdev, char __user *arg) +{ + struct blk_user_trace_setup buts; + struct compat_blk_user_trace_setup cbuts; + struct request_queue *q; + int ret; + + q = bdev_get_queue(bdev); + if (!q) + return -ENXIO; + + if (copy_from_user(&cbuts, arg, sizeof(cbuts))) + return -EFAULT; + + buts = (struct blk_user_trace_setup) { + .act_mask = cbuts.act_mask, + .buf_size = cbuts.buf_size, + .buf_nr = cbuts.buf_nr, + .start_lba = cbuts.start_lba, + .end_lba = cbuts.end_lba, + .pid = cbuts.pid, + }; + memcpy(&buts.name, &cbuts.name, 32); + + mutex_lock(&bdev->bd_mutex); + ret = do_blk_trace_setup(q, bdev, &buts); + mutex_unlock(&bdev->bd_mutex); + if (ret) + return ret; + + if (copy_to_user(arg, &buts.name, 32)) + return -EFAULT; + + return 0; +} + +static int compat_blkdev_driver_ioctl(struct inode *inode, struct file *file, + struct gendisk *disk, unsigned cmd, unsigned long arg) +{ + int ret; + + switch (arg) { + case HDIO_GET_UNMASKINTR: + case HDIO_GET_MULTCOUNT: + case HDIO_GET_KEEPSETTINGS: + case HDIO_GET_32BIT: + case HDIO_GET_NOWERR: + case HDIO_GET_DMA: + case HDIO_GET_NICE: + case HDIO_GET_WCACHE: + case HDIO_GET_ACOUSTIC: + case HDIO_GET_ADDRESS: + case HDIO_GET_BUSSTATE: + return compat_hdio_ioctl(inode, file, disk, cmd, arg); + case FDSETPRM32: + case FDDEFPRM32: + case FDGETPRM32: + case FDSETDRVPRM32: + case FDGETDRVPRM32: + case FDGETDRVSTAT32: + case FDPOLLDRVSTAT32: + case FDGETFDCSTAT32: + case FDWERRORGET32: + return compat_fd_ioctl(inode, file, disk, cmd, arg); + case CDROMREADAUDIO: + return compat_cdrom_read_audio(inode, file, disk, cmd, arg); + case CDROM_SEND_PACKET: + return compat_cdrom_generic_command(inode, file, disk, cmd, arg); + + /* + * No handler required for the ones below, we just need to + * convert arg to a 64 bit pointer. + */ + case BLKSECTSET: + /* + * 0x03 -- HD/IDE ioctl's used by hdparm and friends. + * Some need translations, these do not. + */ + case HDIO_GET_IDENTITY: + case HDIO_DRIVE_TASK: + case HDIO_DRIVE_CMD: + case HDIO_SCAN_HWIF: + /* 0x330 is reserved -- it used to be HDIO_GETGEO_BIG */ + case 0x330: + /* 0x02 -- Floppy ioctls */ + case FDMSGON: + case FDMSGOFF: + case FDSETEMSGTRESH: + case FDFLUSH: + case FDWERRORCLR: + case FDSETMAXERRS: + case FDGETMAXERRS: + case FDGETDRVTYP: + case FDEJECT: + case FDCLRPRM: + case FDFMTBEG: + case FDFMTEND: + case FDRESET: + case FDTWADDLE: + case FDFMTTRK: + case FDRAWCMD: + /* CDROM stuff */ + case CDROMPAUSE: + case CDROMRESUME: + case CDROMPLAYMSF: + case CDROMPLAYTRKIND: + case CDROMREADTOCHDR: + case CDROMREADTOCENTRY: + case CDROMSTOP: + case CDROMSTART: + case CDROMEJECT: + case CDROMVOLCTRL: + case CDROMSUBCHNL: + case CDROMMULTISESSION: + case CDROM_GET_MCN: + case CDROMRESET: + case CDROMVOLREAD: + case CDROMSEEK: + case CDROMPLAYBLK: + case CDROMCLOSETRAY: + case CDROM_DISC_STATUS: + case CDROM_CHANGER_NSLOTS: + case CDROM_GET_CAPABILITY: + /* Ignore cdrom.h about these next 5 ioctls, they absolutely do + * not take a struct cdrom_read, instead they take a struct cdrom_msf + * which is compatible. + */ + case CDROMREADMODE2: + case CDROMREADMODE1: + case CDROMREADRAW: + case CDROMREADCOOKED: + case CDROMREADALL: + /* DVD ioctls */ + case DVD_READ_STRUCT: + case DVD_WRITE_STRUCT: + case DVD_AUTH: + arg = (unsigned long)compat_ptr(arg); + /* These intepret arg as an unsigned long, not as a pointer, + * so we must not do compat_ptr() conversion. */ + case HDIO_SET_MULTCOUNT: + case HDIO_SET_UNMASKINTR: + case HDIO_SET_KEEPSETTINGS: + case HDIO_SET_32BIT: + case HDIO_SET_NOWERR: + case HDIO_SET_DMA: + case HDIO_SET_PIO_MODE: + case HDIO_SET_NICE: + case HDIO_SET_WCACHE: + case HDIO_SET_ACOUSTIC: + case HDIO_SET_BUSSTATE: + case HDIO_SET_ADDRESS: + case CDROMEJECT_SW: + case CDROM_SET_OPTIONS: + case CDROM_CLEAR_OPTIONS: + case CDROM_SELECT_SPEED: + case CDROM_SELECT_DISC: + case CDROM_MEDIA_CHANGED: + case CDROM_DRIVE_STATUS: + case CDROM_LOCKDOOR: + case CDROM_DEBUG: + break; + default: + /* unknown ioctl number */ + return -ENOIOCTLCMD; + } + + if (disk->fops->unlocked_ioctl) + return disk->fops->unlocked_ioctl(file, cmd, arg); + + if (disk->fops->ioctl) { + lock_kernel(); + ret = disk->fops->ioctl(inode, file, cmd, arg); + unlock_kernel(); + return ret; + } + + return -ENOTTY; +} + +static int compat_blkdev_locked_ioctl(struct inode *inode, struct file *file, + struct block_device *bdev, + unsigned cmd, unsigned long arg) +{ + struct backing_dev_info *bdi; + + switch (cmd) { + case BLKRAGET: + case BLKFRAGET: + if (!arg) + return -EINVAL; + bdi = blk_get_backing_dev_info(bdev); + if (bdi == NULL) + return -ENOTTY; + return compat_put_long(arg, + (bdi->ra_pages * PAGE_CACHE_SIZE) / 512); + case BLKROGET: /* compatible */ + return compat_put_int(arg, bdev_read_only(bdev) != 0); + case BLKBSZGET_32: /* get the logical block size (cf. BLKSSZGET) */ + return compat_put_int(arg, block_size(bdev)); + case BLKSSZGET: /* get block device hardware sector size */ + return compat_put_int(arg, bdev_hardsect_size(bdev)); + case BLKSECTGET: + return compat_put_ushort(arg, + bdev_get_queue(bdev)->max_sectors); + case BLKRASET: /* compatible, but no compat_ptr (!) */ + case BLKFRASET: + if (!capable(CAP_SYS_ADMIN)) + return -EACCES; + bdi = blk_get_backing_dev_info(bdev); + if (bdi == NULL) + return -ENOTTY; + bdi->ra_pages = (arg * 512) / PAGE_CACHE_SIZE; + return 0; + case BLKGETSIZE: + if ((bdev->bd_inode->i_size >> 9) > ~0UL) + return -EFBIG; + return compat_put_ulong(arg, bdev->bd_inode->i_size >> 9); + + case BLKGETSIZE64_32: + return compat_put_u64(arg, bdev->bd_inode->i_size); + + case BLKTRACESETUP32: + return compat_blk_trace_setup(bdev, compat_ptr(arg)); + case BLKTRACESTART: /* compatible */ + case BLKTRACESTOP: /* compatible */ + case BLKTRACETEARDOWN: /* compatible */ + return blk_trace_ioctl(bdev, cmd, compat_ptr(arg)); + } + return -ENOIOCTLCMD; +} + +/* Most of the generic ioctls are handled in the normal fallback path. + This assumes the blkdev's low level compat_ioctl always returns + ENOIOCTLCMD for unknown ioctls. */ +long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg) +{ + int ret = -ENOIOCTLCMD; + struct inode *inode = file->f_mapping->host; + struct block_device *bdev = inode->i_bdev; + struct gendisk *disk = bdev->bd_disk; + + switch (cmd) { + case HDIO_GETGEO: + return compat_hdio_getgeo(disk, bdev, compat_ptr(arg)); + case BLKFLSBUF: + case BLKROSET: + /* + * the ones below are implemented in blkdev_locked_ioctl, + * but we call blkdev_ioctl, which gets the lock for us + */ + case BLKRRPART: + return blkdev_ioctl(inode, file, cmd, + (unsigned long)compat_ptr(arg)); + case BLKBSZSET_32: + return blkdev_ioctl(inode, file, BLKBSZSET, + (unsigned long)compat_ptr(arg)); + case BLKPG: + return compat_blkpg_ioctl(inode, file, cmd, compat_ptr(arg)); + } + + lock_kernel(); + ret = compat_blkdev_locked_ioctl(inode, file, bdev, cmd, arg); + /* FIXME: why do we assume -> compat_ioctl needs the BKL? */ + if (ret == -ENOIOCTLCMD && disk->fops->compat_ioctl) + ret = disk->fops->compat_ioctl(file, cmd, arg); + unlock_kernel(); + + if (ret != -ENOIOCTLCMD) + return ret; + + return compat_blkdev_driver_ioctl(inode, file, disk, cmd, arg); +} diff --git a/block/ioctl.c b/block/ioctl.c index f7e3e8abf887..52d6385216ad 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -217,6 +217,10 @@ int blkdev_driver_ioctl(struct inode *inode, struct file *file, } EXPORT_SYMBOL_GPL(blkdev_driver_ioctl); +/* + * always keep this in sync with compat_blkdev_ioctl() and + * compat_blkdev_locked_ioctl() + */ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd, unsigned long arg) { @@ -284,21 +288,4 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd, return blkdev_driver_ioctl(inode, file, disk, cmd, arg); } - -/* Most of the generic ioctls are handled in the normal fallback path. - This assumes the blkdev's low level compat_ioctl always returns - ENOIOCTLCMD for unknown ioctls. */ -long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg) -{ - struct block_device *bdev = file->f_path.dentry->d_inode->i_bdev; - struct gendisk *disk = bdev->bd_disk; - int ret = -ENOIOCTLCMD; - if (disk->fops->compat_ioctl) { - lock_kernel(); - ret = disk->fops->compat_ioctl(file, cmd, arg); - unlock_kernel(); - } - return ret; -} - EXPORT_SYMBOL_GPL(blkdev_ioctl); diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index ed39313c4085..cd9d2c5d91ae 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -42,6 +42,9 @@ static void drive_stat_acct(struct request *rq, int nr_sectors, int new_io); static void init_request_from_bio(struct request *req, struct bio *bio); static int __make_request(struct request_queue *q, struct bio *bio); static struct io_context *current_io_context(gfp_t gfp_flags, int node); +static void blk_recalc_rq_segments(struct request *rq); +static void blk_rq_bio_prep(struct request_queue *q, struct request *rq, + struct bio *bio); /* * For the allocated request tables @@ -428,7 +431,6 @@ static void queue_flush(struct request_queue *q, unsigned which) static inline struct request *start_ordered(struct request_queue *q, struct request *rq) { - q->bi_size = 0; q->orderr = 0; q->ordered = q->next_ordered; q->ordseq |= QUEUE_ORDSEQ_STARTED; @@ -525,56 +527,36 @@ int blk_do_ordered(struct request_queue *q, struct request **rqp) return 1; } -static int flush_dry_bio_endio(struct bio *bio, unsigned int bytes, int error) -{ - struct request_queue *q = bio->bi_private; - - /* - * This is dry run, restore bio_sector and size. We'll finish - * this request again with the original bi_end_io after an - * error occurs or post flush is complete. - */ - q->bi_size += bytes; - - if (bio->bi_size) - return 1; - - /* Reset bio */ - set_bit(BIO_UPTODATE, &bio->bi_flags); - bio->bi_size = q->bi_size; - bio->bi_sector -= (q->bi_size >> 9); - q->bi_size = 0; - - return 0; -} - -static int ordered_bio_endio(struct request *rq, struct bio *bio, - unsigned int nbytes, int error) +static void req_bio_endio(struct request *rq, struct bio *bio, + unsigned int nbytes, int error) { struct request_queue *q = rq->q; - bio_end_io_t *endio; - void *private; - if (&q->bar_rq != rq) - return 0; - - /* - * Okay, this is the barrier request in progress, dry finish it. - */ - if (error && !q->orderr) - q->orderr = error; + if (&q->bar_rq != rq) { + if (error) + clear_bit(BIO_UPTODATE, &bio->bi_flags); + else if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) + error = -EIO; - endio = bio->bi_end_io; - private = bio->bi_private; - bio->bi_end_io = flush_dry_bio_endio; - bio->bi_private = q; - - bio_endio(bio, nbytes, error); + if (unlikely(nbytes > bio->bi_size)) { + printk("%s: want %u bytes done, only %u left\n", + __FUNCTION__, nbytes, bio->bi_size); + nbytes = bio->bi_size; + } - bio->bi_end_io = endio; - bio->bi_private = private; + bio->bi_size -= nbytes; + bio->bi_sector += (nbytes >> 9); + if (bio->bi_size == 0) + bio_endio(bio, error); + } else { - return 1; + /* + * Okay, this is the barrier request in progress, just + * record the error; + */ + if (error && !q->orderr) + q->orderr = error; + } } /** @@ -1220,16 +1202,40 @@ EXPORT_SYMBOL(blk_dump_rq_flags); void blk_recount_segments(struct request_queue *q, struct bio *bio) { + struct request rq; + struct bio *nxt = bio->bi_next; + rq.q = q; + rq.bio = rq.biotail = bio; + bio->bi_next = NULL; + blk_recalc_rq_segments(&rq); + bio->bi_next = nxt; + bio->bi_phys_segments = rq.nr_phys_segments; + bio->bi_hw_segments = rq.nr_hw_segments; + bio->bi_flags |= (1 << BIO_SEG_VALID); +} +EXPORT_SYMBOL(blk_recount_segments); + +static void blk_recalc_rq_segments(struct request *rq) +{ + int nr_phys_segs; + int nr_hw_segs; + unsigned int phys_size; + unsigned int hw_size; struct bio_vec *bv, *bvprv = NULL; - int i, nr_phys_segs, nr_hw_segs, seg_size, hw_seg_size, cluster; + int seg_size; + int hw_seg_size; + int cluster; + struct req_iterator iter; int high, highprv = 1; + struct request_queue *q = rq->q; - if (unlikely(!bio->bi_io_vec)) + if (!rq->bio) return; cluster = q->queue_flags & (1 << QUEUE_FLAG_CLUSTER); - hw_seg_size = seg_size = nr_phys_segs = nr_hw_segs = 0; - bio_for_each_segment(bv, bio, i) { + hw_seg_size = seg_size = 0; + phys_size = hw_size = nr_phys_segs = nr_hw_segs = 0; + rq_for_each_segment(bv, rq, iter) { /* * the trick here is making sure that a high page is never * considered part of another segment, since that might @@ -1255,12 +1261,13 @@ void blk_recount_segments(struct request_queue *q, struct bio *bio) } new_segment: if (BIOVEC_VIRT_MERGEABLE(bvprv, bv) && - !BIOVEC_VIRT_OVERSIZE(hw_seg_size + bv->bv_len)) { + !BIOVEC_VIRT_OVERSIZE(hw_seg_size + bv->bv_len)) hw_seg_size += bv->bv_len; - } else { + else { new_hw_segment: - if (hw_seg_size > bio->bi_hw_front_size) - bio->bi_hw_front_size = hw_seg_size; + if (nr_hw_segs == 1 && + hw_seg_size > rq->bio->bi_hw_front_size) + rq->bio->bi_hw_front_size = hw_seg_size; hw_seg_size = BIOVEC_VIRT_START_SIZE(bv) + bv->bv_len; nr_hw_segs++; } @@ -1270,15 +1277,15 @@ new_hw_segment: seg_size = bv->bv_len; highprv = high; } - if (hw_seg_size > bio->bi_hw_back_size) - bio->bi_hw_back_size = hw_seg_size; - if (nr_hw_segs == 1 && hw_seg_size > bio->bi_hw_front_size) - bio->bi_hw_front_size = hw_seg_size; - bio->bi_phys_segments = nr_phys_segs; - bio->bi_hw_segments = nr_hw_segs; - bio->bi_flags |= (1 << BIO_SEG_VALID); + + if (nr_hw_segs == 1 && + hw_seg_size > rq->bio->bi_hw_front_size) + rq->bio->bi_hw_front_size = hw_seg_size; + if (hw_seg_size > rq->biotail->bi_hw_back_size) + rq->biotail->bi_hw_back_size = hw_seg_size; + rq->nr_phys_segments = nr_phys_segs; + rq->nr_hw_segments = nr_hw_segs; } -EXPORT_SYMBOL(blk_recount_segments); static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio, struct bio *nxt) @@ -1325,8 +1332,8 @@ int blk_rq_map_sg(struct request_queue *q, struct request *rq, struct scatterlist *sg) { struct bio_vec *bvec, *bvprv; - struct bio *bio; - int nsegs, i, cluster; + struct req_iterator iter; + int nsegs, cluster; nsegs = 0; cluster = q->queue_flags & (1 << QUEUE_FLAG_CLUSTER); @@ -1335,35 +1342,30 @@ int blk_rq_map_sg(struct request_queue *q, struct request *rq, * for each bio in rq */ bvprv = NULL; - rq_for_each_bio(bio, rq) { - /* - * for each segment in bio - */ - bio_for_each_segment(bvec, bio, i) { - int nbytes = bvec->bv_len; + rq_for_each_segment(bvec, rq, iter) { + int nbytes = bvec->bv_len; - if (bvprv && cluster) { - if (sg[nsegs - 1].length + nbytes > q->max_segment_size) - goto new_segment; + if (bvprv && cluster) { + if (sg[nsegs - 1].length + nbytes > q->max_segment_size) + goto new_segment; - if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec)) - goto new_segment; - if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec)) - goto new_segment; + if (!BIOVEC_PHYS_MERGEABLE(bvprv, bvec)) + goto new_segment; + if (!BIOVEC_SEG_BOUNDARY(q, bvprv, bvec)) + goto new_segment; - sg[nsegs - 1].length += nbytes; - } else { + sg[nsegs - 1].length += nbytes; + } else { new_segment: - memset(&sg[nsegs],0,sizeof(struct scatterlist)); - sg[nsegs].page = bvec->bv_page; - sg[nsegs].length = nbytes; - sg[nsegs].offset = bvec->bv_offset; + memset(&sg[nsegs],0,sizeof(struct scatterlist)); + sg[nsegs].page = bvec->bv_page; + sg[nsegs].length = nbytes; + sg[nsegs].offset = bvec->bv_offset; - nsegs++; - } - bvprv = bvec; - } /* segments in bio */ - } /* bios in rq */ + nsegs++; + } + bvprv = bvec; + } /* segments in rq */ return nsegs; } @@ -1420,7 +1422,8 @@ static inline int ll_new_hw_segment(struct request_queue *q, return 1; } -int ll_back_merge_fn(struct request_queue *q, struct request *req, struct bio *bio) +static int ll_back_merge_fn(struct request_queue *q, struct request *req, + struct bio *bio) { unsigned short max_sectors; int len; @@ -1456,7 +1459,6 @@ int ll_back_merge_fn(struct request_queue *q, struct request *req, struct bio *b return ll_new_hw_segment(q, req, bio); } -EXPORT_SYMBOL(ll_back_merge_fn); static int ll_front_merge_fn(struct request_queue *q, struct request *req, struct bio *bio) @@ -2346,6 +2348,23 @@ static int __blk_rq_unmap_user(struct bio *bio) return ret; } +int blk_rq_append_bio(struct request_queue *q, struct request *rq, + struct bio *bio) +{ + if (!rq->bio) + blk_rq_bio_prep(q, rq, bio); + else if (!ll_back_merge_fn(q, rq, bio)) + return -EINVAL; + else { + rq->biotail->bi_next = bio; + rq->biotail = bio; + + rq->data_len += bio->bi_size; + } + return 0; +} +EXPORT_SYMBOL(blk_rq_append_bio); + static int __blk_rq_map_user(struct request_queue *q, struct request *rq, void __user *ubuf, unsigned int len) { @@ -2377,23 +2396,12 @@ static int __blk_rq_map_user(struct request_queue *q, struct request *rq, */ bio_get(bio); - if (!rq->bio) - blk_rq_bio_prep(q, rq, bio); - else if (!ll_back_merge_fn(q, rq, bio)) { - ret = -EINVAL; - goto unmap_bio; - } else { - rq->biotail->bi_next = bio; - rq->biotail = bio; - - rq->data_len += bio->bi_size; - } - - return bio->bi_size; + ret = blk_rq_append_bio(q, rq, bio); + if (!ret) + return bio->bi_size; -unmap_bio: /* if it was boucned we must call the end io function */ - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); __blk_rq_unmap_user(orig_bio); bio_put(bio); return ret; @@ -2502,7 +2510,7 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq, return PTR_ERR(bio); if (bio->bi_size != len) { - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); bio_unmap_user(bio); return -EINVAL; } @@ -2912,15 +2920,9 @@ static void init_request_from_bio(struct request *req, struct bio *bio) req->errors = 0; req->hard_sector = req->sector = bio->bi_sector; - req->hard_nr_sectors = req->nr_sectors = bio_sectors(bio); - req->current_nr_sectors = req->hard_cur_sectors = bio_cur_sectors(bio); - req->nr_phys_segments = bio_phys_segments(req->q, bio); - req->nr_hw_segments = bio_hw_segments(req->q, bio); - req->buffer = bio_data(bio); /* see ->buffer comment above */ - req->bio = req->biotail = bio; req->ioprio = bio_prio(bio); - req->rq_disk = bio->bi_bdev->bd_disk; req->start_time = jiffies; + blk_rq_bio_prep(req->q, req, bio); } static int __make_request(struct request_queue *q, struct bio *bio) @@ -3038,7 +3040,7 @@ out: return 0; end_io: - bio_endio(bio, nr_sectors << 9, err); + bio_endio(bio, err); return 0; } @@ -3185,7 +3187,7 @@ static inline void __generic_make_request(struct bio *bio) bdevname(bio->bi_bdev, b), (long long) bio->bi_sector); end_io: - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); break; } @@ -3329,48 +3331,6 @@ void submit_bio(int rw, struct bio *bio) EXPORT_SYMBOL(submit_bio); -static void blk_recalc_rq_segments(struct request *rq) -{ - struct bio *bio, *prevbio = NULL; - int nr_phys_segs, nr_hw_segs; - unsigned int phys_size, hw_size; - struct request_queue *q = rq->q; - - if (!rq->bio) - return; - - phys_size = hw_size = nr_phys_segs = nr_hw_segs = 0; - rq_for_each_bio(bio, rq) { - /* Force bio hw/phys segs to be recalculated. */ - bio->bi_flags &= ~(1 << BIO_SEG_VALID); - - nr_phys_segs += bio_phys_segments(q, bio); - nr_hw_segs += bio_hw_segments(q, bio); - if (prevbio) { - int pseg = phys_size + prevbio->bi_size + bio->bi_size; - int hseg = hw_size + prevbio->bi_size + bio->bi_size; - - if (blk_phys_contig_segment(q, prevbio, bio) && - pseg <= q->max_segment_size) { - nr_phys_segs--; - phys_size += prevbio->bi_size + bio->bi_size; - } else - phys_size = 0; - - if (blk_hw_contig_segment(q, prevbio, bio) && - hseg <= q->max_segment_size) { - nr_hw_segs--; - hw_size += prevbio->bi_size + bio->bi_size; - } else - hw_size = 0; - } - prevbio = bio; - } - - rq->nr_phys_segments = nr_phys_segs; - rq->nr_hw_segments = nr_hw_segs; -} - static void blk_recalc_rq_sectors(struct request *rq, int nsect) { if (blk_fs_request(rq)) { @@ -3442,8 +3402,7 @@ static int __end_that_request_first(struct request *req, int uptodate, if (nr_bytes >= bio->bi_size) { req->bio = bio->bi_next; nbytes = bio->bi_size; - if (!ordered_bio_endio(req, bio, nbytes, error)) - bio_endio(bio, nbytes, error); + req_bio_endio(req, bio, nbytes, error); next_idx = 0; bio_nbytes = 0; } else { @@ -3498,8 +3457,7 @@ static int __end_that_request_first(struct request *req, int uptodate, * if the request wasn't completed, update state */ if (bio_nbytes) { - if (!ordered_bio_endio(req, bio, bio_nbytes, error)) - bio_endio(bio, bio_nbytes, error); + req_bio_endio(req, bio, bio_nbytes, error); bio->bi_idx += next_idx; bio_iovec(bio)->bv_offset += nr_bytes; bio_iovec(bio)->bv_len -= nr_bytes; @@ -3574,7 +3532,7 @@ static void blk_done_softirq(struct softirq_action *h) } } -static int blk_cpu_notify(struct notifier_block *self, unsigned long action, +static int __cpuinit blk_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu) { /* @@ -3595,7 +3553,7 @@ static int blk_cpu_notify(struct notifier_block *self, unsigned long action, } -static struct notifier_block __devinitdata blk_cpu_notifier = { +static struct notifier_block blk_cpu_notifier __cpuinitdata = { .notifier_call = blk_cpu_notify, }; @@ -3680,8 +3638,8 @@ void end_request(struct request *req, int uptodate) EXPORT_SYMBOL(end_request); -void blk_rq_bio_prep(struct request_queue *q, struct request *rq, - struct bio *bio) +static void blk_rq_bio_prep(struct request_queue *q, struct request *rq, + struct bio *bio) { /* first two bits are identical in rq->cmd_flags and bio->bi_rw */ rq->cmd_flags |= (bio->bi_rw & 3); @@ -3695,9 +3653,10 @@ void blk_rq_bio_prep(struct request_queue *q, struct request *rq, rq->data_len = bio->bi_size; rq->bio = rq->biotail = bio; -} -EXPORT_SYMBOL(blk_rq_bio_prep); + if (bio->bi_bdev) + rq->rq_disk = bio->bi_bdev->bd_disk; +} int kblockd_schedule_work(struct work_struct *work) { diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 007faaf008e7..b1d00ef6659c 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -138,7 +138,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) buf = mempool_alloc(d->bufpool, GFP_NOIO); if (buf == NULL) { printk(KERN_INFO "aoe: buf allocation failure\n"); - bio_endio(bio, bio->bi_size, -ENOMEM); + bio_endio(bio, -ENOMEM); return 0; } memset(buf, 0, sizeof(*buf)); @@ -159,7 +159,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) d->aoemajor, d->aoeminor); spin_unlock_irqrestore(&d->lock, flags); mempool_free(buf, d->bufpool); - bio_endio(bio, bio->bi_size, -ENXIO); + bio_endio(bio, -ENXIO); return 0; } diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index 01fbdd38e3be..5abae34ad65b 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -652,7 +652,7 @@ aoecmd_ata_rsp(struct sk_buff *skb) disk_stat_add(disk, sectors[rw], n_sect); disk_stat_add(disk, io_ticks, duration); n = (buf->flags & BUFFL_FAIL) ? -EIO : 0; - bio_endio(buf->bio, buf->bio->bi_size, n); + bio_endio(buf->bio, n); mempool_free(buf, d->bufpool); } } diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c index 05a97197c918..51f50710e5fc 100644 --- a/drivers/block/aoe/aoedev.c +++ b/drivers/block/aoe/aoedev.c @@ -119,7 +119,7 @@ aoedev_downdev(struct aoedev *d) bio = buf->bio; if (--buf->nframesout == 0) { mempool_free(buf, d->bufpool); - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); } skb_shinfo(f->skb)->nr_frags = f->skb->data_len = 0; } @@ -130,7 +130,7 @@ aoedev_downdev(struct aoedev *d) list_del(d->bufq.next); bio = buf->bio; mempool_free(buf, d->bufpool); - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); } if (d->gd) diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 084358a828e9..28d145756f6c 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1194,7 +1194,7 @@ static inline void complete_buffers(struct bio *bio, int status) int nr_sectors = bio_sectors(bio); bio->bi_next = NULL; - bio_endio(bio, nr_sectors << 9, status ? 0 : -EIO); + bio_endio(bio, status ? 0 : -EIO); bio = xbh; } } diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index eb9799acf65b..3853c9a38d6a 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -987,7 +987,7 @@ static inline void complete_buffers(struct bio *bio, int ok) xbh = bio->bi_next; bio->bi_next = NULL; - bio_endio(bio, nr_sectors << 9, ok ? 0 : -EIO); + bio_endio(bio, ok ? 0 : -EIO); bio = xbh; } diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 085b7794fb3e..80483aac4cc9 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -2437,22 +2437,19 @@ static void rw_interrupt(void) /* Compute maximal contiguous buffer size. */ static int buffer_chain_size(void) { - struct bio *bio; struct bio_vec *bv; - int size, i; + int size; + struct req_iterator iter; char *base; base = bio_data(current_req->bio); size = 0; - rq_for_each_bio(bio, current_req) { - bio_for_each_segment(bv, bio, i) { - if (page_address(bv->bv_page) + bv->bv_offset != - base + size) - break; + rq_for_each_segment(bv, current_req, iter) { + if (page_address(bv->bv_page) + bv->bv_offset != base + size) + break; - size += bv->bv_len; - } + size += bv->bv_len; } return size >> 9; @@ -2479,9 +2476,9 @@ static void copy_buffer(int ssize, int max_sector, int max_sector_2) { int remaining; /* number of transferred 512-byte sectors */ struct bio_vec *bv; - struct bio *bio; char *buffer, *dma_buffer; - int size, i; + int size; + struct req_iterator iter; max_sector = transfer_size(ssize, min(max_sector, max_sector_2), @@ -2514,43 +2511,41 @@ static void copy_buffer(int ssize, int max_sector, int max_sector_2) size = current_req->current_nr_sectors << 9; - rq_for_each_bio(bio, current_req) { - bio_for_each_segment(bv, bio, i) { - if (!remaining) - break; + rq_for_each_segment(bv, current_req, iter) { + if (!remaining) + break; - size = bv->bv_len; - SUPBOUND(size, remaining); + size = bv->bv_len; + SUPBOUND(size, remaining); - buffer = page_address(bv->bv_page) + bv->bv_offset; + buffer = page_address(bv->bv_page) + bv->bv_offset; #ifdef FLOPPY_SANITY_CHECK - if (dma_buffer + size > - floppy_track_buffer + (max_buffer_sectors << 10) || - dma_buffer < floppy_track_buffer) { - DPRINT("buffer overrun in copy buffer %d\n", - (int)((floppy_track_buffer - - dma_buffer) >> 9)); - printk("fsector_t=%d buffer_min=%d\n", - fsector_t, buffer_min); - printk("current_count_sectors=%ld\n", - current_count_sectors); - if (CT(COMMAND) == FD_READ) - printk("read\n"); - if (CT(COMMAND) == FD_WRITE) - printk("write\n"); - break; - } - if (((unsigned long)buffer) % 512) - DPRINT("%p buffer not aligned\n", buffer); -#endif + if (dma_buffer + size > + floppy_track_buffer + (max_buffer_sectors << 10) || + dma_buffer < floppy_track_buffer) { + DPRINT("buffer overrun in copy buffer %d\n", + (int)((floppy_track_buffer - + dma_buffer) >> 9)); + printk("fsector_t=%d buffer_min=%d\n", + fsector_t, buffer_min); + printk("current_count_sectors=%ld\n", + current_count_sectors); if (CT(COMMAND) == FD_READ) - memcpy(buffer, dma_buffer, size); - else - memcpy(dma_buffer, buffer, size); - - remaining -= size; - dma_buffer += size; + printk("read\n"); + if (CT(COMMAND) == FD_WRITE) + printk("write\n"); + break; } + if (((unsigned long)buffer) % 512) + DPRINT("%p buffer not aligned\n", buffer); +#endif + if (CT(COMMAND) == FD_READ) + memcpy(buffer, dma_buffer, size); + else + memcpy(dma_buffer, buffer, size); + + remaining -= size; + dma_buffer += size; } #ifdef FLOPPY_SANITY_CHECK if (remaining) { @@ -3815,14 +3810,10 @@ static int check_floppy_change(struct gendisk *disk) * a disk in the drive, and whether that disk is writable. */ -static int floppy_rb0_complete(struct bio *bio, unsigned int bytes_done, +static void floppy_rb0_complete(struct bio *bio, int err) { - if (bio->bi_size) - return 1; - complete((struct completion *)bio->bi_private); - return 0; } static int __floppy_read_block_0(struct block_device *bdev) diff --git a/drivers/block/lguest_blk.c b/drivers/block/lguest_blk.c index 160cf14431ac..fa8e42341b87 100644 --- a/drivers/block/lguest_blk.c +++ b/drivers/block/lguest_blk.c @@ -142,25 +142,23 @@ static irqreturn_t lgb_irq(int irq, void *_bd) * return the total length. */ static unsigned int req_to_dma(struct request *req, struct lguest_dma *dma) { - unsigned int i = 0, idx, len = 0; - struct bio *bio; - - rq_for_each_bio(bio, req) { - struct bio_vec *bvec; - bio_for_each_segment(bvec, bio, idx) { - /* We told the block layer not to give us too many. */ - BUG_ON(i == LGUEST_MAX_DMA_SECTIONS); - /* If we had a zero-length segment, it would look like - * the end of the data referred to by the "struct - * lguest_dma", so make sure that doesn't happen. */ - BUG_ON(!bvec->bv_len); - /* Convert page & offset to a physical address */ - dma->addr[i] = page_to_phys(bvec->bv_page) - + bvec->bv_offset; - dma->len[i] = bvec->bv_len; - len += bvec->bv_len; - i++; - } + unsigned int i = 0, len = 0; + struct req_iterator iter; + struct bio_vec *bvec; + + rq_for_each_segment(bvec, req, iter) { + /* We told the block layer not to give us too many. */ + BUG_ON(i == LGUEST_MAX_DMA_SECTIONS); + /* If we had a zero-length segment, it would look like + * the end of the data referred to by the "struct + * lguest_dma", so make sure that doesn't happen. */ + BUG_ON(!bvec->bv_len); + /* Convert page & offset to a physical address */ + dma->addr[i] = page_to_phys(bvec->bv_page) + + bvec->bv_offset; + dma->len[i] = bvec->bv_len; + len += bvec->bv_len; + i++; } /* If the array isn't full, we mark the end with a 0 length */ if (i < LGUEST_MAX_DMA_SECTIONS) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 9f015fce4135..b9233a06934c 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -551,7 +551,7 @@ static int loop_make_request(struct request_queue *q, struct bio *old_bio) out: spin_unlock_irq(&lo->lo_lock); - bio_io_error(old_bio, old_bio->bi_size); + bio_io_error(old_bio); return 0; } @@ -580,7 +580,7 @@ static inline void loop_handle_bio(struct loop_device *lo, struct bio *bio) bio_put(bio); } else { int ret = do_bio_filebacked(lo, bio); - bio_endio(bio, bio->bi_size, ret); + bio_endio(bio, ret); } } diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index be92c658f06e..be5ec3a9b1fc 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -180,7 +180,7 @@ static inline int sock_send_bvec(struct socket *sock, struct bio_vec *bvec, static int nbd_send_req(struct nbd_device *lo, struct request *req) { - int result, i, flags; + int result, flags; struct nbd_request request; unsigned long size = req->nr_sectors << 9; struct socket *sock = lo->sock; @@ -205,27 +205,23 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req) } if (nbd_cmd(req) == NBD_CMD_WRITE) { - struct bio *bio; + struct req_iterator iter; + struct bio_vec *bvec; /* * we are really probing at internals to determine * whether to set MSG_MORE or not... */ - rq_for_each_bio(bio, req) { - struct bio_vec *bvec; - bio_for_each_segment(bvec, bio, i) { - flags = 0; - if ((i < (bio->bi_vcnt - 1)) || bio->bi_next) - flags = MSG_MORE; - dprintk(DBG_TX, "%s: request %p: sending %d bytes data\n", - lo->disk->disk_name, req, - bvec->bv_len); - result = sock_send_bvec(sock, bvec, flags); - if (result <= 0) { - printk(KERN_ERR "%s: Send data failed (result %d)\n", - lo->disk->disk_name, - result); - goto error_out; - } + rq_for_each_segment(bvec, req, iter) { + flags = 0; + if (!rq_iter_last(req, iter)) + flags = MSG_MORE; + dprintk(DBG_TX, "%s: request %p: sending %d bytes data\n", + lo->disk->disk_name, req, bvec->bv_len); + result = sock_send_bvec(sock, bvec, flags); + if (result <= 0) { + printk(KERN_ERR "%s: Send data failed (result %d)\n", + lo->disk->disk_name, result); + goto error_out; } } } @@ -321,22 +317,19 @@ static struct request *nbd_read_stat(struct nbd_device *lo) dprintk(DBG_RX, "%s: request %p: got reply\n", lo->disk->disk_name, req); if (nbd_cmd(req) == NBD_CMD_READ) { - int i; - struct bio *bio; - rq_for_each_bio(bio, req) { - struct bio_vec *bvec; - bio_for_each_segment(bvec, bio, i) { - result = sock_recv_bvec(sock, bvec); - if (result <= 0) { - printk(KERN_ERR "%s: Receive data failed (result %d)\n", - lo->disk->disk_name, - result); - req->errors++; - return req; - } - dprintk(DBG_RX, "%s: request %p: got %d bytes data\n", - lo->disk->disk_name, req, bvec->bv_len); + struct req_iterator iter; + struct bio_vec *bvec; + + rq_for_each_segment(bvec, req, iter) { + result = sock_recv_bvec(sock, bvec); + if (result <= 0) { + printk(KERN_ERR "%s: Receive data failed (result %d)\n", + lo->disk->disk_name, result); + req->errors++; + return req; } + dprintk(DBG_RX, "%s: request %p: got %d bytes data\n", + lo->disk->disk_name, req, bvec->bv_len); } } return req; diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index fadbfd880bab..540bf3676985 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -1058,15 +1058,12 @@ static void pkt_make_local_copy(struct packet_data *pkt, struct bio_vec *bvec) } } -static int pkt_end_io_read(struct bio *bio, unsigned int bytes_done, int err) +static void pkt_end_io_read(struct bio *bio, int err) { struct packet_data *pkt = bio->bi_private; struct pktcdvd_device *pd = pkt->pd; BUG_ON(!pd); - if (bio->bi_size) - return 1; - VPRINTK("pkt_end_io_read: bio=%p sec0=%llx sec=%llx err=%d\n", bio, (unsigned long long)pkt->sector, (unsigned long long)bio->bi_sector, err); @@ -1077,19 +1074,14 @@ static int pkt_end_io_read(struct bio *bio, unsigned int bytes_done, int err) wake_up(&pd->wqueue); } pkt_bio_finished(pd); - - return 0; } -static int pkt_end_io_packet_write(struct bio *bio, unsigned int bytes_done, int err) +static void pkt_end_io_packet_write(struct bio *bio, int err) { struct packet_data *pkt = bio->bi_private; struct pktcdvd_device *pd = pkt->pd; BUG_ON(!pd); - if (bio->bi_size) - return 1; - VPRINTK("pkt_end_io_packet_write: id=%d, err=%d\n", pkt->id, err); pd->stats.pkt_ended++; @@ -1098,7 +1090,6 @@ static int pkt_end_io_packet_write(struct bio *bio, unsigned int bytes_done, int atomic_dec(&pkt->io_wait); atomic_inc(&pkt->run_sm); wake_up(&pd->wqueue); - return 0; } /* @@ -1470,7 +1461,7 @@ static void pkt_finish_packet(struct packet_data *pkt, int uptodate) while (bio) { next = bio->bi_next; bio->bi_next = NULL; - bio_endio(bio, bio->bi_size, uptodate ? 0 : -EIO); + bio_endio(bio, uptodate ? 0 : -EIO); bio = next; } pkt->orig_bios = pkt->orig_bios_tail = NULL; @@ -2462,19 +2453,15 @@ static int pkt_close(struct inode *inode, struct file *file) } -static int pkt_end_io_read_cloned(struct bio *bio, unsigned int bytes_done, int err) +static void pkt_end_io_read_cloned(struct bio *bio, int err) { struct packet_stacked_data *psd = bio->bi_private; struct pktcdvd_device *pd = psd->pd; - if (bio->bi_size) - return 1; - bio_put(bio); - bio_endio(psd->bio, psd->bio->bi_size, err); + bio_endio(psd->bio, err); mempool_free(psd, psd_pool); pkt_bio_finished(pd); - return 0; } static int pkt_make_request(struct request_queue *q, struct bio *bio) @@ -2620,7 +2607,7 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) } return 0; end_io: - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index aa8b890c80d7..06d0552cf49c 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -91,30 +91,29 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev, struct request *req, int gather) { unsigned int offset = 0; - struct bio *bio; - sector_t sector; + struct req_iterator iter; struct bio_vec *bvec; - unsigned int i = 0, j; + unsigned int i = 0; size_t size; void *buf; - rq_for_each_bio(bio, req) { - sector = bio->bi_sector; + rq_for_each_segment(bvec, req, iter) { + unsigned long flags; dev_dbg(&dev->sbd.core, "%s:%u: bio %u: %u segs %u sectors from %lu\n", - __func__, __LINE__, i, bio_segments(bio), - bio_sectors(bio), sector); - bio_for_each_segment(bvec, bio, j) { - size = bvec->bv_len; - buf = __bio_kmap_atomic(bio, j, KM_IRQ0); - if (gather) - memcpy(dev->bounce_buf+offset, buf, size); - else - memcpy(buf, dev->bounce_buf+offset, size); - offset += size; - flush_kernel_dcache_page(bio_iovec_idx(bio, j)->bv_page); - __bio_kunmap_atomic(bio, KM_IRQ0); - } + __func__, __LINE__, i, bio_segments(iter.bio), + bio_sectors(iter.bio), + (unsigned long)iter.bio->bi_sector); + + size = bvec->bv_len; + buf = bvec_kmap_irq(bvec, &flags); + if (gather) + memcpy(dev->bounce_buf+offset, buf, size); + else + memcpy(buf, dev->bounce_buf+offset, size); + offset += size; + flush_kernel_dcache_page(bvec->bv_page); + bvec_kunmap_irq(bvec, &flags); i++; } } @@ -130,12 +129,13 @@ static int ps3disk_submit_request_sg(struct ps3_storage_device *dev, #ifdef DEBUG unsigned int n = 0; - struct bio *bio; + struct bio_vec *bv; + struct req_iterator iter; - rq_for_each_bio(bio, req) + rq_for_each_segment(bv, req, iter) n++; dev_dbg(&dev->sbd.core, - "%s:%u: %s req has %u bios for %lu sectors %lu hard sectors\n", + "%s:%u: %s req has %u bvecs for %lu sectors %lu hard sectors\n", __func__, __LINE__, op, n, req->nr_sectors, req->hard_nr_sectors); #endif diff --git a/drivers/block/rd.c b/drivers/block/rd.c index 65150b548f3a..701ea77f62e9 100644 --- a/drivers/block/rd.c +++ b/drivers/block/rd.c @@ -287,10 +287,10 @@ static int rd_make_request(struct request_queue *q, struct bio *bio) if (ret) goto fail; - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); return 0; fail: - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } diff --git a/drivers/block/umem.c b/drivers/block/umem.c index 6b7c02d6360d..99806f9ee4ce 100644 --- a/drivers/block/umem.c +++ b/drivers/block/umem.c @@ -52,7 +52,7 @@ #include <linux/fcntl.h> /* O_ACCMODE */ #include <linux/hdreg.h> /* HDIO_GETGEO */ -#include <linux/umem.h> +#include "umem.h" #include <asm/uaccess.h> #include <asm/io.h> @@ -67,9 +67,10 @@ * Version Information */ -#define DRIVER_VERSION "v2.3" -#define DRIVER_AUTHOR "San Mehat, Johannes Erdfelt, NeilBrown" -#define DRIVER_DESC "Micro Memory(tm) PCI memory board block driver" +#define DRIVER_NAME "umem" +#define DRIVER_VERSION "v2.3" +#define DRIVER_AUTHOR "San Mehat, Johannes Erdfelt, NeilBrown" +#define DRIVER_DESC "Micro Memory(tm) PCI memory board block driver" static int debug; /* #define HW_TRACE(x) writeb(x,cards[0].csr_remap + MEMCTRLSTATUS_MAGIC) */ @@ -97,15 +98,9 @@ static int major_nr; #include <linux/blkpg.h> struct cardinfo { - int card_number; struct pci_dev *dev; - int irq; - - unsigned long csr_base; unsigned char __iomem *csr_remap; - unsigned long csr_len; - unsigned int win_size; /* PCI window size */ unsigned int mm_size; /* size in kbytes */ unsigned int init_size; /* initial segment, in sectors, @@ -113,6 +108,8 @@ struct cardinfo { * have been written */ struct bio *bio, *currentbio, **biotail; + int current_idx; + sector_t current_sector; struct request_queue *queue; @@ -121,6 +118,7 @@ struct cardinfo { struct mm_dma_desc *desc; int cnt, headcnt; struct bio *bio, **biotail; + int idx; } mm_pages[2]; #define DESC_PER_PAGE ((PAGE_SIZE*2)/sizeof(struct mm_dma_desc)) @@ -233,7 +231,7 @@ static void dump_regs(struct cardinfo *card) */ static void dump_dmastat(struct cardinfo *card, unsigned int dmastat) { - printk(KERN_DEBUG "MM%d*: DMAstat - ", card->card_number); + dev_printk(KERN_DEBUG, &card->dev->dev, "DMAstat - "); if (dmastat & DMASCR_ANY_ERR) printk("ANY_ERR "); if (dmastat & DMASCR_MBE_ERR) @@ -295,7 +293,7 @@ static void mm_start_io(struct cardinfo *card) desc->control_bits &= ~cpu_to_le32(DMASCR_CHAIN_EN); desc->sem_control_bits = desc->control_bits; - + if (debug & DEBUG_LED_ON_TRANSFER) set_led(card, LED_REMOVE, LED_ON); @@ -329,7 +327,7 @@ static int add_bio(struct cardinfo *card); static void activate(struct cardinfo *card) { - /* if No page is Active, and Ready is + /* if No page is Active, and Ready is * not empty, then switch Ready page * to active and start IO. * Then add any bh's that are available to Ready @@ -368,7 +366,7 @@ static void mm_unplug_device(struct request_queue *q) spin_unlock_irqrestore(&card->lock, flags); } -/* +/* * If there is room on Ready page, take * one bh off list and add it. * return 1 if there was room, else 0. @@ -380,12 +378,16 @@ static int add_bio(struct cardinfo *card) dma_addr_t dma_handle; int offset; struct bio *bio; + struct bio_vec *vec; + int idx; int rw; int len; bio = card->currentbio; if (!bio && card->bio) { card->currentbio = card->bio; + card->current_idx = card->bio->bi_idx; + card->current_sector = card->bio->bi_sector; card->bio = card->bio->bi_next; if (card->bio == NULL) card->biotail = &card->bio; @@ -394,15 +396,17 @@ static int add_bio(struct cardinfo *card) } if (!bio) return 0; + idx = card->current_idx; rw = bio_rw(bio); if (card->mm_pages[card->Ready].cnt >= DESC_PER_PAGE) return 0; - len = bio_iovec(bio)->bv_len; - dma_handle = pci_map_page(card->dev, - bio_page(bio), - bio_offset(bio), + vec = bio_iovec_idx(bio, idx); + len = vec->bv_len; + dma_handle = pci_map_page(card->dev, + vec->bv_page, + vec->bv_offset, len, (rw==READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE); @@ -410,6 +414,8 @@ static int add_bio(struct cardinfo *card) p = &card->mm_pages[card->Ready]; desc = &p->desc[p->cnt]; p->cnt++; + if (p->bio == NULL) + p->idx = idx; if ((p->biotail) != &bio->bi_next) { *(p->biotail) = bio; p->biotail = &(bio->bi_next); @@ -419,7 +425,7 @@ static int add_bio(struct cardinfo *card) desc->data_dma_handle = dma_handle; desc->pci_addr = cpu_to_le64((u64)desc->data_dma_handle); - desc->local_addr= cpu_to_le64(bio->bi_sector << 9); + desc->local_addr = cpu_to_le64(card->current_sector << 9); desc->transfer_size = cpu_to_le32(len); offset = ( ((char*)&desc->sem_control_bits) - ((char*)p->desc)); desc->sem_addr = cpu_to_le64((u64)(p->page_dma+offset)); @@ -435,10 +441,10 @@ static int add_bio(struct cardinfo *card) desc->control_bits |= cpu_to_le32(DMASCR_TRANSFER_READ); desc->sem_control_bits = desc->control_bits; - bio->bi_sector += (len>>9); - bio->bi_size -= len; - bio->bi_idx++; - if (bio->bi_idx >= bio->bi_vcnt) + card->current_sector += (len >> 9); + idx++; + card->current_idx = idx; + if (idx >= bio->bi_vcnt) card->currentbio = NULL; return 1; @@ -461,7 +467,7 @@ static void process_page(unsigned long data) if (card->Active < 0) goto out_unlock; page = &card->mm_pages[card->Active]; - + while (page->headcnt < page->cnt) { struct bio *bio = page->bio; struct mm_dma_desc *desc = &page->desc[page->headcnt]; @@ -471,32 +477,34 @@ static void process_page(unsigned long data) if (!(control & DMASCR_DMA_COMPLETE)) { control = dma_status; - last=1; + last=1; } page->headcnt++; - idx = bio->bi_phys_segments; - bio->bi_phys_segments++; - if (bio->bi_phys_segments >= bio->bi_vcnt) + idx = page->idx; + page->idx++; + if (page->idx >= bio->bi_vcnt) { page->bio = bio->bi_next; + page->idx = page->bio->bi_idx; + } - pci_unmap_page(card->dev, desc->data_dma_handle, + pci_unmap_page(card->dev, desc->data_dma_handle, bio_iovec_idx(bio,idx)->bv_len, (control& DMASCR_TRANSFER_READ) ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE); if (control & DMASCR_HARD_ERROR) { /* error */ clear_bit(BIO_UPTODATE, &bio->bi_flags); - printk(KERN_WARNING "MM%d: I/O error on sector %d/%d\n", - card->card_number, - le32_to_cpu(desc->local_addr)>>9, - le32_to_cpu(desc->transfer_size)); + dev_printk(KERN_WARNING, &card->dev->dev, + "I/O error on sector %d/%d\n", + le32_to_cpu(desc->local_addr)>>9, + le32_to_cpu(desc->transfer_size)); dump_dmastat(card, control); } else if (test_bit(BIO_RW, &bio->bi_rw) && le32_to_cpu(desc->local_addr)>>9 == card->init_size) { card->init_size += le32_to_cpu(desc->transfer_size)>>9; if (card->init_size>>1 >= card->mm_size) { - printk(KERN_INFO "MM%d: memory now initialised\n", - card->card_number); + dev_printk(KERN_INFO, &card->dev->dev, + "memory now initialised\n"); set_userbit(card, MEMORY_INITIALIZED, 1); } } @@ -532,7 +540,7 @@ static void process_page(unsigned long data) return_bio = bio->bi_next; bio->bi_next = NULL; - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); } } @@ -547,7 +555,6 @@ static int mm_make_request(struct request_queue *q, struct bio *bio) pr_debug("mm_make_request %llu %u\n", (unsigned long long)bio->bi_sector, bio->bi_size); - bio->bi_phys_segments = bio->bi_idx; /* count of completed segments*/ spin_lock_irq(&card->lock); *card->biotail = bio; bio->bi_next = NULL; @@ -585,7 +592,7 @@ HW_TRACE(0x30); else writeb((DMASCR_DMA_COMPLETE|DMASCR_CHAIN_COMPLETE) >> 16, card->csr_remap+ DMA_STATUS_CTRL + 2); - + /* log errors and clear interrupt status */ if (dma_status & DMASCR_ANY_ERR) { unsigned int data_log1, data_log2; @@ -606,46 +613,51 @@ HW_TRACE(0x30); dump_dmastat(card, dma_status); if (stat & 0x01) - printk(KERN_ERR "MM%d*: Memory access error detected (err count %d)\n", - card->card_number, count); + dev_printk(KERN_ERR, &card->dev->dev, + "Memory access error detected (err count %d)\n", + count); if (stat & 0x02) - printk(KERN_ERR "MM%d*: Multi-bit EDC error\n", - card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, + "Multi-bit EDC error\n"); - printk(KERN_ERR "MM%d*: Fault Address 0x%02x%08x, Fault Data 0x%08x%08x\n", - card->card_number, addr_log2, addr_log1, data_log2, data_log1); - printk(KERN_ERR "MM%d*: Fault Check 0x%02x, Fault Syndrome 0x%02x\n", - card->card_number, check, syndrome); + dev_printk(KERN_ERR, &card->dev->dev, + "Fault Address 0x%02x%08x, Fault Data 0x%08x%08x\n", + addr_log2, addr_log1, data_log2, data_log1); + dev_printk(KERN_ERR, &card->dev->dev, + "Fault Check 0x%02x, Fault Syndrome 0x%02x\n", + check, syndrome); writeb(0, card->csr_remap + ERROR_COUNT); } if (dma_status & DMASCR_PARITY_ERR_REP) { - printk(KERN_ERR "MM%d*: PARITY ERROR REPORTED\n", card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, + "PARITY ERROR REPORTED\n"); pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } if (dma_status & DMASCR_PARITY_ERR_DET) { - printk(KERN_ERR "MM%d*: PARITY ERROR DETECTED\n", card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, + "PARITY ERROR DETECTED\n"); pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } if (dma_status & DMASCR_SYSTEM_ERR_SIG) { - printk(KERN_ERR "MM%d*: SYSTEM ERROR\n", card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, "SYSTEM ERROR\n"); pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } if (dma_status & DMASCR_TARGET_ABT) { - printk(KERN_ERR "MM%d*: TARGET ABORT\n", card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, "TARGET ABORT\n"); pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } if (dma_status & DMASCR_MASTER_ABT) { - printk(KERN_ERR "MM%d*: MASTER ABORT\n", card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, "MASTER ABORT\n"); pci_read_config_word(card->dev, PCI_STATUS, &cfg_status); pci_write_config_word(card->dev, PCI_STATUS, cfg_status); } @@ -656,7 +668,7 @@ HW_TRACE(0x30); HW_TRACE(0x36); - return IRQ_HANDLED; + return IRQ_HANDLED; } /* ----------------------------------------------------------------------------------- @@ -696,20 +708,20 @@ static int check_battery(struct cardinfo *card, int battery, int status) card->battery[battery].last_change = jiffies; if (card->battery[battery].good) { - printk(KERN_ERR "MM%d: Battery %d now good\n", - card->card_number, battery + 1); + dev_printk(KERN_ERR, &card->dev->dev, + "Battery %d now good\n", battery + 1); card->battery[battery].warned = 0; } else - printk(KERN_ERR "MM%d: Battery %d now FAILED\n", - card->card_number, battery + 1); + dev_printk(KERN_ERR, &card->dev->dev, + "Battery %d now FAILED\n", battery + 1); return 1; } else if (!card->battery[battery].good && !card->battery[battery].warned && time_after_eq(jiffies, card->battery[battery].last_change + (HZ * 60 * 60 * 5))) { - printk(KERN_ERR "MM%d: Battery %d still FAILED after 5 hours\n", - card->card_number, battery + 1); + dev_printk(KERN_ERR, &card->dev->dev, + "Battery %d still FAILED after 5 hours\n", battery + 1); card->battery[battery].warned = 1; return 1; @@ -733,8 +745,8 @@ static void check_batteries(struct cardinfo *card) status = readb(card->csr_remap + MEMCTRLSTATUS_BATTERY); if (debug & DEBUG_BATTERY_POLLING) - printk(KERN_DEBUG "MM%d: checking battery status, 1 = %s, 2 = %s\n", - card->card_number, + dev_printk(KERN_DEBUG, &card->dev->dev, + "checking battery status, 1 = %s, 2 = %s\n", (status & BATTERY_1_FAILURE) ? "FAILURE" : "OK", (status & BATTERY_2_FAILURE) ? "FAILURE" : "OK"); @@ -749,7 +761,7 @@ static void check_all_batteries(unsigned long ptr) { int i; - for (i = 0; i < num_cards; i++) + for (i = 0; i < num_cards; i++) if (!(cards[i].flags & UM_FLAG_NO_BATT)) { struct cardinfo *card = &cards[i]; spin_lock_bh(&card->lock); @@ -853,45 +865,56 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i unsigned char mem_present; unsigned char batt_status; unsigned int saved_bar, data; + unsigned long csr_base; + unsigned long csr_len; int magic_number; + static int printed_version; - if (pci_enable_device(dev) < 0) - return -ENODEV; + if (!printed_version++) + printk(KERN_INFO DRIVER_VERSION " : " DRIVER_DESC "\n"); + + ret = pci_enable_device(dev); + if (ret) + return ret; pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF8); pci_set_master(dev); card->dev = dev; - card->card_number = num_cards; - card->csr_base = pci_resource_start(dev, 0); - card->csr_len = pci_resource_len(dev, 0); + csr_base = pci_resource_start(dev, 0); + csr_len = pci_resource_len(dev, 0); + if (!csr_base || !csr_len) + return -ENODEV; - printk(KERN_INFO "Micro Memory(tm) controller #%d found at %02x:%02x (PCI Mem Module (Battery Backup))\n", - card->card_number, dev->bus->number, dev->devfn); + dev_printk(KERN_INFO, &dev->dev, + "Micro Memory(tm) controller found (PCI Mem Module (Battery Backup))\n"); if (pci_set_dma_mask(dev, DMA_64BIT_MASK) && pci_set_dma_mask(dev, DMA_32BIT_MASK)) { - printk(KERN_WARNING "MM%d: NO suitable DMA found\n",num_cards); + dev_printk(KERN_WARNING, &dev->dev, "NO suitable DMA found\n"); return -ENOMEM; } - if (!request_mem_region(card->csr_base, card->csr_len, "Micro Memory")) { - printk(KERN_ERR "MM%d: Unable to request memory region\n", card->card_number); - ret = -ENOMEM; + ret = pci_request_regions(dev, DRIVER_NAME); + if (ret) { + dev_printk(KERN_ERR, &card->dev->dev, + "Unable to request memory region\n"); goto failed_req_csr; } - card->csr_remap = ioremap_nocache(card->csr_base, card->csr_len); + card->csr_remap = ioremap_nocache(csr_base, csr_len); if (!card->csr_remap) { - printk(KERN_ERR "MM%d: Unable to remap memory region\n", card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, + "Unable to remap memory region\n"); ret = -ENOMEM; goto failed_remap_csr; } - printk(KERN_INFO "MM%d: CSR 0x%08lx -> 0x%p (0x%lx)\n", card->card_number, - card->csr_base, card->csr_remap, card->csr_len); + dev_printk(KERN_INFO, &card->dev->dev, + "CSR 0x%08lx -> 0x%p (0x%lx)\n", + csr_base, card->csr_remap, csr_len); switch(card->dev->device) { case 0x5415: @@ -915,7 +938,7 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i } if (readb(card->csr_remap + MEMCTRLSTATUS_MAGIC) != magic_number) { - printk(KERN_ERR "MM%d: Magic number invalid\n", card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, "Magic number invalid\n"); ret = -ENOMEM; goto failed_magic; } @@ -928,7 +951,7 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i &card->mm_pages[1].page_dma); if (card->mm_pages[0].desc == NULL || card->mm_pages[1].desc == NULL) { - printk(KERN_ERR "MM%d: alloc failed\n", card->card_number); + dev_printk(KERN_ERR, &card->dev->dev, "alloc failed\n"); goto failed_alloc; } reset_page(&card->mm_pages[0]); @@ -949,7 +972,7 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i tasklet_init(&card->tasklet, process_page, (unsigned long)card); card->check_batteries = 0; - + mem_present = readb(card->csr_remap + MEMCTRLSTATUS_MEMORY); switch (mem_present) { case MEM_128_MB: @@ -982,12 +1005,13 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i card->battery[1].good = !(batt_status & BATTERY_2_FAILURE); card->battery[0].last_change = card->battery[1].last_change = jiffies; - if (card->flags & UM_FLAG_NO_BATT) - printk(KERN_INFO "MM%d: Size %d KB\n", - card->card_number, card->mm_size); + if (card->flags & UM_FLAG_NO_BATT) + dev_printk(KERN_INFO, &card->dev->dev, + "Size %d KB\n", card->mm_size); else { - printk(KERN_INFO "MM%d: Size %d KB, Battery 1 %s (%s), Battery 2 %s (%s)\n", - card->card_number, card->mm_size, + dev_printk(KERN_INFO, &card->dev->dev, + "Size %d KB, Battery 1 %s (%s), Battery 2 %s (%s)\n", + card->mm_size, (batt_status & BATTERY_1_DISABLED ? "Disabled" : "Enabled"), card->battery[0].good ? "OK" : "FAILURE", (batt_status & BATTERY_2_DISABLED ? "Disabled" : "Enabled"), @@ -1005,19 +1029,16 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i data = ~data; data += 1; - card->win_size = data; - - - if (request_irq(dev->irq, mm_interrupt, IRQF_SHARED, "pci-umem", card)) { - printk(KERN_ERR "MM%d: Unable to allocate IRQ\n", card->card_number); + if (request_irq(dev->irq, mm_interrupt, IRQF_SHARED, DRIVER_NAME, card)) { + dev_printk(KERN_ERR, &card->dev->dev, + "Unable to allocate IRQ\n"); ret = -ENODEV; goto failed_req_irq; } - card->irq = dev->irq; - printk(KERN_INFO "MM%d: Window size %d bytes, IRQ %d\n", card->card_number, - card->win_size, card->irq); + dev_printk(KERN_INFO, &card->dev->dev, + "Window size %d bytes, IRQ %d\n", data, dev->irq); spin_lock_init(&card->lock); @@ -1037,10 +1058,12 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i num_cards++; if (!get_userbit(card, MEMORY_INITIALIZED)) { - printk(KERN_INFO "MM%d: memory NOT initialized. Consider over-writing whole device.\n", card->card_number); + dev_printk(KERN_INFO, &card->dev->dev, + "memory NOT initialized. Consider over-writing whole device.\n"); card->init_size = 0; } else { - printk(KERN_INFO "MM%d: memory already initialized\n", card->card_number); + dev_printk(KERN_INFO, &card->dev->dev, + "memory already initialized\n"); card->init_size = card->mm_size; } @@ -1062,7 +1085,7 @@ static int __devinit mm_pci_probe(struct pci_dev *dev, const struct pci_device_i failed_magic: iounmap(card->csr_remap); failed_remap_csr: - release_mem_region(card->csr_base, card->csr_len); + pci_release_regions(dev); failed_req_csr: return ret; @@ -1077,9 +1100,8 @@ static void mm_pci_remove(struct pci_dev *dev) struct cardinfo *card = pci_get_drvdata(dev); tasklet_kill(&card->tasklet); + free_irq(dev->irq, card); iounmap(card->csr_remap); - release_mem_region(card->csr_base, card->csr_len); - free_irq(card->irq, card); if (card->mm_pages[0].desc) pci_free_consistent(card->dev, PAGE_SIZE*2, @@ -1090,6 +1112,9 @@ static void mm_pci_remove(struct pci_dev *dev) card->mm_pages[1].desc, card->mm_pages[1].page_dma); blk_cleanup_queue(card->queue); + + pci_release_regions(dev); + pci_disable_device(dev); } static const struct pci_device_id mm_pci_ids[] = { @@ -1109,11 +1134,12 @@ static const struct pci_device_id mm_pci_ids[] = { MODULE_DEVICE_TABLE(pci, mm_pci_ids); static struct pci_driver mm_pci_driver = { - .name = "umem", - .id_table = mm_pci_ids, - .probe = mm_pci_probe, - .remove = mm_pci_remove, + .name = DRIVER_NAME, + .id_table = mm_pci_ids, + .probe = mm_pci_probe, + .remove = mm_pci_remove, }; + /* ----------------------------------------------------------------------------------- -- mm_init @@ -1125,13 +1151,11 @@ static int __init mm_init(void) int retval, i; int err; - printk(KERN_INFO DRIVER_VERSION " : " DRIVER_DESC "\n"); - retval = pci_register_driver(&mm_pci_driver); if (retval) return -ENOMEM; - err = major_nr = register_blkdev(0, "umem"); + err = major_nr = register_blkdev(0, DRIVER_NAME); if (err < 0) { pci_unregister_driver(&mm_pci_driver); return -EIO; @@ -1157,13 +1181,13 @@ static int __init mm_init(void) } init_battery_timer(); - printk("MM: desc_per_page = %ld\n", DESC_PER_PAGE); + printk(KERN_INFO "MM: desc_per_page = %ld\n", DESC_PER_PAGE); /* printk("mm_init: Done. 10-19-01 9:00\n"); */ return 0; out: pci_unregister_driver(&mm_pci_driver); - unregister_blkdev(major_nr, "umem"); + unregister_blkdev(major_nr, DRIVER_NAME); while (i--) put_disk(mm_gendisk[i]); return -ENOMEM; @@ -1186,7 +1210,7 @@ static void __exit mm_cleanup(void) pci_unregister_driver(&mm_pci_driver); - unregister_blkdev(major_nr, "umem"); + unregister_blkdev(major_nr, DRIVER_NAME); } module_init(mm_init); diff --git a/include/linux/umem.h b/drivers/block/umem.h index f36ebfc32bf6..375c68974c9a 100644 --- a/include/linux/umem.h +++ b/drivers/block/umem.h @@ -87,13 +87,13 @@ #define DMASCR_DMA_COMPLETE 0x40000 #define DMASCR_CHAIN_COMPLETE 0x80000 -/* -3.SOME PCs HAVE HOST BRIDGES WHICH APPARENTLY DO NOT CORRECTLY HANDLE -READ-LINE (0xE) OR READ-MULTIPLE (0xC) PCI COMMAND CODES DURING DMA -TRANSFERS. IN OTHER SYSTEMS THESE COMMAND CODES WILL CAUSE THE HOST BRIDGE -TO ALLOW LONGER BURSTS DURING DMA READ OPERATIONS. THE UPPER FOUR BITS -(31..28) OF THE DMA CSR HAVE BEEN MADE PROGRAMMABLE, SO THAT EITHER A 0x6, -AN 0xE OR A 0xC CAN BE WRITTEN TO THEM TO SET THE COMMAND CODE USED DURING +/* +3.SOME PCs HAVE HOST BRIDGES WHICH APPARENTLY DO NOT CORRECTLY HANDLE +READ-LINE (0xE) OR READ-MULTIPLE (0xC) PCI COMMAND CODES DURING DMA +TRANSFERS. IN OTHER SYSTEMS THESE COMMAND CODES WILL CAUSE THE HOST BRIDGE +TO ALLOW LONGER BURSTS DURING DMA READ OPERATIONS. THE UPPER FOUR BITS +(31..28) OF THE DMA CSR HAVE BEEN MADE PROGRAMMABLE, SO THAT EITHER A 0x6, +AN 0xE OR A 0xC CAN BE WRITTEN TO THEM TO SET THE COMMAND CODE USED DURING DMA READ OPERATIONS. */ #define DMASCR_READ 0x60000000 @@ -125,11 +125,6 @@ struct mm_dma_desc { __le64 sem_control_bits; } __attribute__((aligned(8))); -#define PCI_VENDOR_ID_MICRO_MEMORY 0x1332 -#define PCI_DEVICE_ID_MICRO_MEMORY_5415CN 0x5415 -#define PCI_DEVICE_ID_MICRO_MEMORY_5425CN 0x5425 -#define PCI_DEVICE_ID_MICRO_MEMORY_6155 0x6155 - /* bits for card->flags */ #define UM_FLAG_DMA_IN_REGS 1 #define UM_FLAG_NO_BYTE_STATUS 2 diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 964e51634f2d..2bdebcb3ff16 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -150,9 +150,8 @@ static int blkif_queue_request(struct request *req) struct blkfront_info *info = req->rq_disk->private_data; unsigned long buffer_mfn; struct blkif_request *ring_req; - struct bio *bio; + struct req_iterator iter; struct bio_vec *bvec; - int idx; unsigned long id; unsigned int fsect, lsect; int ref; @@ -186,34 +185,31 @@ static int blkif_queue_request(struct request *req) ring_req->operation = BLKIF_OP_WRITE_BARRIER; ring_req->nr_segments = 0; - rq_for_each_bio (bio, req) { - bio_for_each_segment (bvec, bio, idx) { - BUG_ON(ring_req->nr_segments - == BLKIF_MAX_SEGMENTS_PER_REQUEST); - buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page)); - fsect = bvec->bv_offset >> 9; - lsect = fsect + (bvec->bv_len >> 9) - 1; - /* install a grant reference. */ - ref = gnttab_claim_grant_reference(&gref_head); - BUG_ON(ref == -ENOSPC); - - gnttab_grant_foreign_access_ref( + rq_for_each_segment(bvec, req, iter) { + BUG_ON(ring_req->nr_segments == BLKIF_MAX_SEGMENTS_PER_REQUEST); + buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page)); + fsect = bvec->bv_offset >> 9; + lsect = fsect + (bvec->bv_len >> 9) - 1; + /* install a grant reference. */ + ref = gnttab_claim_grant_reference(&gref_head); + BUG_ON(ref == -ENOSPC); + + gnttab_grant_foreign_access_ref( ref, info->xbdev->otherend_id, buffer_mfn, rq_data_dir(req) ); - info->shadow[id].frame[ring_req->nr_segments] = + info->shadow[id].frame[ring_req->nr_segments] = mfn_to_pfn(buffer_mfn); - ring_req->seg[ring_req->nr_segments] = + ring_req->seg[ring_req->nr_segments] = (struct blkif_request_segment) { .gref = ref, .first_sect = fsect, .last_sect = lsect }; - ring_req->nr_segments++; - } + ring_req->nr_segments++; } info->ring.req_prod_pvt++; diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c index 3ede0b63da13..9e7652dcde6c 100644 --- a/drivers/block/xsysace.c +++ b/drivers/block/xsysace.c @@ -91,6 +91,10 @@ #include <linux/blkdev.h> #include <linux/hdreg.h> #include <linux/platform_device.h> +#if defined(CONFIG_OF) +#include <linux/of_device.h> +#include <linux/of_platform.h> +#endif MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>"); MODULE_DESCRIPTION("Xilinx SystemACE device driver"); @@ -158,6 +162,9 @@ MODULE_LICENSE("GPL"); #define ACE_FIFO_SIZE (32) #define ACE_BUF_PER_SECTOR (ACE_SECTOR_SIZE / ACE_FIFO_SIZE) +#define ACE_BUS_WIDTH_8 0 +#define ACE_BUS_WIDTH_16 1 + struct ace_reg_ops; struct ace_device { @@ -188,7 +195,7 @@ struct ace_device { /* Details of hardware device */ unsigned long physaddr; - void *baseaddr; + void __iomem *baseaddr; int irq; int bus_width; /* 0 := 8 bit; 1 := 16 bit */ struct ace_reg_ops *reg_ops; @@ -220,20 +227,20 @@ struct ace_reg_ops { /* 8 Bit bus width */ static u16 ace_in_8(struct ace_device *ace, int reg) { - void *r = ace->baseaddr + reg; + void __iomem *r = ace->baseaddr + reg; return in_8(r) | (in_8(r + 1) << 8); } static void ace_out_8(struct ace_device *ace, int reg, u16 val) { - void *r = ace->baseaddr + reg; + void __iomem *r = ace->baseaddr + reg; out_8(r, val); out_8(r + 1, val >> 8); } static void ace_datain_8(struct ace_device *ace) { - void *r = ace->baseaddr + 0x40; + void __iomem *r = ace->baseaddr + 0x40; u8 *dst = ace->data_ptr; int i = ACE_FIFO_SIZE; while (i--) @@ -243,7 +250,7 @@ static void ace_datain_8(struct ace_device *ace) static void ace_dataout_8(struct ace_device *ace) { - void *r = ace->baseaddr + 0x40; + void __iomem *r = ace->baseaddr + 0x40; u8 *src = ace->data_ptr; int i = ACE_FIFO_SIZE; while (i--) @@ -931,9 +938,11 @@ static int __devinit ace_setup(struct ace_device *ace) { u16 version; u16 val; - int rc; + dev_dbg(ace->dev, "ace_setup(ace=0x%p)\n", ace); + dev_dbg(ace->dev, "physaddr=0x%lx irq=%i\n", ace->physaddr, ace->irq); + spin_lock_init(&ace->lock); init_completion(&ace->id_completion); @@ -944,15 +953,6 @@ static int __devinit ace_setup(struct ace_device *ace) if (!ace->baseaddr) goto err_ioremap; - if (ace->irq != NO_IRQ) { - rc = request_irq(ace->irq, ace_interrupt, 0, "systemace", ace); - if (rc) { - /* Failure - fall back to polled mode */ - dev_err(ace->dev, "request_irq failed\n"); - ace->irq = NO_IRQ; - } - } - /* * Initialize the state machine tasklet and stall timer */ @@ -982,7 +982,7 @@ static int __devinit ace_setup(struct ace_device *ace) snprintf(ace->gd->disk_name, 32, "xs%c", ace->id + 'a'); /* set bus width */ - if (ace->bus_width == 1) { + if (ace->bus_width == ACE_BUS_WIDTH_16) { /* 0x0101 should work regardless of endianess */ ace_out_le16(ace, ACE_BUSMODE, 0x0101); @@ -1005,6 +1005,16 @@ static int __devinit ace_setup(struct ace_device *ace) ace_out(ace, ACE_CTRL, ACE_CTRL_FORCECFGMODE | ACE_CTRL_DATABUFRDYIRQ | ACE_CTRL_ERRORIRQ); + /* Now we can hook up the irq handler */ + if (ace->irq != NO_IRQ) { + rc = request_irq(ace->irq, ace_interrupt, 0, "systemace", ace); + if (rc) { + /* Failure - fall back to polled mode */ + dev_err(ace->dev, "request_irq failed\n"); + ace->irq = NO_IRQ; + } + } + /* Enable interrupts */ val = ace_in(ace, ACE_CTRL); val |= ACE_CTRL_DATABUFRDYIRQ | ACE_CTRL_ERRORIRQ; @@ -1024,16 +1034,14 @@ static int __devinit ace_setup(struct ace_device *ace) return 0; - err_read: +err_read: put_disk(ace->gd); - err_alloc_disk: +err_alloc_disk: blk_cleanup_queue(ace->queue); - err_blk_initq: +err_blk_initq: iounmap(ace->baseaddr); - if (ace->irq != NO_IRQ) - free_irq(ace->irq, ace); - err_ioremap: - printk(KERN_INFO "xsysace: error initializing device at 0x%lx\n", +err_ioremap: + dev_info(ace->dev, "xsysace: error initializing device at 0x%lx\n", ace->physaddr); return -ENOMEM; } @@ -1056,98 +1064,222 @@ static void __devexit ace_teardown(struct ace_device *ace) iounmap(ace->baseaddr); } -/* --------------------------------------------------------------------- - * Platform Bus Support - */ - -static int __devinit ace_probe(struct device *device) +static int __devinit +ace_alloc(struct device *dev, int id, unsigned long physaddr, + int irq, int bus_width) { - struct platform_device *dev = to_platform_device(device); struct ace_device *ace; - int i; + int rc; + dev_dbg(dev, "ace_alloc(%p)\n", dev); - dev_dbg(device, "ace_probe(%p)\n", device); + if (!physaddr) { + rc = -ENODEV; + goto err_noreg; + } - /* - * Allocate the ace device structure - */ + /* Allocate and initialize the ace device structure */ ace = kzalloc(sizeof(struct ace_device), GFP_KERNEL); - if (!ace) + if (!ace) { + rc = -ENOMEM; goto err_alloc; - - ace->dev = device; - ace->id = dev->id; - ace->irq = NO_IRQ; - - for (i = 0; i < dev->num_resources; i++) { - if (dev->resource[i].flags & IORESOURCE_MEM) - ace->physaddr = dev->resource[i].start; - if (dev->resource[i].flags & IORESOURCE_IRQ) - ace->irq = dev->resource[i].start; } - /* FIXME: Should get bus_width from the platform_device struct */ - ace->bus_width = 1; - - dev_set_drvdata(&dev->dev, ace); + ace->dev = dev; + ace->id = id; + ace->physaddr = physaddr; + ace->irq = irq; + ace->bus_width = bus_width; - /* Call the bus-independant setup code */ - if (ace_setup(ace) != 0) + /* Call the setup code */ + rc = ace_setup(ace); + if (rc) goto err_setup; + dev_set_drvdata(dev, ace); return 0; - err_setup: - dev_set_drvdata(&dev->dev, NULL); +err_setup: + dev_set_drvdata(dev, NULL); kfree(ace); - err_alloc: - printk(KERN_ERR "xsysace: could not initialize device\n"); - return -ENOMEM; +err_alloc: +err_noreg: + dev_err(dev, "could not initialize device, err=%i\n", rc); + return rc; } -/* - * Platform bus remove() method - */ -static int __devexit ace_remove(struct device *device) +static void __devexit ace_free(struct device *dev) { - struct ace_device *ace = dev_get_drvdata(device); - - dev_dbg(device, "ace_remove(%p)\n", device); + struct ace_device *ace = dev_get_drvdata(dev); + dev_dbg(dev, "ace_free(%p)\n", dev); if (ace) { ace_teardown(ace); + dev_set_drvdata(dev, NULL); kfree(ace); } +} + +/* --------------------------------------------------------------------- + * Platform Bus Support + */ + +static int __devinit ace_probe(struct platform_device *dev) +{ + unsigned long physaddr = 0; + int bus_width = ACE_BUS_WIDTH_16; /* FIXME: should not be hard coded */ + int id = dev->id; + int irq = NO_IRQ; + int i; + dev_dbg(&dev->dev, "ace_probe(%p)\n", dev); + + for (i = 0; i < dev->num_resources; i++) { + if (dev->resource[i].flags & IORESOURCE_MEM) + physaddr = dev->resource[i].start; + if (dev->resource[i].flags & IORESOURCE_IRQ) + irq = dev->resource[i].start; + } + + /* Call the bus-independant setup code */ + return ace_alloc(&dev->dev, id, physaddr, irq, bus_width); +} + +/* + * Platform bus remove() method + */ +static int __devexit ace_remove(struct platform_device *dev) +{ + ace_free(&dev->dev); return 0; } -static struct device_driver ace_driver = { - .name = "xsysace", - .bus = &platform_bus_type, +static struct platform_driver ace_platform_driver = { .probe = ace_probe, .remove = __devexit_p(ace_remove), + .driver = { + .owner = THIS_MODULE, + .name = "xsysace", + }, +}; + +/* --------------------------------------------------------------------- + * OF_Platform Bus Support + */ + +#if defined(CONFIG_OF) +static int __devinit +ace_of_probe(struct of_device *op, const struct of_device_id *match) +{ + struct resource res; + unsigned long physaddr; + const u32 *id; + int irq, bus_width, rc; + + dev_dbg(&op->dev, "ace_of_probe(%p, %p)\n", op, match); + + /* device id */ + id = of_get_property(op->node, "port-number", NULL); + + /* physaddr */ + rc = of_address_to_resource(op->node, 0, &res); + if (rc) { + dev_err(&op->dev, "invalid address\n"); + return rc; + } + physaddr = res.start; + + /* irq */ + irq = irq_of_parse_and_map(op->node, 0); + + /* bus width */ + bus_width = ACE_BUS_WIDTH_16; + if (of_find_property(op->node, "8-bit", NULL)) + bus_width = ACE_BUS_WIDTH_8; + + /* Call the bus-independant setup code */ + return ace_alloc(&op->dev, id ? *id : 0, physaddr, irq, bus_width); +} + +static int __devexit ace_of_remove(struct of_device *op) +{ + ace_free(&op->dev); + return 0; +} + +/* Match table for of_platform binding */ +static struct of_device_id __devinit ace_of_match[] = { + { .compatible = "xilinx,xsysace", }, + {}, +}; +MODULE_DEVICE_TABLE(of, ace_of_match); + +static struct of_platform_driver ace_of_driver = { + .owner = THIS_MODULE, + .name = "xsysace", + .match_table = ace_of_match, + .probe = ace_of_probe, + .remove = __devexit_p(ace_of_remove), + .driver = { + .name = "xsysace", + }, }; +/* Registration helpers to keep the number of #ifdefs to a minimum */ +static inline int __init ace_of_register(void) +{ + pr_debug("xsysace: registering OF binding\n"); + return of_register_platform_driver(&ace_of_driver); +} + +static inline void __exit ace_of_unregister(void) +{ + of_unregister_platform_driver(&ace_of_driver); +} +#else /* CONFIG_OF */ +/* CONFIG_OF not enabled; do nothing helpers */ +static inline int __init ace_of_register(void) { return 0; } +static inline void __exit ace_of_unregister(void) { } +#endif /* CONFIG_OF */ + /* --------------------------------------------------------------------- * Module init/exit routines */ static int __init ace_init(void) { + int rc; + ace_major = register_blkdev(ace_major, "xsysace"); if (ace_major <= 0) { - printk(KERN_WARNING "xsysace: register_blkdev() failed\n"); - return ace_major; + rc = -ENOMEM; + goto err_blk; } - pr_debug("Registering Xilinx SystemACE driver, major=%i\n", ace_major); - return driver_register(&ace_driver); + rc = ace_of_register(); + if (rc) + goto err_of; + + pr_debug("xsysace: registering platform binding\n"); + rc = platform_driver_register(&ace_platform_driver); + if (rc) + goto err_plat; + + pr_info("Xilinx SystemACE device driver, major=%i\n", ace_major); + return 0; + +err_plat: + ace_of_unregister(); +err_of: + unregister_blkdev(ace_major, "xsysace"); +err_blk: + printk(KERN_ERR "xsysace: registration failed; err=%i\n", rc); + return rc; } static void __exit ace_exit(void) { pr_debug("Unregistering Xilinx SystemACE driver\n"); - driver_unregister(&ace_driver); + platform_driver_unregister(&ace_platform_driver); + ace_of_unregister(); unregister_blkdev(ace_major, "xsysace"); } diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index ae8e1a64b8ad..04a357808f2e 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -606,26 +606,24 @@ static void idefloppy_input_buffers (ide_drive_t *drive, idefloppy_pc_t *pc, uns { struct request *rq = pc->rq; struct bio_vec *bvec; - struct bio *bio; + struct req_iterator iter; unsigned long flags; char *data; - int count, i, done = 0; + int count, done = 0; - rq_for_each_bio(bio, rq) { - bio_for_each_segment(bvec, bio, i) { - if (!bcount) - break; + rq_for_each_segment(bvec, rq, iter) { + if (!bcount) + break; - count = min(bvec->bv_len, bcount); + count = min(bvec->bv_len, bcount); - data = bvec_kmap_irq(bvec, &flags); - drive->hwif->atapi_input_bytes(drive, data, count); - bvec_kunmap_irq(data, &flags); + data = bvec_kmap_irq(bvec, &flags); + drive->hwif->atapi_input_bytes(drive, data, count); + bvec_kunmap_irq(data, &flags); - bcount -= count; - pc->b_count += count; - done += count; - } + bcount -= count; + pc->b_count += count; + done += count; } idefloppy_do_end_request(drive, 1, done >> 9); @@ -639,27 +637,25 @@ static void idefloppy_input_buffers (ide_drive_t *drive, idefloppy_pc_t *pc, uns static void idefloppy_output_buffers (ide_drive_t *drive, idefloppy_pc_t *pc, unsigned int bcount) { struct request *rq = pc->rq; - struct bio *bio; + struct req_iterator iter; struct bio_vec *bvec; unsigned long flags; - int count, i, done = 0; + int count, done = 0; char *data; - rq_for_each_bio(bio, rq) { - bio_for_each_segment(bvec, bio, i) { - if (!bcount) - break; + rq_for_each_segment(bvec, rq, iter) { + if (!bcount) + break; - count = min(bvec->bv_len, bcount); + count = min(bvec->bv_len, bcount); - data = bvec_kmap_irq(bvec, &flags); - drive->hwif->atapi_output_bytes(drive, data, count); - bvec_kunmap_irq(data, &flags); + data = bvec_kmap_irq(bvec, &flags); + drive->hwif->atapi_output_bytes(drive, data, count); + bvec_kunmap_irq(data, &flags); - bcount -= count; - pc->b_count += count; - done += count; - } + bcount -= count; + pc->b_count += count; + done += count; } idefloppy_do_end_request(drive, 1, done >> 9); diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index bdc52d6922b7..8216a6f75be5 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -489,7 +489,7 @@ static void dec_pending(struct dm_crypt_io *io, int error) if (!atomic_dec_and_test(&io->pending)) return; - bio_endio(io->base_bio, io->base_bio->bi_size, io->error); + bio_endio(io->base_bio, io->error); mempool_free(io, cc->io_pool); } @@ -509,25 +509,19 @@ static void kcryptd_queue_io(struct dm_crypt_io *io) queue_work(_kcryptd_workqueue, &io->work); } -static int crypt_endio(struct bio *clone, unsigned int done, int error) +static void crypt_endio(struct bio *clone, int error) { struct dm_crypt_io *io = clone->bi_private; struct crypt_config *cc = io->target->private; unsigned read_io = bio_data_dir(clone) == READ; /* - * free the processed pages, even if - * it's only a partially completed write + * free the processed pages */ - if (!read_io) - crypt_free_buffer_pages(cc, clone, done); - - /* keep going - not finished yet */ - if (unlikely(clone->bi_size)) - return 1; - - if (!read_io) + if (!read_io) { + crypt_free_buffer_pages(cc, clone, clone->bi_size); goto out; + } if (unlikely(!bio_flagged(clone, BIO_UPTODATE))) { error = -EIO; @@ -537,12 +531,11 @@ static int crypt_endio(struct bio *clone, unsigned int done, int error) bio_put(clone); io->post_process = 1; kcryptd_queue_io(io); - return 0; + return; out: bio_put(clone); dec_pending(io, error); - return error; } static void clone_init(struct dm_crypt_io *io, struct bio *clone) diff --git a/drivers/md/dm-emc.c b/drivers/md/dm-emc.c index 265c467854da..a2191a4fcf77 100644 --- a/drivers/md/dm-emc.c +++ b/drivers/md/dm-emc.c @@ -38,13 +38,10 @@ static inline void free_bio(struct bio *bio) bio_put(bio); } -static int emc_endio(struct bio *bio, unsigned int bytes_done, int error) +static void emc_endio(struct bio *bio, int error) { struct dm_path *path = bio->bi_private; - if (bio->bi_size) - return 1; - /* We also need to look at the sense keys here whether or not to * switch to the next PG etc. * @@ -109,15 +106,7 @@ static struct request *get_failover_req(struct emc_handler *h, return NULL; } - rq->bio = rq->biotail = bio; - blk_rq_bio_prep(q, rq, bio); - - rq->rq_disk = bdev->bd_contains->bd_disk; - - /* bio backed don't set data */ - rq->buffer = rq->data = NULL; - /* rq data_len used for pc cmd's request_bufflen */ - rq->data_len = bio->bi_size; + blk_rq_append_bio(q, rq, bio); rq->sense = h->sense; memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE); diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index f3a772486437..b8e342fe7586 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -124,15 +124,11 @@ static void dec_count(struct io *io, unsigned int region, int error) } } -static int endio(struct bio *bio, unsigned int done, int error) +static void endio(struct bio *bio, int error) { struct io *io; unsigned region; - /* keep going until we've finished */ - if (bio->bi_size) - return 1; - if (error && bio_data_dir(bio) == READ) zero_fill_bio(bio); @@ -146,8 +142,6 @@ static int endio(struct bio *bio, unsigned int done, int error) bio_put(bio); dec_count(io, region, error); - - return 0; } /*----------------------------------------------------------------- diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index d6ca9d0a6fd1..31056abca89d 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -390,11 +390,11 @@ static void dispatch_queued_ios(struct multipath *m) r = map_io(m, bio, mpio, 1); if (r < 0) - bio_endio(bio, bio->bi_size, r); + bio_endio(bio, r); else if (r == DM_MAPIO_REMAPPED) generic_make_request(bio); else if (r == DM_MAPIO_REQUEUE) - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); bio = next; } diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c index 144071e70a93..d09ff15490a5 100644 --- a/drivers/md/dm-raid1.c +++ b/drivers/md/dm-raid1.c @@ -820,7 +820,7 @@ static void write_callback(unsigned long error, void *context) break; } } - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); } static void do_write(struct mirror_set *ms, struct bio *bio) @@ -900,7 +900,7 @@ static void do_writes(struct mirror_set *ms, struct bio_list *writes) */ if (unlikely(ms->log_failure)) while ((bio = bio_list_pop(&sync))) - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); else while ((bio = bio_list_pop(&sync))) do_write(ms, bio); diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 83ddbfe6b8a4..98a633f3d6b0 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -636,7 +636,7 @@ static void error_bios(struct bio *bio) while (bio) { n = bio->bi_next; bio->bi_next = NULL; - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); bio = n; } } diff --git a/drivers/md/dm-zero.c b/drivers/md/dm-zero.c index f314d7dc9c26..bdec206c404b 100644 --- a/drivers/md/dm-zero.c +++ b/drivers/md/dm-zero.c @@ -43,7 +43,7 @@ static int zero_map(struct dm_target *ti, struct bio *bio, break; } - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); /* accepted bio, don't make new request */ return DM_MAPIO_SUBMITTED; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 2120155929a6..167765c47747 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -484,23 +484,20 @@ static void dec_pending(struct dm_io *io, int error) blk_add_trace_bio(io->md->queue, io->bio, BLK_TA_COMPLETE); - bio_endio(io->bio, io->bio->bi_size, io->error); + bio_endio(io->bio, io->error); } free_io(io->md, io); } } -static int clone_endio(struct bio *bio, unsigned int done, int error) +static void clone_endio(struct bio *bio, int error) { int r = 0; struct dm_target_io *tio = bio->bi_private; struct mapped_device *md = tio->io->md; dm_endio_fn endio = tio->ti->type->end_io; - if (bio->bi_size) - return 1; - if (!bio_flagged(bio, BIO_UPTODATE) && !error) error = -EIO; @@ -514,7 +511,7 @@ static int clone_endio(struct bio *bio, unsigned int done, int error) error = r; else if (r == DM_ENDIO_INCOMPLETE) /* The target will handle the io */ - return 1; + return; else if (r) { DMWARN("unimplemented target endio return value: %d", r); BUG(); @@ -530,7 +527,6 @@ static int clone_endio(struct bio *bio, unsigned int done, int error) bio_put(bio); free_tio(md, tio); - return r; } static sector_t max_io_len(struct mapped_device *md, @@ -761,7 +757,7 @@ static void __split_bio(struct mapped_device *md, struct bio *bio) ci.map = dm_get_table(md); if (!ci.map) { - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return; } @@ -803,7 +799,7 @@ static int dm_request(struct request_queue *q, struct bio *bio) * guarantee it is (or can be) handled by the targets correctly. */ if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -820,13 +816,13 @@ static int dm_request(struct request_queue *q, struct bio *bio) up_read(&md->io_lock); if (bio_rw(bio) == READA) { - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } r = queue_io(md, bio); if (r < 0) { - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } else if (r == 0) diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index cb059cf14c2e..cf2ddce34118 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -65,18 +65,16 @@ #include <linux/raid/md.h> -static int faulty_fail(struct bio *bio, unsigned int bytes_done, int error) +static void faulty_fail(struct bio *bio, int error) { struct bio *b = bio->bi_private; b->bi_size = bio->bi_size; b->bi_sector = bio->bi_sector; - if (bio->bi_size == 0) - bio_put(bio); + bio_put(bio); - clear_bit(BIO_UPTODATE, &b->bi_flags); - return (b->bi_end_io)(b, bytes_done, -EIO); + bio_io_error(b); } typedef struct faulty_conf { @@ -179,7 +177,7 @@ static int make_request(struct request_queue *q, struct bio *bio) /* special case - don't decrement, don't generic_make_request, * just fail immediately */ - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); return 0; } diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 17f795c3e0ab..550148770bb2 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -338,7 +338,7 @@ static int linear_make_request (struct request_queue *q, struct bio *bio) sector_t block; if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -358,7 +358,7 @@ static int linear_make_request (struct request_queue *q, struct bio *bio) bdevname(tmp_dev->rdev->bdev, b), (unsigned long long)tmp_dev->size, (unsigned long long)tmp_dev->offset); - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } if (unlikely(bio->bi_sector + (bio->bi_size >> 9) > diff --git a/drivers/md/md.c b/drivers/md/md.c index f883b7e37f3d..e8f102ea9b03 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -213,7 +213,7 @@ static DEFINE_SPINLOCK(all_mddevs_lock); static int md_fail_request (struct request_queue *q, struct bio *bio) { - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } @@ -384,12 +384,10 @@ static void free_disk_sb(mdk_rdev_t * rdev) } -static int super_written(struct bio *bio, unsigned int bytes_done, int error) +static void super_written(struct bio *bio, int error) { mdk_rdev_t *rdev = bio->bi_private; mddev_t *mddev = rdev->mddev; - if (bio->bi_size) - return 1; if (error || !test_bit(BIO_UPTODATE, &bio->bi_flags)) { printk("md: super_written gets error=%d, uptodate=%d\n", @@ -401,16 +399,13 @@ static int super_written(struct bio *bio, unsigned int bytes_done, int error) if (atomic_dec_and_test(&mddev->pending_writes)) wake_up(&mddev->sb_wait); bio_put(bio); - return 0; } -static int super_written_barrier(struct bio *bio, unsigned int bytes_done, int error) +static void super_written_barrier(struct bio *bio, int error) { struct bio *bio2 = bio->bi_private; mdk_rdev_t *rdev = bio2->bi_private; mddev_t *mddev = rdev->mddev; - if (bio->bi_size) - return 1; if (!test_bit(BIO_UPTODATE, &bio->bi_flags) && error == -EOPNOTSUPP) { @@ -424,11 +419,11 @@ static int super_written_barrier(struct bio *bio, unsigned int bytes_done, int e spin_unlock_irqrestore(&mddev->write_lock, flags); wake_up(&mddev->sb_wait); bio_put(bio); - return 0; + } else { + bio_put(bio2); + bio->bi_private = rdev; + super_written(bio, error); } - bio_put(bio2); - bio->bi_private = rdev; - return super_written(bio, bytes_done, error); } void md_super_write(mddev_t *mddev, mdk_rdev_t *rdev, @@ -489,13 +484,9 @@ void md_super_wait(mddev_t *mddev) finish_wait(&mddev->sb_wait, &wq); } -static int bi_complete(struct bio *bio, unsigned int bytes_done, int error) +static void bi_complete(struct bio *bio, int error) { - if (bio->bi_size) - return 1; - complete((struct completion*)bio->bi_private); - return 0; } int sync_page_io(struct block_device *bdev, sector_t sector, int size, diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 1e2af43a73b9..f2a63f394ad9 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -82,21 +82,17 @@ static void multipath_end_bh_io (struct multipath_bh *mp_bh, int err) struct bio *bio = mp_bh->master_bio; multipath_conf_t *conf = mddev_to_conf(mp_bh->mddev); - bio_endio(bio, bio->bi_size, err); + bio_endio(bio, err); mempool_free(mp_bh, conf->pool); } -static int multipath_end_request(struct bio *bio, unsigned int bytes_done, - int error) +static void multipath_end_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); struct multipath_bh * mp_bh = (struct multipath_bh *)(bio->bi_private); multipath_conf_t *conf = mddev_to_conf(mp_bh->mddev); mdk_rdev_t *rdev = conf->multipaths[mp_bh->path].rdev; - if (bio->bi_size) - return 1; - if (uptodate) multipath_end_bh_io(mp_bh, 0); else if (!bio_rw_ahead(bio)) { @@ -112,7 +108,6 @@ static int multipath_end_request(struct bio *bio, unsigned int bytes_done, } else multipath_end_bh_io(mp_bh, error); rdev_dec_pending(rdev, conf->mddev); - return 0; } static void unplug_slaves(mddev_t *mddev) @@ -155,7 +150,7 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio) const int rw = bio_data_dir(bio); if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -169,7 +164,7 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio) mp_bh->path = multipath_map(conf); if (mp_bh->path < 0) { - bio_endio(bio, bio->bi_size, -EIO); + bio_endio(bio, -EIO); mempool_free(mp_bh, conf->pool); return 0; } diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index b8216bc6db45..ef0da2d84959 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -420,7 +420,7 @@ static int raid0_make_request (struct request_queue *q, struct bio *bio) const int rw = bio_data_dir(bio); if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -490,7 +490,7 @@ bad_map: " or bigger than %dk %llu %d\n", chunk_size, (unsigned long long)bio->bi_sector, bio->bi_size >> 10); - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index f33a729960ca..6d03bea6fa58 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -238,7 +238,7 @@ static void raid_end_bio_io(r1bio_t *r1_bio) (unsigned long long) bio->bi_sector + (bio->bi_size >> 9) - 1); - bio_endio(bio, bio->bi_size, + bio_endio(bio, test_bit(R1BIO_Uptodate, &r1_bio->state) ? 0 : -EIO); } free_r1bio(r1_bio); @@ -255,16 +255,13 @@ static inline void update_head_pos(int disk, r1bio_t *r1_bio) r1_bio->sector + (r1_bio->sectors); } -static int raid1_end_read_request(struct bio *bio, unsigned int bytes_done, int error) +static void raid1_end_read_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private); int mirror; conf_t *conf = mddev_to_conf(r1_bio->mddev); - if (bio->bi_size) - return 1; - mirror = r1_bio->read_disk; /* * this branch is our 'one mirror IO has finished' event handler: @@ -301,10 +298,9 @@ static int raid1_end_read_request(struct bio *bio, unsigned int bytes_done, int } rdev_dec_pending(conf->mirrors[mirror].rdev, conf->mddev); - return 0; } -static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int error) +static void raid1_end_write_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private); @@ -312,8 +308,6 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int conf_t *conf = mddev_to_conf(r1_bio->mddev); struct bio *to_put = NULL; - if (bio->bi_size) - return 1; for (mirror = 0; mirror < conf->raid_disks; mirror++) if (r1_bio->bios[mirror] == bio) @@ -366,7 +360,7 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int (unsigned long long) mbio->bi_sector, (unsigned long long) mbio->bi_sector + (mbio->bi_size >> 9) - 1); - bio_endio(mbio, mbio->bi_size, 0); + bio_endio(mbio, 0); } } } @@ -400,8 +394,6 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int if (to_put) bio_put(to_put); - - return 0; } @@ -796,7 +788,7 @@ static int make_request(struct request_queue *q, struct bio * bio) if (unlikely(!mddev->barriers_work && bio_barrier(bio))) { if (rw == WRITE) md_write_end(mddev); - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -1137,14 +1129,11 @@ abort: } -static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error) +static void end_sync_read(struct bio *bio, int error) { r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private); int i; - if (bio->bi_size) - return 1; - for (i=r1_bio->mddev->raid_disks; i--; ) if (r1_bio->bios[i] == bio) break; @@ -1160,10 +1149,9 @@ static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error) if (atomic_dec_and_test(&r1_bio->remaining)) reschedule_retry(r1_bio); - return 0; } -static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) +static void end_sync_write(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r1bio_t * r1_bio = (r1bio_t *)(bio->bi_private); @@ -1172,9 +1160,6 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) int i; int mirror=0; - if (bio->bi_size) - return 1; - for (i = 0; i < conf->raid_disks; i++) if (r1_bio->bios[i] == bio) { mirror = i; @@ -1200,7 +1185,6 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) md_done_sync(mddev, r1_bio->sectors, uptodate); put_buf(r1_bio); } - return 0; } static void sync_request_write(mddev_t *mddev, r1bio_t *r1_bio) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 4e53792aa520..25a96c42bdb0 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -227,7 +227,7 @@ static void raid_end_bio_io(r10bio_t *r10_bio) { struct bio *bio = r10_bio->master_bio; - bio_endio(bio, bio->bi_size, + bio_endio(bio, test_bit(R10BIO_Uptodate, &r10_bio->state) ? 0 : -EIO); free_r10bio(r10_bio); } @@ -243,15 +243,13 @@ static inline void update_head_pos(int slot, r10bio_t *r10_bio) r10_bio->devs[slot].addr + (r10_bio->sectors); } -static int raid10_end_read_request(struct bio *bio, unsigned int bytes_done, int error) +static void raid10_end_read_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r10bio_t * r10_bio = (r10bio_t *)(bio->bi_private); int slot, dev; conf_t *conf = mddev_to_conf(r10_bio->mddev); - if (bio->bi_size) - return 1; slot = r10_bio->read_slot; dev = r10_bio->devs[slot].devnum; @@ -284,19 +282,15 @@ static int raid10_end_read_request(struct bio *bio, unsigned int bytes_done, int } rdev_dec_pending(conf->mirrors[dev].rdev, conf->mddev); - return 0; } -static int raid10_end_write_request(struct bio *bio, unsigned int bytes_done, int error) +static void raid10_end_write_request(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r10bio_t * r10_bio = (r10bio_t *)(bio->bi_private); int slot, dev; conf_t *conf = mddev_to_conf(r10_bio->mddev); - if (bio->bi_size) - return 1; - for (slot = 0; slot < conf->copies; slot++) if (r10_bio->devs[slot].bio == bio) break; @@ -339,7 +333,6 @@ static int raid10_end_write_request(struct bio *bio, unsigned int bytes_done, in } rdev_dec_pending(conf->mirrors[dev].rdev, conf->mddev); - return 0; } @@ -787,7 +780,7 @@ static int make_request(struct request_queue *q, struct bio * bio) unsigned long flags; if (unlikely(bio_barrier(bio))) { - bio_endio(bio, bio->bi_size, -EOPNOTSUPP); + bio_endio(bio, -EOPNOTSUPP); return 0; } @@ -819,7 +812,7 @@ static int make_request(struct request_queue *q, struct bio * bio) " or bigger than %dk %llu %d\n", chunk_sects/2, (unsigned long long)bio->bi_sector, bio->bi_size >> 10); - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } @@ -1155,15 +1148,12 @@ abort: } -static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error) +static void end_sync_read(struct bio *bio, int error) { r10bio_t * r10_bio = (r10bio_t *)(bio->bi_private); conf_t *conf = mddev_to_conf(r10_bio->mddev); int i,d; - if (bio->bi_size) - return 1; - for (i=0; i<conf->copies; i++) if (r10_bio->devs[i].bio == bio) break; @@ -1192,10 +1182,9 @@ static int end_sync_read(struct bio *bio, unsigned int bytes_done, int error) reschedule_retry(r10_bio); } rdev_dec_pending(conf->mirrors[d].rdev, conf->mddev); - return 0; } -static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) +static void end_sync_write(struct bio *bio, int error) { int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); r10bio_t * r10_bio = (r10bio_t *)(bio->bi_private); @@ -1203,9 +1192,6 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) conf_t *conf = mddev_to_conf(mddev); int i,d; - if (bio->bi_size) - return 1; - for (i = 0; i < conf->copies; i++) if (r10_bio->devs[i].bio == bio) break; @@ -1228,7 +1214,6 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) } } rdev_dec_pending(conf->mirrors[d].rdev, mddev); - return 0; } /* @@ -1374,7 +1359,7 @@ static void recovery_request_write(mddev_t *mddev, r10bio_t *r10_bio) if (test_bit(R10BIO_Uptodate, &r10_bio->state)) generic_make_request(wbio); else - bio_endio(wbio, wbio->bi_size, -EIO); + bio_endio(wbio, -EIO); } diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f96dea975fa5..caaca9e178bc 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -108,12 +108,11 @@ static void return_io(struct bio *return_bi) { struct bio *bi = return_bi; while (bi) { - int bytes = bi->bi_size; return_bi = bi->bi_next; bi->bi_next = NULL; bi->bi_size = 0; - bi->bi_end_io(bi, bytes, + bi->bi_end_io(bi, test_bit(BIO_UPTODATE, &bi->bi_flags) ? 0 : -EIO); bi = return_bi; @@ -382,10 +381,10 @@ static unsigned long get_stripe_work(struct stripe_head *sh) return pending; } -static int -raid5_end_read_request(struct bio *bi, unsigned int bytes_done, int error); -static int -raid5_end_write_request (struct bio *bi, unsigned int bytes_done, int error); +static void +raid5_end_read_request(struct bio *bi, int error); +static void +raid5_end_write_request(struct bio *bi, int error); static void ops_run_io(struct stripe_head *sh) { @@ -1110,8 +1109,7 @@ static void shrink_stripes(raid5_conf_t *conf) conf->slab_cache = NULL; } -static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done, - int error) +static void raid5_end_read_request(struct bio * bi, int error) { struct stripe_head *sh = bi->bi_private; raid5_conf_t *conf = sh->raid_conf; @@ -1120,8 +1118,6 @@ static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done, char b[BDEVNAME_SIZE]; mdk_rdev_t *rdev; - if (bi->bi_size) - return 1; for (i=0 ; i<disks; i++) if (bi == &sh->dev[i].req) @@ -1132,7 +1128,7 @@ static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done, uptodate); if (i == disks) { BUG(); - return 0; + return; } if (uptodate) { @@ -1185,20 +1181,15 @@ static int raid5_end_read_request(struct bio * bi, unsigned int bytes_done, clear_bit(R5_LOCKED, &sh->dev[i].flags); set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); - return 0; } -static int raid5_end_write_request (struct bio *bi, unsigned int bytes_done, - int error) +static void raid5_end_write_request (struct bio *bi, int error) { struct stripe_head *sh = bi->bi_private; raid5_conf_t *conf = sh->raid_conf; int disks = sh->disks, i; int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags); - if (bi->bi_size) - return 1; - for (i=0 ; i<disks; i++) if (bi == &sh->dev[i].req) break; @@ -1208,7 +1199,7 @@ static int raid5_end_write_request (struct bio *bi, unsigned int bytes_done, uptodate); if (i == disks) { BUG(); - return 0; + return; } if (!uptodate) @@ -1219,7 +1210,6 @@ static int raid5_end_write_request (struct bio *bi, unsigned int bytes_done, clear_bit(R5_LOCKED, &sh->dev[i].flags); set_bit(STRIPE_HANDLE, &sh->state); release_stripe(sh); - return 0; } @@ -3340,7 +3330,7 @@ static struct bio *remove_bio_from_retry(raid5_conf_t *conf) * first). * If the read failed.. */ -static int raid5_align_endio(struct bio *bi, unsigned int bytes, int error) +static void raid5_align_endio(struct bio *bi, int error) { struct bio* raid_bi = bi->bi_private; mddev_t *mddev; @@ -3348,8 +3338,6 @@ static int raid5_align_endio(struct bio *bi, unsigned int bytes, int error) int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags); mdk_rdev_t *rdev; - if (bi->bi_size) - return 1; bio_put(bi); mddev = raid_bi->bi_bdev->bd_disk->queue->queuedata; @@ -3360,17 +3348,16 @@ static int raid5_align_endio(struct bio *bi, unsigned int bytes, int error) rdev_dec_pending(rdev, conf->mddev); if (!error && uptodate) { - bio_endio(raid_bi, bytes, 0); + bio_endio(raid_bi, 0); if (atomic_dec_and_test(&conf->active_aligned_reads)) wake_up(&conf->wait_for_stripe); - return 0; + return; } pr_debug("raid5_align_endio : io error...handing IO for a retry\n"); add_bio_to_retry(raid_bi, conf); - return 0; } static int bio_fits_rdev(struct bio *bi) @@ -3476,7 +3463,7 @@ static int make_request(struct request_queue *q, struct bio * bi) int remaining; if (unlikely(bio_barrier(bi))) { - bio_endio(bi, bi->bi_size, -EOPNOTSUPP); + bio_endio(bi, -EOPNOTSUPP); return 0; } @@ -3592,12 +3579,11 @@ static int make_request(struct request_queue *q, struct bio * bi) remaining = --bi->bi_phys_segments; spin_unlock_irq(&conf->device_lock); if (remaining == 0) { - int bytes = bi->bi_size; if ( rw == WRITE ) md_write_end(mddev); - bi->bi_size = 0; - bi->bi_end_io(bi, bytes, + + bi->bi_end_io(bi, test_bit(BIO_UPTODATE, &bi->bi_flags) ? 0 : -EIO); } @@ -3875,10 +3861,8 @@ static int retry_aligned_read(raid5_conf_t *conf, struct bio *raid_bio) remaining = --raid_bio->bi_phys_segments; spin_unlock_irq(&conf->device_lock); if (remaining == 0) { - int bytes = raid_bio->bi_size; - raid_bio->bi_size = 0; - raid_bio->bi_end_io(raid_bio, bytes, + raid_bio->bi_end_io(raid_bio, test_bit(BIO_UPTODATE, &raid_bio->bi_flags) ? 0 : -EIO); } diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c index d32c60dbdd82..571320ab9e1a 100644 --- a/drivers/s390/block/dasd_diag.c +++ b/drivers/s390/block/dasd_diag.c @@ -472,14 +472,13 @@ dasd_diag_build_cp(struct dasd_device * device, struct request *req) struct dasd_ccw_req *cqr; struct dasd_diag_req *dreq; struct dasd_diag_bio *dbio; - struct bio *bio; + struct req_iterator iter; struct bio_vec *bv; char *dst; unsigned int count, datasize; sector_t recid, first_rec, last_rec; unsigned int blksize, off; unsigned char rw_cmd; - int i; if (rq_data_dir(req) == READ) rw_cmd = MDSK_READ_REQ; @@ -493,13 +492,11 @@ dasd_diag_build_cp(struct dasd_device * device, struct request *req) last_rec = (req->sector + req->nr_sectors - 1) >> device->s2b_shift; /* Check struct bio and count the number of blocks for the request. */ count = 0; - rq_for_each_bio(bio, req) { - bio_for_each_segment(bv, bio, i) { - if (bv->bv_len & (blksize - 1)) - /* Fba can only do full blocks. */ - return ERR_PTR(-EINVAL); - count += bv->bv_len >> (device->s2b_shift + 9); - } + rq_for_each_segment(bv, req, iter) { + if (bv->bv_len & (blksize - 1)) + /* Fba can only do full blocks. */ + return ERR_PTR(-EINVAL); + count += bv->bv_len >> (device->s2b_shift + 9); } /* Paranoia. */ if (count != last_rec - first_rec + 1) @@ -516,18 +513,16 @@ dasd_diag_build_cp(struct dasd_device * device, struct request *req) dreq->block_count = count; dbio = dreq->bio; recid = first_rec; - rq_for_each_bio(bio, req) { - bio_for_each_segment(bv, bio, i) { - dst = page_address(bv->bv_page) + bv->bv_offset; - for (off = 0; off < bv->bv_len; off += blksize) { - memset(dbio, 0, sizeof (struct dasd_diag_bio)); - dbio->type = rw_cmd; - dbio->block_number = recid + 1; - dbio->buffer = dst; - dbio++; - dst += blksize; - recid++; - } + rq_for_each_segment(bv, req, iter) { + dst = page_address(bv->bv_page) + bv->bv_offset; + for (off = 0; off < bv->bv_len; off += blksize) { + memset(dbio, 0, sizeof (struct dasd_diag_bio)); + dbio->type = rw_cmd; + dbio->block_number = recid + 1; + dbio->buffer = dst; + dbio++; + dst += blksize; + recid++; } } cqr->retries = DIAG_MAX_RETRIES; diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index ea63ba7828f9..44adf8496bda 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1176,7 +1176,7 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) struct LO_eckd_data *LO_data; struct dasd_ccw_req *cqr; struct ccw1 *ccw; - struct bio *bio; + struct req_iterator iter; struct bio_vec *bv; char *dst; unsigned int blksize, blk_per_trk, off; @@ -1185,7 +1185,6 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) sector_t first_trk, last_trk; unsigned int first_offs, last_offs; unsigned char cmd, rcmd; - int i; private = (struct dasd_eckd_private *) device->private; if (rq_data_dir(req) == READ) @@ -1206,18 +1205,15 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) /* Check struct bio and count the number of blocks for the request. */ count = 0; cidaw = 0; - rq_for_each_bio(bio, req) { - bio_for_each_segment(bv, bio, i) { - if (bv->bv_len & (blksize - 1)) - /* Eckd can only do full blocks. */ - return ERR_PTR(-EINVAL); - count += bv->bv_len >> (device->s2b_shift + 9); + rq_for_each_segment(bv, req, iter) { + if (bv->bv_len & (blksize - 1)) + /* Eckd can only do full blocks. */ + return ERR_PTR(-EINVAL); + count += bv->bv_len >> (device->s2b_shift + 9); #if defined(CONFIG_64BIT) - if (idal_is_needed (page_address(bv->bv_page), - bv->bv_len)) - cidaw += bv->bv_len >> (device->s2b_shift + 9); + if (idal_is_needed (page_address(bv->bv_page), bv->bv_len)) + cidaw += bv->bv_len >> (device->s2b_shift + 9); #endif - } } /* Paranoia. */ if (count != last_rec - first_rec + 1) @@ -1257,7 +1253,7 @@ dasd_eckd_build_cp(struct dasd_device * device, struct request *req) locate_record(ccw++, LO_data++, first_trk, first_offs + 1, last_rec - recid + 1, cmd, device, blksize); } - rq_for_each_bio(bio, req) bio_for_each_segment(bv, bio, i) { + rq_for_each_segment(bv, req, iter) { dst = page_address(bv->bv_page) + bv->bv_offset; if (dasd_page_cache) { char *copy = kmem_cache_alloc(dasd_page_cache, @@ -1328,12 +1324,12 @@ dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req) { struct dasd_eckd_private *private; struct ccw1 *ccw; - struct bio *bio; + struct req_iterator iter; struct bio_vec *bv; char *dst, *cda; unsigned int blksize, blk_per_trk, off; sector_t recid; - int i, status; + int status; if (!dasd_page_cache) goto out; @@ -1346,7 +1342,7 @@ dasd_eckd_free_cp(struct dasd_ccw_req *cqr, struct request *req) ccw++; if (private->uses_cdl == 0 || recid > 2*blk_per_trk) ccw++; - rq_for_each_bio(bio, req) bio_for_each_segment(bv, bio, i) { + rq_for_each_segment(bv, req, iter) { dst = page_address(bv->bv_page) + bv->bv_offset; for (off = 0; off < bv->bv_len; off += blksize) { /* Skip locate record. */ diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index da16ead8aff2..1d95822e0b8e 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -234,14 +234,13 @@ dasd_fba_build_cp(struct dasd_device * device, struct request *req) struct LO_fba_data *LO_data; struct dasd_ccw_req *cqr; struct ccw1 *ccw; - struct bio *bio; + struct req_iterator iter; struct bio_vec *bv; char *dst; int count, cidaw, cplength, datasize; sector_t recid, first_rec, last_rec; unsigned int blksize, off; unsigned char cmd; - int i; private = (struct dasd_fba_private *) device->private; if (rq_data_dir(req) == READ) { @@ -257,18 +256,15 @@ dasd_fba_build_cp(struct dasd_device * device, struct request *req) /* Check struct bio and count the number of blocks for the request. */ count = 0; cidaw = 0; - rq_for_each_bio(bio, req) { - bio_for_each_segment(bv, bio, i) { - if (bv->bv_len & (blksize - 1)) - /* Fba can only do full blocks. */ - return ERR_PTR(-EINVAL); - count += bv->bv_len >> (device->s2b_shift + 9); + rq_for_each_segment(bv, req, iter) { + if (bv->bv_len & (blksize - 1)) + /* Fba can only do full blocks. */ + return ERR_PTR(-EINVAL); + count += bv->bv_len >> (device->s2b_shift + 9); #if defined(CONFIG_64BIT) - if (idal_is_needed (page_address(bv->bv_page), - bv->bv_len)) - cidaw += bv->bv_len / blksize; + if (idal_is_needed (page_address(bv->bv_page), bv->bv_len)) + cidaw += bv->bv_len / blksize; #endif - } } /* Paranoia. */ if (count != last_rec - first_rec + 1) @@ -304,7 +300,7 @@ dasd_fba_build_cp(struct dasd_device * device, struct request *req) locate_record(ccw++, LO_data++, rq_data_dir(req), 0, count); } recid = first_rec; - rq_for_each_bio(bio, req) bio_for_each_segment(bv, bio, i) { + rq_for_each_segment(bv, req, iter) { dst = page_address(bv->bv_page) + bv->bv_offset; if (dasd_page_cache) { char *copy = kmem_cache_alloc(dasd_page_cache, @@ -359,11 +355,11 @@ dasd_fba_free_cp(struct dasd_ccw_req *cqr, struct request *req) { struct dasd_fba_private *private; struct ccw1 *ccw; - struct bio *bio; + struct req_iterator iter; struct bio_vec *bv; char *dst, *cda; unsigned int blksize, off; - int i, status; + int status; if (!dasd_page_cache) goto out; @@ -374,7 +370,7 @@ dasd_fba_free_cp(struct dasd_ccw_req *cqr, struct request *req) ccw++; if (private->rdc_data.mode.bits.data_chain != 0) ccw++; - rq_for_each_bio(bio, req) bio_for_each_segment(bv, bio, i) { + rq_for_each_segment(bv, req, iter) { dst = page_address(bv->bv_page) + bv->bv_offset; for (off = 0; off < bv->bv_len; off += blksize) { /* Skip locate record. */ diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 4d8798bacf97..859f870552e3 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -674,10 +674,10 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio) } bytes_done += bvec->bv_len; } - bio_endio(bio, bytes_done, 0); + bio_endio(bio, 0); return 0; fail: - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index 354a060e5bec..0fbacc8b1063 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -230,12 +230,10 @@ static int xpram_make_request(struct request_queue *q, struct bio *bio) } } set_bit(BIO_UPTODATE, &bio->bi_flags); - bytes = bio->bi_size; - bio->bi_size = 0; - bio->bi_end_io(bio, bytes, 0); + bio_end_io(bio, 0); return 0; fail: - bio_io_error(bio, bio->bi_size); + bio_io_error(bio); return 0; } diff --git a/drivers/s390/char/tape_34xx.c b/drivers/s390/char/tape_34xx.c index 80e7a537e7d2..5b47e9cce75f 100644 --- a/drivers/s390/char/tape_34xx.c +++ b/drivers/s390/char/tape_34xx.c @@ -1134,21 +1134,18 @@ tape_34xx_bread(struct tape_device *device, struct request *req) { struct tape_request *request; struct ccw1 *ccw; - int count = 0, i; + int count = 0; unsigned off; char *dst; struct bio_vec *bv; - struct bio *bio; + struct req_iterator iter; struct tape_34xx_block_id * start_block; DBF_EVENT(6, "xBREDid:"); /* Count the number of blocks for the request. */ - rq_for_each_bio(bio, req) { - bio_for_each_segment(bv, bio, i) { - count += bv->bv_len >> (TAPEBLOCK_HSEC_S2B + 9); - } - } + rq_for_each_segment(bv, req, iter) + count += bv->bv_len >> (TAPEBLOCK_HSEC_S2B + 9); /* Allocate the ccw request. */ request = tape_alloc_request(3+count+1, 8); @@ -1175,18 +1172,15 @@ tape_34xx_bread(struct tape_device *device, struct request *req) ccw = tape_ccw_cc(ccw, NOP, 0, NULL); ccw = tape_ccw_cc(ccw, NOP, 0, NULL); - rq_for_each_bio(bio, req) { - bio_for_each_segment(bv, bio, i) { - dst = kmap(bv->bv_page) + bv->bv_offset; - for (off = 0; off < bv->bv_len; - off += TAPEBLOCK_HSEC_SIZE) { - ccw->flags = CCW_FLAG_CC; - ccw->cmd_code = READ_FORWARD; - ccw->count = TAPEBLOCK_HSEC_SIZE; - set_normalized_cda(ccw, (void*) __pa(dst)); - ccw++; - dst += TAPEBLOCK_HSEC_SIZE; - } + rq_for_each_segment(bv, req, iter) { + dst = kmap(bv->bv_page) + bv->bv_offset; + for (off = 0; off < bv->bv_len; off += TAPEBLOCK_HSEC_SIZE) { + ccw->flags = CCW_FLAG_CC; + ccw->cmd_code = READ_FORWARD; + ccw->count = TAPEBLOCK_HSEC_SIZE; + set_normalized_cda(ccw, (void*) __pa(dst)); + ccw++; + dst += TAPEBLOCK_HSEC_SIZE; } } diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c index 7e2b2ab49264..9f244c591eeb 100644 --- a/drivers/s390/char/tape_3590.c +++ b/drivers/s390/char/tape_3590.c @@ -623,21 +623,19 @@ tape_3590_bread(struct tape_device *device, struct request *req) { struct tape_request *request; struct ccw1 *ccw; - int count = 0, start_block, i; + int count = 0, start_block; unsigned off; char *dst; struct bio_vec *bv; - struct bio *bio; + struct req_iterator iter; DBF_EVENT(6, "xBREDid:"); start_block = req->sector >> TAPEBLOCK_HSEC_S2B; DBF_EVENT(6, "start_block = %i\n", start_block); - rq_for_each_bio(bio, req) { - bio_for_each_segment(bv, bio, i) { - count += bv->bv_len >> (TAPEBLOCK_HSEC_S2B + 9); - } - } + rq_for_each_segment(bv, req, iter) + count += bv->bv_len >> (TAPEBLOCK_HSEC_S2B + 9); + request = tape_alloc_request(2 + count + 1, 4); if (IS_ERR(request)) return request; @@ -653,21 +651,18 @@ tape_3590_bread(struct tape_device *device, struct request *req) */ ccw = tape_ccw_cc(ccw, NOP, 0, NULL); - rq_for_each_bio(bio, req) { - bio_for_each_segment(bv, bio, i) { - dst = page_address(bv->bv_page) + bv->bv_offset; - for (off = 0; off < bv->bv_len; - off += TAPEBLOCK_HSEC_SIZE) { - ccw->flags = CCW_FLAG_CC; - ccw->cmd_code = READ_FORWARD; - ccw->count = TAPEBLOCK_HSEC_SIZE; - set_normalized_cda(ccw, (void *) __pa(dst)); - ccw++; - dst += TAPEBLOCK_HSEC_SIZE; - } - if (off > bv->bv_len) - BUG(); + rq_for_each_segment(bv, req, iter) { + dst = page_address(bv->bv_page) + bv->bv_offset; + for (off = 0; off < bv->bv_len; off += TAPEBLOCK_HSEC_SIZE) { + ccw->flags = CCW_FLAG_CC; + ccw->cmd_code = READ_FORWARD; + ccw->count = TAPEBLOCK_HSEC_SIZE; + set_normalized_cda(ccw, (void *) __pa(dst)); + ccw++; + dst += TAPEBLOCK_HSEC_SIZE; } + if (off > bv->bv_len) + BUG(); } ccw = tape_ccw_end(ccw, NOP, 0, NULL); DBF_EVENT(6, "xBREDccwg\n"); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index a417a6ff9f97..604f4d717933 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -263,25 +263,12 @@ static int scsi_merge_bio(struct request *rq, struct bio *bio) bio->bi_rw |= (1 << BIO_RW); blk_queue_bounce(q, &bio); - if (!rq->bio) - blk_rq_bio_prep(q, rq, bio); - else if (!ll_back_merge_fn(q, rq, bio)) - return -EINVAL; - else { - rq->biotail->bi_next = bio; - rq->biotail = bio; - } - - return 0; + return blk_rq_append_bio(q, rq, bio); } -static int scsi_bi_endio(struct bio *bio, unsigned int bytes_done, int error) +static void scsi_bi_endio(struct bio *bio, int error) { - if (bio->bi_size) - return 1; - bio_put(bio); - return 0; } /** @@ -337,7 +324,7 @@ static int scsi_req_map_sg(struct request *rq, struct scatterlist *sgl, if (bio->bi_vcnt >= nr_vecs) { err = scsi_merge_bio(rq, bio); if (err) { - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); goto free_bios; } bio = NULL; @@ -359,7 +346,7 @@ free_bios: /* * call endio instead of bio_put incase it was bounced */ - bio_endio(bio, bio->bi_size, 0); + bio_endio(bio, 0); } return err; @@ -798,13 +798,9 @@ void bio_unmap_user(struct bio *bio) bio_put(bio); } -static int bio_map_kern_endio(struct bio *bio, unsigned int bytes_done, int err) +static void bio_map_kern_endio(struct bio *bio, int err) { - if (bio->bi_size) - return 1; - bio_put(bio); - return 0; } @@ -1002,34 +998,26 @@ void bio_check_pages_dirty(struct bio *bio) /** * bio_endio - end I/O on a bio * @bio: bio - * @bytes_done: number of bytes completed * @error: error, if any * * Description: - * bio_endio() will end I/O on @bytes_done number of bytes. This may be - * just a partial part of the bio, or it may be the whole bio. bio_endio() - * is the preferred way to end I/O on a bio, it takes care of decrementing - * bi_size and clearing BIO_UPTODATE on error. @error is 0 on success, and - * and one of the established -Exxxx (-EIO, for instance) error values in - * case something went wrong. Noone should call bi_end_io() directly on - * a bio unless they own it and thus know that it has an end_io function. + * bio_endio() will end I/O on the whole bio. bio_endio() is the + * preferred way to end I/O on a bio, it takes care of clearing + * BIO_UPTODATE on error. @error is 0 on success, and and one of the + * established -Exxxx (-EIO, for instance) error values in case + * something went wrong. Noone should call bi_end_io() directly on a + * bio unless they own it and thus know that it has an end_io + * function. **/ -void bio_endio(struct bio *bio, unsigned int bytes_done, int error) +void bio_endio(struct bio *bio, int error) { if (error) clear_bit(BIO_UPTODATE, &bio->bi_flags); - - if (unlikely(bytes_done > bio->bi_size)) { - printk("%s: want %u bytes done, only %u left\n", __FUNCTION__, - bytes_done, bio->bi_size); - bytes_done = bio->bi_size; - } - - bio->bi_size -= bytes_done; - bio->bi_sector += (bytes_done >> 9); + else if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) + error = -EIO; if (bio->bi_end_io) - bio->bi_end_io(bio, bytes_done, error); + bio->bi_end_io(bio, error); } void bio_pair_release(struct bio_pair *bp) @@ -1037,37 +1025,29 @@ void bio_pair_release(struct bio_pair *bp) if (atomic_dec_and_test(&bp->cnt)) { struct bio *master = bp->bio1.bi_private; - bio_endio(master, master->bi_size, bp->error); + bio_endio(master, bp->error); mempool_free(bp, bp->bio2.bi_private); } } -static int bio_pair_end_1(struct bio * bi, unsigned int done, int err) +static void bio_pair_end_1(struct bio *bi, int err) { struct bio_pair *bp = container_of(bi, struct bio_pair, bio1); if (err) bp->error = err; - if (bi->bi_size) - return 1; - bio_pair_release(bp); - return 0; } -static int bio_pair_end_2(struct bio * bi, unsigned int done, int err) +static void bio_pair_end_2(struct bio *bi, int err) { struct bio_pair *bp = container_of(bi, struct bio_pair, bio2); if (err) bp->error = err; - if (bi->bi_size) - return 1; - bio_pair_release(bp); - return 0; } /* diff --git a/fs/block_dev.c b/fs/block_dev.c index 2980eabe5779..6339a30879b7 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -172,7 +172,7 @@ blkdev_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, } #if 0 -static int blk_end_aio(struct bio *bio, unsigned int bytes_done, int error) +static void blk_end_aio(struct bio *bio, int error) { struct kiocb *iocb = bio->bi_private; atomic_t *bio_count = &iocb->ki_bio_count; diff --git a/fs/buffer.c b/fs/buffer.c index 0e5ec371ce72..75b51dfa5e03 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -2634,13 +2634,10 @@ sector_t generic_block_bmap(struct address_space *mapping, sector_t block, return tmp.b_blocknr; } -static int end_bio_bh_io_sync(struct bio *bio, unsigned int bytes_done, int err) +static void end_bio_bh_io_sync(struct bio *bio, int err) { struct buffer_head *bh = bio->bi_private; - if (bio->bi_size) - return 1; - if (err == -EOPNOTSUPP) { set_bit(BIO_EOPNOTSUPP, &bio->bi_flags); set_bit(BH_Eopnotsupp, &bh->b_state); @@ -2648,7 +2645,6 @@ static int end_bio_bh_io_sync(struct bio *bio, unsigned int bytes_done, int err) bh->b_end_io(bh, test_bit(BIO_UPTODATE, &bio->bi_flags)); bio_put(bio); - return 0; } int submit_bh(int rw, struct buffer_head * bh) diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 37310b0e8107..b9e3357bcc2e 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -21,7 +21,6 @@ #include <linux/if.h> #include <linux/if_bridge.h> #include <linux/slab.h> -#include <linux/hdreg.h> #include <linux/raid/md.h> #include <linux/kd.h> #include <linux/dirent.h> @@ -33,12 +32,10 @@ #include <linux/vt.h> #include <linux/fs.h> #include <linux/file.h> -#include <linux/fd.h> #include <linux/ppp_defs.h> #include <linux/if_ppp.h> #include <linux/if_pppox.h> #include <linux/mtio.h> -#include <linux/cdrom.h> #include <linux/auto_fs.h> #include <linux/auto_fs4.h> #include <linux/tty.h> @@ -48,7 +45,6 @@ #include <linux/netdevice.h> #include <linux/raw.h> #include <linux/smb_fs.h> -#include <linux/blkpg.h> #include <linux/blkdev.h> #include <linux/elevator.h> #include <linux/rtc.h> @@ -62,7 +58,6 @@ #include <linux/i2c-dev.h> #include <linux/wireless.h> #include <linux/atalk.h> -#include <linux/blktrace_api.h> #include <linux/loop.h> #include <net/bluetooth/bluetooth.h> @@ -668,53 +663,6 @@ out: #endif #ifdef CONFIG_BLOCK -struct hd_geometry32 { - unsigned char heads; - unsigned char sectors; - unsigned short cylinders; - u32 start; -}; - -static int hdio_getgeo(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - mm_segment_t old_fs = get_fs(); - struct hd_geometry geo; - struct hd_geometry32 __user *ugeo; - int err; - - set_fs (KERNEL_DS); - err = sys_ioctl(fd, HDIO_GETGEO, (unsigned long)&geo); - set_fs (old_fs); - ugeo = compat_ptr(arg); - if (!err) { - err = copy_to_user (ugeo, &geo, 4); - err |= __put_user (geo.start, &ugeo->start); - if (err) - err = -EFAULT; - } - return err; -} - -static int hdio_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - mm_segment_t old_fs = get_fs(); - unsigned long kval; - unsigned int __user *uvp; - int error; - - set_fs(KERNEL_DS); - error = sys_ioctl(fd, cmd, (long)&kval); - set_fs(old_fs); - - if(error == 0) { - uvp = compat_ptr(arg); - if(put_user(kval, uvp)) - error = -EFAULT; - } - return error; -} - - typedef struct sg_io_hdr32 { compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */ compat_int_t dxfer_direction; /* [i] data transfer direction */ @@ -1089,108 +1037,6 @@ static int mt_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg) return err ? -EFAULT: 0; } -struct cdrom_read_audio32 { - union cdrom_addr addr; - u8 addr_format; - compat_int_t nframes; - compat_caddr_t buf; -}; - -struct cdrom_generic_command32 { - unsigned char cmd[CDROM_PACKET_SIZE]; - compat_caddr_t buffer; - compat_uint_t buflen; - compat_int_t stat; - compat_caddr_t sense; - unsigned char data_direction; - compat_int_t quiet; - compat_int_t timeout; - compat_caddr_t reserved[1]; -}; - -static int cdrom_do_read_audio(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct cdrom_read_audio __user *cdread_audio; - struct cdrom_read_audio32 __user *cdread_audio32; - __u32 data; - void __user *datap; - - cdread_audio = compat_alloc_user_space(sizeof(*cdread_audio)); - cdread_audio32 = compat_ptr(arg); - - if (copy_in_user(&cdread_audio->addr, - &cdread_audio32->addr, - (sizeof(*cdread_audio32) - - sizeof(compat_caddr_t)))) - return -EFAULT; - - if (get_user(data, &cdread_audio32->buf)) - return -EFAULT; - datap = compat_ptr(data); - if (put_user(datap, &cdread_audio->buf)) - return -EFAULT; - - return sys_ioctl(fd, cmd, (unsigned long) cdread_audio); -} - -static int cdrom_do_generic_command(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct cdrom_generic_command __user *cgc; - struct cdrom_generic_command32 __user *cgc32; - u32 data; - unsigned char dir; - int itmp; - - cgc = compat_alloc_user_space(sizeof(*cgc)); - cgc32 = compat_ptr(arg); - - if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) || - get_user(data, &cgc32->buffer) || - put_user(compat_ptr(data), &cgc->buffer) || - copy_in_user(&cgc->buflen, &cgc32->buflen, - (sizeof(unsigned int) + sizeof(int))) || - get_user(data, &cgc32->sense) || - put_user(compat_ptr(data), &cgc->sense) || - get_user(dir, &cgc32->data_direction) || - put_user(dir, &cgc->data_direction) || - get_user(itmp, &cgc32->quiet) || - put_user(itmp, &cgc->quiet) || - get_user(itmp, &cgc32->timeout) || - put_user(itmp, &cgc->timeout) || - get_user(data, &cgc32->reserved[0]) || - put_user(compat_ptr(data), &cgc->reserved[0])) - return -EFAULT; - - return sys_ioctl(fd, cmd, (unsigned long) cgc); -} - -static int cdrom_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - int err; - - switch(cmd) { - case CDROMREADAUDIO: - err = cdrom_do_read_audio(fd, cmd, arg); - break; - - case CDROM_SEND_PACKET: - err = cdrom_do_generic_command(fd, cmd, arg); - break; - - default: - do { - static int count; - if (++count <= 20) - printk("cdrom_ioctl: Unknown cmd fd(%d) " - "cmd(%08x) arg(%08x)\n", - (int)fd, (unsigned int)cmd, (unsigned int)arg); - } while(0); - err = -EINVAL; - break; - }; - - return err; -} #endif /* CONFIG_BLOCK */ #ifdef CONFIG_VT @@ -1536,71 +1382,11 @@ ret_einval(unsigned int fd, unsigned int cmd, unsigned long arg) return -EINVAL; } -#ifdef CONFIG_BLOCK -static int broken_blkgetsize(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - /* The mkswap binary hard codes it to Intel value :-((( */ - return w_long(fd, BLKGETSIZE, arg); -} - -struct blkpg_ioctl_arg32 { - compat_int_t op; - compat_int_t flags; - compat_int_t datalen; - compat_caddr_t data; -}; - -static int blkpg_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - struct blkpg_ioctl_arg32 __user *ua32 = compat_ptr(arg); - struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a)); - compat_caddr_t udata; - compat_int_t n; - int err; - - err = get_user(n, &ua32->op); - err |= put_user(n, &a->op); - err |= get_user(n, &ua32->flags); - err |= put_user(n, &a->flags); - err |= get_user(n, &ua32->datalen); - err |= put_user(n, &a->datalen); - err |= get_user(udata, &ua32->data); - err |= put_user(compat_ptr(udata), &a->data); - if (err) - return err; - - return sys_ioctl(fd, cmd, (unsigned long)a); -} -#endif - static int ioc_settimeout(unsigned int fd, unsigned int cmd, unsigned long arg) { return rw_long(fd, AUTOFS_IOC_SETTIMEOUT, arg); } -#ifdef CONFIG_BLOCK -/* Fix sizeof(sizeof()) breakage */ -#define BLKBSZGET_32 _IOR(0x12,112,int) -#define BLKBSZSET_32 _IOW(0x12,113,int) -#define BLKGETSIZE64_32 _IOR(0x12,114,int) - -static int do_blkbszget(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - return sys_ioctl(fd, BLKBSZGET, (unsigned long)compat_ptr(arg)); -} - -static int do_blkbszset(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - return sys_ioctl(fd, BLKBSZSET, (unsigned long)compat_ptr(arg)); -} - -static int do_blkgetsize64(unsigned int fd, unsigned int cmd, - unsigned long arg) -{ - return sys_ioctl(fd, BLKGETSIZE64, (unsigned long)compat_ptr(arg)); -} -#endif - /* Bluetooth ioctls */ #define HCIUARTSETPROTO _IOW('U', 200, int) #define HCIUARTGETPROTO _IOR('U', 201, int) @@ -1620,333 +1406,6 @@ static int do_blkgetsize64(unsigned int fd, unsigned int cmd, #define HIDPGETCONNLIST _IOR('H', 210, int) #define HIDPGETCONNINFO _IOR('H', 211, int) -#ifdef CONFIG_BLOCK -struct floppy_struct32 { - compat_uint_t size; - compat_uint_t sect; - compat_uint_t head; - compat_uint_t track; - compat_uint_t stretch; - unsigned char gap; - unsigned char rate; - unsigned char spec1; - unsigned char fmt_gap; - const compat_caddr_t name; -}; - -struct floppy_drive_params32 { - char cmos; - compat_ulong_t max_dtr; - compat_ulong_t hlt; - compat_ulong_t hut; - compat_ulong_t srt; - compat_ulong_t spinup; - compat_ulong_t spindown; - unsigned char spindown_offset; - unsigned char select_delay; - unsigned char rps; - unsigned char tracks; - compat_ulong_t timeout; - unsigned char interleave_sect; - struct floppy_max_errors max_errors; - char flags; - char read_track; - short autodetect[8]; - compat_int_t checkfreq; - compat_int_t native_format; -}; - -struct floppy_drive_struct32 { - signed char flags; - compat_ulong_t spinup_date; - compat_ulong_t select_date; - compat_ulong_t first_read_date; - short probed_format; - short track; - short maxblock; - short maxtrack; - compat_int_t generation; - compat_int_t keep_data; - compat_int_t fd_ref; - compat_int_t fd_device; - compat_int_t last_checked; - compat_caddr_t dmabuf; - compat_int_t bufblocks; -}; - -struct floppy_fdc_state32 { - compat_int_t spec1; - compat_int_t spec2; - compat_int_t dtr; - unsigned char version; - unsigned char dor; - compat_ulong_t address; - unsigned int rawcmd:2; - unsigned int reset:1; - unsigned int need_configure:1; - unsigned int perp_mode:2; - unsigned int has_fifo:1; - unsigned int driver_version; - unsigned char track[4]; -}; - -struct floppy_write_errors32 { - unsigned int write_errors; - compat_ulong_t first_error_sector; - compat_int_t first_error_generation; - compat_ulong_t last_error_sector; - compat_int_t last_error_generation; - compat_uint_t badness; -}; - -#define FDSETPRM32 _IOW(2, 0x42, struct floppy_struct32) -#define FDDEFPRM32 _IOW(2, 0x43, struct floppy_struct32) -#define FDGETPRM32 _IOR(2, 0x04, struct floppy_struct32) -#define FDSETDRVPRM32 _IOW(2, 0x90, struct floppy_drive_params32) -#define FDGETDRVPRM32 _IOR(2, 0x11, struct floppy_drive_params32) -#define FDGETDRVSTAT32 _IOR(2, 0x12, struct floppy_drive_struct32) -#define FDPOLLDRVSTAT32 _IOR(2, 0x13, struct floppy_drive_struct32) -#define FDGETFDCSTAT32 _IOR(2, 0x15, struct floppy_fdc_state32) -#define FDWERRORGET32 _IOR(2, 0x17, struct floppy_write_errors32) - -static struct { - unsigned int cmd32; - unsigned int cmd; -} fd_ioctl_trans_table[] = { - { FDSETPRM32, FDSETPRM }, - { FDDEFPRM32, FDDEFPRM }, - { FDGETPRM32, FDGETPRM }, - { FDSETDRVPRM32, FDSETDRVPRM }, - { FDGETDRVPRM32, FDGETDRVPRM }, - { FDGETDRVSTAT32, FDGETDRVSTAT }, - { FDPOLLDRVSTAT32, FDPOLLDRVSTAT }, - { FDGETFDCSTAT32, FDGETFDCSTAT }, - { FDWERRORGET32, FDWERRORGET } -}; - -#define NR_FD_IOCTL_TRANS ARRAY_SIZE(fd_ioctl_trans_table) - -static int fd_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - mm_segment_t old_fs = get_fs(); - void *karg = NULL; - unsigned int kcmd = 0; - int i, err; - - for (i = 0; i < NR_FD_IOCTL_TRANS; i++) - if (cmd == fd_ioctl_trans_table[i].cmd32) { - kcmd = fd_ioctl_trans_table[i].cmd; - break; - } - if (!kcmd) - return -EINVAL; - - switch (cmd) { - case FDSETPRM32: - case FDDEFPRM32: - case FDGETPRM32: - { - compat_uptr_t name; - struct floppy_struct32 __user *uf; - struct floppy_struct *f; - - uf = compat_ptr(arg); - f = karg = kmalloc(sizeof(struct floppy_struct), GFP_KERNEL); - if (!karg) - return -ENOMEM; - if (cmd == FDGETPRM32) - break; - err = __get_user(f->size, &uf->size); - err |= __get_user(f->sect, &uf->sect); - err |= __get_user(f->head, &uf->head); - err |= __get_user(f->track, &uf->track); - err |= __get_user(f->stretch, &uf->stretch); - err |= __get_user(f->gap, &uf->gap); - err |= __get_user(f->rate, &uf->rate); - err |= __get_user(f->spec1, &uf->spec1); - err |= __get_user(f->fmt_gap, &uf->fmt_gap); - err |= __get_user(name, &uf->name); - f->name = compat_ptr(name); - if (err) { - err = -EFAULT; - goto out; - } - break; - } - case FDSETDRVPRM32: - case FDGETDRVPRM32: - { - struct floppy_drive_params32 __user *uf; - struct floppy_drive_params *f; - - uf = compat_ptr(arg); - f = karg = kmalloc(sizeof(struct floppy_drive_params), GFP_KERNEL); - if (!karg) - return -ENOMEM; - if (cmd == FDGETDRVPRM32) - break; - err = __get_user(f->cmos, &uf->cmos); - err |= __get_user(f->max_dtr, &uf->max_dtr); - err |= __get_user(f->hlt, &uf->hlt); - err |= __get_user(f->hut, &uf->hut); - err |= __get_user(f->srt, &uf->srt); - err |= __get_user(f->spinup, &uf->spinup); - err |= __get_user(f->spindown, &uf->spindown); - err |= __get_user(f->spindown_offset, &uf->spindown_offset); - err |= __get_user(f->select_delay, &uf->select_delay); - err |= __get_user(f->rps, &uf->rps); - err |= __get_user(f->tracks, &uf->tracks); - err |= __get_user(f->timeout, &uf->timeout); - err |= __get_user(f->interleave_sect, &uf->interleave_sect); - err |= __copy_from_user(&f->max_errors, &uf->max_errors, sizeof(f->max_errors)); - err |= __get_user(f->flags, &uf->flags); - err |= __get_user(f->read_track, &uf->read_track); - err |= __copy_from_user(f->autodetect, uf->autodetect, sizeof(f->autodetect)); - err |= __get_user(f->checkfreq, &uf->checkfreq); - err |= __get_user(f->native_format, &uf->native_format); - if (err) { - err = -EFAULT; - goto out; - } - break; - } - case FDGETDRVSTAT32: - case FDPOLLDRVSTAT32: - karg = kmalloc(sizeof(struct floppy_drive_struct), GFP_KERNEL); - if (!karg) - return -ENOMEM; - break; - case FDGETFDCSTAT32: - karg = kmalloc(sizeof(struct floppy_fdc_state), GFP_KERNEL); - if (!karg) - return -ENOMEM; - break; - case FDWERRORGET32: - karg = kmalloc(sizeof(struct floppy_write_errors), GFP_KERNEL); - if (!karg) - return -ENOMEM; - break; - default: - return -EINVAL; - } - set_fs (KERNEL_DS); - err = sys_ioctl (fd, kcmd, (unsigned long)karg); - set_fs (old_fs); - if (err) - goto out; - switch (cmd) { - case FDGETPRM32: - { - struct floppy_struct *f = karg; - struct floppy_struct32 __user *uf = compat_ptr(arg); - - err = __put_user(f->size, &uf->size); - err |= __put_user(f->sect, &uf->sect); - err |= __put_user(f->head, &uf->head); - err |= __put_user(f->track, &uf->track); - err |= __put_user(f->stretch, &uf->stretch); - err |= __put_user(f->gap, &uf->gap); - err |= __put_user(f->rate, &uf->rate); - err |= __put_user(f->spec1, &uf->spec1); - err |= __put_user(f->fmt_gap, &uf->fmt_gap); - err |= __put_user((u64)f->name, (compat_caddr_t __user *)&uf->name); - break; - } - case FDGETDRVPRM32: - { - struct floppy_drive_params32 __user *uf; - struct floppy_drive_params *f = karg; - - uf = compat_ptr(arg); - err = __put_user(f->cmos, &uf->cmos); - err |= __put_user(f->max_dtr, &uf->max_dtr); - err |= __put_user(f->hlt, &uf->hlt); - err |= __put_user(f->hut, &uf->hut); - err |= __put_user(f->srt, &uf->srt); - err |= __put_user(f->spinup, &uf->spinup); - err |= __put_user(f->spindown, &uf->spindown); - err |= __put_user(f->spindown_offset, &uf->spindown_offset); - err |= __put_user(f->select_delay, &uf->select_delay); - err |= __put_user(f->rps, &uf->rps); - err |= __put_user(f->tracks, &uf->tracks); - err |= __put_user(f->timeout, &uf->timeout); - err |= __put_user(f->interleave_sect, &uf->interleave_sect); - err |= __copy_to_user(&uf->max_errors, &f->max_errors, sizeof(f->max_errors)); - err |= __put_user(f->flags, &uf->flags); - err |= __put_user(f->read_track, &uf->read_track); - err |= __copy_to_user(uf->autodetect, f->autodetect, sizeof(f->autodetect)); - err |= __put_user(f->checkfreq, &uf->checkfreq); - err |= __put_user(f->native_format, &uf->native_format); - break; - } - case FDGETDRVSTAT32: - case FDPOLLDRVSTAT32: - { - struct floppy_drive_struct32 __user *uf; - struct floppy_drive_struct *f = karg; - - uf = compat_ptr(arg); - err = __put_user(f->flags, &uf->flags); - err |= __put_user(f->spinup_date, &uf->spinup_date); - err |= __put_user(f->select_date, &uf->select_date); - err |= __put_user(f->first_read_date, &uf->first_read_date); - err |= __put_user(f->probed_format, &uf->probed_format); - err |= __put_user(f->track, &uf->track); - err |= __put_user(f->maxblock, &uf->maxblock); - err |= __put_user(f->maxtrack, &uf->maxtrack); - err |= __put_user(f->generation, &uf->generation); - err |= __put_user(f->keep_data, &uf->keep_data); - err |= __put_user(f->fd_ref, &uf->fd_ref); - err |= __put_user(f->fd_device, &uf->fd_device); - err |= __put_user(f->last_checked, &uf->last_checked); - err |= __put_user((u64)f->dmabuf, &uf->dmabuf); - err |= __put_user((u64)f->bufblocks, &uf->bufblocks); - break; - } - case FDGETFDCSTAT32: - { - struct floppy_fdc_state32 __user *uf; - struct floppy_fdc_state *f = karg; - - uf = compat_ptr(arg); - err = __put_user(f->spec1, &uf->spec1); - err |= __put_user(f->spec2, &uf->spec2); - err |= __put_user(f->dtr, &uf->dtr); - err |= __put_user(f->version, &uf->version); - err |= __put_user(f->dor, &uf->dor); - err |= __put_user(f->address, &uf->address); - err |= __copy_to_user((char __user *)&uf->address + sizeof(uf->address), - (char *)&f->address + sizeof(f->address), sizeof(int)); - err |= __put_user(f->driver_version, &uf->driver_version); - err |= __copy_to_user(uf->track, f->track, sizeof(f->track)); - break; - } - case FDWERRORGET32: - { - struct floppy_write_errors32 __user *uf; - struct floppy_write_errors *f = karg; - - uf = compat_ptr(arg); - err = __put_user(f->write_errors, &uf->write_errors); - err |= __put_user(f->first_error_sector, &uf->first_error_sector); - err |= __put_user(f->first_error_generation, &uf->first_error_generation); - err |= __put_user(f->last_error_sector, &uf->last_error_sector); - err |= __put_user(f->last_error_generation, &uf->last_error_generation); - err |= __put_user(f->badness, &uf->badness); - break; - } - default: - break; - } - if (err) - err = -EFAULT; - -out: - kfree(karg); - return err; -} -#endif - struct mtd_oob_buf32 { u_int32_t start; u_int32_t length; @@ -2506,60 +1965,6 @@ COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */ /* 0x00 */ COMPATIBLE_IOCTL(FIBMAP) COMPATIBLE_IOCTL(FIGETBSZ) -/* 0x03 -- HD/IDE ioctl's used by hdparm and friends. - * Some need translations, these do not. - */ -COMPATIBLE_IOCTL(HDIO_GET_IDENTITY) -COMPATIBLE_IOCTL(HDIO_DRIVE_TASK) -COMPATIBLE_IOCTL(HDIO_DRIVE_CMD) -ULONG_IOCTL(HDIO_SET_MULTCOUNT) -ULONG_IOCTL(HDIO_SET_UNMASKINTR) -ULONG_IOCTL(HDIO_SET_KEEPSETTINGS) -ULONG_IOCTL(HDIO_SET_32BIT) -ULONG_IOCTL(HDIO_SET_NOWERR) -ULONG_IOCTL(HDIO_SET_DMA) -ULONG_IOCTL(HDIO_SET_PIO_MODE) -ULONG_IOCTL(HDIO_SET_NICE) -ULONG_IOCTL(HDIO_SET_WCACHE) -ULONG_IOCTL(HDIO_SET_ACOUSTIC) -ULONG_IOCTL(HDIO_SET_BUSSTATE) -ULONG_IOCTL(HDIO_SET_ADDRESS) -COMPATIBLE_IOCTL(HDIO_SCAN_HWIF) -/* 0x330 is reserved -- it used to be HDIO_GETGEO_BIG */ -COMPATIBLE_IOCTL(0x330) -/* 0x02 -- Floppy ioctls */ -COMPATIBLE_IOCTL(FDMSGON) -COMPATIBLE_IOCTL(FDMSGOFF) -COMPATIBLE_IOCTL(FDSETEMSGTRESH) -COMPATIBLE_IOCTL(FDFLUSH) -COMPATIBLE_IOCTL(FDWERRORCLR) -COMPATIBLE_IOCTL(FDSETMAXERRS) -COMPATIBLE_IOCTL(FDGETMAXERRS) -COMPATIBLE_IOCTL(FDGETDRVTYP) -COMPATIBLE_IOCTL(FDEJECT) -COMPATIBLE_IOCTL(FDCLRPRM) -COMPATIBLE_IOCTL(FDFMTBEG) -COMPATIBLE_IOCTL(FDFMTEND) -COMPATIBLE_IOCTL(FDRESET) -COMPATIBLE_IOCTL(FDTWADDLE) -COMPATIBLE_IOCTL(FDFMTTRK) -COMPATIBLE_IOCTL(FDRAWCMD) -/* 0x12 */ -#ifdef CONFIG_BLOCK -COMPATIBLE_IOCTL(BLKRASET) -COMPATIBLE_IOCTL(BLKROSET) -COMPATIBLE_IOCTL(BLKROGET) -COMPATIBLE_IOCTL(BLKRRPART) -COMPATIBLE_IOCTL(BLKFLSBUF) -COMPATIBLE_IOCTL(BLKSECTSET) -COMPATIBLE_IOCTL(BLKSSZGET) -COMPATIBLE_IOCTL(BLKTRACESTART) -COMPATIBLE_IOCTL(BLKTRACESTOP) -COMPATIBLE_IOCTL(BLKTRACESETUP) -COMPATIBLE_IOCTL(BLKTRACETEARDOWN) -ULONG_IOCTL(BLKRASET) -ULONG_IOCTL(BLKFRASET) -#endif /* RAID */ COMPATIBLE_IOCTL(RAID_VERSION) COMPATIBLE_IOCTL(GET_ARRAY_INFO) @@ -2807,50 +2212,6 @@ COMPATIBLE_IOCTL(PPGETMODE) COMPATIBLE_IOCTL(PPGETPHASE) COMPATIBLE_IOCTL(PPGETFLAGS) COMPATIBLE_IOCTL(PPSETFLAGS) -/* CDROM stuff */ -COMPATIBLE_IOCTL(CDROMPAUSE) -COMPATIBLE_IOCTL(CDROMRESUME) -COMPATIBLE_IOCTL(CDROMPLAYMSF) -COMPATIBLE_IOCTL(CDROMPLAYTRKIND) -COMPATIBLE_IOCTL(CDROMREADTOCHDR) -COMPATIBLE_IOCTL(CDROMREADTOCENTRY) -COMPATIBLE_IOCTL(CDROMSTOP) -COMPATIBLE_IOCTL(CDROMSTART) -COMPATIBLE_IOCTL(CDROMEJECT) -COMPATIBLE_IOCTL(CDROMVOLCTRL) -COMPATIBLE_IOCTL(CDROMSUBCHNL) -ULONG_IOCTL(CDROMEJECT_SW) -COMPATIBLE_IOCTL(CDROMMULTISESSION) -COMPATIBLE_IOCTL(CDROM_GET_MCN) -COMPATIBLE_IOCTL(CDROMRESET) -COMPATIBLE_IOCTL(CDROMVOLREAD) -COMPATIBLE_IOCTL(CDROMSEEK) -COMPATIBLE_IOCTL(CDROMPLAYBLK) -COMPATIBLE_IOCTL(CDROMCLOSETRAY) -ULONG_IOCTL(CDROM_SET_OPTIONS) -ULONG_IOCTL(CDROM_CLEAR_OPTIONS) -ULONG_IOCTL(CDROM_SELECT_SPEED) -ULONG_IOCTL(CDROM_SELECT_DISC) -ULONG_IOCTL(CDROM_MEDIA_CHANGED) -ULONG_IOCTL(CDROM_DRIVE_STATUS) -COMPATIBLE_IOCTL(CDROM_DISC_STATUS) -COMPATIBLE_IOCTL(CDROM_CHANGER_NSLOTS) -ULONG_IOCTL(CDROM_LOCKDOOR) -ULONG_IOCTL(CDROM_DEBUG) -COMPATIBLE_IOCTL(CDROM_GET_CAPABILITY) -/* Ignore cdrom.h about these next 5 ioctls, they absolutely do - * not take a struct cdrom_read, instead they take a struct cdrom_msf - * which is compatible. - */ -COMPATIBLE_IOCTL(CDROMREADMODE2) -COMPATIBLE_IOCTL(CDROMREADMODE1) -COMPATIBLE_IOCTL(CDROMREADRAW) -COMPATIBLE_IOCTL(CDROMREADCOOKED) -COMPATIBLE_IOCTL(CDROMREADALL) -/* DVD ioctls */ -COMPATIBLE_IOCTL(DVD_READ_STRUCT) -COMPATIBLE_IOCTL(DVD_WRITE_STRUCT) -COMPATIBLE_IOCTL(DVD_AUTH) /* pktcdvd */ COMPATIBLE_IOCTL(PACKET_CTRL_CMD) /* Big A */ @@ -3336,33 +2697,6 @@ HANDLE_IOCTL(SIOCGSTAMP, do_siocgstamp) HANDLE_IOCTL(SIOCGSTAMPNS, do_siocgstampns) #endif #ifdef CONFIG_BLOCK -HANDLE_IOCTL(HDIO_GETGEO, hdio_getgeo) -HANDLE_IOCTL(BLKRAGET, w_long) -HANDLE_IOCTL(BLKGETSIZE, w_long) -HANDLE_IOCTL(0x1260, broken_blkgetsize) -HANDLE_IOCTL(BLKFRAGET, w_long) -HANDLE_IOCTL(BLKSECTGET, w_long) -HANDLE_IOCTL(BLKPG, blkpg_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_UNMASKINTR, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_MULTCOUNT, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_KEEPSETTINGS, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_32BIT, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_NOWERR, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_DMA, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_NICE, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_WCACHE, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_ACOUSTIC, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_ADDRESS, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_BUSSTATE, hdio_ioctl_trans) -HANDLE_IOCTL(FDSETPRM32, fd_ioctl_trans) -HANDLE_IOCTL(FDDEFPRM32, fd_ioctl_trans) -HANDLE_IOCTL(FDGETPRM32, fd_ioctl_trans) -HANDLE_IOCTL(FDSETDRVPRM32, fd_ioctl_trans) -HANDLE_IOCTL(FDGETDRVPRM32, fd_ioctl_trans) -HANDLE_IOCTL(FDGETDRVSTAT32, fd_ioctl_trans) -HANDLE_IOCTL(FDPOLLDRVSTAT32, fd_ioctl_trans) -HANDLE_IOCTL(FDGETFDCSTAT32, fd_ioctl_trans) -HANDLE_IOCTL(FDWERRORGET32, fd_ioctl_trans) HANDLE_IOCTL(SG_IO,sg_ioctl_trans) HANDLE_IOCTL(SG_GET_REQUEST_TABLE, sg_grt_trans) #endif @@ -3373,8 +2707,6 @@ HANDLE_IOCTL(PPPIOCSACTIVE32, ppp_sock_fprog_ioctl_trans) #ifdef CONFIG_BLOCK HANDLE_IOCTL(MTIOCGET32, mt_ioctl_trans) HANDLE_IOCTL(MTIOCPOS32, mt_ioctl_trans) -HANDLE_IOCTL(CDROMREADAUDIO, cdrom_ioctl_trans) -HANDLE_IOCTL(CDROM_SEND_PACKET, cdrom_ioctl_trans) #endif #define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93,0x64,unsigned int) HANDLE_IOCTL(AUTOFS_IOC_SETTIMEOUT32, ioc_settimeout) @@ -3415,9 +2747,6 @@ HANDLE_IOCTL(SONET_GETFRAMING, do_atm_ioctl) HANDLE_IOCTL(SONET_GETFRSENSE, do_atm_ioctl) /* block stuff */ #ifdef CONFIG_BLOCK -HANDLE_IOCTL(BLKBSZGET_32, do_blkbszget) -HANDLE_IOCTL(BLKBSZSET_32, do_blkbszset) -HANDLE_IOCTL(BLKGETSIZE64_32, do_blkgetsize64) /* Raw devices */ HANDLE_IOCTL(RAW_SETBIND, raw_ioctl) HANDLE_IOCTL(RAW_GETBIND, raw_ioctl) diff --git a/fs/direct-io.c b/fs/direct-io.c index 901dc55e9f54..b5928a7b6a5a 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -264,15 +264,12 @@ static int dio_bio_complete(struct dio *dio, struct bio *bio); /* * Asynchronous IO callback. */ -static int dio_bio_end_aio(struct bio *bio, unsigned int bytes_done, int error) +static void dio_bio_end_aio(struct bio *bio, int error) { struct dio *dio = bio->bi_private; unsigned long remaining; unsigned long flags; - if (bio->bi_size) - return 1; - /* cleanup the bio */ dio_bio_complete(dio, bio); @@ -287,8 +284,6 @@ static int dio_bio_end_aio(struct bio *bio, unsigned int bytes_done, int error) aio_complete(dio->iocb, ret, 0); kfree(dio); } - - return 0; } /* @@ -298,21 +293,17 @@ static int dio_bio_end_aio(struct bio *bio, unsigned int bytes_done, int error) * During I/O bi_private points at the dio. After I/O, bi_private is used to * implement a singly-linked list of completed BIOs, at dio->bio_list. */ -static int dio_bio_end_io(struct bio *bio, unsigned int bytes_done, int error) +static void dio_bio_end_io(struct bio *bio, int error) { struct dio *dio = bio->bi_private; unsigned long flags; - if (bio->bi_size) - return 1; - spin_lock_irqsave(&dio->bio_lock, flags); bio->bi_private = dio->bio_list; dio->bio_list = bio; if (--dio->refcount == 1 && dio->waiter) wake_up_process(dio->waiter); spin_unlock_irqrestore(&dio->bio_lock, flags); - return 0; } static int diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index a4b142a6a2c7..8d23b0b38717 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -14,6 +14,7 @@ */ #include <linux/kernel.h> +#include <linux/module.h> #include <linux/spinlock.h> #include <linux/sched.h> #include <linux/fs.h> diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c index f916b9740c75..2473e2a86d1b 100644 --- a/fs/gfs2/super.c +++ b/fs/gfs2/super.c @@ -160,11 +160,9 @@ int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb_host *sb, int silent) } -static int end_bio_io_page(struct bio *bio, unsigned int bytes_done, int error) +static void end_bio_io_page(struct bio *bio, int error) { struct page *page = bio->bi_private; - if (bio->bi_size) - return 1; if (!error) SetPageUptodate(page); diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c index de3e4a506dbc..57c3b8ac36bf 100644 --- a/fs/jfs/jfs_logmgr.c +++ b/fs/jfs/jfs_logmgr.c @@ -2200,16 +2200,13 @@ static int lbmIOWait(struct lbuf * bp, int flag) * * executed at INTIODONE level */ -static int lbmIODone(struct bio *bio, unsigned int bytes_done, int error) +static void lbmIODone(struct bio *bio, int error) { struct lbuf *bp = bio->bi_private; struct lbuf *nextbp, *tail; struct jfs_log *log; unsigned long flags; - if (bio->bi_size) - return 1; - /* * get back jfs buffer bound to the i/o buffer */ diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c index 62e96be02acf..1332adc0b9fa 100644 --- a/fs/jfs/jfs_metapage.c +++ b/fs/jfs/jfs_metapage.c @@ -280,14 +280,10 @@ static void last_read_complete(struct page *page) unlock_page(page); } -static int metapage_read_end_io(struct bio *bio, unsigned int bytes_done, - int err) +static void metapage_read_end_io(struct bio *bio, int err) { struct page *page = bio->bi_private; - if (bio->bi_size) - return 1; - if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) { printk(KERN_ERR "metapage_read_end_io: I/O error\n"); SetPageError(page); @@ -341,16 +337,12 @@ static void last_write_complete(struct page *page) end_page_writeback(page); } -static int metapage_write_end_io(struct bio *bio, unsigned int bytes_done, - int err) +static void metapage_write_end_io(struct bio *bio, int err) { struct page *page = bio->bi_private; BUG_ON(!PagePrivate(page)); - if (bio->bi_size) - return 1; - if (! test_bit(BIO_UPTODATE, &bio->bi_flags)) { printk(KERN_ERR "metapage_write_end_io: I/O error\n"); SetPageError(page); diff --git a/fs/mpage.c b/fs/mpage.c index c1698f2291aa..b1c3e5890508 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -39,14 +39,11 @@ * status of that page is hard. See end_buffer_async_read() for the details. * There is no point in duplicating all that complexity. */ -static int mpage_end_io_read(struct bio *bio, unsigned int bytes_done, int err) +static void mpage_end_io_read(struct bio *bio, int err) { const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1; - if (bio->bi_size) - return 1; - do { struct page *page = bvec->bv_page; @@ -62,17 +59,13 @@ static int mpage_end_io_read(struct bio *bio, unsigned int bytes_done, int err) unlock_page(page); } while (bvec >= bio->bi_io_vec); bio_put(bio); - return 0; } -static int mpage_end_io_write(struct bio *bio, unsigned int bytes_done, int err) +static void mpage_end_io_write(struct bio *bio, int err) { const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1; - if (bio->bi_size) - return 1; - do { struct page *page = bvec->bv_page; @@ -87,7 +80,6 @@ static int mpage_end_io_write(struct bio *bio, unsigned int bytes_done, int err) end_page_writeback(page); } while (bvec >= bio->bi_io_vec); bio_put(bio); - return 0; } static struct bio *mpage_bio_submit(int rw, struct bio *bio) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 2bd7f788cf34..da2c2b442b49 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -217,7 +217,6 @@ static void o2hb_wait_on_io(struct o2hb_region *reg, } static int o2hb_bio_end_io(struct bio *bio, - unsigned int bytes_done, int error) { struct o2hb_bio_wait_ctxt *wc = bio->bi_private; @@ -227,9 +226,6 @@ static int o2hb_bio_end_io(struct bio *bio, wc->wc_error = error; } - if (bio->bi_size) - return 1; - o2hb_bio_wait_dec(wc, 1); bio_put(bio); return 0; diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c index 5f152f60d74d..3f13519436af 100644 --- a/fs/xfs/linux-2.6/xfs_aops.c +++ b/fs/xfs/linux-2.6/xfs_aops.c @@ -326,14 +326,10 @@ xfs_iomap_valid( STATIC int xfs_end_bio( struct bio *bio, - unsigned int bytes_done, int error) { xfs_ioend_t *ioend = bio->bi_private; - if (bio->bi_size) - return 1; - ASSERT(atomic_read(&bio->bi_cnt) >= 1); ioend->io_error = test_bit(BIO_UPTODATE, &bio->bi_flags) ? 0 : error; diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c index b0f0e58866de..6a75f4d984a1 100644 --- a/fs/xfs/linux-2.6/xfs_buf.c +++ b/fs/xfs/linux-2.6/xfs_buf.c @@ -1106,16 +1106,12 @@ _xfs_buf_ioend( STATIC int xfs_buf_bio_end_io( struct bio *bio, - unsigned int bytes_done, int error) { xfs_buf_t *bp = (xfs_buf_t *)bio->bi_private; unsigned int blocksize = bp->b_target->bt_bsize; struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1; - if (bio->bi_size) - return 1; - if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) bp->b_error = EIO; diff --git a/include/linux/bio.h b/include/linux/bio.h index 1ddef34f43c3..089a8bc55dd4 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -64,7 +64,7 @@ struct bio_vec { struct bio_set; struct bio; -typedef int (bio_end_io_t) (struct bio *, unsigned int, int); +typedef void (bio_end_io_t) (struct bio *, int); typedef void (bio_destructor_t) (struct bio *); /* @@ -226,7 +226,7 @@ struct bio { #define BIO_SEG_BOUNDARY(q, b1, b2) \ BIOVEC_SEG_BOUNDARY((q), __BVEC_END((b1)), __BVEC_START((b2))) -#define bio_io_error(bio, bytes) bio_endio((bio), (bytes), -EIO) +#define bio_io_error(bio) bio_endio((bio), -EIO) /* * drivers should not use the __ version unless they _really_ want to @@ -286,7 +286,7 @@ extern struct bio *bio_alloc_bioset(gfp_t, int, struct bio_set *); extern void bio_put(struct bio *); extern void bio_free(struct bio *, struct bio_set *); -extern void bio_endio(struct bio *, unsigned int, int); +extern void bio_endio(struct bio *, int); struct request_queue; extern int bio_phys_segments(struct request_queue *, struct bio *); extern int bio_hw_segments(struct request_queue *, struct bio *); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index b126c6f68e27..95be0ac57e76 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1,6 +1,8 @@ #ifndef _LINUX_BLKDEV_H #define _LINUX_BLKDEV_H +#ifdef CONFIG_BLOCK + #include <linux/sched.h> #include <linux/major.h> #include <linux/genhd.h> @@ -32,8 +34,6 @@ ) #endif -#ifdef CONFIG_BLOCK - struct scsi_ioctl_command; struct request_queue; @@ -471,7 +471,6 @@ struct request_queue int orderr, ordcolor; struct request pre_flush_rq, bar_rq, post_flush_rq; struct request *orig_bar_rq; - unsigned int bi_size; struct mutex sysfs_lock; @@ -637,10 +636,23 @@ static inline void blk_queue_bounce(struct request_queue *q, struct bio **bio) } #endif /* CONFIG_MMU */ -#define rq_for_each_bio(_bio, rq) \ +struct req_iterator { + int i; + struct bio *bio; +}; + +/* This should not be used directly - use rq_for_each_segment */ +#define __rq_for_each_bio(_bio, rq) \ if ((rq->bio)) \ for (_bio = (rq)->bio; _bio; _bio = _bio->bi_next) +#define rq_for_each_segment(bvl, _rq, _iter) \ + __rq_for_each_bio(_iter.bio, _rq) \ + bio_for_each_segment(bvl, _iter.bio, _iter.i) + +#define rq_iter_last(rq, _iter) \ + (_iter.bio->bi_next == NULL && _iter.i == _iter.bio->bi_vcnt-1) + extern int blk_register_queue(struct gendisk *disk); extern void blk_unregister_queue(struct gendisk *disk); extern void register_disk(struct gendisk *dev); @@ -662,8 +674,8 @@ extern int sg_scsi_ioctl(struct file *, struct request_queue *, /* * Temporary export, until SCSI gets fixed up. */ -extern int ll_back_merge_fn(struct request_queue *, struct request *, - struct bio *); +extern int blk_rq_append_bio(struct request_queue *q, struct request *rq, + struct bio *bio); /* * A queue has just exitted congestion. Note this in the global counter of @@ -810,7 +822,6 @@ static inline struct request *blk_map_queue_find_tag(struct blk_queue_tag *bqt, return bqt->tag_index[tag]; } -extern void blk_rq_bio_prep(struct request_queue *, struct request *, struct bio *); extern int blkdev_issue_flush(struct block_device *, sector_t *); #define MAX_PHYS_SEGMENTS 128 diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h index 7b5d56b82b59..2e105a12fe29 100644 --- a/include/linux/blktrace_api.h +++ b/include/linux/blktrace_api.h @@ -142,10 +142,14 @@ struct blk_user_trace_setup { u32 pid; }; +#ifdef __KERNEL__ #if defined(CONFIG_BLK_DEV_IO_TRACE) extern int blk_trace_ioctl(struct block_device *, unsigned, char __user *); extern void blk_trace_shutdown(struct request_queue *); extern void __blk_add_trace(struct blk_trace *, sector_t, int, int, u32, int, int, void *); +extern int do_blk_trace_setup(struct request_queue *q, + struct block_device *bdev, struct blk_user_trace_setup *buts); + /** * blk_add_trace_rq - Add a trace for a request oriented action @@ -286,6 +290,12 @@ static inline void blk_add_trace_remap(struct request_queue *q, struct bio *bio, #define blk_add_trace_generic(q, rq, rw, what) do { } while (0) #define blk_add_trace_pdu_int(q, what, bio, pdu) do { } while (0) #define blk_add_trace_remap(q, bio, dev, f, t) do {} while (0) +static inline int do_blk_trace_setup(struct request_queue *q, + struct block_device *bdev, + struct blk_user_trace_setup *buts) +{ + return 0; +} #endif /* CONFIG_BLK_DEV_IO_TRACE */ - +#endif /* __KERNEL__ */ #endif diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index c8636bb3e3a7..cfee06bca2d3 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1738,6 +1738,11 @@ #define PCI_VENDOR_ID_RADISYS 0x1331 +#define PCI_VENDOR_ID_MICRO_MEMORY 0x1332 +#define PCI_DEVICE_ID_MICRO_MEMORY_5415CN 0x5415 +#define PCI_DEVICE_ID_MICRO_MEMORY_5425CN 0x5425 +#define PCI_DEVICE_ID_MICRO_MEMORY_6155 0x6155 + #define PCI_VENDOR_ID_DOMEX 0x134a #define PCI_DEVICE_ID_DOMEX_DMX3191D 0x0001 diff --git a/include/linux/swap.h b/include/linux/swap.h index 665f85f2a3af..edf681a7fd8f 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -221,7 +221,7 @@ extern void swap_unplug_io_fn(struct backing_dev_info *, struct page *); /* linux/mm/page_io.c */ extern int swap_readpage(struct file *, struct page *); extern int swap_writepage(struct page *page, struct writeback_control *wbc); -extern int end_swap_bio_read(struct bio *bio, unsigned int bytes_done, int err); +extern void end_swap_bio_read(struct bio *bio, int err); /* linux/mm/swap_state.c */ extern struct address_space swapper_space; diff --git a/include/linux/writeback.h b/include/linux/writeback.h index b4af6bcb7b7a..c7c3337c3a88 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -5,6 +5,7 @@ #define WRITEBACK_H #include <linux/sched.h> +#include <linux/fs.h> struct backing_dev_info; diff --git a/kernel/sched.c b/kernel/sched.c index 6107a0cd6325..6c10fa796ca0 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -61,6 +61,7 @@ #include <linux/delayacct.h> #include <linux/reciprocal_div.h> #include <linux/unistd.h> +#include <linux/pagemap.h> #include <asm/tlb.h> diff --git a/mm/bounce.c b/mm/bounce.c index 179fe38a2416..3b549bf31f7d 100644 --- a/mm/bounce.c +++ b/mm/bounce.c @@ -140,26 +140,19 @@ static void bounce_end_io(struct bio *bio, mempool_t *pool, int err) mempool_free(bvec->bv_page, pool); } - bio_endio(bio_orig, bio_orig->bi_size, err); + bio_endio(bio_orig, err); bio_put(bio); } -static int bounce_end_io_write(struct bio *bio, unsigned int bytes_done, int err) +static void bounce_end_io_write(struct bio *bio, int err) { - if (bio->bi_size) - return 1; - bounce_end_io(bio, page_pool, err); - return 0; } -static int bounce_end_io_write_isa(struct bio *bio, unsigned int bytes_done, int err) +static void bounce_end_io_write_isa(struct bio *bio, int err) { - if (bio->bi_size) - return 1; bounce_end_io(bio, isa_page_pool, err); - return 0; } static void __bounce_end_io_read(struct bio *bio, mempool_t *pool, int err) @@ -172,22 +165,14 @@ static void __bounce_end_io_read(struct bio *bio, mempool_t *pool, int err) bounce_end_io(bio, pool, err); } -static int bounce_end_io_read(struct bio *bio, unsigned int bytes_done, int err) +static void bounce_end_io_read(struct bio *bio, int err) { - if (bio->bi_size) - return 1; - __bounce_end_io_read(bio, page_pool, err); - return 0; } -static int bounce_end_io_read_isa(struct bio *bio, unsigned int bytes_done, int err) +static void bounce_end_io_read_isa(struct bio *bio, int err) { - if (bio->bi_size) - return 1; - __bounce_end_io_read(bio, isa_page_pool, err); - return 0; } static void __blk_queue_bounce(struct request_queue *q, struct bio **bio_orig, diff --git a/mm/page_io.c b/mm/page_io.c index dbffec0d78c9..3b97f6850273 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -44,14 +44,11 @@ static struct bio *get_swap_bio(gfp_t gfp_flags, pgoff_t index, return bio; } -static int end_swap_bio_write(struct bio *bio, unsigned int bytes_done, int err) +static void end_swap_bio_write(struct bio *bio, int err) { const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); struct page *page = bio->bi_io_vec[0].bv_page; - if (bio->bi_size) - return 1; - if (!uptodate) { SetPageError(page); /* @@ -71,17 +68,13 @@ static int end_swap_bio_write(struct bio *bio, unsigned int bytes_done, int err) } end_page_writeback(page); bio_put(bio); - return 0; } -int end_swap_bio_read(struct bio *bio, unsigned int bytes_done, int err) +void end_swap_bio_read(struct bio *bio, int err) { const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); struct page *page = bio->bi_io_vec[0].bv_page; - if (bio->bi_size) - return 1; - if (!uptodate) { SetPageError(page); ClearPageUptodate(page); @@ -94,7 +87,6 @@ int end_swap_bio_read(struct bio *bio, unsigned int bytes_done, int err) } unlock_page(page); bio_put(bio); - return 0; } /* diff --git a/mm/readahead.c b/mm/readahead.c index 39bf45d43320..be20c9d699d3 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -15,6 +15,7 @@ #include <linux/backing-dev.h> #include <linux/task_io_accounting_ops.h> #include <linux/pagevec.h> +#include <linux/pagemap.h> void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page) { |