diff options
| -rw-r--r-- | Documentation/feature-removal-schedule.txt | 10 | ||||
| -rw-r--r-- | drivers/isdn/capi/Kconfig | 15 | ||||
| -rw-r--r-- | drivers/isdn/capi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/isdn/capi/capi.c | 24 | ||||
| -rw-r--r-- | drivers/isdn/capi/capifs.c | 239 | ||||
| -rw-r--r-- | drivers/isdn/capi/capifs.h | 28 |
6 files changed, 4 insertions, 313 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 274b32d12532..e38ccae81710 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -425,16 +425,6 @@ Who: anybody or Florian Mickler <florian@mickler.org> ---------------------------- -What: capifs -When: February 2011 -Files: drivers/isdn/capi/capifs.* -Why: udev fully replaces this special file system that only contains CAPI - NCCI TTY device nodes. User space (pppdcapiplugin) works without - noticing the difference. -Who: Jan Kiszka <jan.kiszka@web.de> - ----------------------------- - What: KVM paravirt mmu host support When: January 2011 Why: The paravirt mmu host support is slower than non-paravirt mmu, both diff --git a/drivers/isdn/capi/Kconfig b/drivers/isdn/capi/Kconfig index a168e8a891be..15c3ffd9d860 100644 --- a/drivers/isdn/capi/Kconfig +++ b/drivers/isdn/capi/Kconfig @@ -33,21 +33,6 @@ config ISDN_CAPI_CAPI20 standardized libcapi20 to access this functionality. You should say Y/M here. -config ISDN_CAPI_CAPIFS_BOOL - bool "CAPI2.0 filesystem support (DEPRECATED)" - depends on ISDN_CAPI_MIDDLEWARE && ISDN_CAPI_CAPI20 - help - This option provides a special file system, similar to /dev/pts with - device nodes for the special ttys established by using the - middleware extension above. - You no longer need this, udev fully replaces it. This feature is - scheduled for removal. - -config ISDN_CAPI_CAPIFS - tristate - depends on ISDN_CAPI_CAPIFS_BOOL - default ISDN_CAPI_CAPI20 - config ISDN_CAPI_CAPIDRV tristate "CAPI2.0 capidrv interface support" depends on ISDN_I4L diff --git a/drivers/isdn/capi/Makefile b/drivers/isdn/capi/Makefile index 57123e3e4978..4d5b4b71db1e 100644 --- a/drivers/isdn/capi/Makefile +++ b/drivers/isdn/capi/Makefile @@ -7,7 +7,6 @@ obj-$(CONFIG_ISDN_CAPI) += kernelcapi.o obj-$(CONFIG_ISDN_CAPI_CAPI20) += capi.o obj-$(CONFIG_ISDN_CAPI_CAPIDRV) += capidrv.o -obj-$(CONFIG_ISDN_CAPI_CAPIFS) += capifs.o # Multipart objects. diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 0d7088367038..bea100983336 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -38,8 +38,6 @@ #include <linux/isdn/capiutil.h> #include <linux/isdn/capicmd.h> -#include "capifs.h" - MODULE_DESCRIPTION("CAPI4Linux: Userspace /dev/capi20 interface"); MODULE_AUTHOR("Carsten Paeth"); MODULE_LICENSE("GPL"); @@ -85,7 +83,6 @@ struct capiminor { struct kref kref; unsigned int minor; - struct dentry *capifs_dentry; struct capi20_appl *ap; u32 ncci; @@ -300,17 +297,8 @@ static void capiminor_free(struct capiminor *mp) static void capincci_alloc_minor(struct capidev *cdev, struct capincci *np) { - struct capiminor *mp; - dev_t device; - - if (!(cdev->userflags & CAPIFLAG_HIGHJACKING)) - return; - - mp = np->minorp = capiminor_alloc(&cdev->ap, np->ncci); - if (mp) { - device = MKDEV(capinc_tty_driver->major, mp->minor); - mp->capifs_dentry = capifs_new_ncci(mp->minor, device); - } + if (cdev->userflags & CAPIFLAG_HIGHJACKING) + np->minorp = capiminor_alloc(&cdev->ap, np->ncci); } static void capincci_free_minor(struct capincci *np) @@ -319,8 +307,6 @@ static void capincci_free_minor(struct capincci *np) struct tty_struct *tty; if (mp) { - capifs_free_ncci(mp->capifs_dentry); - tty = tty_port_tty_get(&mp->port); if (tty) { tty_vhangup(tty); @@ -1514,10 +1500,8 @@ static int __init capi_init(void) proc_init(); -#if defined(CONFIG_ISDN_CAPI_CAPIFS) || defined(CONFIG_ISDN_CAPI_CAPIFS_MODULE) - compileinfo = " (middleware+capifs)"; -#elif defined(CONFIG_ISDN_CAPI_MIDDLEWARE) - compileinfo = " (no capifs)"; +#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE + compileinfo = " (middleware)"; #else compileinfo = " (no middleware)"; #endif diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c deleted file mode 100644 index b4faed7fe0d3..000000000000 --- a/drivers/isdn/capi/capifs.c +++ /dev/null @@ -1,239 +0,0 @@ -/* $Id: capifs.c,v 1.1.2.3 2004/01/16 21:09:26 keil Exp $ - * - * Copyright 2000 by Carsten Paeth <calle@calle.de> - * - * Heavily based on devpts filesystem from H. Peter Anvin - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - * - */ - -#include <linux/fs.h> -#include <linux/mount.h> -#include <linux/slab.h> -#include <linux/namei.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/ctype.h> -#include <linux/sched.h> /* current */ - -#include "capifs.h" - -MODULE_DESCRIPTION("CAPI4Linux: /dev/capi/ filesystem"); -MODULE_AUTHOR("Carsten Paeth"); -MODULE_LICENSE("GPL"); - -/* ------------------------------------------------------------------ */ - -#define CAPIFS_SUPER_MAGIC (('C'<<8)|'N') - -static struct vfsmount *capifs_mnt; -static int capifs_mnt_count; - -static struct { - int setuid; - int setgid; - uid_t uid; - gid_t gid; - umode_t mode; -} config = {.mode = 0600}; - -/* ------------------------------------------------------------------ */ - -static int capifs_remount(struct super_block *s, int *flags, char *data) -{ - int setuid = 0; - int setgid = 0; - uid_t uid = 0; - gid_t gid = 0; - umode_t mode = 0600; - char *this_char; - char *new_opt = kstrdup(data, GFP_KERNEL); - - this_char = NULL; - while ((this_char = strsep(&data, ",")) != NULL) { - int n; - char dummy; - if (!*this_char) - continue; - if (sscanf(this_char, "uid=%i%c", &n, &dummy) == 1) { - setuid = 1; - uid = n; - } else if (sscanf(this_char, "gid=%i%c", &n, &dummy) == 1) { - setgid = 1; - gid = n; - } else if (sscanf(this_char, "mode=%o%c", &n, &dummy) == 1) - mode = n & ~S_IFMT; - else { - kfree(new_opt); - printk("capifs: called with bogus options\n"); - return -EINVAL; - } - } - - mutex_lock(&s->s_root->d_inode->i_mutex); - - replace_mount_options(s, new_opt); - config.setuid = setuid; - config.setgid = setgid; - config.uid = uid; - config.gid = gid; - config.mode = mode; - - mutex_unlock(&s->s_root->d_inode->i_mutex); - - return 0; -} - -static const struct super_operations capifs_sops = -{ - .statfs = simple_statfs, - .remount_fs = capifs_remount, - .show_options = generic_show_options, -}; - - -static int -capifs_fill_super(struct super_block *s, void *data, int silent) -{ - struct inode * inode; - - s->s_blocksize = 1024; - s->s_blocksize_bits = 10; - s->s_magic = CAPIFS_SUPER_MAGIC; - s->s_op = &capifs_sops; - s->s_time_gran = 1; - - inode = new_inode(s); - if (!inode) - goto fail; - inode->i_ino = 1; - inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; - inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; - inode->i_op = &simple_dir_inode_operations; - inode->i_fop = &simple_dir_operations; - inode->i_nlink = 2; - - s->s_root = d_alloc_root(inode); - if (s->s_root) - return 0; - - printk("capifs: get root dentry failed\n"); - iput(inode); -fail: - return -ENOMEM; -} - -static struct dentry *capifs_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) -{ - return mount_single(fs_type, flags, data, capifs_fill_super); -} - -static struct file_system_type capifs_fs_type = { - .owner = THIS_MODULE, - .name = "capifs", - .mount = capifs_mount, - .kill_sb = kill_anon_super, -}; - -static struct dentry *new_ncci(unsigned int number, dev_t device) -{ - struct super_block *s = capifs_mnt->mnt_sb; - struct dentry *root = s->s_root; - struct dentry *dentry; - struct inode *inode; - char name[10]; - int namelen; - - mutex_lock(&root->d_inode->i_mutex); - - namelen = sprintf(name, "%d", number); - dentry = lookup_one_len(name, root, namelen); - if (IS_ERR(dentry)) { - dentry = NULL; - goto unlock_out; - } - - if (dentry->d_inode) { - dput(dentry); - dentry = NULL; - goto unlock_out; - } - - inode = new_inode(s); - if (!inode) { - dput(dentry); - dentry = NULL; - goto unlock_out; - } - - /* config contents is protected by root's i_mutex */ - inode->i_uid = config.setuid ? config.uid : current_fsuid(); - inode->i_gid = config.setgid ? config.gid : current_fsgid(); - inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; - inode->i_ino = number + 2; - init_special_inode(inode, S_IFCHR|config.mode, device); - - d_instantiate(dentry, inode); - dget(dentry); - -unlock_out: - mutex_unlock(&root->d_inode->i_mutex); - - return dentry; -} - -struct dentry *capifs_new_ncci(unsigned int number, dev_t device) -{ - struct dentry *dentry; - - if (simple_pin_fs(&capifs_fs_type, &capifs_mnt, &capifs_mnt_count) < 0) - return NULL; - - dentry = new_ncci(number, device); - if (!dentry) - simple_release_fs(&capifs_mnt, &capifs_mnt_count); - - return dentry; -} - -void capifs_free_ncci(struct dentry *dentry) -{ - struct dentry *root = capifs_mnt->mnt_sb->s_root; - struct inode *inode; - - if (!dentry) - return; - - mutex_lock(&root->d_inode->i_mutex); - - inode = dentry->d_inode; - if (inode) { - drop_nlink(inode); - d_delete(dentry); - dput(dentry); - } - dput(dentry); - - mutex_unlock(&root->d_inode->i_mutex); - - simple_release_fs(&capifs_mnt, &capifs_mnt_count); -} - -static int __init capifs_init(void) -{ - return register_filesystem(&capifs_fs_type); -} - -static void __exit capifs_exit(void) -{ - unregister_filesystem(&capifs_fs_type); -} - -EXPORT_SYMBOL(capifs_new_ncci); -EXPORT_SYMBOL(capifs_free_ncci); - -module_init(capifs_init); -module_exit(capifs_exit); diff --git a/drivers/isdn/capi/capifs.h b/drivers/isdn/capi/capifs.h deleted file mode 100644 index e193d1189531..000000000000 --- a/drivers/isdn/capi/capifs.h +++ /dev/null @@ -1,28 +0,0 @@ -/* $Id: capifs.h,v 1.1.2.2 2004/01/16 21:09:26 keil Exp $ - * - * Copyright 2000 by Carsten Paeth <calle@calle.de> - * - * This software may be used and distributed according to the terms - * of the GNU General Public License, incorporated herein by reference. - * - */ - -#include <linux/dcache.h> - -#if defined(CONFIG_ISDN_CAPI_CAPIFS) || defined(CONFIG_ISDN_CAPI_CAPIFS_MODULE) - -struct dentry *capifs_new_ncci(unsigned int num, dev_t device); -void capifs_free_ncci(struct dentry *dentry); - -#else - -static inline struct dentry *capifs_new_ncci(unsigned int num, dev_t device) -{ - return NULL; -} - -static inline void capifs_free_ncci(struct dentry *dentry) -{ -} - -#endif |