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2008-10-15Merge commit 'origin'Benjamin Herrenschmidt20-203/+280
Manual fixup of conflicts on: arch/powerpc/include/asm/dcr-regs.h drivers/net/ibm_newemac/core.h
2008-10-14m68k: Remove the broken Hades supportAdrian Bunk1-4/+0
This patch removes the Hades support that was marked as BROKEN 5 years ago. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-12Merge branch 'x86-core-v2-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip This merges in: x86/build, x86/microcode, x86/spinlocks, x86/memory-corruption-check, x86/early-printk, x86/xsave, x86/quirks, x86/setup, x86/signal, core/signal, x86/urgent, x86/xen * 'x86-core-v2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (142 commits) x86: make processor type select depend on CONFIG_EMBEDDED x86: extend processor type select help text x86, amd-iommu: propagate PCI device enabling error warnings: fix arch/x86/kernel/io_apic_64.c warnings: fix arch/x86/kernel/early_printk.c x86, fpu: check __clear_user() return value x86: memory corruption check - cleanup x86: ioperm user_regset xen: do not reserve 2 pages of padding between hypervisor and fixmap. xen: use spin_lock_nest_lock when pinning a pagetable x86: xsave: set FP, SSE bits in the xsave header in the user sigcontext x86: xsave: fix error condition in save_i387_xstate() x86: SB450: deprioritize DMI quirks x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC x86: replace a magic number with a named constant in the VESA boot code x86 setup: remove IMAGE_OFFSET x86 setup: remove DEF_INITSEG and DEF_SETUPSEG Revert "x86: fix ghost EDD devices in /sys again" x86 setup: fix ghost entries under /sys/firmware/edd take 3 x86: signal: remove indent in restore_sigcontext() ...
2008-10-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6Linus Torvalds1-2/+2
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6: (180 commits) leo: disable cursor when leaving graphics mode cg6: disable cursor when leaving graphics mode sparc32: sun4m interrupt mask cleanup drivers/rtc/Kconfig: don't build rtc-cmos.o on sparc32 sparc: arch/sparc/kernel/pmc.c -- extra #include? sparc32: Add more extensive documentation of sun4m interrupts. sparc32: Kill irq_rcvreg from sun4m_irq.c sparc32: Delete master_l10_limit. sparc32: Use PROM device probing for sun4c timers. sparc32: Use PROM device probing for sun4c interrupt register. sparc32: Delete claim_ticker14(). sparc32: Stop calling claim_ticker14() from sun4c_irq.c sparc32: Kill clear_profile_irq btfixup entry. sparc32: Call sun4m_clear_profile_irq() directly from sun4m_smp.c sparc32: Remove #if 0'd code from sun4c_irq.c sparc32: Remove some SMP ifdefs in sun4d_irq.c sparc32: Use PROM infrastructure for probing and mapping sun4d timers. sparc32: Use PROM device probing for sun4m irq registers. sparc32: Use PROM device probing for sun4m timer registers. sparc: Fix user_regset 'n' field values. ...
2008-10-12Merge branch 'linus' into x86/xenIngo Molnar18-196/+277
Conflicts: arch/x86/kernel/cpu/common.c arch/x86/kernel/process_64.c arch/x86/xen/enlighten.c
2008-10-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds1-4/+5
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (71 commits) ide: Remove ide_spin_wait_hwgroup() and use special requests instead ide: move IDE{FLOPPY,TAPE}_WAIT_CMD defines to <linux/ide.h> ide: add ide_do_test_unit_ready() helper ide: add ide_do_start_stop() helper ide: add ide_set_media_lock() helper ide-floppy: move floppy ioctls handling to ide-floppy_ioctl.c ide-floppy: ->{srfp,wp} -> IDE_AFLAG_{SRFP,WP} ide: add ide_queue_pc_tail() helper ide: add ide_queue_pc_head() helper ide: add ide_init_pc() helper ide-tape: add ide_tape_set_media_lock() helper ide-floppy: add ide_floppy_set_media_lock() helper ide: add ide_io_buffers() helper ide-scsi: cleanup ide_scsi_io_buffers() ide-floppy: remove MODE_SENSE_* defines ide-{floppy,tape}: remove packet command stack ide-{floppy,tape}: remove request stack ide-generic: handle probing of legacy io-ports v5 ide-floppy: use scatterlists for pio transfers ide-tape: remove idetape_init_rq() ...
2008-10-11Merge branch 'master' of ↵David S. Miller17-192/+272
master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: sound/core/memalloc.c
2008-10-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds7-75/+57
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1075 commits) myri10ge: update driver version number to 1.4.3-1.369 r8169: add shutdown handler r8169: preliminary 8168d support r8169: support additional 8168cp chipset r8169: change default behavior for mildly identified 8168c chipsets r8169: add a new 8168cp flavor r8169: add a new 8168c flavor (bis) r8169: add a new 8168c flavor r8169: sync existing 8168 device hardware start sequences with vendor driver r8169: 8168b Tx performance tweak r8169: make room for more specific 8168 hardware start procedure r8169: shuffle some registers handling around (8168 operation only) r8169: new phy init parameters for the 8168b r8169: update phy init parameters r8169: wake up the PHY of the 8168 af_key: fix SADB_X_SPDDELETE response ath9k: Fix return code when ath9k_hw_setpower() fails on reset ath9k: remove nasty FAIL macro from ath9k_hw_reset() gre: minor cleanups in netlink interface gre: fix copy and paste error ...
2008-10-10hd: WIN_* -> ATA_CMD_*Bartlomiej Zolnierkiewicz1-4/+5
* Use ATA_CMD_* defines instead of WIN_* ones. * Include <linux/ata.h> directly instead of through <linux/hdreg.h>. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-10-09block: mark bio_split_pool staticDenis ChengRq1-1/+1
Since all bio_split calls refer the same single bio_split_pool, the bio_split function can use bio_split_pool directly instead of the mempool_t parameter; then the mempool_t parameter can be removed from bio_split param list, and bio_split_pool is only referred in fs/bio.c file, can be marked static. Signed-off-by: Denis ChengRq <crquan@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09virtio_blk: change to use __blk_end_request()Kiyoshi Ueda1-5/+5
This patch converts virtio_blk to use __blk_end_request() directly so that end_{queued|dequeued}_request() can be removed. Related 'uptodate' argument is converted to 'error'. Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09floppy: support arbitrary first-sector numbersKeith Wansbrough1-8/+15
The current floppy_struct allows floppies to number sectors starting from 0 or 1. This patch allows arbitrary first-sector numbers - for example, 0xC1 for Amstrad CPC disks. This extends the existing 1-bit field (FD_ZEROBASED, bit 2 of stretch) to 8 bits (FD_SECTMASK, bits 2 to 9). Currently 0x00 denotes a first sector number of 1, and 0x01 denotes a first sector number of 0. We extend this by interpreting FD_SECTMASK as the first sector number with the LSB flipped. Signed-off-by: Keith Wansbrough <keith@lochan.org> Cc: Alain Knaff <alain@linux.lu> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Karel Zak <kzak@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09drivers/block: Use DIV_ROUND_UPJulia Lawall3-9/+9
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. An extract of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ #include <linux/kernel.h> @depends on haskernel@ expression n,d; @@ ( - (n + d - 1) / d + DIV_ROUND_UP(n,d) | - (n + (d - 1)) / d + DIV_ROUND_UP(n,d) ) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP((n),d) + DIV_ROUND_UP(n,d) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP(n,(d)) + DIV_ROUND_UP(n,d) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: <mike.miller@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09cciss: Fix cciss SCSI rescan code to better notice device changesscameron@beardog.cca.cpqcorp.net2-53/+102
Fix cciss SCSI rescan code to better notice device changes. If you hot-unplug a tape drive, then hot-plug a different tape drive into the same slot in a storage enclosure, the cciss driver wouldn't notice anything had changed, as it was only looking at the LUN address and device type. Now it looks at the inquiry page 0x83 device identifier, and vendor and model strings as well. Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: Expand Xen blkfront for > 16 xvdChris Lalancette1-21/+55
Until recently, the maximum number of xvd block devices you could attach to a Xen domU was 16. This limitation turned out to be problematic for some users, so it was expanded to handle a much larger number of disks. However, this requires a couple of changes in the way that blkfront scans for disks. This functionality is already present in the Xen linux-2.6.18-xen.hg tree; the attached patch adds this functionality to the mainline xen-blkfront implementation. I successfully tested it on a 2.6.25 tree, and build tested it on 2.6.27-rc3. Signed-off-by: Chris Lalancette <clalance@redhat.com> Acked-by: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: move stats from disk to part0Tejun Heo1-6/+6
Move stats related fields - stamp, in_flight, dkstats - from disk to part0 and unify stat handling such that... * part_stat_*() now updates part0 together if the specified partition is not part0. ie. part_stat_*() are now essentially all_stat_*(). * {disk|all}_stat_*() are gone. * part_round_stats() is updated similary. It handles part0 stats automatically and disk_round_stats() is killed. * part_{inc|dec}_in_fligh() is implemented which automatically updates part0 stats for parts other than part0. * disk_map_sector_rcu() is updated to return part0 if no part matches. Combined with the above changes, this makes NULL special case handling in callers unnecessary. * Separate stats show code paths for disk are collapsed into part stats show code paths. * Rename disk_stat_lock/unlock() to part_stat_lock/unlock() While at it, reposition stat handling macros a bit and add missing parentheses around macro parameters. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: move capacity from disk to part0Tejun Heo3-4/+4
Move disk->capacity to part0->nr_sects and convert all users who directly accessed the field to use {get|set}_capacity(). This is done early to allow the __dev field to be moved. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: implement and use {disk|part}_to_dev()Tejun Heo2-4/+4
Implement {disk|part}_to_dev() and use them to access generic device instead of directly dereferencing {disk|part}->dev. To make sure no user is left behind, rename generic devices fields to __dev. This is in preparation of unifying partition 0 handling with other partitions. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: fix diskstats accessTejun Heo1-7/+8
There are two variants of stat functions - ones prefixed with double underbars which don't care about preemption and ones without which disable preemption before manipulating per-cpu counters. It's unclear whether the underbarred ones assume that preemtion is disabled on entry as some callers don't do that. This patch unifies diskstats access by implementing disk_stat_lock() and disk_stat_unlock() which take care of both RCU (for partition access) and preemption (for per-cpu counter access). diskstats access should always be enclosed between the two functions. As such, there's no need for the versions which disables preemption. They're removed and double underbars ones are renamed to drop the underbars. As an extra argument is added, there's no danger of using the old version unconverted. disk_stat_lock() uses get_cpu() and returns the cpu index and all diskstat functions which access per-cpu counters now has @cpu argument to help RT. This change adds RCU or preemption operations at some places but also collapses several preemption ops into one at others. Overall, the performance difference should be negligible as all involved ops are very lightweight per-cpu ones. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: fix disk->part[] dereferencing raceTejun Heo1-1/+5
disk->part[] is protected by its matching bdev's lock. However, non-critical accesses like collecting stats and printing out sysfs and proc information used to be performed without any locking. As partitions can come and go dynamically, partitions can go away underneath those non-critical accesses. As some of those accesses are writes, this theoretically can lead to silent corruption. This patch fixes the race by using RCU for the partition array and dev reference counter to hold partitions. * Rename disk->part[] to disk->__part[] to make sure no one outside genhd layer proper accesses it directly. * Use RCU for disk->__part[] dereferencing. * Implement disk_{get|put}_part() which can be used to get and put partitions from gendisk respectively. * Iterators are implemented to help iterate through all partitions safely. * Functions which require RCU readlock are marked with _rcu suffix. * Use disk_put_part() in __blkdev_put() instead of directly putting the contained kobject. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: don't depend on consecutive minor spaceTejun Heo2-2/+2
* Implement disk_devt() and part_devt() and use them to directly access devt instead of computing it from ->major and ->first_minor. Note that all references to ->major and ->first_minor outside of block layer is used to determine devt of the disk (the part0) and as ->major and ->first_minor will continue to represent devt for the disk, converting these users aren't strictly necessary. However, convert them for consistency. * Implement disk_max_parts() to avoid directly deferencing genhd->minors. * Update bdget_disk() such that it doesn't assume consecutive minor space. * Move devt computation from register_disk() to add_disk() and make it the only one (all other usages use the initially determined value). These changes clean up the code and will help disk->part dereference fix and extended block device numbers. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09block: misc updatesTejun Heo1-1/+1
This patch makes the following misc updates in preparation for disk->part dereference fix and extended block devt support. * implment part_to_disk() * fix comment about gendisk->part indexing * rename get_part() to disk_map_sector() * don't use n which is always zero while printing disk information in diskstats_show() Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09virtio_blk: use a wrapper function to access io context information of IO ↵Fernando Luis Vázquez Cao1-2/+2
requests struct request has an ioprio member but it is never updated because currently bios do not hold io context information. The implication of this is that virtio_blk ends up passing useless information to the backend driver. That said, some IO schedulers such as CFQ do store io context information in struct request, but use private members for that, which means that that information cannot be directly accessed in a IO scheduler-independent way. This patch adds a function to obtain the ioprio of a request. We should avoid accessing ioprio directly and use this function instead, so that its users do not have to care about future changes in block layer structures or what the currently active IO controller is. This patch does not introduce any functional changes but paves the way for future clean-ups and enhancements. Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-09Kill REQ_TYPE_FLUSHDavid Woodhouse1-3/+6
It was only used by ps3disk, and it should probably have been REQ_TYPE_LINUX_BLOCK + REQ_LB_OP_FLUSH. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-10-07powerpc/iseries: Remove unused variable in viodasd.cJohann Felix Soden1-3/+0
The variable statindex in send_request is never read, so remove it. Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-09-23aoe: Fix OOPS after SKB queue changes.David S. Miller1-1/+3
Reported by Thomas Graf. If we don't unlink the SKB from the queue when we send it out in aoenet_xmit(), dev_hard_start_xmit() will see skb->next as non-NULL and interpret this to mean the SKB is part of a GSO segment list. Add __skb_unlink() call to fix that. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-23powerpc: convert CONFIG_PPC_MERGE to CONFIG_PPC for legacy io checksKumar Gala1-1/+1
Now that arch/ppc is dead CONFIG_PPC_MERGE is always defined for all powerpc platforms and we want to get rid of CONFIG_PPC_MERGE use CONFIG_PPC instead. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-09-21aoe: Use SKB interfaces for list management instead of home-grown stuff.David S. Miller7-76/+56
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-09-16Merge branch 'master' of ↵David S. Miller1-25/+10
master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 Conflicts: arch/sparc64/kernel/pci_psycho.c
2008-09-10Merge branch 'core/xen' into x86/xenIngo Molnar1-25/+10
2008-09-01sparc64: Apply const or __initdata to vio_device_id[]David S. Miller1-2/+2
This mirrors the of_device_id[] changes done in fd098316ef533e8441576f020ead4beab93154ce ("sparc: Annotate of_device_id arrays with const or __initdata.") Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-27Revert "pktcdvd: push BKL down into driver"Linus Torvalds1-25/+10
This reverts commit 5b6155ee70e9c4d2ad7e6f514c8eee06e2711c3a, because the block device ioctl's really aren't ready for it. In particular, the "struct file *" and the "struct inode *" arguments do not necessarily match, which means that the unlocked version of the ioctl (that only gets a "struct file *") isn't actually able to handle the cases it needs to handle. This fixes bugzilla http://bugzilla.kernel.org/show_bug.cgi?id=11401 Reported-and-bisected-by: Laurent Riffard <laurent.riffard@free.fr> Acked-by: Peter Osterlund <petero2@telia.com> Cc: Alan Cox <alan@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-25Merge branch 'linus' into x86/xenIngo Molnar2-5/+7
Conflicts: arch/x86/kernel/paravirt.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-20brd: fix name argument of unregister_blkdev()Akinobu Mita1-1/+1
The name of brd block device is "ramdisk", it's not "brd". (The block device is registered by register_blkdev(RAMDISK_MAJOR, "ramdisk") So it should be unregistered by unregister_blkdev(RAMDISK_MAJOR, "ramdisk") Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20nbd: fix memory leak of nbd_dev arraySven Wegener1-4/+6
We leak the memory allocated for the nbd_dev array at multiple places. Fix them by either adding a kfree() or by rearranging code to return before we allocate the memory. Signed-off-by: Sven Wegener <sven.wegener@stealer.net> Cc: Paul Clements <paul.clements@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20xen: clean up domain mode predicatesJeremy Fitzhardinge1-1/+1
There are four operating modes Xen code may find itself running in: - native - hvm domain - pv dom0 - pv domU Clean up predicates for testing for these states to make them more consistent. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Xen-devel <xen-devel@lists.xensource.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-08-06xen-blkfront.c: make blkif_ioctl() staticAdrian Bunk1-2/+2
This patch makes the needlessly global blkif_ioctl() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-06cciss: fix bug if scsi tape support is disabledMike Miller1-0/+2
Bug fix. If SCSI tape support is turned off we get an implicit declaration of cciss_unregister_scsi error in cciss_remove_one. Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-06cciss: add support for multi lun tape devicesMike Miller1-3/+37
This patch adds support for multi-lun devices in a SAS environment. It's required for the support of media changers. Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net> Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-06cciss: change the way we notify scsi midlayer of tape drivesMike Miller1-39/+118
This patch changes way we notify the scsi layer that something has changed on the SCSI tape side of the driver. The user can now just tell the driver to rescan a particular controller rather than having to know the SCSI nexus to echo into the SCSI mid-layer. Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net> Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-06cciss: fix negative logical drive count in procfsMike Miller1-6/+9
This patch fixes a problem where the logical volume count may go negative. In some instances if several logical are configured on a controller and all of them are deleted using the online utilities the volume count in /proc may go negative with no way get it correct again. Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net> Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-06cciss: remove redundant codeMike Miller1-304/+169
This patch removes redundant code where ever logical volumes are added or removed. It adds 3 new functions that are called instead of having the same code spread throughout the driver. It also removes the cciss_getgeometry function. The patch is fairly complex but we haven't figured out how to make it any simpler and still do everything that needs to be done. Some of the complexity comes from having to special case booting from cciss. Otherwise the gendisk doesn't get added in time and the switchroot will fail. Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net> Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-06cciss: make rebuild_lun_table behave betterMike Miller2-122/+216
This patch makes the rebuild_lun_table smart enough to not rip a logical volume out from under the OS. Without this fix if a customer is running hpacucli to monitor their storage the driver will blindly remove and re-add the disks whenever the utility calls the CCISS_REGNEWD ioctl. Unfortunately, both hpacucli and ACUXE call the ioctl repeatedly. Customers have reported IO coming to a standstill. Calling the ioctl is the problem, this patch is the fix. Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net> Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-06cciss: return -EFAULT if copy_from_user() failsNikanth Karthikesan1-1/+1
Return -EFAULT instead of -ENOMEM if copy_from_user() fails. Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Acked-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-08-05block/cciss.c: remove pointless curr_queue calculationHannes Reinecke1-2/+0
curr_queue is a local variable in a for loop, and it's being initialized at the start of each loop. So any assignment at the end of the loop is pointless. Signed-off-by: Hannes Reinecke <hare@suse.de> Cc: Mike Miller <mike.miller@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-01Remove newline from the description of module parametersNiels de Vos1-1/+1
Some module parameters with only one line have the '\n' at the end of the description. This is not needed nor wanted as after the description the type (i.e. int) is followed by a newline. Some modules contain a multi-line description, these are not affected by this patch. Signed-off-by: Niels de Vos <niels.devos@wincor-nixdorf.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: John W. Linville <linville@tuxdriver.com> Cc: Ed L. Cashin <ecashin@coraid.com> Cc: Dave Airlie <airlied@linux.ie> Cc: Roland Dreier <rolandd@cisco.com> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25aoe: convert emsgs_sema into a completionMatthias Kaehlcke1-4/+5
ATA over Ethernet: The semaphore emsgs_sema is used for signalling an event, convert it in a completion. Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Cc: "Ed L. Cashin" <ecashin@coraid.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25virtio_blk: check for hardsector size from hostChristian Borntraeger1-1/+9
Currently virtio_blk assumes a 512 byte hard sector size. This can cause trouble / performance issues if the backing has a different block size (like a file on an ext3 file system formatted with 4k block size or a dasd). Lets add a feature flag that tells the guest to use a different hard sector size than 512 byte. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-21device create: block: convert device_create to device_create_drvdataGreg Kroah-Hartman4-9/+15
device_create() is race-prone, so use the race-free device_create_drvdata() instead as device_create() is going away. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-20m68k: Return -ENODEV if no device is foundGeert Uytterhoeven1-2/+2
According to the tests in do_initcalls(), the proper error code in case no device is found is -ENODEV, not -ENXIO or -EIO. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 16:28:18 +0000