- 20 10月, 2007 40 次提交
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由 Linus Torvalds 提交于
Erez Zadok reports that certain configurations fail to build due to schedule() TASK_[UN]INTERRUPTIBLE not being declared. Add proper include files to fix. Cc: Erez Zadok <ezk@cs.sunysb.edu> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: (50 commits) ide: remove inclusion of non-existent io_trace.h ide-disk: add get_smart_data() helper ide: fix ->data_phase in taskfile_load_raw() ide: check drive->using_dma in flagged_taskfile() ide: check ->dma_setup() return value in flagged_taskfile() dtc2278: note on docs qd65xx: remove pointless qd_{read,write}_reg() (take 2) ide: PCI BMDMA initialization fixes (take 2) ide: remove stale comments from ide-taskfile.c ide: remove dead code from ide_driveid_update() ide: use __ide_end_request() in ide_end_dequeued_request() ide: enhance ide_setup_pci_noise() cs5530: remove needless ide_lock taking ide: take ide_lock for prefetch disable/enable in do_special() ht6560b: fix deadlock on error handling cmd640: fix deadlock on error handling slc90e66: fix deadlock on error handling opti621: fix deadlock on error handling qd65xx: fix deadlock on error handling dtc2278: fix deadlock on error handling ...
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由 Olof Johansson 提交于
Signed-off-by: NOlof Johansson <olof@lixom.net> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Linus Torvalds 提交于
* master.kernel.org:/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (29 commits) dm crypt: tidy pending dm mpath: send uevents dm: uevent generate events dm: add uevent to core dm: export name and uuid dm raid1: add mirror_set to struct mirror dm log: split suspend dm mpath: hp retry if not ready dm mpath: add hp handler dm mpath: add retry pg init dm crypt: tidy labels dm crypt: tidy whitespace dm crypt: add post processing queue dm crypt: use per device singlethread workqueues dm mpath: emc fix an error message dm: bio_list macro renaming dm io:ctl remove vmalloc void cast dm: tidy bio_io_error usage kcopyd use mutex instead of semaphore dm: use kzalloc ...
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由 Eric W. Biederman 提交于
Weird I thought I had written the makefile so this would be handled. Oh well this should fix it. Sorry about that. Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Acked-and-tested-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Milan Broz 提交于
Add crypt prefix to dec_pending to avoid confusing it in backtraces with the dm core function of the same name. No functional change here. Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Anderson 提交于
This patch adds calls to dm_path_event for a failed path and a reinstated path. Signed-off-by: NMike Anderson <andmike@linux.vnet.ibm.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Anderson 提交于
This patch adds support for the dm_path_event dm_send_event functions which create and send udev events. Signed-off-by: NMike Anderson <andmike@linux.vnet.ibm.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Anderson 提交于
This patch adds a uevent skeleton to device-mapper. Signed-off-by: NMike Anderson <andmike@linux.vnet.ibm.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Mike Anderson 提交于
This patch adds a function to obtain a copy of a mapped device's name and uuid. Signed-off-by: NMike Anderson <andmike@linux.vnet.ibm.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Jonathan Brassow 提交于
Store a pointer to the owning mirror_set structure within each mirror structure for a subsequent patch to use. Signed-off-by: NJonathan Brassow <jbrassow@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Jonathan Brassow 提交于
There are now two phases to a suspend in device-mapper - presuspend and postsuspend. This patch removes the single 'suspend' in the logging API and replaces it with 'presuspend' and 'postsuspend' functions to align it better with core device-mapper. A subsequent patch will make use of 'presuspend'. Signed-off-by: NJonathan Brassow <jbrassow@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Dave Wysochanski 提交于
This patch adds retries to the hp hardware handler, and utilizes the MP_RETRY flag of dm-multipath. For now in the hp handler, if we get a pg_init completed with a check condition we just assume we can retry the pg_init command. We make this assumption because of incomplete data on specific check condition code of the HP hardware, and because testing has shown the HP path initialization command to be idempotent. The number of times we retry is settable via the "pg_init_retries" multipath map feature. Signed-off-by: NDave Wysochanski <dwysocha@redhat.com> Acked-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Dave Wysochanski 提交于
This patch adds the most basic dm-multipath hardware support for the HP active/passive arrays. Signed-off-by: NDave Wysochanski <dwysocha@redhat.com> Signed-off-by: NMike Christie <michaelc@cs.wisc.edu> Acked-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Dave Wysochanski 提交于
This patch allows a failed path group initialisation command to be retried. It adds a generic MP_RETRY flag and a "pg_init_retries" feature to device-mapper multipath which limits the number of retries. 1. A hw handler sends a path initialization command to the storage and the command completes with an error code indicating the command should be retried. 2. The hardware handler calls dm_pg_init_complete() with MP_RETRY set in err_flags to ask the dm multipath core to retry. 3. If the retry limit has not been exceeded, pg_init() is retried. Otherwise fail_path() is called. If you are using the userspace multipath-tools or device-mapper-multipath package, you can set pg_init_retries in the 'device' section of your /etc/multipath.conf file. For example: features "2 pg_init_retries 7" The number of PG retries attempted is reported in the 'dmsetup status' output. Signed-off-by: NDave Wysochanski <dwysocha@redhat.com> Acked-by: NMike Christie <michaelc@cs.wisc.edu> Acked-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Milan Broz 提交于
Replace numbers with names in labels in error paths, to avoid confusion when new one get added between existing ones. Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Milan Broz 提交于
Clean up, convert some spaces to tabs. No functional change here. Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Milan Broz 提交于
Add post-processing queue (per crypt device) for read operations. Current implementation uses only one queue for all operations and this can lead to starvation caused by many requests waiting for memory allocation. But the needed memory-releasing operation is queued after these requests (in the same queue). Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Milan Broz 提交于
Use a separate single-threaded workqueue for each crypt device instead of one global workqueue. Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Alasdair G Kergon 提交于
Correct an error message, reported by Michael Wood <michael@frogfoot.com>. Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Alasdair G Kergon 提交于
Remove BIO_LIST and DEFINE_BIO_LIST macros that gain us nothing since contents are initialised to NULL. Cc: Jan Engelhardt <jengelh@linux01.gwdg.de> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Jesper Juhl 提交于
In drivers/md/dm-ioctl.c::copy_params() there's a call to vmalloc() where we currently cast the return value, but that's pretty pointless given that vmalloc() returns "void *". Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Milan Broz 提交于
Use bio_io_error() in only two places and tidy the code, preparing for later patches. There is no functional change in this patch. Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Matthias Kaehlcke 提交于
Kcopyd uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore, Signed-off-by: NMatthias Kaehlcke <matthias.kaehlcke@gmail.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: NAlasdair G Kergon <agk@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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由 Dmitry Monakhov 提交于
Convert kmalloc() + memset() to kzalloc(). Signed-off-by: NDmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 vignesh babu 提交于
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n) Signed-off-by: Nvignesh babu <vignesh.babu@wipro.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Jun'ichi Nomura 提交于
This patch fixes a bd_mount_sem counter corruption bug in device-mapper. thaw_bdev() should be called only when freeze_bdev() was called for the device. Otherwise, thaw_bdev() will up bd_mount_sem and corrupt the semaphore counter. struct block_device with the corrupted semaphore may remain in slab cache and be reused later. Attached patch will fix it by calling unlock_fs() instead. unlock_fs() will determine whether it should call thaw_bdev() by checking the device is frozen or not. Easy reproducer is: #!/bin/sh while [ 1 ]; do dmsetup --notable create a dmsetup --nolockfs suspend a dmsetup remove a done It's not easy to see the effect of corrupted semaphore. So I have tested with putting printk below in bdev_alloc_inode(): if (atomic_read(&ei->bdev.bd_mount_sem.count) != 1) printk(KERN_DEBUG "Incorrect semaphore count = %d (%p)\n", atomic_read(&ei->bdev.bd_mount_sem.count), &ei->bdev); Without the patch, I saw something like: Incorrect semaphore count = 17 (f2ab91c0) With the patch, the message didn't appear. The bug was introduced in 2.6.16 with this bug fix: commit d9dde59b Date: Fri Feb 24 13:04:24 2006 -0800 [PATCH] dm: missing bdput/thaw_bdev at removal Need to unfreeze and release bdev otherwise the bdev inode with inconsistent state is reused later and cause problem. and backported to 2.6.15.5. It occurs only in free_dev(), which is called only when the dm device is removed. The buggy code is executed only if md->suspended_bdev is non-NULL and that can happen only when the device was suspended without noflush. Signed-off-by: NJun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com> Cc: stable@kernel.org
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由 Milan Broz 提交于
Fix missing space in dm-delay target status output if separate read and write delay are configured. Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Dmitry Monakhov 提交于
Add missing 'dm_put_device' to dm-delay target constructor. Signed-off-by: NDmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Dmitry Monakhov 提交于
Add missing 'dm_io_client_destroy' to alloc_context error path. Reorganize mirror constructor error path in order to prevent workqueue leakage. Signed-off-by: NDmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Dmitry Monakhov 提交于
Insert missing kfree() in crypt_iv_essiv_ctr() error path. Signed-off-by: NDmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Dmitry Monakhov 提交于
Add a missing 'dm_put_device' in an error path in crypt target constructor. Signed-off-by: NDmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Milan Broz 提交于
Make size of dm_ioctl struct always 312 bytes on all supported architectures. This change retains compatibility with already-compiled code because it uses an embedded offset to locate the payload that follows the structure. On 64-bit architectures there is no change at all; on 32-bit we are increasing the size of dm-ioctl from 308 to 312 bytes. Currently with 32-bit userspace / 64-bit kernel on x86_64 some ioctls (including rename, message) are incorrectly rejected by the comparison against 'param + 1'. This breaks userspace lvrename and multipath 'fail_if_no_path' changes, for example. (BTW Device-mapper uses its own versioning and ignores the ioctl size bits. Only the generic ioctl compat code on mixed arches checks them, and that will continue to accept both sizes for now, but we intend to list 308 as deprecated and eventually remove it.) Signed-off-by: NMilan Broz <mbroz@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com> Cc: Guido Guenther <agx@sigxcpu.org> Cc: Kevin Corry <kevcorry@us.ibm.com> Cc: stable@kernel.org
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由 Bryn M. Reeves 提交于
Re-order the initialisation of dm-rdac to avoid registering the hw handler before the workqueue has been initialised. Closes a race that would potentially give an oops. Signed-off-by: NBryn M. Reeves <breeves@redhat.com> Signed-off-by: NAlasdair G Kergon <agk@redhat.com>
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由 Robert P. J. Day 提交于
Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com> Cc: gadio@netvision.net.il Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Merge get_smart_values() and get_smart_thresholds() into get_smart_data() helper. Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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It should be TASKFILE_NO_DATA, not TASKFILE_IN. Luckily ATM ->data_phase is unused if ->command_type == IDE_DRIVE_TASK_NO_DATA but this may change in the future. Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Acked-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Alan Cox 提交于
Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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