redonkable/alistair23-linux
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alistair23-linux/drivers/md
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Alasdair G Kergon 5c6bd75d06 [PATCH] dm: prevent removal if open 
If you misuse the device-mapper interface (or there's a bug in your userspace
tools) it's possible to end up with 'unlinked' mapped devices that cannot be
removed until you reboot (along with uninterruptible processes).

This patch prevents you from removing a device that is still open.

It introduces dm_lock_for_deletion() which is called when a device is about to
be removed to ensure that nothing has it open and nothing further can open it.
 It uses a private open_count for this which also lets us remove one of the
problematic bdget_disk() calls elsewhere.

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 09:58:36 -07:00
..
raid6test [PATCH] RAID6 Altivec fix 2005-09-17 11:49:58 -07:00
.gitignore gitignore: misc files 2006-01-01 22:21:50 +01:00
bitmap.c [PATCH] mempool: use common mempool kmalloc allocator 2006-03-26 08:56:59 -08:00
dm-bio-list.h [PATCH] device-mapper snapshot: bio_list fix 2005-11-22 09:14:31 -08:00
dm-bio-record.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-crypt.c [PATCH] dm: remove SECTOR_FORMAT 2006-03-27 08:44:58 -08:00
dm-emc.c [PATCH] device-mapper dm-emc: Fix a memset 2005-05-05 16:36:46 -07:00
dm-exception-store.c [PATCH] dm snapshot: unify chunk_size 2006-06-26 09:58:34 -07:00
dm-hw-handler.c BUG_ON() Conversion in md/dm-hw-handler.c 2006-03-24 18:36:27 +01:00
dm-hw-handler.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-io.c [PATCH] mempool: use common mempool kmalloc allocator 2006-03-26 08:56:59 -08:00
dm-io.h [PATCH] device-mapper: remove unused definition 2006-01-06 08:34:00 -08:00
dm-ioctl.c [PATCH] dm: prevent removal if open 2006-06-26 09:58:36 -07:00
dm-linear.c [PATCH] dm: remove SECTOR_FORMAT 2006-03-27 08:44:58 -08:00
dm-log.c [PATCH] dm mirror log: sync_count fix 2006-06-26 09:58:35 -07:00
dm-log.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-mpath.c [PATCH] mempool: use mempool_create_slab_pool() 2006-03-26 08:57:00 -08:00
dm-mpath.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-path-selector.c BUG_ON() Conversion in md/dm-path-selector.c 2006-03-26 18:21:58 +02:00
dm-path-selector.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-raid1.c [PATCH] dm kcopyd: error accumulation fix 2006-06-26 09:58:35 -07:00
dm-round-robin.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-snap.c [PATCH] dm snapshot: unify chunk_size 2006-06-26 09:58:34 -07:00
dm-snap.h [PATCH] device-mapper snapshot: load metadata on creation 2006-02-01 08:53:10 -08:00
dm-stripe.c [PATCH] dm: remove unnecessary typecast 2006-03-27 08:45:00 -08:00
dm-table.c [PATCH] dm: create error table 2006-06-26 09:58:36 -07:00
dm-target.c BUG_ON() Conversion in md/dm-target.c 2006-04-01 01:08:12 +02:00
dm-zero.c [PATCH] device-mapper: Some missing statics 2005-05-05 16:36:46 -07:00
dm.c [PATCH] dm: prevent removal if open 2006-06-26 09:58:36 -07:00
dm.h [PATCH] dm: prevent removal if open 2006-06-26 09:58:36 -07:00
faulty.c [PATCH] md: allow array level to be set textually via sysfs 2006-01-06 08:34:09 -08:00
Kconfig [PATCH] md: make sure 64bit fields in version-1 metadata are 64-bit aligned 2006-04-11 06:18:30 -07:00
kcopyd.c [PATCH] dm kcopyd: error accumulation fix 2006-06-26 09:58:35 -07:00
kcopyd.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
linear.c [PATCH] md: allow array level to be set textually via sysfs 2006-01-06 08:34:09 -08:00
Makefile [PATCH] md: optimised resync using Bitmap based intent logging 2005-06-21 19:07:43 -07:00
md.c [PATCH] md: Fix badness in sysfs_notify caused by md_new_event 2006-05-31 16:27:11 -07:00
mktables.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath.c [PATCH] mempool: use common mempool kzalloc allocator 2006-03-26 08:56:59 -08:00
raid0.c [PATCH] md: fix possible oops when starting a raid0 array 2006-05-23 10:35:31 -07:00
raid1.c [PATCH] md: Fix 'rdev->nr_pending' count when retrying barrier requests 2006-05-01 18:17:42 -07:00
raid5.c BUG_ON() Conversion in md/raid5.c 2006-04-02 13:31:42 +02:00
raid6.h [PATCH] RAID6 Altivec fix 2005-09-17 11:49:58 -07:00
raid6algos.c [PATCH] drivers/md/raid6algos.c: fix a NULL dereference 2006-06-23 07:43:08 -07:00
raid6altivec.uc [PATCH] RAID6 Altivec fix 2005-09-17 11:49:58 -07:00
raid6int.uc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6main.c BUG_ON() Conversion in md/raid6main.c 2006-04-02 13:33:30 +02:00
raid6mmx.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6recov.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6sse1.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6sse2.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6x86.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid10.c [PATCH] md: Fixed refcounting/locking when attempting read error correction in raid10 2006-05-01 18:17:42 -07:00
unroll.pl Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xor.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00