Alasdair G Kergon
bfc5ecdf48
[PATCH] dm: fix find_device race ...
There is a race between dev_create() and find_device().
If the mdptr has not yet been stored against a device, find_device() needs to
behave as though no device was found. It already returns NULL, but there is a
dm_put() missing: it must drop the reference dm_get_md() took.
The bug was introduced by dm-fix-mapped-device-ref-counting.patch.
It manifests itself if another dm ioctl attempts to reference a newly-created
device while the device creation ioctl is still running. The consequence is
that the device cannot be removed until the machine is rebooted. Certain udev
configurations can lead to this happening.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: <dm-devel@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-08 18:29:23 -08:00
[PATCH] md: endian annotations for the bitmap superblock
2006-10-21 13:35:05 -07:00
[PATCH] Fix dmsetup table output change
2006-10-30 12:02:57 -08:00
[PATCH] Split struct request ->flags into two parts
2006-09-30 20:23:37 +02:00
[PATCH] dm snapshot: fix metadata writing when suspending
2006-10-03 08:04:14 -07:00
[PATCH] dm: fix find_device race
2006-11-08 18:29:23 -08:00
[PATCH] dm: support ioctls on mapped devices: fix with fake file
2006-10-03 08:04:13 -07:00
[PATCH] dm: improve error message consistency
2006-06-26 09:58:36 -07:00
[PATCH] dm mpath: use kzalloc
2006-10-03 08:04:15 -07:00
[PATCH] dm mirror: remove trailing space from table
2006-10-03 08:04:15 -07:00
[PATCH] dm: improve error message consistency
2006-06-26 09:58:36 -07:00
[PATCH] dm snapshot: fix freeing pending exception
2006-10-03 08:04:15 -07:00
[PATCH] dm snapshot: add workqueue
2006-10-03 08:04:14 -07:00
[PATCH] dm: improve error message consistency
2006-06-26 09:58:36 -07:00
[PATCH] dm table: add target flush
2006-10-03 08:04:16 -07:00
[PATCH] dm: improve error message consistency
2006-06-26 09:58:36 -07:00
[PATCH] dm: improve error message consistency
2006-06-26 09:58:36 -07:00
[PATCH] dm: use private biosets
2006-10-03 08:04:16 -07:00
[PATCH] dm table: add target preresume
2006-10-03 08:04:15 -07:00
[PATCH] md: remove 'experimental' classification from raid5 reshape
2006-10-03 08:04:18 -07:00
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
[PATCH] md: define backing_dev_info.congested_fn for raid0 and linear
2006-10-03 08:04:18 -07:00
[PATCH] md: merge raid5 and raid6 code
2006-06-26 09:58:37 -07:00
[PATCH] md: send online/offline uevents when an md array starts/stops
2006-11-03 12:27:55 -08:00
[PATCH] md: fix up maintenance of ->degraded in multipath
2006-10-28 11:30:51 -07:00
[PATCH] md: define backing_dev_info.congested_fn for raid0 and linear
2006-10-03 08:04:18 -07:00
[PATCH] md: fix printk format warnings, seen on powerpc64:
2006-10-28 11:30:52 -07:00
BUG_ON cleanup for drivers/md/
2006-10-03 23:33:23 +02:00
[PATCH] drivers/md/raid6algos.c: fix a NULL dereference
2006-06-23 07:43:08 -07:00
[PATCH] md: fix printk format warnings, seen on powerpc64:
2006-10-28 11:30:52 -07:00
bfc5ecdf48