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| author | NeilBrown <neilb@suse.de> | 2010-08-07 21:17:00 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2010-08-07 21:17:00 +1000 |
| commit | 51e9ac77035a3dfcb6fc0a88a0d80b6f99b5edb1 (patch) | |
| tree | 94167223c5711c47169db672a0ec0d23a36208b9 /drivers/md/md.c | |
| parent | 69e51b449d383e97b1b9f890f8378c96e9e17346 (diff) | |
| download | linux-51e9ac77035a3dfcb6fc0a88a0d80b6f99b5edb1.tar.bz2 | |
md/raid10: fix deadlock with unaligned read during resync
If the 'bio_split' path in raid10-read is used while
resync/recovery is happening it is possible to deadlock.
Fix this be elevating ->nr_waiting for the duration of both
parts of the split request.
This fixes a bug that has been present since 2.6.22
but has only started manifesting recently for unknown reasons.
It is suitable for and -stable since then.
Reported-by: Justin Bronder <jsbronder@gentoo.org>
Tested-by: Justin Bronder <jsbronder@gentoo.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/md/md.c')
0 files changed, 0 insertions, 0 deletions