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| author | Minchan Kim <minchan@kernel.org> | 2014-07-23 21:00:04 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-07-23 22:10:54 (GMT) |
| commit | b4c5c60920e3b0c4598f43e7317559f6aec51531 (patch) | |
| tree | 558613a15eb002c5a0aef4f77c99efc741cd5b4f /fs/xfs/xfs_inode_item.h | |
| parent | a0f7a756c2f7543585657cdeeefdfcc11b567293 (diff) | |
| download | linux-b4c5c60920e3b0c4598f43e7317559f6aec51531.tar.xz | |
zram: avoid lockdep splat by revalidate_disk
Sasha reported lockdep warning [1] introduced by [2].
It could be fixed by doing disk revalidation out of the init_lock. It's
okay because disk capacity change is protected by init_lock so that
revalidate_disk always sees up-to-date value so there is no race.
[1] https://lkml.org/lkml/2014/7/3/735
[2] zram: revalidate disk after capacity change
Fixes 2e32baea46ce ("zram: revalidate disk after capacity change").
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Cc: "Alexander E. Patrakov" <patrakov@gmail.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/xfs/xfs_inode_item.h')
0 files changed, 0 insertions, 0 deletions