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| author | Minchan Kim <minchan@kernel.org> | 2014-01-30 15:45:58 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-30 16:56:55 -0800 |
| commit | da4a04126baa3be03bc566d4a2ee0944c5e783d0 (patch) | |
| tree | fec417b4bf836105091c4f32c481442c50cabefb /lib/ts_bm.c | |
| parent | eae70d06846199afc97524ed986b910836c0abe5 (diff) | |
| download | op-kernel-dev-da4a04126baa3be03bc566d4a2ee0944c5e783d0.zip op-kernel-dev-da4a04126baa3be03bc566d4a2ee0944c5e783d0.tar.gz | |
zram: fix race between reset and flushing pending work
Dan and Sergey reported that there is a racy between reset and flushing
of pending work so that it could make oops by freeing zram->meta in
reset while zram_slot_free can access zram->meta if new request is
adding during the race window.
This patch moves flush after taking init_lock so it prevents new request
so that it closes the race.
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Tested-by: 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 'lib/ts_bm.c')
0 files changed, 0 insertions, 0 deletions
