summaryrefslogtreecommitdiff
path: root/lib/sbitmap.c
diff options
context:
space:
mode:
authorJan Kara <jack@suse.cz>2017-04-11 11:29:01 +0200
committerJens Axboe <axboe@fb.com>2017-04-11 08:09:14 -0600
commit3f19cd23f3a9420fe7bd98ad41d05e45fa6d4d47 (patch)
tree1070c884072bcc98912373ca6953c2010451b1a5 /lib/sbitmap.c
parentf5c0b0910ac4c1bc93474d7593cc73622fdfc822 (diff)
block: Fix list corruption of blk stats callback list
When CFQ calls wbt_disable_default(), it will call blk_stat_remove_callback() to stop gathering IO statistics for the purposes of writeback throttling. Later, when request_queue is unregistered, wbt_exit() will call blk_stat_remove_callback() again which will try to delete callback from the list again and possibly cause list corruption. Fix the problem by making wbt_disable_default() called wbt_exit() which is properly guarded against being called multiple times. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'lib/sbitmap.c')
0 files changed, 0 insertions, 0 deletions