summaryrefslogtreecommitdiffstats
path: root/drivers/ps3
diff options
context:
space:
mode:
authorJens Axboe <axboe@fb.com>2014-04-24 08:51:47 -0600
committerJens Axboe <axboe@fb.com>2014-04-24 08:51:47 -0600
commit87ee7b112193bd081ba1a171fa5f6f39c429ef56 (patch)
treefbf88d2de279209467dee4d6cd9007f5daa8a678 /drivers/ps3
parent70ab0b2d51f84fc7d9eb6ed81c3986595efaa33d (diff)
downloadlinux-87ee7b112193bd081ba1a171fa5f6f39c429ef56.tar.bz2
blk-mq: fix race with timeouts and requeue events
If a requeue event races with a timeout, we can get into the situation where we attempt to complete a request from the timeout handler when it's not start anymore. This causes a crash. So have the timeout handler check that REQ_ATOM_STARTED is still set on the request - if not, we ignore the event. If this happens, the request has now been marked as complete. As a consequence, we need to ensure to clear REQ_ATOM_COMPLETE in blk_mq_start_request(), as to maintain proper request state. Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/ps3')
0 files changed, 0 insertions, 0 deletions