diff options
| author | Jens Axboe <axboe@fb.com> | 2014-09-16 10:37:37 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-09-22 11:54:04 -0600 |
| commit | 538b75341835e3c2041ff066408de10d24fdc830 (patch) | |
| tree | 6b7b60f296779302cc70d7c79e47b4dcc440a9be /lib/test-string_helpers.c | |
| parent | 37504a3be90b69438426d74ccf467a9fe192932b (diff) | |
blk-mq: request deadline must be visible before marking rq as started
When we start the request, we set the deadline and flip the bits
marking the request as started and non-complete. However, it's
important that the deadline store is ordered before flipping the
bits, otherwise we could have a small window where the request is
marked started but with an invalid deadline. This can confuse the
timeout handling.
Suggested-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'lib/test-string_helpers.c')
0 files changed, 0 insertions, 0 deletions