diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-10-16 07:34:49 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-10-18 06:17:18 -0600 |
| commit | 4a60f360a5c9533d77db011db6766448f763c86a (patch) | |
| tree | 3e401b78cec3cc16ca37ef51932392b70b00552e /include/linux/genhd.h | |
| parent | 0f38d76646157357fcfa02f50575ea044830c494 (diff) | |
block: don't dereference request after flush insertion
We could have a race here, where the request gets freed before we call
into blk_mq_run_hw_queue(). If this happens, we cannot rely on the state
of the request.
Grab the hardware context before inserting the flush.
Fixes: 0f38d7664615 ("blk-mq: cleanup blk_mq_submit_bio")
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/genhd.h')
0 files changed, 0 insertions, 0 deletions