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| author |   Christoph Hellwig <hch@lst.de> | 2014-09-13 16:40:09 -0700 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2014-09-22 12:00:07 -0600 |
| commit | e2490073cd7c3d6f6ef6e029a208edd4d38efac4 (patch) | |
| tree | 48465e67b335f6d696d698641365b4a4d1e89d32 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | blk-mq: remove REQ_END (diff) | |
| download | linux-dev-e2490073cd7c3d6f6ef6e029a208edd4d38efac4.tar.xz linux-dev-e2490073cd7c3d6f6ef6e029a208edd4d38efac4.zip | |
blk-mq: call blk_mq_start_request from ->queue_rq
When we call blk_mq_start_request from the core blk-mq code before calling into
->queue_rq there is a racy window where the timeout handler can hit before we've
fully set up the driver specific part of the command.
Move the call to blk_mq_start_request into the driver so the driver can start
the request only once it is fully set up.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions