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| author | Christoph Hellwig <hch@lst.de> | 2014-05-28 08:08:02 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-05-28 08:08:02 -0600 |
| commit | 6fca6a611c27f1f0d90fbe1cc3c229dbf8c09e48 (patch) | |
| tree | d3348f3ab1169db9b5a1fca67a8fd2164152530c /block/blk-mq-tag.h | |
| parent | 7738dac4f697ffbd0ed4c4aeb69a714ef9d876da (diff) | |
| download | linux-0-day-6fca6a611c27f1f0d90fbe1cc3c229dbf8c09e48.tar.gz linux-0-day-6fca6a611c27f1f0d90fbe1cc3c229dbf8c09e48.tar.xz | |
blk-mq: add helper to insert requests from irq context
Both the cache flush state machine and the SCSI midlayer want to submit
requests from irq context, and the current per-request requeue_work
unfortunately causes corruption due to sharing with the csd field for
flushes. Replace them with a per-request_queue list of requests to
be requeued.
Based on an earlier test by Ming Lei.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Ming Lei <tom.leiming@gmail.com>
Tested-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq-tag.h')
0 files changed, 0 insertions, 0 deletions