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| author | Shaohua Li <shli@fb.com> | 2015-01-23 14:18:00 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-01-23 14:18:00 -0700 |
| commit | 24391c0dc57c3756a219defaa781e68637d6ab7d (patch) | |
| tree | 4d0e5b213c017e622d69d916c9e13e7f6e805368 /drivers/md/dm.c | |
| parent | ee1b6f7aff94019c09e73837054979063f722046 (diff) | |
| download | op-kernel-dev-24391c0dc57c3756a219defaa781e68637d6ab7d.zip op-kernel-dev-24391c0dc57c3756a219defaa781e68637d6ab7d.tar.gz | |
blk-mq: add tag allocation policy
This is the blk-mq part to support tag allocation policy. The default
allocation policy isn't changed (though it's not a strict FIFO). The new
policy is round-robin for libata. But it's a try-best implementation. If
multiple tasks are competing, the tags returned will be mixed (which is
unavoidable even with !mq, as requests from different tasks can be
mixed in queue)
Cc: Jens Axboe <axboe@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/dm.c')
0 files changed, 0 insertions, 0 deletions
