blk-mq: Add helper to abort requeued requests
authorJens Axboe <axboe@fb.com>
Thu, 8 Jan 2015 01:55:45 +0000 (18:55 -0700)
committerJens Axboe <axboe@fb.com>
Thu, 8 Jan 2015 15:55:53 +0000 (08:55 -0700)
Adds a helper function a driver can use to abort requeued requests in
case any are pending when h/w queues are being removed.

Signed-off-by: Jens Axboe <axboe@fb.com>

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