tree b4b7bee385293f8cc318fb309909ca3e701b903b
parent da52f22fa924b4a21d8e11fbfd3eeebd7a90a366
author Shaohua Li <shli@kernel.org> 1401458802 -0600
committer Jens Axboe <axboe@fb.com> 1401458802 -0600

blk-mq: blk_mq_tag_to_rq should handle flush request

flush request is special, which borrows the tag from the parent
request. Hence blk_mq_tag_to_rq needs special handling to return
the flush request from the tag.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@fb.com>