tree 79b20c37c734b5932dcecc9e85850847b0a69855
parent 1bcb1eada4f11a713cbe586d1b5a5d93a48277cb
author Ming Lei <ming.lei@canonical.com> 1411658620 +0800
committer Jens Axboe <axboe@fb.com> 1411680155 -0600

block: introduce blk_init_flush and its pair

These two temporary functions are introduced for holding flush
initialization and de-initialization, so that we can
introduce 'flush queue' easier in the following patch. And
once 'flush queue' and its allocation/free functions are ready,
they will be removed for sake of code readability.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>