block: add REQ_BACKGROUND
authorJens Axboe <axboe@fb.com>
Tue, 1 Nov 2016 15:52:57 +0000 (09:52 -0600)
committerJens Axboe <axboe@fb.com>
Wed, 2 Nov 2016 16:24:01 +0000 (10:24 -0600)
commit1d796d6a9641fbfcd90fcfaf6fb4894a13d0304f
tree936f37c21014cf3fc61490f85503bbd3f3836046
parent7281b4526cefc898d180850b54d1369f38c6b202
block: add REQ_BACKGROUND

This adds a new request flag, REQ_BACKGROUND, that callers can use to
tell the block layer that this is background (non-urgent) IO.

Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
include/linux/blk_types.h