block: add WRITE_BG
authorJens Axboe <axboe@fb.com>
Thu, 14 Apr 2016 15:51:10 +0000 (09:51 -0600)
committerJens Axboe <axboe@fb.com>
Mon, 18 Apr 2016 01:16:44 +0000 (20:16 -0500)
commit462ca58af90f301528d7e77eac347146254da90c
treef0a1b1361194b5e0334aae32e2819e6984af394e
parentc48fcd8ac284d485afaa9bb51934f64b152f59e3
block: add WRITE_BG

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

Signed-off-by: Jens Axboe <axboe@fb.com>
include/linux/blk_types.h
include/linux/fs.h