block: add support for carrying stream information in a bio
authorJens Axboe <axboe@kernel.dk>
Wed, 14 Jun 2017 18:41:24 +0000 (12:41 -0600)
committerJens Axboe <axboe@fb.com>
Thu, 15 Jun 2017 02:13:00 +0000 (20:13 -0600)
commit36054e6f600b2b155de68e18bd844722695f9d9c
treefd467d211811de2e1d901369d4c5026ae827d661
parent63f700aab4c11d46626de3cd051dae56cf7e9056
block: add support for carrying stream information in a bio

No functional changes in this patch, we just add four flags
that will be used to denote a stream type, and ensure that we
don't merge across different stream types.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-merge.c
include/linux/blk_types.h