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>
Wed, 14 Jun 2017 18:54:57 +0000 (12:54 -0600)
commita0c808bf215d3a10a219e4d1e9cec581191e6c3c
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