summaryrefslogtreecommitdiff
path: root/block/blk-sysfs.c
diff options
context:
space:
mode:
authorJens Axboe <axboe@fb.com>2015-11-05 20:41:40 +0300
committerJens Axboe <axboe@fb.com>2015-11-07 20:40:47 +0300
commit7b371636fb6d187873d9d2730c2b1febc48a9b47 (patch)
tree28044eb235fb576771b171ade4e40cfd5d9343a8 /block/blk-sysfs.c
parentdece16353ef47d8d33f5302bc158072a9d65e26f (diff)
downloadlinux-7b371636fb6d187873d9d2730c2b1febc48a9b47.tar.xz
blk-mq: return tag/queue combo in the make_request_fn handlers
Return a cookie, blk_qc_t, from the blk-mq make request functions, that allows a later caller to uniquely identify a specific IO. The cookie doesn't mean anything to the caller, but the caller can use it to later pass back to the block layer. The block layer can then identify the hardware queue and request from that cookie. Signed-off-by: Jens Axboe <axboe@fb.com> Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com>
Diffstat (limited to 'block/blk-sysfs.c')
0 files changed, 0 insertions, 0 deletions