tree fe474e51721e497374bbf6e674f883e54138e699
parent 5b72727299307e53888277729f980ab03264dac8
author Omar Sandoval <osandov@fb.com> 1492156801 -0700
committer Jens Axboe <axboe@fb.com> 1492200417 -0600

blk-mq-sched: make completed_request() callback more useful

Currently, this callback is called right after put_request() and has no
distinguishable purpose. Instead, let's call it before put_request() as
soon as I/O has completed on the request, before we account it in
blk-stat. With this, Kyber can enable stats when it sees a latency
outlier and make sure the outlier gets accounted.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>