cfq-iosched: Make IO merge related stats per cpu
authorVivek Goyal <vgoyal@redhat.com>
Mon, 23 May 2011 08:02:19 +0000 (10:02 +0200)
committerJens Axboe <jaxboe@fusionio.com>
Mon, 23 May 2011 08:02:19 +0000 (10:02 +0200)
commit317389a7739675aa990b7e0d750a7c435f1d25d7
treec24b7bb45d03233d76405dab4f9406c05c44eafa
parent2abae55f5a41d29f21b5b259c33d218c950d5c90
cfq-iosched: Make IO merge related stats per cpu

Make BLKIO_STAT_MERGED per cpu hence gettring rid of need of taking
blkg->stats_lock.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
block/blk-cgroup.c
block/blk-cgroup.h