From: Shaohua Li <shli@xxxxxx> Hi, latency info is a good sign to determine if IO is healthy. The patches export such info to cgroup io.stat. Thanks, Shaohua Shaohua Li (2): block: record blkcss in request blockcg: export latency info for each cgroup block/blk-cgroup.c | 29 +++++++++++++- block/blk-core.c | 12 ++++++ block/blk-stat.c | 95 +++++++++++++++++++++++++++++++++++++++++++++- block/blk.h | 5 +++ include/linux/blk-cgroup.h | 7 ++++ include/linux/blkdev.h | 1 + 6 files changed, 146 insertions(+), 3 deletions(-) -- 2.9.5
