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. I sent the first patch separately before, but since the latter depends on it, I include it here. Thanks, Shaohua V1->V2: improve the scalability Shaohua Li (3): blk-stat: delete useless code block: set request_list for request blockcg: export latency info for each cgroup block/blk-cgroup.c | 29 +++++++- block/blk-core.c | 2 +- block/blk-mq.c | 5 ++ block/blk-stat.c | 178 +++++++++++++++++++++++++++++++++++---------- block/blk.h | 5 ++ include/linux/blk-cgroup.h | 9 +++ include/linux/blk_types.h | 5 +- 7 files changed, 189 insertions(+), 44 deletions(-) -- 2.9.5
