Re: [PATCH V4 08/12] blktrace: export cgroup info in trace

2017-06-28 Thread Steven Rostedt
On Wed, 28 Jun 2017 09:29:58 -0700 Shaohua Li wrote: > From: Shaohua Li > > Currently blktrace isn't cgroup aware. blktrace prints out task name of > current context, but the task of current context isn't always in the > cgroup where the BIO comes from. We can't

[PATCH V4 08/12] blktrace: export cgroup info in trace

2017-06-28 Thread Shaohua Li
From: Shaohua Li Currently blktrace isn't cgroup aware. blktrace prints out task name of current context, but the task of current context isn't always in the cgroup where the BIO comes from. We can't use task name to find out IO cgroup. For example, Writeback BIOs always comes from