Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1350205 > unrolled thread
| Started by | Tejun Heo <tj@kernel.org> |
|---|---|
| First post | 2016-03-04 14:00 +0100 |
| Last post | 2016-03-07 15:10 +0100 |
| Articles | 3 — 3 participants |
Back to article view | Back to linux.kernel
This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by
below is the oldest one visible, not the original post.
Re: [RFC V4 PATCH] trace: writeback: replace cgroup path to cgroup ino Tejun Heo <tj@kernel.org> - 2016-03-04 14:00 +0100
Re: [RFC V4 PATCH] trace: writeback: replace cgroup path to cgroup ino "Shi, Yang" <yang.shi@linaro.org> - 2016-03-07 04:40 +0100
Re: [RFC V4 PATCH] trace: writeback: replace cgroup path to cgroup ino Steven Rostedt <rostedt@goodmis.org> - 2016-03-07 15:10 +0100
| From | Tejun Heo <tj@kernel.org> |
|---|---|
| Date | 2016-03-04 14:00 +0100 |
| Subject | Re: [RFC V4 PATCH] trace: writeback: replace cgroup path to cgroup ino |
| Message-ID | <r8XuO-6XQ-1@gated-at.bofh.it> |
On Thu, Mar 03, 2016 at 01:08:57AM -0800, Yang Shi wrote:
> commit 5634cc2aa9aebc77bc862992e7805469dcf83dac ("writeback: update writeback
> tracepoints to report cgroup") made writeback tracepoints print out cgroup
> path when CGROUP_WRITEBACK is enabled, but it may trigger the below bug on -rt
> kernel since kernfs_path and kernfs_path_len are called by tracepoints, which
> acquire spin lock that is sleepable on -rt kernel.
Acked-by: Tejun Heo <tj@kernel.org>
Thanks.
--
tejun
[toc] | [next] | [standalone]
| From | "Shi, Yang" <yang.shi@linaro.org> |
|---|---|
| Date | 2016-03-07 04:40 +0100 |
| Message-ID | <r9Ubv-5PK-1@gated-at.bofh.it> |
| In reply to | #1350205 |
Hi Steven,
Any comment on this one? I'm supposed it will be taken by your tracing tree?
Thanks,
Yang
On 3/4/2016 4:52 AM, Tejun Heo wrote:
> On Thu, Mar 03, 2016 at 01:08:57AM -0800, Yang Shi wrote:
>> commit 5634cc2aa9aebc77bc862992e7805469dcf83dac ("writeback: update writeback
>> tracepoints to report cgroup") made writeback tracepoints print out cgroup
>> path when CGROUP_WRITEBACK is enabled, but it may trigger the below bug on -rt
>> kernel since kernfs_path and kernfs_path_len are called by tracepoints, which
>> acquire spin lock that is sleepable on -rt kernel.
>
> Acked-by: Tejun Heo <tj@kernel.org>
>
> Thanks.
>
[toc] | [prev] | [next] | [standalone]
| From | Steven Rostedt <rostedt@goodmis.org> |
|---|---|
| Date | 2016-03-07 15:10 +0100 |
| Message-ID | <ra41c-3Qk-5@gated-at.bofh.it> |
| In reply to | #1351284 |
On Sun, 6 Mar 2016 19:32:26 -0800 "Shi, Yang" <yang.shi@linaro.org> wrote: > Hi Steven, > > Any comment on this one? I'm supposed it will be taken by your tracing tree? > Usually trace events go in through their subsystem, but since this one only touches the include/trace/events/ directory, I could pull it in too. -- Steve
[toc] | [prev] | [standalone]
Back to top | Article view | linux.kernel
csiph-web