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Date: Mon, 20 Dec 2010 21:23:09 +0530 From: Bharata B Rao <bharata.rao@...il.com> To: Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org, mathieu.desnoyers@...icios.com, torvalds@...ux-foundation.org, efault@....de, pjt@...gle.com, markus@...ppelsdorf.de, tglx@...utronix.de, oleg@...hat.com, mingo@...e.hu, linux-tip-commits@...r.kernel.org Subject: Re: [tip:sched/core] sched: Add 'autogroup' scheduling feature: automated per session task groups On Mon, Dec 20, 2010 at 9:16 PM, Bharata B Rao <bharata.rao@...il.com> wrote: > On Mon, Dec 20, 2010 at 6:49 PM, Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote: >> On Mon, 2010-12-20 at 18:38 +0530, Bharata B Rao wrote: >>> The autogroup patchset removes the display of cgroup name from >>> sched_debug output. >> >> Hrmph.. that wasn't supposed to happen, care to send a patch to fix that >> up? > > There are two aspects here: > > - Printing cgroup name for per-CPU cfs_rqs shouldn't be affected by > autogroup and the old code should work here. > - Printing cgroup name for tasks depends on task_group(), which has > been changed by autogroup patch. I haven't really looked deep into > autogroup patch, but from whatever I can gather, Mike had a reason > to remove this bit from sched_debug. The task groups created for > autogroups don't have cgroups associated with them and hence no > dentries and hence no pathnames. > > I guess we could do fix this as shown in the attached patch. I missed adding the similar bits to RT in sched_dubug.c. If this approach is reasonable, I can send the next one with RT changes included. Regards, Bharata. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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