Peter's email is bouncing. Matt, can you take this one?
regards,
dan carpenter
On Fri, May 30, 2014 at 11:52:52AM +0300, Dan Carpenter wrote:
> tree: git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/linux.git
> cqm/pj
> head: f2526b7e5c57b422fe3615aaeb637700cc0221f7
> commit: b531f858f8f20e73b0a70f1dbd5b856876bb335e [3/7] cgroup: Add new
> cacheqos cgroup subsys to support Cache QoS Monitoring
>
> >> kernel/sched/cacheqos.c:107:2-8: preceding lock on line 104
> --
> >> arch/x86/kernel/cpu/perf_event_intel_uncore.c:1685:2-8: preceding lock on
> >> line 1658
>
> git remote add mfleming
> git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/linux.git
> git remote update mfleming
> git checkout b531f858f8f20e73b0a70f1dbd5b856876bb335e
> vim +107 kernel/sched/cacheqos.c
>
> b531f858 Peter P Waskiewicz Jr 2014-01-03 98
> b531f858 Peter P Waskiewicz Jr 2014-01-03 99 static int
> cacheqos_deallocate_rmid(struct cacheqos *cq)
> b531f858 Peter P Waskiewicz Jr 2014-01-03 100 {
> b531f858 Peter P Waskiewicz Jr 2014-01-03 101 struct cacheqos
> *cq_parent = parent_cacheqos(cq);
> b531f858 Peter P Waskiewicz Jr 2014-01-03 102 int err;
> b531f858 Peter P Waskiewicz Jr 2014-01-03 103
> b531f858 Peter P Waskiewicz Jr 2014-01-03 @104
> mutex_lock(&cacheqos_mutex);
> b531f858 Peter P Waskiewicz Jr 2014-01-03 105 err =
> cacheqos_move_rmid_to_unused_list(cq);
> b531f858 Peter P Waskiewicz Jr 2014-01-03 106 if (err)
> b531f858 Peter P Waskiewicz Jr 2014-01-03 @107 return err;
> b531f858 Peter P Waskiewicz Jr 2014-01-03 108 /* assign parent's rmid
> to cgroup */
> b531f858 Peter P Waskiewicz Jr 2014-01-03 109 cq->monitor_cache =
> false;
> b531f858 Peter P Waskiewicz Jr 2014-01-03 110 cq->rmid =
> cq_parent->rmid;
>
> ---
> 0-DAY kernel build testing backend Open Source Technology Center
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