From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: paulus <paulus@samba.org>,
stephane eranian <eranian@googlemail.com>,
Robert Richter <robert.richter@amd.com>,
Will Deacon <will.deacon@arm.com>,
Paul Mundt <lethal@linux-sh.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
Cyrill Gorcunov <gorcunov@gmail.com>,
Lin Ming <ming.m.lin@intel.com>,
Yanmin <yanmin_zhang@linux.intel.com>,
Deng-Cheng Zhu <dengcheng.zhu@gmail.com>,
David Miller <davem@davemloft.net>, Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [RFC][PATCH 01/19] perf: Fix CPU hotplug
Date: Tue, 07 Sep 2010 18:46:34 +0200 [thread overview]
Message-ID: <20100907165011.286581454@chello.nl> (raw)
In-Reply-To: 20100907164633.879932949@chello.nl
[-- Attachment #1: perf-x86-fix-cpuhotplug.patch --]
[-- Type: text/plain, Size: 789 bytes --]
Since we have UP_PREPARE, we should also have UP_CANCELED.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
kernel/perf_event.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Index: linux-2.6/kernel/perf_event.c
===================================================================
--- linux-2.6.orig/kernel/perf_event.c
+++ linux-2.6/kernel/perf_event.c
@@ -5743,15 +5743,15 @@ perf_cpu_notify(struct notifier_block *s
{
unsigned int cpu = (long)hcpu;
- switch (action) {
+ switch (action & ~CPU_TASKS_FROZEN) {
case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
+ case CPU_DOWN_FAILED:
perf_event_init_cpu(cpu);
break;
+ case CPU_UP_CANCELED:
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
perf_event_exit_cpu(cpu);
break;
next prev parent reply other threads:[~2010-09-07 16:56 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-07 16:46 [RFC][PATCH 00/19] perf pmu interface changes -v4 Peter Zijlstra
2010-09-07 16:46 ` Peter Zijlstra [this message]
2010-09-07 16:46 ` [RFC][PATCH 02/19] perf: deconstify struct pmu Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 03/19] perf: register pmu implementations Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 04/19] perf: Unindent labels Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 05/19] perf: Reduce perf_disable() usage Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 06/19] perf: Per PMU disable Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 07/19] perf: Default PMU ops Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 08/19] perf: Shrink hw_perf_event Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 09/19] perf: Rework the PMU methods Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 10/19] perf: Remove the sysfs bits Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 11/19] perf: Separate find_get_context() from event initialization Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 12/19] perf: Remove the swevent hash-table from the cpu context Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 13/19] perf: Per cpu-context rotation timer Peter Zijlstra
2010-09-07 17:07 ` Peter Zijlstra
2010-09-07 17:33 ` Thomas Gleixner
2010-09-07 17:36 ` Peter Zijlstra
2010-09-08 13:50 ` Thomas Gleixner
2010-09-08 13:56 ` Peter Zijlstra
2010-09-07 17:08 ` Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 14/19] perf: Per-pmu-per-cpu contexts Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 15/19] perf: Move some code around Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 16/19] perf: Clean up perf_event_context allocation Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 17/19] perf: Multiple task contexts Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 18/19] perf: Provide a separate task context for swevents Peter Zijlstra
2010-09-07 16:46 ` [RFC][PATCH 19/19] perf: Optimize context ops Peter Zijlstra
2010-09-10 4:39 ` [RFC][PATCH 00/19] perf pmu interface changes -v4 Paul Mackerras
2010-09-10 7:43 ` Peter Zijlstra
2010-09-14 16:56 ` Peter Zijlstra
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