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| author | Stephane Eranian <eranian@google.com> | 2014-11-17 20:06:54 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-04-02 17:33:08 +0200 |
| commit | 90413464313e00fe4975f4a0ebf25fe31d01f793 (patch) | |
| tree | cad15b8e8c58af9597b6525f32f7bede0ea14b2f /arch/x86/kernel/cpu/perf_event.c | |
| parent | 9a5e3fb52ae5458c8bf1a67129b96c39b541a582 (diff) | |
| download | op-kernel-dev-90413464313e00fe4975f4a0ebf25fe31d01f793.zip op-kernel-dev-90413464313e00fe4975f4a0ebf25fe31d01f793.tar.gz | |
perf/x86: Vectorize cpuc->kfree_on_online
Make the cpuc->kfree_on_online a vector to accommodate
more than one entry and add the second entry to be
used by a later patch.
Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Maria Dimakopoulou <maria.n.dimakopoulou@gmail.com>
Cc: bp@alien8.de
Cc: jolsa@redhat.com
Cc: kan.liang@intel.com
Link: http://lkml.kernel.org/r/1416251225-17721-3-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index 549d01d..682ef00 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -1373,11 +1373,12 @@ x86_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu) { unsigned int cpu = (long)hcpu; struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); - int ret = NOTIFY_OK; + int i, ret = NOTIFY_OK; switch (action & ~CPU_TASKS_FROZEN) { case CPU_UP_PREPARE: - cpuc->kfree_on_online = NULL; + for (i = 0 ; i < X86_PERF_KFREE_MAX; i++) + cpuc->kfree_on_online[i] = NULL; if (x86_pmu.cpu_prepare) ret = x86_pmu.cpu_prepare(cpu); break; @@ -1388,7 +1389,10 @@ x86_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu) break; case CPU_ONLINE: - kfree(cpuc->kfree_on_online); + for (i = 0 ; i < X86_PERF_KFREE_MAX; i++) { + kfree(cpuc->kfree_on_online[i]); + cpuc->kfree_on_online[i] = NULL; + } break; case CPU_DYING: |
