From: "Yan, Zheng" <zheng.z.yan@intel.com>
To: a.p.zijlstra@chello.nl, mingo@elte.hu, andi@firstfloor.org,
eranian@google.com, jolsa@redhat.com, ming.m.lin@intel.com,
gregkh@linuxfoundation.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 03/10] perf: Allow pmu to choose cpu on which to install event
Date: Wed, 16 May 2012 12:59:56 +0800 [thread overview]
Message-ID: <1337144403-30841-4-git-send-email-zheng.z.yan@intel.com> (raw)
In-Reply-To: <1337144403-30841-1-git-send-email-zheng.z.yan@intel.com>
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Allow the pmu->event_init callback to change event->cpu, so pmu can
choose cpu on which to install event.
Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
---
kernel/events/core.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 9fdf394..6a2d0b9 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6309,7 +6309,7 @@ SYSCALL_DEFINE5(perf_event_open,
/*
* Get the target context (task or percpu):
*/
- ctx = find_get_context(pmu, task, cpu);
+ ctx = find_get_context(pmu, task, event->cpu);
if (IS_ERR(ctx)) {
err = PTR_ERR(ctx);
goto err_alloc;
@@ -6382,16 +6382,16 @@ SYSCALL_DEFINE5(perf_event_open,
mutex_lock(&ctx->mutex);
if (move_group) {
- perf_install_in_context(ctx, group_leader, cpu);
+ perf_install_in_context(ctx, group_leader, event->cpu);
get_ctx(ctx);
list_for_each_entry(sibling, &group_leader->sibling_list,
group_entry) {
- perf_install_in_context(ctx, sibling, cpu);
+ perf_install_in_context(ctx, sibling, event->cpu);
get_ctx(ctx);
}
}
- perf_install_in_context(ctx, event, cpu);
+ perf_install_in_context(ctx, event, event->cpu);
++ctx->generation;
perf_unpin_context(ctx);
mutex_unlock(&ctx->mutex);
--
1.7.7.6
next prev parent reply other threads:[~2012-05-16 5:03 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-16 4:59 [PATCH V4 0/10] perf: Intel uncore pmu counting support Yan, Zheng
2012-05-16 4:59 ` [PATCH 01/10] perf: Export perf_assign_events Yan, Zheng
2012-05-16 4:59 ` [PATCH 02/10] perf: Avoid race between cpu hotplug and installing event Yan, Zheng
2012-05-16 4:59 ` Yan, Zheng [this message]
2012-05-16 4:59 ` [PATCH 04/10] perf: Introduce perf_pmu_migrate_context Yan, Zheng
2012-05-16 4:59 ` [PATCH 05/10] perf: Generic intel uncore support Yan, Zheng
2012-05-16 4:59 ` [PATCH 06/10] perf: Add Nehalem and Sandy Bridge " Yan, Zheng
2012-05-16 5:00 ` [PATCH 07/10] perf: Generic pci uncore device support Yan, Zheng
2012-05-16 5:00 ` [PATCH 08/10] perf: Add Sandy Bridge-EP uncore support Yan, Zheng
2012-05-16 5:00 ` [PATCH 09/10] perf tool: Make the event parser reentrantable Yan, Zheng
2012-05-16 5:00 ` [PATCH 10/10] perf tool: Add pmu event alias support Yan, Zheng
2012-05-21 7:36 ` [RFC 0/5] perf, tool: uncore related changes Jiri Olsa
2012-05-21 7:36 ` [PATCH 1/5] perf, tool: Use data struct for arg passing in event parse function Jiri Olsa
2012-05-21 7:36 ` [PATCH 2/5] perf, tool: Make the event parser reentrantable Jiri Olsa
2012-05-21 7:36 ` [PATCH 3/5] perf, tool: Add support to reuse event grammar to parse out terms Jiri Olsa
2012-05-21 7:36 ` [PATCH 4/5] perf, tool: Add pmu event alias support Jiri Olsa
2012-05-21 7:36 ` [PATCH 5/5] perf, tool: Add automated test for pure terms parsing Jiri Olsa
2012-05-21 8:22 ` [RFC 0/5] perf, tool: uncore related changes Jiri Olsa
2012-05-23 14:53 ` Stephane Eranian
2012-05-23 15:16 ` Jiri Olsa
2012-05-23 15:21 ` Stephane Eranian
2012-05-23 15:28 ` Jiri Olsa
2012-06-04 9:35 ` [PATCH V4 0/10] perf: Intel uncore pmu counting support Anshuman Khandual
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