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authorAvi Kivity <avi@redhat.com>2011-06-29 15:42:37 (GMT)
committerIngo Molnar <mingo@elte.hu>2011-07-01 09:06:40 (GMT)
commit26ca5c11fb45ae2b2ac7e3574b8db6b3a3c7d350 (patch)
tree01f430828eaacf7ba3e0eb541f8d946f3d855696 /kernel/events
parent0af3ac1fdb9d5c297b4b07c9e0172531d42b6716 (diff)
downloadlinux-26ca5c11fb45ae2b2ac7e3574b8db6b3a3c7d350.tar.xz
perf: export perf_event_refresh() to modules
KVM needs one-shot samples, since a PMC programmed to -X will fire after X events and then again after 2^40 events (i.e. variable period). Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1309362157-6596-4-git-send-email-avi@redhat.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/events')
-rw-r--r--kernel/events/core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index ba8e0f4..0567e32 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1764,7 +1764,7 @@ out:
raw_spin_unlock_irq(&ctx->lock);
}
-static int perf_event_refresh(struct perf_event *event, int refresh)
+int perf_event_refresh(struct perf_event *event, int refresh)
{
/*
* not supported on inherited events
@@ -1777,6 +1777,7 @@ static int perf_event_refresh(struct perf_event *event, int refresh)
return 0;
}
+EXPORT_SYMBOL_GPL(perf_event_refresh);
static void ctx_sched_out(struct perf_event_context *ctx,
struct perf_cpu_context *cpuctx,