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From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
	Paul Mackerras <paulus@samba.org>,
	peterz@infradead.org
Cc: dev@codyps.com, <linux-kernel@vger.kernel.org>,
	linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v2 09/10] powerpc/hv-24x7: Define update_event_count()
Date: Mon, 30 Mar 2015 18:53:46 -0700	[thread overview]
Message-ID: <1427766828-771-10-git-send-email-sukadev@linux.vnet.ibm.com> (raw)
In-Reply-To: <1427766828-771-1-git-send-email-sukadev@linux.vnet.ibm.com>

Move the code to update an event count into a new function,
update_event_count().

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
---
 arch/powerpc/perf/hv-24x7.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 676fb2f9..cf82026 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -1172,16 +1172,22 @@ static u64 h_24x7_get_value(struct perf_event *event)
 	return ct;
 }
 
-static void h_24x7_event_read(struct perf_event *event)
+static void update_event_count(struct perf_event *event, u64 now)
 {
 	s64 prev;
-	u64 now;
 
-	now = h_24x7_get_value(event);
 	prev = local64_xchg(&event->hw.prev_count, now);
 	local64_add(now - prev, &event->count);
 }
 
+static void h_24x7_event_read(struct perf_event *event)
+{
+	u64 now;
+
+	now = h_24x7_get_value(event);
+	update_event_count(event, now);
+}
+
 static void h_24x7_event_start(struct perf_event *event, int flags)
 {
 	if (flags & PERF_EF_RELOAD)
-- 
1.8.3.1


  parent reply	other threads:[~2015-03-31  1:55 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-31  1:53 [PATCH v2 00/10] powerpc/hv-24x7: Reorganize single_24x7_request() Sukadev Bhattiprolu
2015-03-31  1:53 ` [PATCH v2 01/10] powerpc/hv-24x7: Modify definition of request and result buffers Sukadev Bhattiprolu
2015-03-31  1:53 ` [PATCH v2 02/10] powerpc/hv24x7: Remove unnecessary parameter Sukadev Bhattiprolu
2015-03-31  1:53 ` [PATCH v2 03/10] perf/hv24x7: Use pr_devel() to log message Sukadev Bhattiprolu
2015-03-31  1:53 ` [PATCH v2 04/10] powerpc/hv-24x7: Drop event_24x7_request() Sukadev Bhattiprolu
2015-03-31  1:53 ` [PATCH v2 05/10] powerpc/hv24x7: Move debug prints to separate function Sukadev Bhattiprolu
2015-03-31  1:53 ` [PATCH v2 06/10] powerpc/hv-24x7: Rename hv_24x7_event_update Sukadev Bhattiprolu
2015-03-31  1:53 ` [PATCH v2 07/10] powerpc/hv-24x7: Define add_event_to_24x7_request() Sukadev Bhattiprolu
2015-03-31  1:53 ` [PATCH v2 08/10] perf/hv24x7: Whitespace cleanup Sukadev Bhattiprolu
2015-03-31  3:08   ` Joe Perches
2015-04-01 18:26     ` Sukadev Bhattiprolu
2015-03-31  1:53 ` Sukadev Bhattiprolu [this message]
2015-03-31  1:53 ` [PATCH v2 10/10] powerpc/hv-24x7: Break up single_24x7_request Sukadev Bhattiprolu

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