linux-kernel - [PATCH 5/7] s390: mm/gup: add gup trace points

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Message-Id: <1449011177-30686-6-git-send-email-yang.shi@linaro.org>
Date:	Tue,  1 Dec 2015 15:06:15 -0800
From:	Yang Shi <yang.shi@...aro.org>
To:	akpm@...ux-foundation.org, rostedt@...dmis.org, mingo@...hat.com
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linaro-kernel@...ts.linaro.org, yang.shi@...aro.org,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux-s390@...r.kernel.org
Subject: [PATCH 5/7] s390: mm/gup: add gup trace points

Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Heiko Carstens <heiko.carstens@...ibm.com>
Cc: linux-s390@...r.kernel.org
Signed-off-by: Yang Shi <yang.shi@...aro.org>
---
 arch/s390/mm/gup.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index 12bbf0e..ac25e28 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -10,6 +10,10 @@
 #include <linux/vmstat.h>
 #include <linux/pagemap.h>
 #include <linux/rwsem.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/gup.h>
+
 #include <asm/pgtable.h>
 
 /*
@@ -188,6 +192,9 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	end = start + len;
 	if ((end <= start) || (end > TASK_SIZE))
 		return 0;
+
+	trace_gup_get_user_pages_fast(start, nr_pages, write, pages);
+
 	/*
 	 * local_irq_save() doesn't prevent pagetable teardown, but does
 	 * prevent the pagetables from being freed on s390.
-- 
2.0.2

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