linux-kernel - [PATCH V2 6/7] sh: mm/gup: add gup trace points

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Message-Id: <1449096813-22436-7-git-send-email-yang.shi@linaro.org>
Date:	Wed,  2 Dec 2015 14:53:32 -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,
	linux-sh@...r.kernel.org
Subject: [PATCH V2 6/7] sh: mm/gup: add gup trace points

Cc: linux-sh@...r.kernel.org
Signed-off-by: Yang Shi <yang.shi@...aro.org>
---
 arch/sh/mm/gup.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/sh/mm/gup.c b/arch/sh/mm/gup.c
index e7af6a6..6df3e97 100644
--- a/arch/sh/mm/gup.c
+++ b/arch/sh/mm/gup.c
@@ -12,6 +12,10 @@
 #include <linux/mm.h>
 #include <linux/vmstat.h>
 #include <linux/highmem.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/gup.h>
+
 #include <asm/pgtable.h>
 
 static inline pte_t gup_get_pte(pte_t *ptep)
@@ -178,6 +182,8 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 					(void __user *)start, len)))
 		return 0;
 
+	trace_gup_get_user_pages_fast(start, nr_pages, write, pages);
+
 	/*
 	 * This doesn't prevent pagetable teardown, but does prevent
 	 * the pagetables and pages from being freed.
@@ -231,6 +237,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	if (end < start)
 		goto slow_irqon;
 
+	trace_gup_get_user_pages_fast(start, nr_pages, write, pages);
+
 	local_irq_disable();
 	pgdp = pgd_offset(mm, addr);
 	do {
-- 
2.0.2

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