From: Yang Shi <yang.shi@linaro.org>
To: akpm@linux-foundation.org, rostedt@goodmis.org, mingo@redhat.com
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linaro-kernel@lists.linaro.org, yang.shi@linaro.org,
linux-sh@vger.kernel.org
Subject: [PATCH v5 6/7] sh: mm/gup: add gup trace points
Date: Wed, 9 Dec 2015 13:22:30 -0800 [thread overview]
Message-ID: <1449696151-4195-7-git-send-email-yang.shi@linaro.org> (raw)
In-Reply-To: <1449696151-4195-1-git-send-email-yang.shi@linaro.org>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Yang Shi <yang.shi@linaro.org>
---
arch/sh/mm/gup.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/sh/mm/gup.c b/arch/sh/mm/gup.c
index e7af6a6..dc80480 100644
--- a/arch/sh/mm/gup.c
+++ b/arch/sh/mm/gup.c
@@ -14,6 +14,8 @@
#include <linux/highmem.h>
#include <asm/pgtable.h>
+#include <trace/events/gup.h>
+
static inline pte_t gup_get_pte(pte_t *ptep)
{
#ifndef CONFIG_X2TLB
@@ -178,6 +180,8 @@ 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);
+
/*
* This doesn't prevent pagetable teardown, but does prevent
* the pagetables and pages from being freed.
@@ -244,6 +248,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
} while (pgdp++, addr = next, addr != end);
local_irq_enable();
+ trace_gup_get_user_pages_fast(start, nr_pages);
+
VM_BUG_ON(nr != (end - start) >> PAGE_SHIFT);
return nr;
--
2.0.2
--
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next prev parent reply other threads:[~2015-12-09 21:42 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-09 21:22 [RFC V5] Add gup trace points support Yang Shi
2015-12-09 21:22 ` [PATCH v5 1/7] trace/events: Add gup trace events Yang Shi
2015-12-09 21:22 ` [PATCH v5 2/7] mm/gup: add gup trace points Yang Shi
2015-12-09 21:22 ` [PATCH v5 3/7] x86: " Yang Shi
2016-01-13 18:11 ` Shi, Yang
2015-12-09 21:22 ` [PATCH v5 4/7] mips: " Yang Shi
2015-12-09 21:22 ` [PATCH v5 5/7] s390: " Yang Shi
2016-01-13 18:12 ` Shi, Yang
2016-01-14 7:45 ` Heiko Carstens
2015-12-09 21:22 ` Yang Shi [this message]
2015-12-09 21:22 ` [PATCH v5 7/7] sparc64: " Yang Shi
2016-01-13 18:13 ` Shi, Yang
2016-01-13 20:21 ` David Miller
2016-01-13 20:44 ` Steven Rostedt
2016-01-12 20:00 ` [RFC V5] Add gup trace points support Shi, Yang
2016-01-12 20:10 ` Steven Rostedt
2016-01-13 18:14 ` Shi, Yang
2016-01-14 14:40 ` Steven Rostedt
2016-02-08 23:15 ` Shi, Yang
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