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 v3 6/7] sh: mm/gup: add gup trace points
Date: Tue, 8 Dec 2015 11:39:54 -0800 [thread overview]
Message-ID: <1449603595-718-7-git-send-email-yang.shi@linaro.org> (raw)
In-Reply-To: <1449603595-718-1-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 | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/sh/mm/gup.c b/arch/sh/mm/gup.c
index e7af6a6..d4c9a6e 100644
--- a/arch/sh/mm/gup.c
+++ b/arch/sh/mm/gup.c
@@ -14,6 +14,9 @@
#include <linux/highmem.h>
#include <asm/pgtable.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/gup.h>
+
static inline pte_t gup_get_pte(pte_t *ptep)
{
#ifndef CONFIG_X2TLB
@@ -178,6 +181,8 @@ 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, (unsigned long) nr_pages);
+
/*
* This doesn't prevent pagetable teardown, but does prevent
* the pagetables and pages from being freed.
@@ -244,6 +249,8 @@ 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, (unsigned long) 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:[~2015-12-08 20:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-08 19:39 [RFC V3] Add gup trace points support Yang Shi
2015-12-08 19:39 ` [PATCH v3 1/7] trace/events: Add gup trace events Yang Shi
2015-12-08 19:39 ` [PATCH v3 2/7] mm/gup: add gup trace points Yang Shi
2015-12-08 20:25 ` Steven Rostedt
2015-12-08 20:58 ` Shi, Yang
2015-12-08 19:39 ` [PATCH v3 3/7] x86: " Yang Shi
2015-12-08 19:39 ` [PATCH v3 4/7] mips: " Yang Shi
2015-12-08 19:39 ` [PATCH v3 5/7] s390: " Yang Shi
2015-12-08 19:39 ` Yang Shi [this message]
2015-12-08 19:39 ` [PATCH v3 7/7] sparc64: " Yang Shi
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