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[147.11.216.82]) by smtp.gmail.com with ESMTPSA id sz9sm108777pab.13.2015.12.01.15.26.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Dec 2015 15:26:02 -0800 (PST) From: Yang Shi 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, Thomas Gleixner , "H. Peter Anvin" , x86@kernel.org Subject: [PATCH 3/7] x86: mm/gup: add gup trace points Date: Tue, 1 Dec 2015 15:06:13 -0800 Message-Id: <1449011177-30686-4-git-send-email-yang.shi@linaro.org> X-Mailer: git-send-email 2.0.2 In-Reply-To: <1449011177-30686-1-git-send-email-yang.shi@linaro.org> References: <1449011177-30686-1-git-send-email-yang.shi@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: x86@kernel.org Signed-off-by: Yang Shi --- arch/x86/mm/gup.c | 7 +++++++ 1 file changed, 7 insertions(+) -- 2.0.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c index ae9a37b..ed6cca9 100644 --- a/arch/x86/mm/gup.c +++ b/arch/x86/mm/gup.c @@ -10,6 +10,9 @@ #include #include +#define CREATE_TRACE_POINTS +#include > + #include static inline pte_t gup_get_pte(pte_t *ptep) @@ -270,6 +273,8 @@ 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); + /* * XXX: batch / limit 'nr', to avoid large irq off latency * needs some instrumenting to determine the common sizes used by @@ -342,6 +347,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, goto slow_irqon; #endif + trace_gup_get_user_pages_fast(start, nr_pages, write, pages); + /* * XXX: batch / limit 'nr', to avoid large irq off latency * needs some instrumenting to determine the common sizes used by