From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yang Shi Date: Wed, 09 Dec 2015 21:22:30 +0000 Subject: [PATCH v5 6/7] sh: mm/gup: add gup trace points Message-Id: <1449696151-4195-7-git-send-email-yang.shi@linaro.org> List-Id: References: <1449696151-4195-1-git-send-email-yang.shi@linaro.org> In-Reply-To: <1449696151-4195-1-git-send-email-yang.shi@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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 Cc: linux-sh@vger.kernel.org Signed-off-by: Yang Shi --- 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 #include +#include + 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