From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f52.google.com (mail-pa0-f52.google.com [209.85.220.52]) by kanga.kvack.org (Postfix) with ESMTP id B00B56B0257 for ; Wed, 9 Dec 2015 16:42:29 -0500 (EST) Received: by pacwq6 with SMTP id wq6so35724672pac.1 for ; Wed, 09 Dec 2015 13:42:29 -0800 (PST) Received: from mail-pa0-x236.google.com (mail-pa0-x236.google.com. [2607:f8b0:400e:c03::236]) by mx.google.com with ESMTPS id c10si15119524pat.36.2015.12.09.13.42.25 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 09 Dec 2015 13:42:25 -0800 (PST) Received: by pacej9 with SMTP id ej9so35940672pac.2 for ; Wed, 09 Dec 2015 13:42:25 -0800 (PST) From: Yang Shi Subject: [PATCH v5 4/7] mips: mm/gup: add gup trace points Date: Wed, 9 Dec 2015 13:22:28 -0800 Message-Id: <1449696151-4195-5-git-send-email-yang.shi@linaro.org> In-Reply-To: <1449696151-4195-1-git-send-email-yang.shi@linaro.org> References: <1449696151-4195-1-git-send-email-yang.shi@linaro.org> Sender: owner-linux-mm@kvack.org List-ID: 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-mips@linux-mips.org Cc: linux-mips@linux-mips.org Acked-by: Ralf Baechle Signed-off-by: Yang Shi --- arch/mips/mm/gup.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c index 349995d..7d90883 100644 --- a/arch/mips/mm/gup.c +++ b/arch/mips/mm/gup.c @@ -15,6 +15,8 @@ #include #include +#include + static inline pte_t gup_get_pte(pte_t *ptep) { #if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) @@ -211,6 +213,8 @@ 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); + /* * XXX: batch / limit 'nr', to avoid large irq off latency * needs some instrumenting to determine the common sizes used by @@ -291,6 +295,8 @@ 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; slow: -- 2.0.2 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org