From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f50.google.com (mail-pa0-f50.google.com [209.85.220.50]) by kanga.kvack.org (Postfix) with ESMTP id 07AC1828DF for ; Wed, 13 Jan 2016 13:11:50 -0500 (EST) Received: by mail-pa0-f50.google.com with SMTP id ho8so101316687pac.2 for ; Wed, 13 Jan 2016 10:11:50 -0800 (PST) Received: from mail-pa0-x22c.google.com (mail-pa0-x22c.google.com. [2607:f8b0:400e:c03::22c]) by mx.google.com with ESMTPS id r70si3373977pfr.123.2016.01.13.10.11.49 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 13 Jan 2016 10:11:49 -0800 (PST) Received: by mail-pa0-x22c.google.com with SMTP id ho8so101316545pac.2 for ; Wed, 13 Jan 2016 10:11:49 -0800 (PST) Subject: Re: [PATCH v5 3/7] x86: mm/gup: add gup trace points References: <1449696151-4195-1-git-send-email-yang.shi@linaro.org> <1449696151-4195-4-git-send-email-yang.shi@linaro.org> From: "Shi, Yang" Message-ID: <56969363.9010007@linaro.org> Date: Wed, 13 Jan 2016 10:11:47 -0800 MIME-Version: 1.0 In-Reply-To: <1449696151-4195-4-git-send-email-yang.shi@linaro.org> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit 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, Thomas Gleixner , "H. Peter Anvin" , x86@kernel.org Hi folks, Any comment for this one? The tracing part review has been done. Thanks, Yang On 12/9/2015 1:22 PM, Yang Shi wrote: > Cc: Thomas Gleixner > Cc: Ingo Molnar > Cc: "H. Peter Anvin" > Cc: x86@kernel.org > Signed-off-by: Yang Shi > --- > arch/x86/mm/gup.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c > index ae9a37b..df5f3ab 100644 > --- a/arch/x86/mm/gup.c > +++ b/arch/x86/mm/gup.c > @@ -12,6 +12,8 @@ > > #include > > +#include > + > static inline pte_t gup_get_pte(pte_t *ptep) > { > #ifndef CONFIG_X86_PAE > @@ -270,6 +272,8 @@ 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 > @@ -373,6 +377,8 @@ 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; > > -- 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