From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f172.google.com (mail-wi0-f172.google.com [209.85.212.172]) by kanga.kvack.org (Postfix) with ESMTP id 811156B0031 for ; Thu, 10 Jul 2014 08:01:26 -0400 (EDT) Received: by mail-wi0-f172.google.com with SMTP id hi2so4405720wib.17 for ; Thu, 10 Jul 2014 05:01:25 -0700 (PDT) Received: from zene.cmpxchg.org (zene.cmpxchg.org. [2a01:238:4224:fa00:ca1f:9ef3:caee:a2bd]) by mx.google.com with ESMTPS id mc10si12316773wic.84.2014.07.10.05.01.25 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Thu, 10 Jul 2014 05:01:25 -0700 (PDT) Date: Thu, 10 Jul 2014 08:01:20 -0400 From: Johannes Weiner Subject: Re: [PATCH 1/6] mm: pagemap: Avoid unnecessary overhead when tracepoints are deactivated Message-ID: <20140710120120.GI29639@cmpxchg.org> References: <1404893588-21371-1-git-send-email-mgorman@suse.de> <1404893588-21371-2-git-send-email-mgorman@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1404893588-21371-2-git-send-email-mgorman@suse.de> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman Cc: Andrew Morton , Linux Kernel , Linux-MM , Linux-FSDevel On Wed, Jul 09, 2014 at 09:13:03AM +0100, Mel Gorman wrote: > The LRU insertion and activate tracepoints take PFN as a parameter forcing > the overhead to the caller. Move the overhead to the tracepoint fast-assign > method to ensure the cost is only incurred when the tracepoint is active. > > Signed-off-by: Mel Gorman Acked-by: Johannes Weiner -- 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