From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f51.google.com (mail-pb0-f51.google.com [209.85.160.51]) by kanga.kvack.org (Postfix) with ESMTP id 693E56B0031 for ; Fri, 14 Feb 2014 18:15:55 -0500 (EST) Received: by mail-pb0-f51.google.com with SMTP id un15so12899329pbc.24 for ; Fri, 14 Feb 2014 15:15:55 -0800 (PST) Received: from mail-pa0-x22b.google.com (mail-pa0-x22b.google.com [2607:f8b0:400e:c03::22b]) by mx.google.com with ESMTPS id l8si7294185paa.257.2014.02.14.15.15.53 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 14 Feb 2014 15:15:54 -0800 (PST) Received: by mail-pa0-f43.google.com with SMTP id rd3so12876384pab.16 for ; Fri, 14 Feb 2014 15:15:53 -0800 (PST) Date: Fri, 14 Feb 2014 15:15:47 -0800 (PST) From: David Rientjes Subject: Re: [PATCH 1/9] slab: add unlikely macro to help compiler In-Reply-To: <1392361043-22420-2-git-send-email-iamjoonsoo.kim@lge.com> Message-ID: References: <1392361043-22420-1-git-send-email-iamjoonsoo.kim@lge.com> <1392361043-22420-2-git-send-email-iamjoonsoo.kim@lge.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Joonsoo Kim Cc: Pekka Enberg , Christoph Lameter , Andrew Morton , Wanpeng Li , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Joonsoo Kim On Fri, 14 Feb 2014, Joonsoo Kim wrote: > slab_should_failslab() is called on every allocation, so to optimize it > is reasonable. We normally don't allocate from kmem_cache. It is just > used when new kmem_cache is created, so it's very rare case. Therefore, > add unlikely macro to help compiler optimization. > > Signed-off-by: Joonsoo Kim Acked-by: David Rientjes -- 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