From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760626AbYGJSH1 (ORCPT ); Thu, 10 Jul 2008 14:07:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760177AbYGJSGw (ORCPT ); Thu, 10 Jul 2008 14:06:52 -0400 Received: from [194.117.236.238] ([194.117.236.238]:58660 "EHLO heracles.linux360.ro" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1760169AbYGJSGv (ORCPT ); Thu, 10 Jul 2008 14:06:51 -0400 Date: Thu, 10 Jul 2008 21:06:06 +0300 From: Eduard - Gabriel Munteanu To: penberg@cs.helsinki.fi Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 2/5] Add new GFP flag __GFP_NOTRACE. Message-ID: <20080710210606.65e240f4@linux360.ro> In-Reply-To: <1215712946-23572-2-git-send-email-eduard.munteanu@linux360.ro> References: <1215712946-23572-1-git-send-email-eduard.munteanu@linux360.ro> <1215712946-23572-2-git-send-email-eduard.munteanu@linux360.ro> X-Mailer: Claws Mail 3.4.0 (GTK+ 2.12.1; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org __GFP_NOTRACE turns off allocator tracing for that particular allocation. This is used by kmemtrace to correctly classify different kinds of allocations, without recording one event multiple times. Example: SLAB's kmalloc() calls kmem_cache_alloc(), but we want to record this only as a kmalloc. Signed-off-by: Eduard - Gabriel Munteanu --- include/linux/gfp.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/include/linux/gfp.h b/include/linux/gfp.h index b414be3..693a5a9 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -43,6 +43,7 @@ struct vm_area_struct; #define __GFP_REPEAT ((__force gfp_t)0x400u) /* See above */ #define __GFP_NOFAIL ((__force gfp_t)0x800u) /* See above */ #define __GFP_NORETRY ((__force gfp_t)0x1000u)/* See above */ +#define __GFP_NOTRACE ((__force gfp_t)0x2000u) /* Inhibit tracing this. */ #define __GFP_COMP ((__force gfp_t)0x4000u)/* Add compound page metadata */ #define __GFP_ZERO ((__force gfp_t)0x8000u)/* Return zeroed page on success */ #define __GFP_NOMEMALLOC ((__force gfp_t)0x10000u) /* Don't use emergency reserves */ -- 1.5.6.1