From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.parallels.com (mx2.parallels.com [64.131.90.16]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 727BA2C0089 for ; Wed, 4 Jul 2012 22:43:35 +1000 (EST) Message-ID: <4FF439D0.1000603@parallels.com> Date: Wed, 4 Jul 2012 16:40:48 +0400 From: Glauber Costa MIME-Version: 1.0 To: Li Zhong Subject: Re: [PATCH powerpc 2/2] kfree the cache name of pgtable cache if SLUB is used References: <1340617984.13778.37.camel@ThinkPad-T420> <1340618099.13778.39.camel@ThinkPad-T420> <1341392420.18505.41.camel@ThinkPad-T420> In-Reply-To: <1341392420.18505.41.camel@ThinkPad-T420> Content-Type: text/plain; charset="UTF-8" Cc: LKML , Pekka Enberg , linux-mm , Paul Mackerras , Matt Mackall , Christoph Lameter , PowerPC email list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 07/04/2012 01:00 PM, Li Zhong wrote: > On Tue, 2012-07-03 at 15:36 -0500, Christoph Lameter wrote: >> > Looking through the emails it seems that there is an issue with alias >> > strings. > To be more precise, there seems no big issue currently. I just wanted to > make following usage of kmem_cache_create (SLUB) possible: > > name = some string kmalloced > kmem_cache_create(name, ...) > kfree(name); Out of curiosity: Why? This is not (currently) possible with the other allocators (may change with christoph's unification patches), so you would be making your code slub-dependent. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx127.postini.com [74.125.245.127]) by kanga.kvack.org (Postfix) with SMTP id CB7356B005C for ; Wed, 4 Jul 2012 08:43:34 -0400 (EDT) Message-ID: <4FF439D0.1000603@parallels.com> Date: Wed, 4 Jul 2012 16:40:48 +0400 From: Glauber Costa MIME-Version: 1.0 Subject: Re: [PATCH powerpc 2/2] kfree the cache name of pgtable cache if SLUB is used References: <1340617984.13778.37.camel@ThinkPad-T420> <1340618099.13778.39.camel@ThinkPad-T420> <1341392420.18505.41.camel@ThinkPad-T420> In-Reply-To: <1341392420.18505.41.camel@ThinkPad-T420> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Li Zhong Cc: Christoph Lameter , LKML , Pekka Enberg , Matt Mackall , Benjamin Herrenschmidt , Paul Mackerras , linux-mm , PowerPC email list On 07/04/2012 01:00 PM, Li Zhong wrote: > On Tue, 2012-07-03 at 15:36 -0500, Christoph Lameter wrote: >> > Looking through the emails it seems that there is an issue with alias >> > strings. > To be more precise, there seems no big issue currently. I just wanted to > make following usage of kmem_cache_create (SLUB) possible: > > name = some string kmalloced > kmem_cache_create(name, ...) > kfree(name); Out of curiosity: Why? This is not (currently) possible with the other allocators (may change with christoph's unification patches), so you would be making your code slub-dependent. -- 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 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751674Ab2GDMnm (ORCPT ); Wed, 4 Jul 2012 08:43:42 -0400 Received: from mx2.parallels.com ([64.131.90.16]:37055 "EHLO mx2.parallels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750869Ab2GDMnj (ORCPT ); Wed, 4 Jul 2012 08:43:39 -0400 Message-ID: <4FF439D0.1000603@parallels.com> Date: Wed, 4 Jul 2012 16:40:48 +0400 From: Glauber Costa User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 MIME-Version: 1.0 To: Li Zhong CC: Christoph Lameter , LKML , Pekka Enberg , Matt Mackall , Benjamin Herrenschmidt , Paul Mackerras , linux-mm , PowerPC email list Subject: Re: [PATCH powerpc 2/2] kfree the cache name of pgtable cache if SLUB is used References: <1340617984.13778.37.camel@ThinkPad-T420> <1340618099.13778.39.camel@ThinkPad-T420> <1341392420.18505.41.camel@ThinkPad-T420> In-Reply-To: <1341392420.18505.41.camel@ThinkPad-T420> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/04/2012 01:00 PM, Li Zhong wrote: > On Tue, 2012-07-03 at 15:36 -0500, Christoph Lameter wrote: >> > Looking through the emails it seems that there is an issue with alias >> > strings. > To be more precise, there seems no big issue currently. I just wanted to > make following usage of kmem_cache_create (SLUB) possible: > > name = some string kmalloced > kmem_cache_create(name, ...) > kfree(name); Out of curiosity: Why? This is not (currently) possible with the other allocators (may change with christoph's unification patches), so you would be making your code slub-dependent.