From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C138C433EF for ; Fri, 1 Jul 2022 14:37:05 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D9FB76B0071; Fri, 1 Jul 2022 10:37:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D4F936B0073; Fri, 1 Jul 2022 10:37:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C65266B0074; Fri, 1 Jul 2022 10:37:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id B73EA6B0071 for ; Fri, 1 Jul 2022 10:37:04 -0400 (EDT) Received: from smtpin08.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 865FB3521C for ; Fri, 1 Jul 2022 14:37:04 +0000 (UTC) X-FDA: 79638783168.08.50414D1 Received: from gentwo.de (gentwo.de [161.97.139.209]) by imf13.hostedemail.com (Postfix) with ESMTP id 2DD1C2003D for ; Fri, 1 Jul 2022 14:37:02 +0000 (UTC) Received: by gentwo.de (Postfix, from userid 1001) id 8697BB002C1; Fri, 1 Jul 2022 16:37:00 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gentwo.de; s=default; t=1656686220; bh=8Wxm73UmmLHbOCjpZAmjhNsfORK12itldNucpTrigH0=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=KRVgSWmi0JL9+POJHf7ZUTzfyXa5xNcZv1AcqaybbjpH5oZfLoqIv2wyOFnbeHB+P Ew15h0MaxktmLPVttReMUE1+tBEicirLMIVvWaGtKyVf9mzom1ZxHiYyKHwqfp/Z1h CN2TRH7x9D5Bjacv5KmiDx9NaPjbTgFXCdxzS69Ot1r7HPn+SG1dMz14seMBY6wpnm 9vqeWZLHRwMO1DmxSGOmiaDe3Q12taUjxYtCD/9QqEdvSArs9gRDX1QISEZb0A8NfV +R3HkojAef1HnELIlOFUE0d1DJV+Gmg6LPrMFYfCHimoQ3sENKR+TVu50K6Di2gmVo pwT+HrlsGL+UA== Received: from localhost (localhost [127.0.0.1]) by gentwo.de (Postfix) with ESMTP id 8558BB00128; Fri, 1 Jul 2022 16:37:00 +0200 (CEST) Date: Fri, 1 Jul 2022 16:37:00 +0200 (CEST) From: Christoph Lameter To: Feng Tang cc: Andrew Morton , Pekka Enberg , David Rientjes , Joonsoo Kim , Vlastimil Babka , Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-mm@kvack.org, linux-kernel@vger.kernel.org, dave.hansen@intel.com, Robin Murphy , John Garry Subject: Re: [PATCH v1] mm/slub: enable debugging memory wasting of kmalloc In-Reply-To: <20220701135954.45045-1-feng.tang@intel.com> Message-ID: References: <20220701135954.45045-1-feng.tang@intel.com> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1656686223; a=rsa-sha256; cv=none; b=Xb61kDgxyIAijWKxUVuSBno7tJEHYRD57o2Gg/lDu+QSyhN8fjCpcLxVf5U0TNTrbP0bg0 fw8EVBaXb8/XIDUMJUl01fEBxgyeQHxlHQva51+A4hJkPuGvwyQ1H11BwKAxiA0zF90nT9 BjVMpYwLUYUFVSUzhMn+RITj+IBL1qA= ARC-Authentication-Results: i=1; imf13.hostedemail.com; dkim=pass header.d=gentwo.de header.s=default header.b=KRVgSWmi; dmarc=pass (policy=none) header.from=gentwo.de; spf=pass (imf13.hostedemail.com: domain of cl@gentwo.de designates 161.97.139.209 as permitted sender) smtp.mailfrom=cl@gentwo.de ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1656686223; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=DeJkvTq0UbNRoNHEQKxApDspcsdPZeqRiLVALTe0Y50=; b=16xd4Rz/DIJ17T0QGrQ7bSJYmSFMMI7cKkzWyNL27mfGS28ANlN6rJ+0068j7/YwO3rc1R KSAVcXE1iMDn884Y5hoFv7N++6MW5wxnBx7WIUUjxRNZqLwu3dbwC/B8DxHx/6Oe/fIhG0 vAlWnGTD1nSKnWLBkgCqLGKFeA6OSPA= X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 2DD1C2003D Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=gentwo.de header.s=default header.b=KRVgSWmi; dmarc=pass (policy=none) header.from=gentwo.de; spf=pass (imf13.hostedemail.com: domain of cl@gentwo.de designates 161.97.139.209 as permitted sender) smtp.mailfrom=cl@gentwo.de X-Rspam-User: X-Stat-Signature: ehearpcjkmwod8qiq1zdrf1y4kzuo1wj X-HE-Tag: 1656686222-946115 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, 1 Jul 2022, Feng Tang wrote: > static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node, > - unsigned long addr, struct kmem_cache_cpu *c) > + unsigned long addr, struct kmem_cache_cpu *c, unsigned int orig_size) > { It would be good to avoid expanding the basic slab handling functions for kmalloc. Can we restrict the mods to the kmalloc related functions?