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[2620:137:e000::1:20]) by mx.google.com with ESMTP id p26-20020a056402501a00b0045f802c0b98si9377877eda.443.2022.11.21.06.24.28; Mon, 21 Nov 2022 06:24:55 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b="oE/lX1Co"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229984AbiKUNx3 (ORCPT + 91 others); Mon, 21 Nov 2022 08:53:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229640AbiKUNx1 (ORCPT ); Mon, 21 Nov 2022 08:53:27 -0500 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 855F61EECB for ; Mon, 21 Nov 2022 05:53:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1669038806; x=1700574806; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=VxqTtM17BmtYe97UGlIkeXzguZmoQW3WI6yuaWgDYSE=; b=oE/lX1CojWbEkBQaUY5u/UQtNZcrQZse7JrviaSBsAwjQfvVwcCbuk8b 2CRhFfo6r4G6pNloOiJ0sfi4SipGEMeaX1taQpO0L10UxbKoia7UWeWXd AFbwATVGpODMJQr15WZC39OUDxtjU/X7zxoQq53EpxIYKPaLt5/uYMgp1 AiUQ9r/O0bq5TPckSVZfV3mzEtsWH//LuvpXpDUQnWPyjZQgHR7Zqr0MT r0HzxZf2Cb4Q6/w+cXPF1sO1UFNLkjNgP41TSAzOOAcfQgqkbopfvzdQz T5Nz3mEp8AA6WRlKiDdY7HSuE0Mx2M5ThMFY1sIKh9+U5lWJisC+m2fg4 w==; X-IronPort-AV: E=McAfee;i="6500,9779,10538"; a="312261154" X-IronPort-AV: E=Sophos;i="5.96,181,1665471600"; d="scan'208";a="312261154" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Nov 2022 05:53:26 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10537"; a="886125081" X-IronPort-AV: E=Sophos;i="5.96,181,1665471600"; d="scan'208";a="886125081" Received: from feng-clx.sh.intel.com ([10.238.200.228]) by fmsmga006.fm.intel.com with ESMTP; 21 Nov 2022 05:53:22 -0800 From: Feng Tang To: Andrew Morton , Vlastimil Babka , Christoph Lameter , Pekka Enberg , David Rientjes , Joonsoo Kim , Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Andrey Konovalov , Dmitry Vyukov , Andrey Ryabinin , Alexander Potapenko , Vincenzo Frascino Cc: linux-mm@kvack.org, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, Feng Tang Subject: [PATCH -next 1/2] mm/slab: add is_kmalloc_cache() helper macro Date: Mon, 21 Nov 2022 21:50:23 +0800 Message-Id: <20221121135024.1655240-1-feng.tang@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org commit 6edf2576a6cc ("mm/slub: enable debugging memory wasting of kmalloc") introduces 'SLAB_KMALLOC' bit specifying whether a kmem_cache is a kmalloc cache for slab/slub (slob doesn't have dedicated kmalloc caches). Add a helper macro for other components like kasan to simplify code. Signed-off-by: Feng Tang --- include/linux/slab.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/slab.h b/include/linux/slab.h index 1c670c16c737..ee6499088ad3 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -758,6 +758,12 @@ extern void kvfree_sensitive(const void *addr, size_t len); unsigned int kmem_cache_size(struct kmem_cache *s); +#ifndef CONFIG_SLOB +#define is_kmalloc_cache(s) ((s)->flags & SLAB_KMALLOC) +#else +#define is_kmalloc_cache(s) (false) +#endif + /** * kmalloc_size_roundup - Report allocation bucket size for the given size * -- 2.34.1