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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62D1EC433EF for ; Mon, 14 Mar 2022 16:57:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236064AbiCNQ6u (ORCPT ); Mon, 14 Mar 2022 12:58:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43546 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234996AbiCNQ6n (ORCPT ); Mon, 14 Mar 2022 12:58:43 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 137223A73B for ; Mon, 14 Mar 2022 09:57:34 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id B45C41F380; Mon, 14 Mar 2022 16:57:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1647277052; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=EjQj53Mw0YNh700fK1Icsq6ho1Eko/PdYkCQNR6mqrE=; b=gugqY4B+djL/nhmH2nhDAdJV9P41rQYJ2g8SWA9aCiKiiKSdP2+uGZsC4sPdnLQ8fOgSCH qSm6oJPE6pYN89aep1Xr1FKgtz60j1MreAp0B6P5lM0t/5RqEp9n8OdcaLZGDVga6OGmeo UaWZx+zlPEUkeANI0uWQ9uIAZDXJ17E= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1647277052; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=EjQj53Mw0YNh700fK1Icsq6ho1Eko/PdYkCQNR6mqrE=; b=fnCZrvmEeOA7aH1I0CkzTH1mPfrTtZJOzoyH8BmBVce8WgahkZwgQgUp/95n0M8XfYcZLU 0/4ZOUhnIT9ymwAg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 8994213B39; Mon, 14 Mar 2022 16:57:32 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id RbYpIPxzL2I+PAAAMHmgww (envelope-from ); Mon, 14 Mar 2022 16:57:32 +0000 From: Vlastimil Babka To: Andrew Morton , linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev, Mel Gorman , Matthew Wilcox , David Hildenbrand , Vlastimil Babka Subject: [PATCH 1/2] mm, fault-injection: declare should_fail_alloc_page() Date: Mon, 14 Mar 2022 17:57:23 +0100 Message-Id: <20220314165724.16071-1-vbabka@suse.cz> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1119; h=from:subject; bh=QGoL6qUI09dpG/35dBQDgHemHz/FCAGmqGRnNq+rios=; b=owEBbQGS/pANAwAIAeAhynPxiakQAcsmYgBiL3Pyn7opOzfCBHWa660u1sfUHhTXqveiKMNIEZ6Q pT5b1QiJATMEAAEIAB0WIQSNS5MBqTXjGL5IXszgIcpz8YmpEAUCYi9z8gAKCRDgIcpz8YmpEMjmCA C9dqVWnbqOG9kRwx4yBIUGJqbzVqSalN5zHjMGiyDG9PUa8Mnsw9v6WJnWG1gaXlTYM2UMkddxUri0 kEpkTc6qNrYCiVzwkr8MVCFU9JEDYmIkPz/EBljtAn0cjEZnHhcM5BVQeJ5J48dZzz25H4PgSc1bW5 FKbXmRop8pWwllwouudA5m0JJrLP+IeNyEC/GPxsTJGWqpiCFEmBpdJSJWDxoCf5jEax4yqzbwKUnj jAcBl7tnK4lVHEyhafgDiTGXts1HxQWuXkWqLza096bE/p3c0aJKNWEU43yOANIOKTZN/vJ9X4Kycb ZThdDMOsM+5NMxrU4PpYv+0bfjRDxj X-Developer-Key: i=vbabka@suse.cz; a=openpgp; fpr=A940D434992C2E8E99103D50224FA7E7CC82A664 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The mm/ directory can almost fully be built with W=1, which would help in local development. One remaining issue is missing prototype for should_fail_alloc_page(). Thus add it next to the should_failslab() prototype. Note the previous attempt by commit f7173090033c ("mm/page_alloc: make should_fail_alloc_page() static") had to be reverted by commit 54aa386661fe as it caused an unresolved symbol error with CONFIG_DEBUG_INFO_BTF=y Signed-off-by: Vlastimil Babka --- include/linux/fault-inject.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h index e525f6957c49..2d04f6448cde 100644 --- a/include/linux/fault-inject.h +++ b/include/linux/fault-inject.h @@ -64,6 +64,8 @@ static inline struct dentry *fault_create_debugfs_attr(const char *name, struct kmem_cache; +bool should_fail_alloc_page(gfp_t gfp_mask, unsigned int order); + int should_failslab(struct kmem_cache *s, gfp_t gfpflags); #ifdef CONFIG_FAILSLAB extern bool __should_failslab(struct kmem_cache *s, gfp_t gfpflags); -- 2.35.1