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 D968CC433EF for ; Fri, 26 Nov 2021 15:50:42 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 46F7A6B0075; Fri, 26 Nov 2021 10:50:32 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 41D8C6B0078; Fri, 26 Nov 2021 10:50:32 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2BDFE6B007B; Fri, 26 Nov 2021 10:50:32 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0097.hostedemail.com [216.40.44.97]) by kanga.kvack.org (Postfix) with ESMTP id 192616B0075 for ; Fri, 26 Nov 2021 10:50:32 -0500 (EST) Received: from smtpin22.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id D5AE286E6F for ; Fri, 26 Nov 2021 15:50:21 +0000 (UTC) X-FDA: 78851518242.22.E5F18D7 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by imf04.hostedemail.com (Postfix) with ESMTP id D11C950000AE for ; Fri, 26 Nov 2021 15:50:16 +0000 (UTC) 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 BD4E21FD37; Fri, 26 Nov 2021 15:50:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1637941819; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FQ+Mm6JkV2Xf+vFQs3eoCHIf48wz7aoTUs8bjzPap3k=; b=qAe2WCHRLdGzgPM+zT8eJXkmYsFOBqZ2pQ73KBeXJ0xonvjhQJd81DM6XEy2PVcqO10YsA 57CA6qNLOAOQCJNp9gns/Bg7wxbL9qCBupZBbXXK9pwR22lFSc/hX1eQQCsw3BxnS7tJe5 JhLiNGy4dQ04j3nHuclo4OzZujIfbC8= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1637941819; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FQ+Mm6JkV2Xf+vFQs3eoCHIf48wz7aoTUs8bjzPap3k=; b=fGmgVKfp1jmCter1YmfQc0E1Fp+1Jp30bVaFYsPJCyg5KwJUXR+YE6d2qvb1TEEHwEVl59 m2VtwfCawNbW+vDg== 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 87DF413C65; Fri, 26 Nov 2021 15:50:19 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id gtp/IDsCoWHfdQAAMHmgww (envelope-from ); Fri, 26 Nov 2021 15:50:19 +0000 Message-ID: Date: Fri, 26 Nov 2021 16:50:19 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.2 Subject: Re: [PATCH v2 4/4] mm: allow !GFP_KERNEL allocations for kvmalloc Content-Language: en-US To: Michal Hocko , Andrew Morton Cc: Dave Chinner , Neil Brown , Christoph Hellwig , Uladzislau Rezki , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, LKML , Ilya Dryomov , Jeff Layton , Michal Hocko References: <20211122153233.9924-1-mhocko@kernel.org> <20211122153233.9924-5-mhocko@kernel.org> From: Vlastimil Babka In-Reply-To: <20211122153233.9924-5-mhocko@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: D11C950000AE X-Stat-Signature: 53ukhzsuq13nis9fp8n78diunou4ze75 Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=qAe2WCHR; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=fGmgVKfp; spf=pass (imf04.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.29 as permitted sender) smtp.mailfrom=vbabka@suse.cz; dmarc=none X-HE-Tag: 1637941816-695334 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 11/22/21 16:32, Michal Hocko wrote: > From: Michal Hocko > > A support for GFP_NO{FS,IO} and __GFP_NOFAIL has been implemented > by previous patches so we can allow the support for kvmalloc. This > will allow some external users to simplify or completely remove > their helpers. > > GFP_NOWAIT semantic hasn't been supported so far but it hasn't been > explicitly documented so let's add a note about that. > > ceph_kvmalloc is the first helper to be dropped and changed to > kvmalloc. > > Signed-off-by: Michal Hocko Acked-by: Vlastimil Babka