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 73A02C433EF for ; Thu, 20 Jan 2022 12:43:36 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id E1E866B007E; Thu, 20 Jan 2022 07:43:35 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DCE3B6B009C; Thu, 20 Jan 2022 07:43:35 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C95FF6B00A0; Thu, 20 Jan 2022 07:43:35 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0094.hostedemail.com [216.40.44.94]) by kanga.kvack.org (Postfix) with ESMTP id BB6E76B007E for ; Thu, 20 Jan 2022 07:43:35 -0500 (EST) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 38698951BF for ; Thu, 20 Jan 2022 12:43:35 +0000 (UTC) X-FDA: 79050631590.08.A044FCE Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by imf13.hostedemail.com (Postfix) with ESMTP id C9B6820004 for ; Thu, 20 Jan 2022 12:43:34 +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 AAC501F394; Thu, 20 Jan 2022 12:43:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1642682613; 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=vgBzc7I2pJqwfBdmwKli8iUZ76Vy/MpRiILYANtDveU=; b=CXVwEuHtk7eur32TnMb/OXG2m3p4+BhfrZZL2uqe9aTIW2bhia+ZahQ/0SWb/AcQ+TONAk dGj16S7y3OizP+SB9CzWWC5GiOf6Sut/lnPc9cK1fSVM0TKvE39Kf/Fob+vntfxTPw9xtX lFflZXgDGVKGsyyllRctWiMVpFxZCx4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1642682613; 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=vgBzc7I2pJqwfBdmwKli8iUZ76Vy/MpRiILYANtDveU=; b=Y23c0VpocTiQpAHyHLWlhSB7aRliGeSTDgjc5BVrkttCsIYyjCB48kJ/FlDFoYwySTeyt+ VMSjOpIyFC1PW7BA== 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 6207313E9E; Thu, 20 Jan 2022 12:43:33 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id FUwyF/VY6WFrZgAAMHmgww (envelope-from ); Thu, 20 Jan 2022 12:43:33 +0000 Message-ID: Date: Thu, 20 Jan 2022 13:43:33 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v4 60/66] mm/oom_kill: Use maple tree iterators instead of vma linked list Content-Language: en-US To: Liam Howlett , "maple-tree@lists.infradead.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Andrew Morton Cc: Song Liu , Davidlohr Bueso , "Paul E . McKenney" , Matthew Wilcox , Laurent Dufour , David Rientjes , Axel Rasmussen , Suren Baghdasaryan , Rik van Riel , Peter Zijlstra , Michel Lespinasse , Jerome Glisse , Minchan Kim , Joel Fernandes , Rom Lemarchand References: <20211201142918.921493-1-Liam.Howlett@oracle.com> <20211201142918.921493-61-Liam.Howlett@oracle.com> From: Vlastimil Babka In-Reply-To: <20211201142918.921493-61-Liam.Howlett@oracle.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: C9B6820004 X-Stat-Signature: f6dqfn7ur78dewz1qzzzrg94fkfex6bb Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=CXVwEuHt; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=Y23c0Vpo; dmarc=none; spf=pass (imf13.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.29 as permitted sender) smtp.mailfrom=vbabka@suse.cz X-HE-Tag: 1642682614-4250 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 12/1/21 15:30, Liam Howlett wrote: > From: "Liam R. Howlett" > > Signed-off-by: Liam R. Howlett Acked-by: Vlastimil Babka Could be VMA_ITERATOR? > --- > mm/oom_kill.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/mm/oom_kill.c b/mm/oom_kill.c > index 1ddabefcfb5a..1694b30eb46c 100644 > --- a/mm/oom_kill.c > +++ b/mm/oom_kill.c > @@ -516,6 +516,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm) > { > struct vm_area_struct *vma; > bool ret = true; > + MA_STATE(mas, &mm->mm_mt, 0, 0); > > /* > * Tell all users of get_user/copy_from_user etc... that the content > @@ -525,7 +526,7 @@ bool __oom_reap_task_mm(struct mm_struct *mm) > */ > set_bit(MMF_UNSTABLE, &mm->flags); > > - for (vma = mm->mmap ; vma; vma = vma->vm_next) { > + mas_for_each(&mas, vma, ULONG_MAX) { > if (!can_madv_lru_vma(vma)) > continue; >