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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BDF0AC433EF for ; Fri, 11 Mar 2022 07:25:42 +0000 (UTC) Received: from [127.0.0.1] (helo=sfs-ml-1.v29.lw.sourceforge.com) by sfs-ml-1.v29.lw.sourceforge.com with esmtp (Exim 4.94.2) (envelope-from ) id 1nSZeg-0000Dv-GM; Fri, 11 Mar 2022 07:25:41 +0000 Received: from [172.30.20.202] (helo=mx.sourceforge.net) by sfs-ml-1.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1nSZef-0000Do-1a for linux-f2fs-devel@lists.sourceforge.net; Fri, 11 Mar 2022 07:25:39 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: From:References:To:Subject:MIME-Version:Date:Message-ID:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=ZETk5eApxFh3gxdQ1xp85jK505HofIIu4oPrYKrOgOg=; b=dPUr+MHjH8CxmSVW32R5p843sH 1vuMKOPJ3r+omuH27pIYDTcNW+X00pTx7UlbnAWCz9QjOivDknMwaanUrfK8YItM31ocQvR7uz4mN NO/ZRdTa+yWNFaP7UDlEyM2A1m0epNT0nDxSwVi0uTzDRF/FbYy/hgL6Tibvq/MNrnJo=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:To: Subject:MIME-Version:Date:Message-ID:Sender:Reply-To:Cc:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ZETk5eApxFh3gxdQ1xp85jK505HofIIu4oPrYKrOgOg=; b=FB0Q6XHXNziWwLMH5PDQ0NCRSK 6nUnYjWC0uD8R6/On00cOho9G+QdWYa0Psr9kVrqH5y0BqW7EkZrYIxtV/U5cCP2SOKPp5svL6Svq XIWWpJPMMu9gjGlwaWi8aVtzQa7GExjGXBr4Su1I10VxKXWSd7g5K6nG7aSgAGm+1LKc=; Received: from ams.source.kernel.org ([145.40.68.75]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.94.2) id 1nSZec-0004sD-L1 for linux-f2fs-devel@lists.sourceforge.net; Fri, 11 Mar 2022 07:25:39 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 820BCB82AD8 for ; Fri, 11 Mar 2022 07:25:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3B5C8C340E9; Fri, 11 Mar 2022 07:25:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1646983529; bh=g84WdhT8WlUiVZ4Pe91HKYziG64yo/SO8s//Xpd2fk0=; h=Date:Subject:To:References:From:In-Reply-To:From; b=RYbR6QstwFDm4TM9v8bCHTbEje2eF314IM+w4i62zCcjy5CbFYtxmMOKpJl1xESrz 1BCXHnRkodtI0iUZHM1Id/Byrwtcth5mck8sVVve34jt7pFw08XUoAwxdlRGG/xbZs bGgog83ItM1AGidvcly4RQhLWGsbx5S5WBDhGI8gTjLDYk4BnFir5Tq35/MNVNkeCB MZKdaibOGRjUtHJ23sJKNEOyFufuv+omYan+GeYH1vI8J+HpgUmVsHy3lwtcYSGyly XlKLxpYMmGv0fIXnXZ6OMuI4YvbBOwMIkd3EwnqMZLMsMZ1cY1GJ0qdxBsBliotM5X x1JAFcmvQVRsg== Message-ID: <86d59c1d-b453-5ee2-4737-b4dd03829965@kernel.org> Date: Fri, 11 Mar 2022 15:25:25 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.6.2 Content-Language: en-US To: Jaegeuk Kim , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net References: <20220309214834.3408741-1-jaegeuk@kernel.org> From: Chao Yu In-Reply-To: X-Headers-End: 1nSZec-0004sD-L1 Subject: Re: [f2fs-dev] [PATCH 1/2 v2] f2fs: don't get FREEZE lock in f2fs_evict_inode in frozen fs X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On 2022/3/11 13:22, Jaegeuk Kim wrote: > Let's purge inode cache in order to avoid the below deadlock. > > [freeze test] shrinkder > freeze_super > - pwercpu_down_write(SB_FREEZE_FS) > - super_cache_scan > - down_read(&sb->s_umount) > - prune_icache_sb > - dispose_list > - evict > - f2fs_evict_inode > thaw_super > - down_write(&sb->s_umount); > - __percpu_down_read(SB_FREEZE_FS) > > Signed-off-by: Jaegeuk Kim Reviewed-by: Chao Yu Thanks, _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel