From patchwork Wed Nov 21 02:43:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eiichi Tsukata X-Patchwork-Id: 1000848 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=etsukata.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=etsukata-com.20150623.gappssmtp.com header.i=@etsukata-com.20150623.gappssmtp.com header.b="MctSODym"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4306Nc6Hk5z9s8F for ; Wed, 21 Nov 2018 13:44:32 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726704AbeKUNQw (ORCPT ); Wed, 21 Nov 2018 08:16:52 -0500 Received: from mail-pl1-f195.google.com ([209.85.214.195]:46399 "EHLO mail-pl1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726594AbeKUNQw (ORCPT ); Wed, 21 Nov 2018 08:16:52 -0500 Received: by mail-pl1-f195.google.com with SMTP id t13so3181976ply.13 for ; Tue, 20 Nov 2018 18:44:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=etsukata-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=S98AfvktK5ubznf+7tPpcMB3RtXLxMLR6IfafpV0zKk=; b=MctSODymScBuzbx1+dDPa9v56o9gD57nrquuXfOeQULzH/WJok3qX9EIWI+17fyejf YGsOHW4U2G6Yytw8c7Iv2R+VtTD5N5f/MwzSZNA9qEW+aSE6w4JPtK93hGbg0WrkRohl +onbDDlihN0knzxF/xksLrmLUBiY4tbJe9NYa5zVV9bV382Rrs8kPaXuged6X3RWPeQq qrYJYF46HStnFlSV6NZFg3j9MvOCqang4naUmtcFpb1D4+7khtbHqv9cQoCSuNyT4NYC NkSro/Q/8IQg9hVNLBwuR/FTr+us0+JiZEMDMV3YxifKQN5761JeTqE4KK8obgf0Ft2f q++g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=S98AfvktK5ubznf+7tPpcMB3RtXLxMLR6IfafpV0zKk=; b=Vb0QX6Y9aC4Ho7RgStZln8yCIjzvvu/yvDU+6bbacxY0tsSQarq9+8yphPAaG7whEz 0d22463D2XMv9x95q41HHPMwtIUZoQm6wt/oSF+3BUhxGxvRhXUz+WnuTHPs1ufah13X KG58hE/6J24D65n2t3rRnYPW676q5mK9UY+3BqADlGFUjk1miP5iU1yuXpdgK7yPR0BU 0HI4JSpBljmsH/+QyTJISuB7RMOJVn2N6kC5eifhlpqLZaoCiIB4lxi9ZDkJWOCsHOg6 6mnOwA4MoSKDqhQe1jAvNM7AFFCZnDif8k0flsUGrOiHLN+OTlUFXon4VFoRpdGtrCxA 8QxQ== X-Gm-Message-State: AA+aEWY9GNaFjwCxVTaz/lz4DViyYpdgxV9iRe54PpByNzWncGzzBOlY ttVrz1DdN6SAQidDWpKVh+OfMQ== X-Google-Smtp-Source: AFSGD/XiiUFmvgYaucgphQWKiIX3V6pLpVlSIfA+n1TJa6RGP1bQ1zL6qQB1pi6O4YiOq/9A4vsZ/A== X-Received: by 2002:a17:902:a70b:: with SMTP id w11mr4857981plq.84.1542768269956; Tue, 20 Nov 2018 18:44:29 -0800 (PST) Received: from fedora.fout.local (fs76eecbcd.tkyc008.ap.nuro.jp. [118.238.203.205]) by smtp.gmail.com with ESMTPSA id l63-v6sm46356677pfb.75.2018.11.20.18.44.24 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 20 Nov 2018 18:44:29 -0800 (PST) From: Eiichi Tsukata To: andi@firstfloor.org, Chris Mason , Josef Bacik , David Sterba , "Theodore Ts'o" , Andreas Dilger , Jaegeuk Kim , Chao Yu , Miklos Szeredi , Bob Peterson , Andreas Gruenbacher , Alexander Viro , linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, cluster-devel@redhat.com, linux-unionfs@vger.kernel.org Cc: Eiichi Tsukata Subject: [PATCH v1 3/4] f2fs: fix race between llseek SEEK_END and write Date: Wed, 21 Nov 2018 11:43:59 +0900 Message-Id: <20181121024400.4346-4-devel@etsukata.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181121024400.4346-1-devel@etsukata.com> References: <20181121024400.4346-1-devel@etsukata.com> MIME-Version: 1.0 Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org This patch itself seems to be just a cleanup but with the commit b25bd1d9fd87 ("vfs: fix race between llseek SEEK_END and write") it fixes race. Signed-off-by: Eiichi Tsukata --- fs/f2fs/file.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 88b124677189..14a923607eff 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -447,15 +447,11 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence) static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence) { - struct inode *inode = file->f_mapping->host; - loff_t maxbytes = inode->i_sb->s_maxbytes; - switch (whence) { case SEEK_SET: case SEEK_CUR: case SEEK_END: - return generic_file_llseek_size(file, offset, whence, - maxbytes, i_size_read(inode)); + return generic_file_llseek(file, offset, whence); case SEEK_DATA: case SEEK_HOLE: if (offset < 0)