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 X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75B16C4360F for ; Tue, 2 Apr 2019 13:43:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4391320856 for ; Tue, 2 Apr 2019 13:43:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731912AbfDBNnS (ORCPT ); Tue, 2 Apr 2019 09:43:18 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:43650 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731516AbfDBNkL (ORCPT ); Tue, 2 Apr 2019 09:40:11 -0400 Received: from [167.98.27.226] (helo=deadeye) by shadbolt.decadent.org.uk with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hBJe4-0002oo-69; Tue, 02 Apr 2019 14:40:08 +0100 Received: from ben by deadeye with local (Exim 4.92) (envelope-from ) id 1hBJdx-0004va-4c; Tue, 02 Apr 2019 14:40:01 +0100 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, Denis Kirjanov , "Theodore Ts'o" Date: Tue, 02 Apr 2019 14:38:27 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) X-Patchwork-Hint: ignore Subject: [PATCH 3.16 64/99] ext4: check for shutdown and r/o file system in ext4_write_inode() In-Reply-To: X-SA-Exim-Connect-IP: 167.98.27.226 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.65-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Theodore Ts'o commit 18f2c4fcebf2582f96cbd5f2238f4f354a0e4847 upstream. If the file system has been shut down or is read-only, then ext4_write_inode() needs to bail out early. Also use jbd2_complete_transaction() instead of ext4_force_commit() so we only force a commit if it is needed. Signed-off-by: Theodore Ts'o [bwh: Backported to 3.16: - Open-code sb_rdonly() - Drop ext4_forced_shutdown() check] Signed-off-by: Ben Hutchings --- --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4658,7 +4658,8 @@ int ext4_write_inode(struct inode *inode { int err; - if (WARN_ON_ONCE(current->flags & PF_MEMALLOC)) + if (WARN_ON_ONCE(current->flags & PF_MEMALLOC) || + (inode->i_sb->s_flags & MS_RDONLY)) return 0; if (EXT4_SB(inode->i_sb)->s_journal) { @@ -4676,7 +4677,8 @@ int ext4_write_inode(struct inode *inode if (wbc->sync_mode != WB_SYNC_ALL || wbc->for_sync) return 0; - err = ext4_force_commit(inode->i_sb); + err = jbd2_complete_transaction(EXT4_SB(inode->i_sb)->s_journal, + EXT4_I(inode)->i_sync_tid); } else { struct ext4_iloc iloc;