From patchwork Wed May 31 12:45:40 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 9756843 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4459D60390 for ; Wed, 31 May 2017 12:46:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 36776201BD for ; Wed, 31 May 2017 12:46:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2B08C21E5A; Wed, 31 May 2017 12:46:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CD63F201BD for ; Wed, 31 May 2017 12:46:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751482AbdEaMqL (ORCPT ); Wed, 31 May 2017 08:46:11 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53814 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751465AbdEaMqJ (ORCPT ); Wed, 31 May 2017 08:46:09 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E91912D9FC6; Wed, 31 May 2017 12:46:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com E91912D9FC6 Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=jlayton@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com E91912D9FC6 Received: from tleilax.poochiereds.net (ovpn-120-5.rdu2.redhat.com [10.10.120.5]) by smtp.corp.redhat.com (Postfix) with ESMTP id D32717E8FA; Wed, 31 May 2017 12:46:02 +0000 (UTC) From: Jeff Layton To: Andrew Morton , Al Viro , Jan Kara , tytso@mit.edu, axboe@kernel.dk, mawilcox@microsoft.com, ross.zwisler@linux.intel.com, corbet@lwn.net Cc: linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH v5 17/17] fs: convert ext2 to use write_one_page_since Date: Wed, 31 May 2017 08:45:40 -0400 Message-Id: <20170531124540.8782-18-jlayton@redhat.com> In-Reply-To: <20170531124540.8782-1-jlayton@redhat.com> References: <20170531124540.8782-1-jlayton@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Wed, 31 May 2017 12:46:04 +0000 (UTC) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Sample the wb_err before changing the directory, so that we can catch errors that occur since that point. Signed-off-by: Jeff Layton --- fs/ext2/dir.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c index 6e476c9929f8..073f096ac5e6 100644 --- a/fs/ext2/dir.c +++ b/fs/ext2/dir.c @@ -85,7 +85,8 @@ ext2_last_byte(struct inode *inode, unsigned long page_nr) return last_byte; } -static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len) +static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len, + errseq_t since) { struct address_space *mapping = page->mapping; struct inode *dir = mapping->host; @@ -100,7 +101,7 @@ static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len) } if (IS_DIRSYNC(dir)) { - err = write_one_page(page); + err = write_one_page_since(page, since); if (!err) err = sync_inode_metadata(dir, 1); } else { @@ -462,13 +463,14 @@ void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de, (char *) de - (char *) page_address(page); unsigned len = ext2_rec_len_from_disk(de->rec_len); int err; + errseq_t since = filemap_sample_wb_err(dir->i_mapping); lock_page(page); err = ext2_prepare_chunk(page, pos, len); BUG_ON(err); de->inode = cpu_to_le32(inode->i_ino); ext2_set_de_type(de, inode); - err = ext2_commit_chunk(page, pos, len); + err = ext2_commit_chunk(page, pos, len, since); ext2_put_page(page); if (update_times) dir->i_mtime = dir->i_ctime = current_time(dir); @@ -494,6 +496,7 @@ int ext2_add_link (struct dentry *dentry, struct inode *inode) char *kaddr; loff_t pos; int err; + errseq_t since = filemap_sample_wb_err(dir->i_mapping); /* * We take care of directory expansion in the same loop. @@ -560,7 +563,7 @@ int ext2_add_link (struct dentry *dentry, struct inode *inode) memcpy(de->name, name, namelen); de->inode = cpu_to_le32(inode->i_ino); ext2_set_de_type (de, inode); - err = ext2_commit_chunk(page, pos, rec_len); + err = ext2_commit_chunk(page, pos, rec_len, since); dir->i_mtime = dir->i_ctime = current_time(dir); EXT2_I(dir)->i_flags &= ~EXT2_BTREE_FL; mark_inode_dirty(dir); @@ -589,6 +592,7 @@ int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page ) ext2_dirent * pde = NULL; ext2_dirent * de = (ext2_dirent *) (kaddr + from); int err; + errseq_t since = filemap_sample_wb_err(inode->i_mapping); while ((char*)de < (char*)dir) { if (de->rec_len == 0) { @@ -609,7 +613,7 @@ int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page ) if (pde) pde->rec_len = ext2_rec_len_to_disk(to - from); dir->inode = 0; - err = ext2_commit_chunk(page, pos, to - from); + err = ext2_commit_chunk(page, pos, to - from, since); inode->i_ctime = inode->i_mtime = current_time(inode); EXT2_I(inode)->i_flags &= ~EXT2_BTREE_FL; mark_inode_dirty(inode); @@ -628,6 +632,7 @@ int ext2_make_empty(struct inode *inode, struct inode *parent) struct ext2_dir_entry_2 * de; int err; void *kaddr; + errseq_t since = filemap_sample_wb_err(inode->i_mapping); if (!page) return -ENOMEM; @@ -653,7 +658,7 @@ int ext2_make_empty(struct inode *inode, struct inode *parent) memcpy (de->name, "..\0", 4); ext2_set_de_type (de, inode); kunmap_atomic(kaddr); - err = ext2_commit_chunk(page, 0, chunk_size); + err = ext2_commit_chunk(page, 0, chunk_size, since); fail: put_page(page); return err;