linux-ext4 - [PATCH v7 21/22] xfs: minimal conversion to errseq

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 16 Jun 2017 15:34:26 -0400
From:   Jeff Layton <jlayton@...hat.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Al Viro <viro@...IV.linux.org.uk>, Jan Kara <jack@...e.cz>,
        tytso@....edu, axboe@...nel.dk, mawilcox@...rosoft.com,
        ross.zwisler@...ux.intel.com, corbet@....net,
        Chris Mason <clm@...com>, Josef Bacik <jbacik@...com>,
        David Sterba <dsterba@...e.com>,
        "Darrick J . Wong" <darrick.wong@...cle.com>
Cc:     Carlos Maiolino <cmaiolino@...hat.com>,
        Eryu Guan <eguan@...hat.com>,
        David Howells <dhowells@...hat.com>,
        Christoph Hellwig <hch@...radead.org>,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
        linux-btrfs@...r.kernel.org, linux-block@...r.kernel.org
Subject: [PATCH v7 21/22] xfs: minimal conversion to errseq_t writeback error reporting

Just check and advance the data errseq_t in struct file before
before returning from fsync on normal files. Internal filemap_*
callers are left as-is.

Signed-off-by: Jeff Layton <jlayton@...hat.com>
---
 fs/xfs/xfs_file.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 5fb5a0958a14..bc3b1575e8db 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -134,7 +134,7 @@ xfs_file_fsync(
 	struct inode		*inode = file->f_mapping->host;
 	struct xfs_inode	*ip = XFS_I(inode);
 	struct xfs_mount	*mp = ip->i_mount;
-	int			error = 0;
+	int			error = 0, err2;
 	int			log_flushed = 0;
 	xfs_lsn_t		lsn = 0;
 
@@ -142,10 +142,12 @@ xfs_file_fsync(
 
 	error = filemap_write_and_wait_range(inode->i_mapping, start, end);
 	if (error)
-		return error;
+		goto out;
 
-	if (XFS_FORCED_SHUTDOWN(mp))
-		return -EIO;
+	if (XFS_FORCED_SHUTDOWN(mp)) {
+		error = -EIO;
+		goto out;
+	}
 
 	xfs_iflags_clear(ip, XFS_ITRUNCATED);
 
@@ -197,6 +199,11 @@ xfs_file_fsync(
 	    mp->m_logdev_targp == mp->m_ddev_targp)
 		xfs_blkdev_issue_flush(mp->m_ddev_targp);
 
+out:
+	err2 = filemap_report_wb_err(file);
+	if (!error)
+		error = err2;
+
 	return error;
 }
 
-- 
2.13.0