linux-kernel - [PATCH v2 4/4] gfs2: convert to errseq_t based writeback error reporting for fsync

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Date:   Wed, 26 Jul 2017 13:55:38 -0400
From:   Jeff Layton <jlayton@...nel.org>
To:     Alexander Viro <viro@...iv.linux.org.uk>, Jan Kara <jack@...e.cz>
Cc:     "J . Bruce Fields" <bfields@...ldses.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Matthew Wilcox <willy@...radead.org>,
        Bob Peterson <rpeterso@...hat.com>,
        Steven Whitehouse <swhiteho@...hat.com>,
        cluster-devel@...hat.com
Subject: [PATCH v2 4/4] gfs2: convert to errseq_t based writeback error reporting for fsync

From: Jeff Layton <jlayton@...hat.com>

This means that we need to export the new file_fdatawait_range symbol.

Also, fix a place where a writeback error might get dropped in the
gfs2_is_jdata case.

Signed-off-by: Jeff Layton <jlayton@...hat.com>
---
 fs/gfs2/file.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index c2062a108d19..c53ac6efd04c 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -668,12 +668,14 @@ static int gfs2_fsync(struct file *file, loff_t start, loff_t end,
 		if (ret)
 			return ret;
 		if (gfs2_is_jdata(ip))
-			filemap_write_and_wait(mapping);
+			ret = file_write_and_wait(file);
+		if (ret)
+			return ret;
 		gfs2_ail_flush(ip->i_gl, 1);
 	}
 
 	if (mapping->nrpages)
-		ret = filemap_fdatawait_range(mapping, start, end);
+		ret = file_fdatawait_range(file, start, end);
 
 	return ret ? ret : ret1;
 }
-- 
2.13.3