[PATCH 4.14 25/27] ext4: track writeback errors using the generic tracking infrastructure

[Greg Kroah-Hartman]

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Theodore Ts'o <ty...@mit.edu>

commit 95cb67138746451cc84cf8e516e14989746e93b0 upstream.

We already using mapping_set_error() in fs/ext4/page_io.c, so all we
need to do is to use file_check_and_advance_wb_err() when handling
fsync() requests in ext4_sync_file().

Signed-off-by: Theodore Ts'o <ty...@mit.edu>
Cc: sta...@kernel.org
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 fs/ext4/fsync.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -164,6 +164,9 @@ int ext4_sync_file(struct file *file, lo
                        ret = err;
        }
 out:
+       err = file_check_and_advance_wb_err(file);
+       if (ret == 0)
+               ret = err;
        trace_ext4_sync_file_exit(inode, ret);
        return ret;
 }