jbd2: check return value of blkdev_issue_flush()
blkdev_issue_flush() can fail; make sure the error gets properly
propagated.
This is a port of the equivalent jbd patch from commit 349ecd6a3c0e.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/jbd2/recovery.c b/fs/jbd2/recovery.c
index 0131e43..626846b 100644
--- a/fs/jbd2/recovery.c
+++ b/fs/jbd2/recovery.c
@@ -289,8 +289,11 @@
if (!err)
err = err2;
/* Make sure all replayed data is on permanent storage */
- if (journal->j_flags & JBD2_BARRIER)
- blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL);
+ if (journal->j_flags & JBD2_BARRIER) {
+ err2 = blkdev_issue_flush(journal->j_fs_dev, GFP_KERNEL, NULL);
+ if (!err)
+ err = err2;
+ }
return err;
}
