From 316e4cfd0b0b4ce846fd0fbda2deebcffbd3e440 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Fri, 17 Aug 2012 09:56:17 -0400
Subject: [PATCH] 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>
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Reading git-format-patch failed