From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Fri, 9 Aug 2013 15:08:40 +0000 (+0200)
Subject: Btrfs: get rid of one BUG() in write_all_supers()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9d565ba4330db102127f19d159609df5c3a375d8;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

Btrfs: get rid of one BUG() in write_all_supers()

The second round uses btrfs_error() and return -EIO, the first round
can handle write errors the same way.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 6d642e487229..0f75a01f69e2 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3416,8 +3416,10 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors)
 		printk(KERN_ERR "btrfs: %d errors while writing supers\n",
 		       total_errors);
 
-		/* This shouldn't happen. FUA is masked off if unsupported */
-		BUG();
+		/* FUA is masked off if unsupported and can't be the reason */
+		btrfs_error(root->fs_info, -EIO,
+			    "%d errors while writing supers", total_errors);
+		return -EIO;
 	}
 
 	total_errors = 0;