From: NeilBrown <neilb@suse.de>
Date: Fri, 4 Mar 2011 23:44:23 +0000 (+1100)
Subject: Make sure the inode's bdi matches the superblock.
X-Git-Url: http://git.neil.brown.name/?a=commitdiff_plain;h=fbac75a1d6f33cd2b6070934089921e3b1ca038e;p=LaFS.git

Make sure the inode's bdi matches the superblock.

inode_init_always defaults i_data.backing_dev_info to
the bdi for sb->s_bdev if that exists, otherwise
default_backing_dev_info.

Why it doesn't just use sb->s_bdi is not clear.
But in any case it doesn't so we must.

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/inode.c b/inode.c
index 956b680..e66ea28 100644
--- a/inode.c
+++ b/inode.c
@@ -149,6 +149,10 @@ lafs_iget(struct super_block *sb, ino_t inum, int async)
 		return ERR_PTR(-ENOENT);
 	}
 
+	/* surprisingly the inode bdi does not default to the
+	 * super_blocks bdi...
+	 */
+	ino->i_data.backing_dev_info = sb->s_bdi;
 	/* Need to load block 'inum' from an inode file...
 	 */
 	if (!b) {