From 115e19c53501edc11f730191f7f047736815ae3d Mon Sep 17 00:00:00 2001
From: Boaz Harrosh <Boaz Harrosh bharrosh@panasas.com>
Date: Thu, 7 Oct 2010 14:28:18 -0400
Subject: exofs: Set i_mapping->backing_dev_info anyway

Though it has been promised that inode->i_mapping->backing_dev_info
is not used and the supporting code is fine. Until the pointer
will default to NULL, I'd rather it points to the correct thing
regardless.

At least for future infrastructure coder it is a clear indication
of where are the key points that inodes are initialized.
I know because it took me time to find this out.

Signed-off-by: Boaz Harrosh <Boaz Harrosh bharrosh@panasas.com>

diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c
index 24ab327a..0ba9886 100644
--- a/fs/exofs/inode.c
+++ b/fs/exofs/inode.c
@@ -1030,6 +1030,7 @@ struct inode *exofs_iget(struct super_block *sb, unsigned long ino)
 		memcpy(oi->i_data, fcb.i_data, sizeof(fcb.i_data));
 	}
 
+	inode->i_mapping->backing_dev_info = sb->s_bdi;
 	if (S_ISREG(inode->i_mode)) {
 		inode->i_op = &exofs_file_inode_operations;
 		inode->i_fop = &exofs_file_operations;
@@ -1129,6 +1130,7 @@ struct inode *exofs_new_inode(struct inode *dir, int mode)
 
 	sbi = sb->s_fs_info;
 
+	inode->i_mapping->backing_dev_info = sb->s_bdi;
 	sb->s_dirt = 1;
 	inode_init_owner(inode, dir, mode);
 	inode->i_ino = sbi->s_nextid++;
-- 
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