From: Thieu Le <thieule@chromium.org>
Date: Tue, 26 Jul 2011 23:15:10 +0000 (-0700)
Subject: ecryptfs: Make inode bdi consistent with superblock bdi
X-Git-Tag: firefly_0821_release~7541^2~3052
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a21353bae5e98fce18080a3691ef75ede61dd261;p=firefly-linux-kernel-4.4.55.git

ecryptfs: Make inode bdi consistent with superblock bdi

commit 985ca0e626e195ea08a1a82b8dbeb6719747429a upstream.

Make the inode mapping bdi consistent with the superblock bdi so that
dirty pages are flushed properly.

Signed-off-by: Thieu Le <thieule@chromium.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 7349ade17de6..4a4fad7fb851 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -69,6 +69,7 @@ static int ecryptfs_inode_set(struct inode *inode, void *opaque)
 	inode->i_ino = lower_inode->i_ino;
 	inode->i_version++;
 	inode->i_mapping->a_ops = &ecryptfs_aops;
+	inode->i_mapping->backing_dev_info = inode->i_sb->s_bdi;
 
 	if (S_ISLNK(inode->i_mode))
 		inode->i_op = &ecryptfs_symlink_iops;