From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 9 Aug 2012 03:39:36 +0000 (-0600)
Subject: Btrfs: fix wrong mtime and ctime when creating snapshots
X-Git-Tag: firefly_0821_release~3680^2~2082^2~9
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c0f62dedd04ae0f3b8a18079db5a015af24e416f;p=firefly-linux-kernel-4.4.55.git

Btrfs: fix wrong mtime and ctime when creating snapshots

When we created a new snapshot, the mtime and ctime of its parent directory
were not updated. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 7208ada41e0e..3ee8d58e97ad 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1026,6 +1026,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
 
 	btrfs_i_size_write(parent_inode, parent_inode->i_size +
 					 dentry->d_name.len * 2);
+	parent_inode->i_mtime = parent_inode->i_ctime = CURRENT_TIME;
 	ret = btrfs_update_inode(trans, parent_root, parent_inode);
 	if (ret)
 		goto abort_trans_dput;