diff options
| author | Chris Mason <chris.mason@oracle.com> | 2007-08-27 16:49:44 -0400 |
|---|---|---|
| committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-08-27 16:49:44 -0400 |
| commit | 83df7c1d8b885e216c68c3f0469bec9b93666b74 (patch) | |
| tree | ad8b3373c86c36f9c690def7f71724401ffb41fe | |
| parent | 2cc58cf24f69be8632a3b29d653c318bf3bd8c84 (diff) | |
Btrfs: Make sure to cow the root during a snapshot
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | fs/btrfs/inode.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 7e4cf62ada5..504d37dfa6c 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2096,6 +2096,7 @@ static int create_snapshot(struct btrfs_root *root, char *name, int namelen) struct btrfs_trans_handle *trans; struct btrfs_key key; struct btrfs_root_item new_root_item; + struct buffer_head *tmp; int ret; int err; u64 objectid; @@ -2123,6 +2124,7 @@ static int create_snapshot(struct btrfs_root *root, char *name, int namelen) key.offset = 1; key.flags = 0; btrfs_set_key_type(&key, BTRFS_ROOT_ITEM_KEY); + btrfs_cow_block(trans, root, root->node, NULL, 0, &tmp); btrfs_set_root_blocknr(&new_root_item, bh_blocknr(root->node)); ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key, |