提交 bd6c57dd 编写于 作者: J Jeff Mahoney 提交者: David Sterba

btrfs: simpilify btrfs_subvol_inherit_props

We just need a superblock, but we look it up using two different
roots depending on the call site.  Let's just use a superblock
pointer initialized at the outset.

This is mostly for Coccinelle not to choke on my root push up set.
Signed-off-by: NJeff Mahoney <jeffm@suse.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>
上级 f5ee5c9a
......@@ -350,6 +350,7 @@ int btrfs_subvol_inherit_props(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_root *parent_root)
{
struct super_block *sb = root->fs_info->sb;
struct btrfs_key key;
struct inode *parent_inode, *child_inode;
int ret;
......@@ -358,12 +359,11 @@ int btrfs_subvol_inherit_props(struct btrfs_trans_handle *trans,
key.type = BTRFS_INODE_ITEM_KEY;
key.offset = 0;
parent_inode = btrfs_iget(parent_root->fs_info->sb, &key,
parent_root, NULL);
parent_inode = btrfs_iget(sb, &key, parent_root, NULL);
if (IS_ERR(parent_inode))
return PTR_ERR(parent_inode);
child_inode = btrfs_iget(root->fs_info->sb, &key, root, NULL);
child_inode = btrfs_iget(sb, &key, root, NULL);
if (IS_ERR(child_inode)) {
iput(parent_inode);
return PTR_ERR(child_inode);
......
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