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get rid of useless dget_parent() in btrfs rename() and link()

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->d_parent is locked and stable there...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-07-16 23:09:10 -04:00
parent 2fbe8c8ad1
commit 10d9f309d8
1 changed files with 2 additions and 4 deletions
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6
fs/btrfs/inode.c
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@ -4766,11 +4766,10 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
if (err) { if (err) {
drop_inode = 1; drop_inode = 1;
} else { } else {
struct dentry *parent = dget_parent(dentry); struct dentry *parent = dentry->d_parent;
err = btrfs_update_inode(trans, root, inode); err = btrfs_update_inode(trans, root, inode);
BUG_ON(err); BUG_ON(err);
btrfs_log_new_name(trans, inode, NULL, parent); btrfs_log_new_name(trans, inode, NULL, parent);
dput(parent);
} }
nr = trans->blocks_used; nr = trans->blocks_used;
@ -7062,9 +7061,8 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
BUG_ON(ret); BUG_ON(ret);
if (old_ino != BTRFS_FIRST_FREE_OBJECTID) { if (old_ino != BTRFS_FIRST_FREE_OBJECTID) {
struct dentry *parent = dget_parent(new_dentry); struct dentry *parent = new_dentry->d_parent;
btrfs_log_new_name(trans, old_inode, old_dir, parent); btrfs_log_new_name(trans, old_inode, old_dir, parent);
dput(parent);
btrfs_end_log_trans(root); btrfs_end_log_trans(root);
} }
out_fail: out_fail: