[XFS] cleanup vnode use in xfs_lookup

SGI-PV: 976035
SGI-Modid: xfs-linux-melb:xfs-kern:30550a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

fs/xfs/linux-2.6/xfs_export.c

@@ -213,17 +213,16 @@ xfs_fs_get_parent(
 	struct dentry		*child)
 {
 	int			error;
-	bhv_vnode_t		*cvp;
+	struct xfs_inode	*cip;
 	struct dentry		*parent;
 
-	cvp = NULL;
-	error = xfs_lookup(XFS_I(child->d_inode), &dotdot, &cvp);
+	error = xfs_lookup(XFS_I(child->d_inode), &dotdot, &cip);
 	if (unlikely(error))
 		return ERR_PTR(-error);
 
-	parent = d_alloc_anon(vn_to_inode(cvp));
+	parent = d_alloc_anon(cip->i_vnode);
 	if (unlikely(!parent)) {
-		VN_RELE(cvp);
+		iput(cip->i_vnode);
 		return ERR_PTR(-ENOMEM);
 	}
 	return parent;

fs/xfs/linux-2.6/xfs_iops.c

@@ -372,13 +372,13 @@ xfs_vn_lookup(
 	struct dentry	*dentry,
 	struct nameidata *nd)
 {
-	bhv_vnode_t	*cvp;
+	struct xfs_inode *cip;
 	int		error;
 
 	if (dentry->d_name.len >= MAXNAMELEN)
 		return ERR_PTR(-ENAMETOOLONG);
 
-	error = xfs_lookup(XFS_I(dir), dentry, &cvp);
+	error = xfs_lookup(XFS_I(dir), dentry, &cip);
 	if (unlikely(error)) {
 		if (unlikely(error != ENOENT))
 			return ERR_PTR(-error);
@@ -386,7 +386,7 @@ xfs_vn_lookup(
 		return NULL;
 	}
 
-	return d_splice_alias(vn_to_inode(cvp), dentry);
+	return d_splice_alias(cip->i_vnode, dentry);
 }
 
 STATIC int

fs/xfs/xfs_vnodeops.c

@@ -1763,7 +1763,7 @@ int
 xfs_lookup(
 	xfs_inode_t		*dp,
 	bhv_vname_t		*dentry,
-	bhv_vnode_t		**vpp)
+	xfs_inode_t		**ipp)
 {
 	xfs_inode_t		*ip;
 	xfs_ino_t		e_inum;
@@ -1778,7 +1778,7 @@ xfs_lookup(
 	lock_mode = xfs_ilock_map_shared(dp);
 	error = xfs_dir_lookup_int(dp, lock_mode, dentry, &e_inum, &ip);
 	if (!error) {
-		*vpp = XFS_ITOV(ip);
+		*ipp = ip;
 		xfs_itrace_ref(ip);
 	}
 	xfs_iunlock_map_shared(dp, lock_mode);

fs/xfs/xfs_vnodeops.h

@@ -24,7 +24,7 @@ int xfs_fsync(struct xfs_inode *ip, int flag, xfs_off_t start,
 int xfs_release(struct xfs_inode *ip);
 int xfs_inactive(struct xfs_inode *ip);
 int xfs_lookup(struct xfs_inode *dp, bhv_vname_t *dentry,
-		bhv_vnode_t **vpp);
+		struct xfs_inode **ipp);
 int xfs_create(struct xfs_inode *dp, bhv_vname_t *dentry, mode_t mode,
 		xfs_dev_t rdev, struct xfs_inode **ipp, struct cred *credp);
 int xfs_remove(struct xfs_inode *dp, bhv_vname_t	*dentry);