[XFS] sanitize xfs_initialize_vnode

Sanitize setting up the Linux indode.

Setting up the xfs_inode <-> inode link is opencoded in xfs_iget_core now
because that's the only place it needs to be done, xfs_initialize_vnode is
renamed to xfs_setup_inode and loses all superflous paramaters. The check
for I_NEW is removed because it always is true and the di_mode check moves
into xfs_iget_core because it's only needed there.

xfs_set_inodeops and xfs_revalidate_inode are merged into xfs_setup_inode
and the whole things is moved into xfs_iops.c where it belongs.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31782a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 19e7a7b..5bb638b 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1046,7 +1046,6 @@
 {
 	xfs_ino_t	ino;
 	xfs_inode_t	*ip;
-	struct inode	*vp;
 	uint		flags;
 	int		error;
 
@@ -1077,7 +1076,6 @@
 	}
 	ASSERT(ip != NULL);
 
-	vp = VFS_I(ip);
 	ip->i_d.di_mode = (__uint16_t)mode;
 	ip->i_d.di_onlink = 0;
 	ip->i_d.di_nlink = nlink;
@@ -1220,7 +1218,7 @@
 	xfs_trans_log_inode(tp, ip, flags);
 
 	/* now that we have an i_mode we can setup inode ops and unlock */
-	xfs_initialize_vnode(tp->t_mountp, vp, ip);
+	xfs_setup_inode(ip);
 
 	*ipp = ip;
 	return 0;