[XFS] kill struct bhv_vfs

Now that struct bhv_vfs doesn't have any members left we can kill it and
go directly from the super_block to the xfs_mount everywhere.

SGI-PV: 969608
SGI-Modid: xfs-linux-melb:xfs-kern:29509a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 668996a..8878322 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -234,7 +234,7 @@
 	xfs_mount_t	*mp,
 	uint		type)
 {
-	vfs_wait_for_freeze(XFS_MTOVFS(mp), SB_FREEZE_TRANS);
+	xfs_wait_for_freeze(mp, SB_FREEZE_TRANS);
 	return _xfs_trans_alloc(mp, type);
 }
 
@@ -628,7 +628,7 @@
 				  offsetof(xfs_dsb_t, sb_frextents) +
 				  sizeof(sbp->sb_frextents) - 1);
 
-	XFS_MTOVFS(tp->t_mountp)->vfs_super->s_dirt = 1;
+	tp->t_mountp->m_super->s_dirt = 1;
 }
 
 /*