[XFS] move v_iocount from bhv_vnode to xfs_inode

struct bhv_vnode is on it's way out, so move the I/O count to the XFS
inode.

SGI-PV: 969608
SGI-Modid: xfs-linux-melb:xfs-kern:29497a

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_inode.c b/fs/xfs/xfs_inode.c
index c07553b..0349e71 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -864,6 +864,7 @@
 	ip = kmem_zone_zalloc(xfs_inode_zone, KM_SLEEP);
 	ip->i_ino = ino;
 	ip->i_mount = mp;
+	atomic_set(&ip->i_iocount, 0);
 	spin_lock_init(&ip->i_flags_lock);
 
 	/*
@@ -1455,7 +1456,7 @@
 	mp = ip->i_mount;
 	vp = XFS_ITOV(ip);
 
-	vn_iowait(vp);  /* wait for the completion of any pending DIOs */
+	vn_iowait(ip);  /* wait for the completion of any pending DIOs */
 	
 	/*
 	 * Call toss_pages or flushinval_pages to get rid of pages