vfs: switch pnode.h macros to struct mount *

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/pnode.c b/fs/pnode.c
index a40abf2..ab5fa9e 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -82,7 +82,7 @@
 		if (peer_mnt == mnt)
 			peer_mnt = NULL;
 	}
-	if (IS_MNT_SHARED(&mnt->mnt) && list_empty(&mnt->mnt_share))
+	if (IS_MNT_SHARED(mnt) && list_empty(&mnt->mnt_share))
 		mnt_release_group_id(mnt);
 
 	list_del_init(&mnt->mnt_share);
@@ -107,7 +107,7 @@
 		}
 	}
 	mnt->mnt_master = master;
-	CLEAR_MNT_SHARED(&mnt->mnt);
+	CLEAR_MNT_SHARED(mnt);
 	return 0;
 }
 
@@ -199,7 +199,7 @@
 	/* slave of the earlier, then */
 	*type = CL_SLAVE;
 	/* beginning of peer group among the slaves? */
-	if (IS_MNT_SHARED(&dest->mnt))
+	if (IS_MNT_SHARED(dest))
 		*type |= CL_MAKE_SHARED;
 	return last_src;
 }