orangefs: don't use d_time

Instead use d_fsdata which is the same size.  Hoping to get rid of d_time,
which is used by very few filesystems by this time.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Martin Brandenburg <martin@omnibond.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
diff --git a/fs/orangefs/dcache.c b/fs/orangefs/dcache.c
index 1e8fe84..5355efb 100644
--- a/fs/orangefs/dcache.c
+++ b/fs/orangefs/dcache.c
@@ -73,7 +73,7 @@
 		}
 	}
 
-	dentry->d_time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000;
+	orangefs_set_timeout(dentry);
 	ret = 1;
 out_release_op:
 	op_release(new_op);
@@ -94,8 +94,9 @@
 static int orangefs_d_revalidate(struct dentry *dentry, unsigned int flags)
 {
 	int ret;
+	unsigned long time = (unsigned long) dentry->d_fsdata;
 
-	if (time_before(jiffies, dentry->d_time))
+	if (time_before(jiffies, time))
 		return 1;
 
 	if (flags & LOOKUP_RCU)