ceph: avoid unnecessary fscache invalidation/revlidation

ceph_fill_file_size() has already called ceph_fscache_invalidate()
if it return true.
Signed-off-by: Yan, Zheng <zyan@redhat.com>

fs/ceph/caps.c

@@ -2993,10 +2993,9 @@ static void handle_cap_grant(struct ceph_mds_client *mdsc,
 	if (fill_inline)
 		ceph_fill_inline_data(inode, NULL, inline_data, inline_len);
 
-	if (queue_trunc) {
+	if (queue_trunc)
 		ceph_queue_vmtruncate(inode);
-		ceph_queue_revalidate(inode);
-	} else if (queue_revalidate)
+	else if (queue_revalidate)
 		ceph_queue_revalidate(inode);
 
 	if (writeback)
@@ -3199,10 +3198,8 @@ static void handle_cap_trunc(struct inode *inode,
 					  truncate_seq, truncate_size, size);
 	spin_unlock(&ci->i_ceph_lock);
 
-	if (queue_trunc) {
+	if (queue_trunc)
 		ceph_queue_vmtruncate(inode);
-		ceph_fscache_invalidate(inode);
-	}
 }
 
 /*