files: Fix memory overflow checks for shared files.

Otherwise we skip shared segment
overflow on big scales and tests sporadically fail.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>

files.c

@@ -109,7 +109,7 @@ static int collect_fd(int pid, struct fdinfo_entry *e)
 	pr_info("Collect fdinfo pid=%d fd=%ld id=%s\n", pid, e->addr, e->id);
 
 	nr_fdinfo_list++;
-	if ((nr_fdinfo_descs) * sizeof(struct fdinfo_list_entry) >= 4096) {
+	if ((nr_fdinfo_list) * sizeof(struct fdinfo_list_entry) >= 4096) {
 		pr_panic("OOM storing fdinfo_list_entries\n");
 		return -1;
 	}