fs/filescontrol.c: fix warning:large integer implicitly truncated to unsigned type

hulk inclusion
category: bugfix
bugzilla: 50779
CVE: NA

--------

page_counter_set_max(struct page_counter *counter, unsigned long nr_pages)
the nr_pages is unsigned long, therefore change FILES_MAX to ULONG_MAX
Signed-off-by: NLu Jialin <lujialin4@huawei.com>
Reviewed-by: NXiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

fs/filescontrol.c

@@ -27,7 +27,7 @@
 #include <linux/sched/signal.h>
 #include <linux/module.h>
 
-#define FILES_MAX ULLONG_MAX
+#define FILES_MAX ULONG_MAX
 #define FILES_MAX_STR "max"
 
 static bool no_acct;