staging/lustre: use 64-bit times in debug print

This adapts the format string and get_seconds() call to not
overflow in 2038 in the libcfs_debug_dumplog_internal()
function.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/libcfs/debug.c

@@ -452,8 +452,8 @@ void libcfs_debug_dumplog_internal(void *arg)
 
 	if (strncmp(libcfs_debug_file_path_arr, "NONE", 4) != 0) {
 		snprintf(debug_file_name, sizeof(debug_file_name) - 1,
-			 "%s.%ld.%ld", libcfs_debug_file_path_arr,
-			 get_seconds(), (long_ptr_t)arg);
+			 "%s.%lld.%ld", libcfs_debug_file_path_arr,
+			 (s64)ktime_get_real_seconds(), (long_ptr_t)arg);
 		pr_alert("LustreError: dumping log to %s\n",
 		       debug_file_name);
 		cfs_tracefile_dump_all_pages(debug_file_name);