diff -Nupr src.orig/kernel/reboot.c src/kernel/reboot.c --- src.orig/kernel/reboot.c 2016-12-15 19:56:00.196000000 +0000 +++ src/kernel/reboot.c 2016-12-15 19:56:48.264000000 +0000 @@ -366,8 +366,15 @@ SYSCALL_DEFINE4(reboot, int, magic1, int return ret; } +void kpatch_bar(void) +{ + if (!jiffies) + printk("kpatch_foo\n"); +} + static void deferred_cad(struct work_struct *dummy) { + kpatch_bar(); kernel_restart(NULL); }