On Thu,  9 May 2013 14:23:18 -0500 Robin Holt [off-list ref] wrote:

This patch is preparatory.  It moves reboot related syscall, etc
functions from kernel/sys.c to kernel/reboot.c.

This doesn't apply.

-static void migrate_to_reboot_cpu(void)
-{
-	/* The boot cpu is always logical cpu 0 */
-	int cpu = 0;
-
-	cpu_hotplug_disable();
-
-	/* Make certain the cpu I'm about to reboot on is online */
-	if (!cpu_online(cpu))
-		cpu = cpumask_first(cpu_online_mask);

Here it's deleting code which was already modified by "[PATCH -v9
02/11] Migrate shutdown/reboot to boot cpu.".  So patch [4/11]
generates rejects when applied on top of [patch 2/11].

There are several similar glitches.