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ARM: CPU hotplug: move cpu_killed completion to core code

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We always need to wait for the dying CPU to reach a safe state before
taking it down, irrespective of the requirements of the platform.
Move the completion code into the ARM SMP hotplug code rather than
having each platform re-implement this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2010-11-30 11:07:35 +00:00
parent 2c0136dba4
commit 3c030beabf
6 changed files with 19 additions and 35 deletions
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8
arch/arm/mach-omap2/omap-hotplug.c
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@@ -17,16 +17,13 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/smp.h>
#include <linux/completion.h>
#include <asm/cacheflush.h>
#include <mach/omap4-common.h>
static DECLARE_COMPLETION(cpu_killed);
int platform_cpu_kill(unsigned int cpu)
{
return wait_for_completion_timeout(&cpu_killed, 5000);
return 1;
}
/*
@@ -42,8 +39,7 @@ void platform_cpu_die(unsigned int cpu)
this_cpu, cpu);
BUG();
}
pr_notice("CPU%u: shutdown\n", cpu);
complete(&cpu_killed);
flush_cache_all();
dsb();