提交 47e5701e 编写于 作者: A Andi Kleen 提交者: Linus Torvalds

[PATCH] x86-64: Remove freeing of SMP trampoline pages

Nick points out it never worked because PageReserved was
set and it might cause problems later on. Also HOTPLUG_CPU
is much more common now so let's care not too much
about the !hotplug case.

Cc: nickpiggin@yahoo.com.au
Signed-off-by: NAndi Kleen <ak@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 016102de
......@@ -859,17 +859,6 @@ static __cpuinit void smp_cleanup_boot(void)
* Reset trampoline flag
*/
*((volatile int *) phys_to_virt(0x467)) = 0;
#ifndef CONFIG_HOTPLUG_CPU
/*
* Free pages reserved for SMP bootup.
* When you add hotplug CPU support later remove this
* Note there is more work to be done for later CPU bootup.
*/
free_page((unsigned long) __va(PAGE_SIZE));
free_page((unsigned long) __va(SMP_TRAMPOLINE_BASE));
#endif
}
/*
......
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