From: Andi Kleen Date: Mon, 12 Sep 2005 16:49:24 +0000 (+0200) Subject: [PATCH] x86-64: Remove freeing of SMP trampoline pages X-Git-Tag: v2.6.14-rc1~41 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=47e5701e37cf10948c3f2952870d9f18b6e84965;p=profile%2Fivi%2Fkernel-x86-ivi.git [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: Andi Kleen Signed-off-by: Linus Torvalds --- diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 277ce5e..5b7aadb 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -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 } /*