From 47e5701e37cf10948c3f2952870d9f18b6e84965 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 12 Sep 2005 18:49:24 +0200 Subject: [PATCH] [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 --- arch/x86_64/kernel/smpboot.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 277ce5e91e0..5b7aadbef5f 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 } /* -- 2.20.1