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Commit 47e5701e authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
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[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: default avatarAndi Kleen <ak@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 016102de

arch/x86_64/kernel/smpboot.c

+0 −11
Original line number Diff line number Diff line
@@ -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

}



/*