From 4a7f340c6a75ec5fca23d9c80a59f3f28cc4a61e Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Thu, 8 Sep 2011 17:50:12 -0700 Subject: x86, ticketlock: remove obsolete comment The note about partial registers is not really relevent now that we rely on gcc to generate all the assembler. Signed-off-by: Jeremy Fitzhardinge --- arch/x86/include/asm/spinlock.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h index f5695eeb83ff..972c260919a3 100644 --- a/arch/x86/include/asm/spinlock.h +++ b/arch/x86/include/asm/spinlock.h @@ -49,10 +49,6 @@ * issues and should be optimal for the uncontended case. Note the tail must be * in the high part, because a wide xadd increment of the low part would carry * up and contaminate the high part. - * - * With fewer than 2^8 possible CPUs, we can use x86's partial registers to - * save some instructions and make the code more elegant. There really isn't - * much between them in performance though, especially as locks are out of line. */ static __always_inline void __ticket_spin_lock(arch_spinlock_t *lock) { -- cgit v1.2.2