From: Jeremy Fitzhardinge Date: Fri, 9 Sep 2011 00:50:12 +0000 (-0700) Subject: x86, ticketlock: remove obsolete comment X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4a7f340c6a75ec5fca23d9c80a59f3f28cc4a61e;p=linux-beck.git 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 --- 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) {