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Date: Wed, 15 Nov 2006 19:01:05 +0100 From: Ingo Molnar <mingo@...e.hu> To: Eric Dumazet <dada1@...mosbay.com> Cc: Andi Kleen <ak@...e.de>, akpm@...l.org, Arjan van de Ven <arjan@...radead.org>, Jeremy Fitzhardinge <jeremy@...p.org>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] i386-pda UP optimization * Eric Dumazet <dada1@...mosbay.com> wrote: > > > + GET_CPU_NUM(%ebx) \ > > > PER_CPU(cpu_gdt_descr, %ebx); \ > > > movl GDS_address(%ebx), %ebx; \ > > > > %ebx very definitely wants to have a current CPU number loaded ;) Pick > > it up from the task struct. > > Hum.... Are you sure ? > > For UP we have this PER_CPU definition : > > #define PER_CPU(var, cpu) \ > movl $per_cpu__/**/var, cpu; hm, you are right. No quick ideas then. Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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