Re: [PATCH 03/17] x86-64: Convert irqstacks to per-cpu

From: Brian Gerst
Date: Sun Jan 18 2009 - 00:05:44 EST

On Sat, Jan 17, 2009 at 11:58 PM, Tejun Heo <tj@xxxxxxxxxx> wrote:
> Hello,
> Brian Gerst wrote:
>> @@ -211,15 +211,13 @@ ENTRY(secondary_startup_64)
>> * data area. Computing this requires two symbols - __per_cpu_load
>> * and per_cpu__gdt_page. As linker can't do no such relocation, do
>> * it by hand. As early_gdt_descr is manipulated by C code for
>> - * secondary CPUs, this should be done only once for the boot CPU
>> - * when early_gdt_descr_base contains zero.
>> + * secondary CPUs, this should be done only once for the boot CPU.
>> */
> It would probably be nice to mention that it's calculating per cpu
> load addresses for early access. The comment only refers to gdt_page
> which is a bit misleading as it now also adjusts irqstackptr.
> Also, as pda field name, irqstackptr might be fine but wouldn't it be
> better to rename it to at least irq_stack_ptr as this change requires
> touching every users anyway?

I kept the same name unless it would conflict with something. If you
want to rename it, it should be a separate patch.

Brian Gerst
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