Re: [PATCH 4/4] x86/asm/entry/32: Use PUSH instructions to build pt_regs on stack

From: Denys Vlasenko
Date: Fri Mar 27 2015 - 08:09:50 EST


On 03/27/2015 12:32 PM, Ingo Molnar wrote:
>
> * Denys Vlasenko <dvlasenk@xxxxxxxxxx> wrote:
>
>> This mimics the recent similar 64-bit change.
>> Saves ~110 bytes of code.
>
> Would be nice to know whether you tested all the affected system entry
> variants, on both AMD and Intel CPUs?

Yes, I did. I also looked at the diff of entry_64.o disassembly, to have
a different view of the changes.

I know how fragile this stuff is.
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