Messages in this thread | | | From | Andy Lutomirski <> | Date | Tue, 6 Jan 2015 13:34:56 -0800 | Subject | Re: [PATCH 3.19 3/3] x86, mpx: Change the MPX enable/disable API to arch_prctl |
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On Tue, Jan 6, 2015 at 1:22 PM, Andi Kleen <andi@firstfloor.org> wrote: >> Given that it doesn't seen to have been committed yet, I'm not too >> worried about compatibility. And "prctl (43)" doesn't actually seem a >> whole lot better than "syscall(SYS_arch_prctl, ARCH_ENABLE_MPX, 0)" > > This would actually fail with the EINVAL change you requested. >
So the libmpx code needs to change anyway, then, right? I really don't think we should accept garbage in the extra prctl slots just because uncommitted code somewhere fails to initialize them.
--Andy
>> (preprocessor macros ftw!). But I don't feel that strongly about this >> point. > > -Andi
-- Andy Lutomirski AMA Capital Management, LLC
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