Re: [x86] do_arch_prctl

[Andi Kleen]

Jeremy Fitzhardinge <jeremy@xxxxxxxx> writes:
>>
>> The task_struct is also updated in sys_arch_prctl (ARCH_SET_FS and
>> ARCH_SET_GS), so not just on a context switch.
>> How the task structure could be out of date wrt thread.gs and thread.fs?
>> What could be a typical scenario that could induced gs or fs to be
>> modified and not thread.gs and thread.fs?
>>
>
> Not sure.  It could just be redundant.

The process has just changed fs/gs, but not done a context switch yet.

-Andi

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