Re: [tip:x86/asm] sched/x86_64: Don't save flags on context switch

[Oleg Nesterov]

On 11/03, Andy Lutomirski wrote:
>
> And do we ever have TF set during a context switch?  I hope not.

I too hope.

> Also, what's with 'jmp exit_intr' at the end of retint_kernel?  Why
> isn't that 'jmp retint_kernel'?

Even better, why not "jmp retint_restore_args" ?

preempt_schedule_irq() checks need_resched() and returns with irqs
disabled, not need to to recheck test_preempt_need_resched() ?

Oleg.

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