Re: [RFC 4/9] Atomic reclaim: Save irq flags in vmscan.c

[Andi Kleen]

> A much simpler approach to this seems to use threaded interrupts like
> -rt does.

Then the interrupt could potentially stay blocked for very long
waiting for process context to finish its work. Also not good.
Essentially it would be equivalent to cli/sti for interrupts
that need to free memory.

-Andi
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