Re: [PATCH v2] slab,slub: ignore __GFP_WAIT if we're booting or suspending

From: Pekka Enberg
Date: Fri Jun 12 2009 - 06:12:02 EST

Hi Ingo,

On Fri, Jun 12, 2009 at 1:07 PM, Ingo Molnar<mingo@xxxxxxx> wrote:
> IMHO such invisible side-channels modifying the semantics of GFP
> flags is a bit dubious.
> We could do GFP_INIT or GFP_BOOT. These can imply other useful
> modifiers as well: panic-on-failure for example. (this would clean
> up a fair amount of init code that currently checks for an panics on
> allocation failure.)

OK, but that means we need to fix up every single caller. I'm fine
with that but Ben is not. As I am unable to test powerpc here, I am
inclined to just merge Ben's patch as "obviously correct".

That does not mean we can't introduce GFP_BOOT later on if we want to. Hmm?

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