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

From: Benjamin Herrenschmidt
Date: Fri Jun 12 2009 - 06:00:34 EST

> Maybe if we just not make it a general "tweak gfpflag" bit (at
> least not until a bit more discussion), but a specific workaround
> for the local_irq_enable in early boot problem.
> Seems like it would not be hard to track things down if we add
> a warning if we have GFP_WAIT and interrupts are not enabled...

But tweaking local_irq_enable() will have a lot more performance & bloat
impact overall on the normal case.


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