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

From: Pekka Enberg
Date: Fri Jun 12 2009 - 11:21:29 EST


Linus Torvalds wrote:

On Fri, 12 Jun 2009, Pekka J Enberg wrote:
Hmm. This is turning into one epic patch discussion for sure! But here's a patch to do what you suggested. With the amount of patches I am generating, I'm bound to hit the right one sooner or later, no?-)

Ok, this one looks pretty good. I like the statics, and I like how it lets each allocator decide what to do.

Small nit: your mm/slab.c patch does an obviously unnecessary mask in:

cache_alloc_debugcheck_before(cachep, flags & slab_gfp_flags);

but that's stupid, because the bits were already masked earlier.

Yeah, the SLAB parts were completely untested. I have this in my tree now (that I sent a pull request for):

http://git.kernel.org/?p=linux/kernel/git/penberg/slab-2.6.git;a=commitdiff;h=f6b726dae91cc74fb3a00f192932ec4fe0949875

Do you want me to drop it? I can also do an incremental patch to do the unmasking as in this patch.

Pekka
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