Re: [GIT PULL v2] Early SLAB fixes for 2.6.31

From: Christoph Lameter
Date: Mon Jun 15 2009 - 11:51:29 EST

On Mon, 15 Jun 2009, Pekka Enberg wrote:

> > OK, I can clean this up, no problem.
> Actually, there's a slight complication here. If I push gfp mask to
> __might_sleep(), lockdep_trace_alloc() and so on, the mask is
> effective _everywhere_ even outside of slab. Yes, it makes sense if we
> push the masking right down to the page allocator but I wonder if
> that's something we want to do at this point?

__might_sleep just should not trigger right? The mask does not need to be
passed. __might_sleep may be called uselessly during bootup if __GFP_WAIT
is set. But it should not trigger any output. Look at the initial
statements of __might_sleep: They are already prepared to simply return in
the early boot case.

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