Re: [PATCH 0/2][RFC] VFCIPI v3

[Peter Zijlstra]

On Tue, 2007-07-31 at 12:14 -0400, Gregory Haskins wrote:

> Out of curiosity and for my own edification:  What *is* GFP_ATOMIC meant for?

It is meant as you used it, _except_ for !PREEMPT_RT.

With PREEMPT_RT all allocators are fully preemptable, that is both the
slab as well as the underlying page allocator.

Allocation from atomic context is a BUG() with -rt.

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