linux-kernel - Re: [PATCH,RFC] Add __GFP_ZERO to GFP_LEVEL

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Message-ID: <30805.1160773222@lwn.net>
Date:	Fri, 13 Oct 2006 15:00:22 -0600
From:	corbet@....net (Jonathan Corbet)
To:	Andrew Morton <akpm@...l.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH,RFC] Add __GFP_ZERO to GFP_LEVEL_MASK 

Andrew Morton <akpm@...l.org> wrote:

> It would be a bit odd to pass __GFP_ZERO into the slab allocator.  Slab
> doesn't need that hint: it has its own ways of initialising the memory.
> 
> What is the callsite?

It's vmalloc_user(), which does this:

  ret = __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);

jon
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