Re: [Fwd: Page allocator doubt]

[Dave Hansen <haveblue@us.ibm.com>]

On Thu, 2004-11-11 at 11:27, Luciano A. Stertz wrote:
> 	But... are they allocated to me, even with page_count zeroed? Do I need 
> to do get_page on the them? Sorry if it's a too lame question, but I 
> still didn't understand and found no place to read about this.

Do you see anywhere in the page allocator where it does a loop like
yours?

        for (i = 1; i< 1<<order; i++)
		get_page(page + i);

When you do a multi-order allocation, the first page represents the
whole group and they're treated as a whole.  As you've noticed, breaking
them up requires a little work.

Why don't you post all of the code that you're using so that we can tell
what you're doing?  There might be a better way.  Drivers probably
shouldn't be putting stuff in the page cache all by themselves.  

-- Dave

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