From: Christoph Hellwig <hch@lst.de>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: linux-mm@kvack.org
Subject: Re: [PATCH] vmap_pages() (4th resend)
Date: Mon, 29 Jul 2002 21:46:38 +0200 [thread overview]
Message-ID: <20020729214638.A4582@lst.de> (raw)
In-Reply-To: <Pine.LNX.4.33.0207291222440.11377-100000@penguin.transmeta.com>; from torvalds@transmeta.com on Mon, Jul 29, 2002 at 12:25:24PM -0700
On Mon, Jul 29, 2002 at 12:25:24PM -0700, Linus Torvalds wrote:
> > The old vmalloc_area_pages is renamed to __vmap_area_pages and
> > vmalloc_area_pages is a small wrapper around it, passing in an NULL page
> > array. Similarly __vmalloc is renamed to vmap_pages and a small wrapper
> > is added.
>
> I don't like the NULL page array.
>
> I think vmalloc() should just allocate the pages and create the page
> array, and vmap_pages() should never check for NULL. Ok?
I looked into implementing your suggestion the last, but the problem is
that we need to pass in a page array. To do so we could either allocate
all the pages as high-order allocation or kmalloc() the array where we
place the pages. Both doesn't seem very practical to me..
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next prev parent reply other threads:[~2002-07-29 19:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-29 19:15 Christoph Hellwig
2002-07-29 19:25 ` Linus Torvalds
2002-07-29 19:46 ` Christoph Hellwig [this message]
2002-07-29 20:59 ` Linus Torvalds
2002-07-29 21:29 ` Christoph Hellwig
2002-08-05 17:42 ` Christoph Hellwig
2002-08-05 18:11 ` Christoph Hellwig
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