Re: [PATCH 3/12 2.4] e1000 - use vmalloc for data structures not shared with h/w

From: Herbert Xu (herbert_at_gondor.apana.org.au)
Date: 07/31/04

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    To: hch@infradead.org (Christoph Hellwig)
Date:	Sat, 31 Jul 2004 17:38:11 +1000

    Christoph Hellwig <hch@infradead.org> wrote:
    > On Thu, Jul 29, 2004 at 11:17:08AM -0700, Venkatesan, Ganesh wrote:
    >> Vmalloc space is less scarce than kmalloc space. Am I right? This patch
    >> trades kmalloc space for vmalloc space.
    >
    > No, it's not. vmalloc needs virtual space that's rather limited (e.g. 64MB
    > on PAE x86) in addition to physical memory. Unless you do really big
    > allocations stay away from vmalloc.

    How big is really big? 64K? 256K? 1M?

    Thanks, 

    -- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
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