From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Remi Machet <rmachet@slac.stanford.edu>
Cc: Linux PPC <linuxppc-dev@ozlabs.org>
Subject: Re: [PATCH 1/3] powerpc: dma code cleanup
Date: Wed, 08 Oct 2008 09:12:51 +1100 [thread overview]
Message-ID: <1223417571.8157.67.camel@pasglop> (raw)
In-Reply-To: <1223417488.17585.46.camel@pcds-ts102.slac.stanford.edu>
On Tue, 2008-10-07 at 15:11 -0700, Remi Machet wrote:
> This will disappear since I am going to use the vmalloc pool but out of
> curiosity: calling kmap should not result in any virtual memory from the
> kmap pool being used unless the allocated page is in high memory. Do you
> expect many driver to call dma_alloc with GFP_HIGHMEM?
Hard to tell, but they can so ...
Ben.
next prev parent reply other threads:[~2008-10-07 22:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-07 21:05 [PATCH 1/3] powerpc: dma code cleanup Remi Machet
2008-10-07 21:22 ` Benjamin Herrenschmidt
2008-10-07 22:11 ` Remi Machet
2008-10-07 22:12 ` Benjamin Herrenschmidt [this message]
2008-10-09 17:41 ` Remi Machet
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