From: Andrew Morton <akpm@osdl.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linux-mm@kvack.org, hugh@veritas.com, paulus@samba.org,
nickpiggin@yahoo.com.au, davem@davemloft.net
Subject: Re: vDSO vs. mm : problems with ppc vdso
Date: Mon, 27 Feb 2006 22:47:39 -0800 [thread overview]
Message-ID: <20060227224739.70ecfd08.akpm@osdl.org> (raw)
In-Reply-To: <1141108220.3767.43.camel@localhost.localdomain>
Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:
>
> > > I'll send the patch as a reply to this message.
> >
> > Please copy linux-arch.
>
> Did that.
You did not, you meanie.
> > > pages in could be a problem ?
> >
> > It sounds just like a sound card DMA buffer to me - that's a solved
> > problem? (Well, we keep unsolving it, but it's a relatively common
> > pattern).
>
> Might be ... though I though the later had VM_RESERVED or some similar
> thing ... the trick with that vma is that i don't want any of these
> things to allow for COW ... But yeah, it _looks_ like it will just work
> (well... it appears to work so far anyway....)
Hugh's the man - he loves that stuff.
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next prev parent reply other threads:[~2006-02-28 6:47 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-28 5:39 Benjamin Herrenschmidt
2006-02-28 5:54 ` Andrew Morton
2006-02-28 6:08 ` Benjamin Herrenschmidt
2006-02-28 6:20 ` Andrew Morton
2006-02-28 6:30 ` Benjamin Herrenschmidt
2006-02-28 6:47 ` Andrew Morton [this message]
2006-02-28 7:36 ` Benjamin Herrenschmidt
2006-02-28 12:13 ` Hugh Dickins
2006-02-28 10:24 ` Nick Piggin
2006-02-28 12:32 ` Hugh Dickins
2006-02-28 17:55 ` Benjamin Herrenschmidt
2006-03-01 2:24 ` Nick Piggin
2006-03-01 2:26 ` Benjamin Herrenschmidt
2006-03-01 2:38 ` Nick Piggin
2006-02-28 6:27 ` [PATCH] Add mm->task_size and fix powerpc vdso Benjamin Herrenschmidt
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