From: Andrew Morton <akpm@linux-foundation.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, cbe-oss-dev@ozlabs.org,
Arnd Bergmann <arnd.bergmann@de.ibm.com>
Subject: Re: [PATCH 3/3] spufs: remove need for struct page for SPEs
Date: Wed, 7 Feb 2007 14:21:12 -0800 [thread overview]
Message-ID: <20070207142112.e7856c3f.akpm@linux-foundation.org> (raw)
In-Reply-To: <20070207045055.295F3DDE46@ozlabs.org>
On Wed, 07 Feb 2007 15:50:52 +1100
Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:
> This patch removes the need for struct page for SPE local store
> and registers from spufs. It also makes the locking much more
> obvious and no longer relying on the truncate logic black magic
> for protecting against races between unmap_mapping_range() and
> new pages faulted in. It does so by switching to a nopfn() handler
> and using the new vm_insert_pfn() to setup the PTEs itself while
> holding a lock on the SPE.
Some of this patch seems to already be in Paul's tree. Or something.
I'll duck this patch.
next prev parent reply other threads:[~2007-02-07 22:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-07 4:50 [PATCH 0/3] spufs: don't need struct page for SPEs Benjamin Herrenschmidt
2007-02-07 4:50 ` [PATCH 1/3] add vm_insert_pfn() Benjamin Herrenschmidt
2007-02-07 4:50 ` [PATCH 2/3] Add NOPFN_REFAULT result from vm_ops->nopfn() Benjamin Herrenschmidt
2007-02-07 4:50 ` [PATCH 3/3] spufs: remove need for struct page for SPEs Benjamin Herrenschmidt
2007-02-07 4:55 ` Benjamin Herrenschmidt
2007-02-07 14:52 ` [Cbe-oss-dev] " Christoph Hellwig
2007-02-07 22:21 ` Andrew Morton [this message]
2007-02-07 23:15 ` Benjamin Herrenschmidt
2007-02-09 3:59 ` [Cbe-oss-dev] " Benjamin Herrenschmidt
2007-02-07 14:39 ` [PATCH 0/3] spufs: don't need " Arnd Bergmann
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