From: Arnd Bergmann <arnd@arndb•de>
To: cbe-oss-dev@ozlabs•org
Cc: Paul Mackerras <paulus@samba•org>, linuxppc-dev@ozlabs•org
Subject: Re: [Cbe-oss-dev] [PATCH 1/3] spufs: remove need for struct page for SPEs
Date: Tue, 13 Feb 2007 13:15:33 +0100 [thread overview]
Message-ID: <200702131315.34438.arnd@arndb.de> (raw)
In-Reply-To: <20070213004616.90897DDF0D@ozlabs.org>
On Tuesday 13 February 2007 01:46, Benjamin Herrenschmidt 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.
>
> The nice thing is that this patch actually removes a lot more code
> than it adds :-)
>
> Signed-off-by: Benjamin Herrenschmidt <benh@kernel•crashing.org>
Acked-by: Arnd Bergmann <arnd.bergmann@de•ibm.com>
next prev parent reply other threads:[~2007-02-13 12:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-13 0:46 [PATCH 0/3] spufs: mmap fixes and updates Benjamin Herrenschmidt
2007-02-13 0:46 ` [PATCH 1/3] spufs: remove need for struct page for SPEs Benjamin Herrenschmidt
2007-02-13 12:15 ` Arnd Bergmann [this message]
2007-02-13 0:46 ` [PATCH 2/3] powerpc: Remove SPU struct page's for PS3 Benjamin Herrenschmidt
2007-02-13 12:16 ` [Cbe-oss-dev] " Arnd Bergmann
2007-02-13 0:46 ` [PATCH 3/3] spufs: Fix bitrot of the SPU mmap facility Benjamin Herrenschmidt
2007-02-13 12:16 ` [Cbe-oss-dev] " Arnd Bergmann
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