Re: [patch 5/6] ps3: BD/DVD/CD-ROM Storage Driver

On Mon, 16 Jul 2007, Geert Uytterhoeven wrote:

On Mon, 16 Jul 2007, Jens Axboe wrote:

quoted

On Mon, Jul 16 2007, Geert Uytterhoeven wrote:

quoted

On Fri, 13 Jul 2007, Geert Uytterhoeven wrote:

quoted

Ah, that explains it. flush_dcache_page() is used in some drivers.
I'll update my patches. Thanks for the comments!

Does this look OK?
  - Replaced KM_USER0 by KM_IRQ0 (all routines are either called from an
    interrupt handler, from .request_fn (ps3disk), or from .queuecommand
    (ps3rom))

That looks good.

quoted

  - Add a call to flush_kernel_dcache_page() in routines that write to buffers

Hmm, I would have thought a flush_dcache_page() would be more
appropriate, the backing could be page cache pages.

OK, I'll change it to flush_dcache_page().

Upon closer look, while flush_kernel_dcache_page() is a no-op on ppc64,
flush_dcache_page() isn't. So I'd prefer to not call it if not really needed.

And according to James, flush_kernel_dcache_page() should be sufficient...

So I'm getting puzzled again...

With kind regards,
 
Geert Uytterhoeven
Software Architect

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