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Message-ID: <20100601182452.GA3564@kernel.dk>
Date: Tue, 1 Jun 2010 20:24:52 +0200
From: Jens Axboe <jaxboe@...ionio.com>
To: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc: akpm@...ux-foundation.org, James.Bottomley@...e.de,
linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH -mm 0/3] remove useless ISA_DMA_THRESHOLD
On Mon, May 31 2010, FUJITA Tomonori wrote:
> This patchset removes useless ISA_DMA_THRESHOLD:
>
> - ISA_DMA_THRESHOLD is irrelevant to the majority of architectures but
> they have to define it.
>
> - ISA_DMA_THRESHOLD definition is inconsistent on architectures; ISA
> DMA addressing restriction, DMA addressing restriction or something
> else.
>
> - Everyone (except for SCSI) uses dma_mask instead of ancient
> ISA_DMA_THRESHOLD.
>
> Only SCSI uses ISA_DMA_THRESHOLD for ancient drivers with non-zero
> unchecked_isa_dma. We can safely remove ISA_DMA_THRESHOLD usage in
> SCSI. So we can clean up ISA_DMA_THRESHOLD on the whole tree.
Looks good. James, it's probably easier if I just carry this patch set.
--
Jens Axboe
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