From: Tejun Heo <tj@kernel.org>
To: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Subhash Jadavani <subhashj@codeaurora.org>,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-mmc@vger.kernel.org, linux-arm-msm@vger.kernel.org,
martin.petersen@oracle.com, asias@redhat.com,
linux-arm-kernel@lists.infradead.org,
Russell King <linux@arm.linux.org.uk>
Subject: Re: [PATCH v2 1/1] block: blk-merge: don't merge the pages with non-contiguous descriptors
Date: Wed, 16 Jan 2013 15:18:57 -0800 [thread overview]
Message-ID: <20130116231857.GU2668@htj.dyndns.org> (raw)
In-Reply-To: <1358332355.2384.11.camel@dabdike.int.hansenpartnership.com>
On Wed, Jan 16, 2013 at 10:32:35AM +0000, James Bottomley wrote:
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index 6b2fb87..ab88c5b 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -809,7 +809,7 @@ static void dma_cache_maint_page(struct page *page, unsigned long offset,
> op(vaddr, len, dir);
> }
> offset = 0;
> - page++;
> + page = pfn_to_page(page_to_pfn(page) + 1);
Probably page = nth_page(page, 1) is the better form.
Thanks.
--
tejun
next prev parent reply other threads:[~2013-01-16 23:19 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-15 16:01 Subhash Jadavani
2013-01-15 16:19 ` James Bottomley
2013-01-16 6:37 ` Subhash Jadavani
2013-01-16 9:25 ` James Bottomley
2013-01-16 10:32 ` James Bottomley
2013-01-16 12:39 ` Subhash Jadavani
2013-01-16 23:14 ` Russell King - ARM Linux
2013-01-17 8:54 ` James Bottomley
2013-01-16 23:18 ` Tejun Heo [this message]
2013-01-17 9:11 ` James Bottomley
2013-01-17 10:37 ` Russell King - ARM Linux
2013-01-17 10:47 ` Russell King - ARM Linux
2013-01-17 11:01 ` James Bottomley
2013-01-17 11:04 ` Russell King - ARM Linux
2013-01-17 11:19 ` James Bottomley
2013-01-17 11:40 ` Russell King - ARM Linux
2013-01-17 14:58 ` Subhash Jadavani
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