linux-kernel - Re: [PATCH 1/3] lib/scatterlist: introduce sg_pcopy_from_buffer() and sg_pcopy_to

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Date:	Sat, 8 Jun 2013 23:04:18 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	imre.deak@...el.com
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tejun Heo <tj@...nel.org>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	linux-crypto@...r.kernel.org,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	Douglas Gilbert <dgilbert@...erlog.com>,
	linux-scsi@...r.kernel.org
Subject: Re: [PATCH 1/3] lib/scatterlist: introduce sg_pcopy_from_buffer() and sg_pcopy_to_buffer()

2013/6/6 Imre Deak <imre.deak@...el.com>:
> Looks ok to me, perhaps adding the seek functionality to the mapping
> iterator would make things more generic and the mapping iterator more
> resemble the page iterator. So we'd have a new sg_miter_start_offset and
> call it here something like:
>
> sg_miter_start_offset(&miter, sgl, nents, sg_flags, skip);

I also thought something like this could be a new interface for sg_miter_* API,
but I haven't found any places where it can be used yet.  That's why I made
it a local function and didn't create new interface.

But putting good function comment like other sg_miter_* API for new
local function
is harmless and it helps someone who wants interface like this in the future.
So I'll do so in next version.
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