linux-kernel - Re: [PATCH v4 04/52] PCI: Optimize bus min

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Date:	Mon, 14 Sep 2015 14:37:28 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	David Miller <davem@...emloft.net>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Wei Yang <weiyang@...ux.vnet.ibm.com>, TJ <linux@....tj>,
	Yijing Wang <wangyijing@...wei.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 04/52] PCI: Optimize bus min_align/size calculation
 during sizing

On Mon, Sep 14, 2015 at 1:21 PM, Bjorn Helgaas <bhelgaas@...gle.com> wrote:
> I spent a couple hours trying to understand the v3 version of this
> patch, and I gave you some detailed examples and questions.  If you
> want me to look at v4, I expect you to try to clarify the changelog to
> help answer those questions.

you example is  addressed in following patch that support alt_size

and this patch only handle min_align searching for size is not equal to
align.

>
> The goal is that someone with reasonable familiarity with Linux and
> PCI would be able to read the changelogs and understand what happened,
> without having to search out all the email discussions.

Agreed. But changelog for this should not talk alt_size support in
following patch.

Also please let me know if you prefer to reviewing v5 that would be
re-based on v4.3-rc1
instead of v4. or I could wait to post v5 after you finish v4.

Thanks

Yinghai
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