linux-kernel - Re: [PATCH v6 3/5] vmcore: Introduce remap_oldmem_pfn

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Message-ID: <20130703155933.3f3de4b9@holzheu>
Date:	Wed, 3 Jul 2013 15:59:33 +0200
From:	Michael Holzheu <holzheu@...ux.vnet.ibm.com>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	HATAYAMA Daisuke <d.hatayama@...fujitsu.com>,
	Jan Willeke <willeke@...ibm.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux-kernel@...r.kernel.org, kexec@...ts.infradead.org
Subject: Re: [PATCH v6 3/5] vmcore: Introduce remap_oldmem_pfn_range()

On Tue, 2 Jul 2013 11:42:14 -0400
Vivek Goyal <vgoyal@...hat.com> wrote:

> On Mon, Jul 01, 2013 at 09:32:37PM +0200, Michael Holzheu wrote:

[snip]

> > This handler works as follows:
> > 
> > * Get already available or new page from page cache (find_or_create_page)
> > * Check if /proc/vmcore page is filled with data (PageUptodate)
> > * If yes:
> >   Return that page
> > * If no:
> >   Fill page using __vmcore_read(), set PageUptodate, and return page
> > 
> > Signed-off-by: Michael Holzheu <holzheu@...ux.vnet.ibm.com>
> 
> In general vmcore related changes look fine to me. I am not very familiar
> with the logic of finding pages in page cache and using page uptodate
> flag.
> 
> Hatayama, can you please review it.
> 
> Acked-by: Vivek Goyal <vgoyal@...hat.com>

Hello Vivek,

If Hatayama accepts the patch, should we then send the patch series to
Andrew Morton?

Michael

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