linux-kernel - Re: [PATCH V10 0/6] mm: frontswap: overview (and proposal to merge at next window)

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Message-Id: <20110928151558.dca1da5e.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Wed, 28 Sep 2011 15:15:58 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Dan Magenheimer <dan.magenheimer@...cle.com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org, jeremy@...p.org,
	hughd@...gle.com, ngupta@...are.org, konrad.wilk@...cle.com,
	JBeulich@...ell.com, kurt.hackel@...cle.com, npiggin@...nel.dk,
	akpm@...ux-foundation.org, riel@...hat.com, hannes@...xchg.org,
	matthew@....cx, chris.mason@...cle.com,
	sjenning@...ux.vnet.ibm.com, jackdachef@...il.com,
	cyclonusj@...il.com, levinsasha928@...il.com
Subject: Re: [PATCH V10 0/6] mm: frontswap: overview (and proposal to merge
 at next window)

On Thu, 15 Sep 2011 14:33:05 -0700
Dan Magenheimer <dan.magenheimer@...cle.com> wrote:

> [PATCH V10 0/6] mm: frontswap: overview (and proposal to merge at next window)
> 
> (Note: V9->V10 only change is corrections in debugfs-related code/counters)
> 
> (Note to earlier reviewers:  This patchset was reorganized at V9 due
> to feedback from Kame Hiroyuki and Andrew Morton.  Additionally, feedback
> on frontswap v8 from Andrew Morton also applies to cleancache, to wit:
>  (1) change usage of sysfs to debugfs to avoid unnecessary kernel ABIs
>  (2) rename all uses of "flush" to "invalidate"
> As a result, additional patches (5of6 and 6of6) were added to this
> series at V9 to patch cleancache core code and cleancache hooks in the mm
> and fs subsystems and update cleancache documentation accordingly.)
> 

I'm sorry I couldn't catch following... what happens at hibernation ?
frontswap is effectively stopped/skipped automatically ? or contents of
TMEM can be kept after power off and it can be read correctly when
resume thread reads swap ?

In short: no influence to hibernation ?
I'm sorry if I misunderstand some.

Thanks,
-Kame

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