linux-kernel - Re: [PATCH -next] Hibernate: Take overlapping zones into account

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Date:	Tue, 11 Nov 2008 13:07:15 -0500 (EST)
From:	Len Brown <lenb@...nel.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Pavel Machek <pavel@...e.cz>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	Andy Whitcroft <apw@...dowen.org>,
	LKML <linux-kernel@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: [PATCH -next] Hibernate: Take overlapping zones into account



On Sat, 8 Nov 2008, Rafael J. Wysocki wrote:

> Hi Len,
> 
> Please add this patch to the suspend branch.

Please re-send a checkpatch clean version.

Also, the comments on this patch (and the next) are mal-formed.
The commit message must be before the first "---" and the throw-away
comments must be after it, rather thant the reverse.

I ask others to get this right, so it seems most fair that I do the
same for you -- otherwise your next patch will have the same problems
and others will follow your example of not sending the "perfect patch"

thanks,
-Len


> ---
> From: Rafael J. Wysocki <rjw@...k.pl>
> Subject: Hibernate: Take overlapping zones into account
> 
> It has been requested to make hibernation work with memory
> hotplugging enabled and for this purpose the hibernation code has to
> be reworked to take the possible overlapping of zones into account.
> Thus, rework the hibernation memory bitmaps code to prevent
> duplication of PFNs from occuring and add checks to make sure that
> one page frame will not be marked as saveable many times.
> 
> Additionally, use list.h lists instead of open-coded lists to
> implement the memory bitmaps.
> 
> Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
> Cc: Pavel Machek <pavel@...e.cz>
> Cc: Dave Hansen <dave@...ux.vnet.ibm.com>
> Cc: Andy Whitcroft <apw@...dowen.org>
> ---
>  kernel/power/snapshot.c |  331 ++++++++++++++++++++++++------------------------
>  1 file changed, 169 insertions(+), 162 deletions(-)
> 
> Index: linux-2.6/kernel/power/snapshot.c
> ===================================================================
> --- linux-2.6.orig/kernel/power/snapshot.c
> +++ linux-2.6/kernel/power/snapshot.c
> @@ -25,6 +25,7 @@
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