Re: [PATCH] swsusp: use bytes as image size units

From: Rafael J. Wysocki
Date: Tue Jan 24 2006 - 03:19:46 EST


On Tuesday, 24 January 2006 00:56, Dave Jones wrote:
> On Tue, Jan 24, 2006 at 12:32:26AM +0100, Rafael J. Wysocki wrote:
> > Hi,
> >
> > This patch makes swsusp use bytes as the image size units, which is needed
> > for future compatibility.
>
> With what ?

WIth the userland interface.

> I don't see how clipping this range to a maximum of 4GB
> will future-proof anything. What happens in a few years time when
> I want to suspend my 8GB laptop ?

We cannot create an image that's greater than 1/2 of RAM (in general)
or 1/2 of lowmem (on i386) anyway, but this does not limit the size of
RAM of a box you want to suspend. The rest of the RAM contents will
be swapped out before suspend.

Besides on x86-64 unsigned long is 64-bit, so it's not limited to 4 GB.

Greetings,
Rafael
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