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SubjectRe: [PATCH -mm 5/6] mm: Print first block offset for swap areas
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On Tuesday, 26 September 2006 22:49, Andrew Morton wrote:
> On Tue, 26 Sep 2006 22:13:25 +0200
> "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
>
> > On Tuesday, 26 September 2006 21:39, Andrew Morton wrote:
> > > On Sat, 23 Sep 2006 12:10:54 +0200
> > > "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
> > >
> > > > In order to use a swap file with swsusp we need to know the offset at which
> > > > its swap header is located. However, the swap header is always located in the
> > > > first page block of the swap file and it's quite easy to make sys_swapon() print
> > > > the offset of the swap file's (or swap partition's) first page block.
> > >
> > > Why is this needed? The swapfile's pathname is present in /proc/swaps, so
> > > an application can read that, do the FIBMAP and rewrite grub.conf without
> > > needing to parse dmesg?
> >
> > Well, this is not needed, but it's useful if you have no such application and
> > want to set up things manually. ;-)
>
> ick. We need such an application (probably doable in a python script?).
> Methinks that telling people to go poking in dmesg will simply delay the
> development and propagation of that application..

Okay, let's drop the patch, then.

I'll redo the documentation ...
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