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SubjectRe: [PATCH -v4] x86: enable preemption in delay
Date
Hi Thomas,

On Monday 26 May 2008 01:21:04 am Thomas Gleixner wrote:
> On Sun, 25 May 2008, Marin Mitov wrote:
> > Hi Steven,
>
> Please do not trim CC lists without a good reason. [Restored it]
>
> > look at this patch, proposed by me and Ingo few month ago.
> > I think it solves the problem you had fond, but unfortunately
> > it had been lost (not included in the mainline).
>
> Yep, and it might be simply because the mail thread ended with:
>
> http://lkml.org/lkml/2007/11/20/426

Could be. I remember to have answered to Ingo and he gave me
a long lecture (thank him for it, I am a newbee) how to use quilt
(because I had updated the patch by hand). In any case, the final
version is:

http://lkml.org/lkml/2007/11/20/343

It applies to 2.6.25.4 with the following warnings:

patching file arch/x86/lib/delay_32.c
Hunk #1 succeeded at 40 (offset 2 lines).
patching file arch/x86/lib/delay_64.c
Hunk #1 succeeded at 28 (offset 2 lines).

If you find the patch usefull I will rebase it to 2.6.26-rc3.
>
> > hi Marin,
> >
> > here's the patch we are carrying in x86.git at the moment - could you
> > please update it with v3 of your code, and send us the patch (with the
> > patch metadata kept intact, like you see it below)? Thanks,
> >
> > Ingo
>
> And there was no response. I just checked my x86 quilt archives and it
> simply went into the "wait for update" category and got dropped
> unfortunately.

Here is an extract of the Ingo's mail sent to me at that time:

From: Ingo Molnar <mingo@elte.hu>
To: Marin Mitov <mitov@issp.bas.bg>
CC: akpm@linux-foundation.org, tglx@linutronix.de
<snip>
* Marin Mitov <mitov@issp.bas.bg> wrote:

> > > The difference is explained in the reference above. Ingo asked me
> > > to send the last changes:
> > >
> > > http://lkml.org/lkml/2007/11/20/426
> > >
> > > and I have sent them to him.
> >
> > yep, and we've got that queued in the x86 tree.
>
> According to the attachment to the e-mail I have got from Andrew, the
> patch "added to -mm tree" is not the patch (v.3):
>
> http://lkml.org/lkml/2007/11/20/343
>
> but the patch (v.2) that has the flaw of a possible infinite
> loop:
>
> http://lkml.org/lkml/2007/11/18/5
>
> If that is the intention, OK.

the patch that got queued up in the x86 tree 3 days ago is the one below
- your latest.

Ingo
<snip>

As far as the patch (in the Ingo's mail) was really the latest,
I decided all is OK. But it did not appeared in 2.6.24.

That is the story as I know of it ;-)

Best regards.

Marin Mitov


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