Re: [PATCH] raid: make RAID autodetect default a KConfig option

From: Ingo Molnar
Date: Tue Sep 23 2008 - 05:16:19 EST



* Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote:

> On Tue, 23 Sep 2008 13:45:19 +1000
> Neil Brown <neilb@xxxxxxx> wrote:
>
> > On Monday September 22, mingo@xxxxxxx wrote:
> > >
> > > * Arjan van de Ven <arjan@xxxxxxxxxxxxx> wrote:
> > >
> > > > From 812bf9a448d96375a3aec5c51764d74cace85abb Mon Sep 17 00:00:00
> > > > 2001 From: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
> > > > Date: Sun, 21 Sep 2008 15:44:32 -0700
> > > > Subject: [PATCH] raid: make RAID autodetect default a KConfig
> > > > option
> > > >
> > > > RAID autodetect has the side effect of requiring synchronisation
> > > > of all device drivers, which can make the boot several seconds
> > > > longer (I've measured 7 on one of my laptops).... even for
> > > > systems that don't have RAID setup for the root filesystem (the
> > > > only FS where this matters).
> > > >
> > > > This patch makes the default for autodetect a config option;
> > > > either way the user can always override via the kernel command
> > > > line.
> > >
> > > Neil, if you agree with this patch, could you please send your
> > > Acked-by line? This patch depends on a clean-up in
> > > init/do_mounts_md.c that is in the fastboot tree so it would be
> > > logistically easier/better if we could queue this up towards
> > > upstream via tip/fastboot.
> >
> > Yes,
> > Acked-by: NeilBrown <neilb@xxxxxxx>
> >
> > I'm not a big fan of autodetect in any case, and this patch seems to
> > cover all the bases I can think of.
> >
>
> thanks
> pushed to
> git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-fastboot.git
> master
>
> Ingo, please pull

pulled the commit below into tip/fastboot, thanks Arjan and Neil!

Ingo

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