linux-kernel - Re: [PATCH] mm: add config option to select the initial overcommit mode

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Message-ID: <20160513152636.GV20141@dhcp22.suse.cz>
Date:	Fri, 13 May 2016 17:26:36 +0200
From:	Michal Hocko <mhocko@...nel.org>
To:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
Cc:	Mason <slash.tmp@...e.fr>, Sebastian Frias <sf84@...oste.net>,
	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: add config option to select the initial overcommit
 mode

On Fri 13-05-16 16:11:04, One Thousand Gnomes wrote:
> > It seems important to point out that Sebastian's patch does NOT change
> > the default behavior. It merely creates a knob allowing one to override
> > the default via Kconfig.
> > 
> > +choice
> > +	prompt "Overcommit Mode"
> > +	default OVERCOMMIT_GUESS
> > +	depends on EXPERT
> 
> Which is still completely pointless given that its a single sysctl value
> set at early userspace time and most distributions ship with things like
> sysctl and /etc/sysctl.conf
> 
> We have a million other such knobs, putting them in kconfig just gets
> silly.

Exactly my point from the very begining. Thanks for being so direct
here.
-- 
Michal Hocko
SUSE Labs