linux-kernel - Re: [RFC 1/1] proc: constify seq

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Message-Id: <20140630141744.d7c29bf0d7e94e7ee3c4dd79@linux-foundation.org>
Date:	Mon, 30 Jun 2014 14:17:44 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Joe Perches <joe@...ches.com>
Cc:	Fabian Frederick <fabf@...net.be>, linux-kernel@...r.kernel.org
Subject: Re: [RFC 1/1] proc: constify seq_operations

On Mon, 30 Jun 2014 14:09:05 -0700 Joe Perches <joe@...ches.com> wrote:

> On Mon, 2014-06-30 at 13:57 -0700, Andrew Morton wrote:
> > On Mon, 30 Jun 2014 13:49:30 -0700 Joe Perches <joe@...ches.com> wrote:
> 
> > > It moves ~100 bytes from data to text
> 
> > > $ size kernel/user_namespace.o*
> > >    text    data     bss     dec     hex filename
> > >    6676    3107    2248   12031    2eff kernel/user_namespace.o.new
> > >    6580    3211    2248   12039    2f07 kernel/user_namespace.o.old
> 
> > doh, I only looked at base.o.
> > 
> > I added this to the changelog.  It should have been there originally,
> > please.
> > 
> >    text    data     bss     dec     hex filename
> >    6817     404    1984    9205    23f5 kernel/user_namespace.o-before
> >    6913     308    1984    9205    23f5 kernel/user_namespace.o-after
> 
> The delta in our object sizes in curious.
> 
> x86-64 allyesconfig here.
> What gcc version for you?

gcc-4.4.4 allmodconfig, minus CONFIG_DEBUG_INFO 
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