linux-kernel - Re: [PATCH 5/6 RFC] arch/m68knommu/kernel/process.c: Remove the BKL from sys

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Date:	Tue, 13 Oct 2009 13:30:20 +0200 (CEST)
From:	John Kacur <jkacur@...hat.com>
To:	Greg Ungerer <gerg@...pgear.com>,
	Thomas Gleixner <tglx@...utronix.de>
cc:	linux-kernel@...r.kernel.org,
	Frederic Weisbecker <fweisbec@...il.com>,
	Vincent Sanders <vince@...tec.co.uk>,
	Ingo Molnar <mingo@...e.hu>,
	Christoph Hellwig <hch@...radead.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jonathan Corbet <corbet@....net>,
	Mike Frysinger <vapier@...too.org>,
	David Howells <dhowells@...hat.com>,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	Roman Zippel <zippel@...ux-m68k.org>,
	Greg Ungerer <gerg@...inux.org>,
	Koichi Yasutake <yasutake.koichi@...panasonic.com>
Subject: Re: [PATCH 5/6 RFC] arch/m68knommu/kernel/process.c: Remove the BKL
 from sys_execve



On Tue, 13 Oct 2009, Greg Ungerer wrote:

> Hi John,
> 
> On 10/13/2009 08:34 AM, John Kacur wrote:
> > > From e36c53d296132bc0ddbf6d9fb43ea5ea56dbd4a2 Mon Sep 17 00:00:00 2001
> > From: John Kacur<jkacur@...hat.com>
> > Date: Mon, 12 Oct 2009 23:37:28 +0200
> > Subject: [PATCH] arch/m68knommu/kernel/process.c: Remove the BKL from
> > sys_execve
> > 
> > This looks like a copy-and-paste of functionality that no-longer needs the
> > bkl.
> > Just remove it.
> > 
> > Signed-off-by: John Kacur<jkacur@...hat.com>
> 
> Tested and runs fine on m68knommu.
> 
> Acked-by: Greg Ungerer <gerg@...inux.org>
> 
> Do you want me to push this into the m68knommu git tree,
> for eventual merging into Linus' tree?  Or are you going
> to push the whole set of patches together?
> 
> Regards
> Greg
 
@Thomas - do you want to pick this up for your proposed kill bkl tree and
push it to Linus during this next merge window - or in this case is it 
more appropriate for Greg as the m68knommu maintainer to do so?

Thanks

John 

 
> > ---
> >   arch/m68knommu/kernel/process.c |    5 +----
> >   1 files changed, 1 insertions(+), 4 deletions(-)
> > 
> > diff --git a/arch/m68knommu/kernel/process.c
> > b/arch/m68knommu/kernel/process.c
> > index 8f8f4ab..5c9ecd4 100644
> > --- a/arch/m68knommu/kernel/process.c
> > +++ b/arch/m68knommu/kernel/process.c
> > @@ -352,15 +352,12 @@ asmlinkage int sys_execve(char *name, char **argv,
> > char **envp)
> >   	char * filename;
> >   	struct pt_regs *regs = (struct pt_regs *)&name;
> > 
> > -	lock_kernel();
> >   	filename = getname(name);
> >   	error = PTR_ERR(filename);
> >   	if (IS_ERR(filename))
> > -		goto out;
> > +		return error;
> >   	error = do_execve(filename, argv, envp, regs);
> >   	putname(filename);
> > -out:
> > -	unlock_kernel();
> >   	return error;
> >   }
> > 
> 
> -- 
> ------------------------------------------------------------------------
> Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@...pgear.com
> SnapGear Group, McAfee                      PHONE:       +61 7 3435 2888
> 825 Stanley St,                             FAX:         +61 7 3891 3630
> Woolloongabba, QLD, 4102, Australia         WEB: http://www.SnapGear.com
> 
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