linux-kernel - Re: [PATCH] add_partition silently ignored errors

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Message-ID: <20071031104546.2543fda9@gondolin.boeblingen.de.ibm.com>
Date:	Wed, 31 Oct 2007 10:45:46 +0100
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	Dirk Hohndel <hohndel@...ux.intel.com>
Cc:	Jens Axboe <jens.axboe@...cle.com>, Andries Brouwer <aeb@....nl>,
	Al Viro <viro@....linux.org.uk>, linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] add_partition silently ignored errors

On Tue, 30 Oct 2007 15:56:35 -0700,
Dirk Hohndel <hohndel@...ux.intel.com> wrote:

> On Tue, Oct 30, 2007 at 06:31:12PM +0100, Cornelia Huck wrote:
> > On Tue, 30 Oct 2007 09:56:08 -0700,
> > Dirk Hohndel <hohndel@...ux.intel.com> wrote:
> > 
> > > > > IIRC, Al recently vetoed a similar patch. As far as I'm concerned, with
> > > > > the correct return values, the patch then looks fine to me.
> 
> So Al, are you ok with this one?
> 
> > > > We need some kind of check concerning the kobject to avoid mysterious
> > > > errors (especially checking for the failed kobject_add() is needed).
> > > > Whether we want just to inform the user of the failure instead of
> > > > failing the function is another question.
> > > 
> > > What are you suggesting? I'd love to make the behaviour consistent everywhere
> > > (and am willing to go through things in order to make that happen), but what is
> > > the consistent behaviour that we'd want?
> > 
> > I'd be fine with just propagating the error after cleanup (that is what
> > for example the driver core usually does), but I don't know the
> > surrounding code well enough for a definitive answer.
> 
> Ok, I think I have it consistent now. I also ran it through checkpatch.pl :-)
> 
> /D
> 
> 
> [FILESYSTEM] add_partition ignores errors
> 
> Signed-off-by: Dirk Hohndel <hohndel@...ux.intel.com>
> 
> ---
>  block/ioctl.c         |    9 +++++++--
>  fs/partitions/check.c |   36 +++++++++++++++++++++++++++++-------
>  include/linux/genhd.h |    2 +-
>  3 files changed, 37 insertions(+), 10 deletions(-)

OK, the kobject error handling looks fine to me.
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