From: Greg Banks <gnb@melbourne.sgi.com>
To: Neil Brown <neilb@suse.de>
Cc: Josef Sipek <jsipek@fsl.cs.sunysb.edu>,
Andrew Morton <akpm@osdl.org>,
Linux NFS Mailing List <nfs@lists.sourceforge.net>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [NFS] [PATCH 002 of 9] knfsd: knfsd: Remove an unused variable from e_show().
Date: Tue, 25 Jul 2006 14:24:56 +1000 [thread overview]
Message-ID: <1153801496.1547.652.camel@hole.melbourne.sgi.com> (raw)
In-Reply-To: <17605.39934.963857.665398@cse.unsw.edu.au>
On Tue, 2006-07-25 at 14:20, Neil Brown wrote:
> On Tuesday July 25, jsipek@fsl.cs.sunysb.edu wrote:
> > On Tue, Jul 25, 2006 at 11:54:32AM +1000, NeilBrown wrote:
> > ...
> > > diff .prev/fs/nfsd/export.c ./fs/nfsd/export.c
> > > --- .prev/fs/nfsd/export.c 2006-07-24 14:33:06.000000000 +1000
> > > +++ ./fs/nfsd/export.c 2006-07-24 14:33:26.000000000 +1000
> > > @@ -1178,7 +1178,6 @@ static int e_show(struct seq_file *m, vo
> > ...
> > > if (p == (void *)1) {
> >
> > I'm not an NFS expert, but the above makes me want to puke. Isn't there a
> > cleaner way of doing whatever needs to be done without:
> >
> > 1) hard-coding a constant
> > 2) comparing a variable to an arbitrary pointer
> >
>
> Probably. We just need a pointer value that is definitely not a
> pointer to a valid cache_head object, and is not NULL.
> (void*)1 seems a reasonable choice, but maybe #defineing something
> would help.
include/linux/seq_file.h:
#define SEQ_START_TOKEN ((void *)1)
Greg.
--
Greg Banks, R&D Software Engineer, SGI Australian Software Group.
I don't speak for SGI.
next prev parent reply other threads:[~2006-07-25 4:25 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-25 1:54 [PATCH 000 of 9] knfsd: Introduction NeilBrown
2006-07-25 1:54 ` [PATCH 001 of 9] knfsd: knfsd: Add some missing newlines in printks NeilBrown
2006-07-25 1:54 ` [PATCH 002 of 9] knfsd: knfsd: Remove an unused variable from e_show() NeilBrown
2006-07-25 4:10 ` Josef Sipek
2006-07-25 4:20 ` Neil Brown
2006-07-25 4:24 ` Greg Banks [this message]
2006-07-25 4:32 ` [NFS] " Greg Banks
2006-07-25 4:36 ` Neil Brown
2006-07-25 5:53 ` Greg Banks
2006-07-25 1:54 ` [PATCH 003 of 9] knfsd: knfsd: Remove an unused variable from auth_unix_lookup() NeilBrown
2006-07-25 1:54 ` [PATCH 004 of 9] knfsd: Add a callback for when last rpc thread finishes NeilBrown
2006-07-25 1:54 ` [PATCH 005 of 9] knfsd: Be more selective in which sockets lockd listens on NeilBrown
2006-07-26 19:17 ` [NFS] " J. Bruce Fields
2006-07-28 2:32 ` Neil Brown
2006-07-25 1:54 ` [PATCH 006 of 9] knfsd: Remove nfsd_versbits as intermediate storage for desired versions NeilBrown
2006-07-26 19:34 ` [NFS] " J. Bruce Fields
2006-07-25 1:54 ` [PATCH 007 of 9] knfsd: Separate out some parts of nfsd_svc, which start nfs servers NeilBrown
2006-07-26 6:42 ` Andrew Morton
2006-07-25 1:55 ` [PATCH 008 of 9] knfsd: Define new nfsdfs file: portlist - contains list of ports NeilBrown
2006-07-25 1:55 ` [PATCH 009 of 9] knfsd: Allow sockets to be passed to nfsd via 'portlist' NeilBrown
2006-07-26 6:53 ` Andrew Morton
2006-07-26 20:41 ` [NFS] " J. Bruce Fields
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