From: Neil Brown <neilb@suse.de>
To: Greg Banks <gnb@melbourne.sgi.com>
Cc: Andrew Morton <akpm@osdl.org>,
Linux NFS Mailing List <nfs@lists.sourceforge.net>,
Josef Sipek <jsipek@fsl.cs.sunysb.edu>,
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 14:36:13 +1000 [thread overview]
Message-ID: <17605.40893.875871.653357@cse.unsw.edu.au> (raw)
In-Reply-To: message from Greg Banks on Tuesday July 25
On Tuesday July 25, gnb@melbourne.sgi.com wrote:
> 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:
> > > ...
> >
> > 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.
> >
> > Patches welcome.
>
> This trivial patch compiles.
Cool... you learn something new every day!
> --
>
> knfsd: Use SEQ_START_TOKEN instead of hardcoded magic (void*)1.
>
> Signed-off-by: Greg Banks <gnb@melbourne.sgi.com>
Acked-by: NeilBrown <neilb@suse.de>
NeilBrown
> ---
>
> fs/nfsd/export.c | 6 +++---
> 1 files changed, 3 insertions(+), 3 deletions(-)
>
> Index: linux/fs/nfsd/export.c
> ===================================================================
> --- linux.orig/fs/nfsd/export.c 2006-07-25 14:28:03.000000000 +1000
> +++ linux/fs/nfsd/export.c 2006-07-25 14:29:14.526574385 +1000
> @@ -1086,7 +1086,7 @@ static void *e_start(struct seq_file *m,
> exp_readlock();
> read_lock(&svc_export_cache.hash_lock);
> if (!n--)
> - return (void*)1;
> + return SEQ_START_TOKEN;
> hash = n >> 32;
> export = n & ((1LL<<32) - 1);
>
> @@ -1110,7 +1110,7 @@ static void *e_next(struct seq_file *m,
> struct cache_head *ch = p;
> int hash = (*pos >> 32);
>
> - if (p == (void*)1)
> + if (p == SEQ_START_TOKEN)
> hash = 0;
> else if (ch->next == NULL) {
> hash++;
> @@ -1180,7 +1180,7 @@ static int e_show(struct seq_file *m, vo
> struct svc_export *exp = container_of(cp, struct svc_export, h);
> svc_client *clp;
>
> - if (p == (void*)1) {
> + if (p == SEQ_START_TOKEN) {
> seq_puts(m, "# Version 1.1\n");
> seq_puts(m, "# Path Client(Flags) # IPs\n");
> return 0;
>
>
>
> Greg.
> --
> Greg Banks, R&D Software Engineer, SGI Australian Software Group.
> I don't speak for SGI.
>
>
>
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next prev parent reply other threads:[~2006-07-25 4:36 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 ` [NFS] " Greg Banks
2006-07-25 4:32 ` Greg Banks
2006-07-25 4:36 ` Neil Brown [this message]
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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