diff options
| author |   Greg Banks <gnb@sgi.com> | 2009-01-13 21:26:36 +1100 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@citi.umich.edu> | 2009-03-18 17:38:42 -0400 |
| commit | 03cf6c9f49a8fea953d38648d016e3f46e814991 (patch) | |
| tree | c7e639bd9fb775af1919d2442d0bf2306dfbfca7 /fs/nfsd/nfssvc.c | |
| parent | knfsd: avoid overloading the CPU scheduler with enormous load averages (diff) | |
| download | linux-dev-03cf6c9f49a8fea953d38648d016e3f46e814991.tar.xz linux-dev-03cf6c9f49a8fea953d38648d016e3f46e814991.zip | |
knfsd: add file to export stats about nfsd pools
Add /proc/fs/nfsd/pool_stats to export to userspace various
statistics about the operation of rpc server thread pools.
This patch is based on a forward-ported version of
knfsd-add-pool-thread-stats which has been shipping in the SGI
"Enhanced NFS" product since 2006 and which was previously
posted:
http://article.gmane.org/gmane.linux.nfs/10375
It has also been updated thus:
* moved EXPORT_SYMBOL() to near the function it exports
* made the new struct struct seq_operations const
* used SEQ_START_TOKEN instead of ((void *)1)
* merged fix from SGI PV 990526 "sunrpc: use dprintk instead of
printk in svc_pool_stats_*()" by Harshula Jayasuriya.
* merged fix from SGI PV 964001 "Crash reading pool_stats before
nfsds are started".
Signed-off-by: Greg Banks <gnb@sgi.com>
Signed-off-by: Harshula Jayasuriya <harshula@sgi.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd/nfssvc.c')
| -rw-r--r-- | fs/nfsd/nfssvc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index c3eb0759fd57..ef0a3686639d 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -546,3 +546,10 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp) nfsd_cache_update(rqstp, proc->pc_cachetype, statp + 1); return 1; } + +int nfsd_pool_stats_open(struct inode *inode, struct file *file) +{ + if (nfsd_serv == NULL) + return -ENODEV; + return svc_pool_stats_open(nfsd_serv, file); +} |