Revision 54866f032307063776b4eff7eadb131d47f9f9b4 authored by Linus Torvalds on 01 November 2007, 19:09:33 UTC, committed by Linus Torvalds on 01 November 2007, 19:09:33 UTC
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IRDA] IRNET: Fix build when TCGETS2 is defined. [NET]: docbook fixes for netif_ functions [NET]: Hide the net_ns kmem cache [NET]: Mark the setup_net as __net_init [NET]: Hide the dead code in the net_namespace.c [NET]: Relax the reference counting of init_net_ns [NETNS]: Make the init/exit hooks checks outside the loop [NET]: Forget the zero_it argument of sk_alloc() [NET]: Remove bogus zero_it argument from sk_alloc [NET]: Make the sk_clone() lighter [NET]: Move some core sock setup into sk_prot_alloc [NET]: Auto-zero the allocated sock object [NET]: Cleanup the allocation/freeing of the sock object [NET]: Move the get_net() from sock_copy() [NET]: Move the sock_copy() from the header [TCP]: Another TAGBITS -> SACKED_ACKED|LOST conversion [TCP]: Process DSACKs that reside within a SACK block
stats.c
/*
* linux/fs/nfsd/stats.c
*
* procfs-based user access to knfsd statistics
*
* /proc/net/rpc/nfsd
*
* Format:
* rc <hits> <misses> <nocache>
* Statistsics for the reply cache
* fh <stale> <total-lookups> <anonlookups> <dir-not-in-dcache> <nondir-not-in-dcache>
* statistics for filehandle lookup
* io <bytes-read> <bytes-writtten>
* statistics for IO throughput
* th <threads> <fullcnt> <10%-20%> <20%-30%> ... <90%-100%> <100%>
* time (seconds) when nfsd thread usage above thresholds
* and number of times that all threads were in use
* ra cache-size <10% <20% <30% ... <100% not-found
* number of times that read-ahead entry was found that deep in
* the cache.
* plus generic RPC stats (see net/sunrpc/stats.c)
*
* Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
*/
#include <linux/kernel.h>
#include <linux/time.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/stat.h>
#include <linux/module.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/stats.h>
#include <linux/nfsd/nfsd.h>
#include <linux/nfsd/stats.h>
struct nfsd_stats nfsdstats;
struct svc_stat nfsd_svcstats = {
.program = &nfsd_program,
};
static int nfsd_proc_show(struct seq_file *seq, void *v)
{
int i;
seq_printf(seq, "rc %u %u %u\nfh %u %u %u %u %u\nio %u %u\n",
nfsdstats.rchits,
nfsdstats.rcmisses,
nfsdstats.rcnocache,
nfsdstats.fh_stale,
nfsdstats.fh_lookup,
nfsdstats.fh_anon,
nfsdstats.fh_nocache_dir,
nfsdstats.fh_nocache_nondir,
nfsdstats.io_read,
nfsdstats.io_write);
/* thread usage: */
seq_printf(seq, "th %u %u", nfsdstats.th_cnt, nfsdstats.th_fullcnt);
for (i=0; i<10; i++) {
unsigned int jifs = nfsdstats.th_usage[i];
unsigned int sec = jifs / HZ, msec = (jifs % HZ)*1000/HZ;
seq_printf(seq, " %u.%03u", sec, msec);
}
/* newline and ra-cache */
seq_printf(seq, "\nra %u", nfsdstats.ra_size);
for (i=0; i<11; i++)
seq_printf(seq, " %u", nfsdstats.ra_depth[i]);
seq_putc(seq, '\n');
/* show my rpc info */
svc_seq_show(seq, &nfsd_svcstats);
#ifdef CONFIG_NFSD_V4
/* Show count for individual nfsv4 operations */
/* Writing operation numbers 0 1 2 also for maintaining uniformity */
seq_printf(seq,"proc4ops %u", LAST_NFS4_OP + 1);
for (i = 0; i <= LAST_NFS4_OP; i++)
seq_printf(seq, " %u", nfsdstats.nfs4_opcount[i]);
seq_putc(seq, '\n');
#endif
return 0;
}
static int nfsd_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, nfsd_proc_show, NULL);
}
static const struct file_operations nfsd_proc_fops = {
.owner = THIS_MODULE,
.open = nfsd_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
void
nfsd_stat_init(void)
{
svc_proc_register(&nfsd_svcstats, &nfsd_proc_fops);
}
void
nfsd_stat_shutdown(void)
{
svc_proc_unregister("nfsd");
}
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