diff options
Diffstat (limited to 'net/sunrpc/stats.c')
| -rw-r--r-- | net/sunrpc/stats.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c new file mode 100644 index 000000000000..9b67dc19944c --- /dev/null +++ b/net/sunrpc/stats.c @@ -0,0 +1,175 @@ +/* + * linux/net/sunrpc/stats.c + * + * procfs-based user access to generic RPC statistics. The stats files + * reside in /proc/net/rpc. + * + * The read routines assume that the buffer passed in is just big enough. + * If you implement an RPC service that has its own stats routine which + * appends the generic RPC stats, make sure you don't exceed the PAGE_SIZE + * limit. + * + * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de> + */ + +#include <linux/module.h> + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/sunrpc/clnt.h> +#include <linux/sunrpc/svcsock.h> + +#define RPCDBG_FACILITY RPCDBG_MISC + +struct proc_dir_entry *proc_net_rpc = NULL; + +/* + * Get RPC client stats + */ +static int rpc_proc_show(struct seq_file *seq, void *v) { + const struct rpc_stat *statp = seq->private; + const struct rpc_program *prog = statp->program; + int i, j; + + seq_printf(seq, + "net %d %d %d %d\n", + statp->netcnt, + statp->netudpcnt, + statp->nettcpcnt, + statp->nettcpconn); + seq_printf(seq, + "rpc %d %d %d\n", + statp->rpccnt, + statp->rpcretrans, + statp->rpcauthrefresh); + + for (i = 0; i < prog->nrvers; i++) { + const struct rpc_version *vers = prog->version[i]; + if (!vers) + continue; + seq_printf(seq, "proc%d %d", + vers->number, vers->nrprocs); + for (j = 0; j < vers->nrprocs; j++) + seq_printf(seq, " %d", + vers->procs[j].p_count); + seq_putc(seq, '\n'); + } + return 0; +} + +static int rpc_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, rpc_proc_show, PDE(inode)->data); +} + +static struct file_operations rpc_proc_fops = { + .owner = THIS_MODULE, + .open = rpc_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +/* + * Get RPC server stats + */ +void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp) { + const struct svc_program *prog = statp->program; + const struct svc_procedure *proc; + const struct svc_version *vers; + int i, j; + + seq_printf(seq, + "net %d %d %d %d\n", + statp->netcnt, + statp->netudpcnt, + statp->nettcpcnt, + statp->nettcpconn); + seq_printf(seq, + "rpc %d %d %d %d %d\n", + statp->rpccnt, + statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt, + statp->rpcbadfmt, + statp->rpcbadauth, + statp->rpcbadclnt); + + for (i = 0; i < prog->pg_nvers; i++) { + if (!(vers = prog->pg_vers[i]) || !(proc = vers->vs_proc)) + continue; + seq_printf(seq, "proc%d %d", i, vers->vs_nproc); + for (j = 0; j < vers->vs_nproc; j++, proc++) + seq_printf(seq, " %d", proc->pc_count); + seq_putc(seq, '\n'); + } +} + +/* + * Register/unregister RPC proc files + */ +static inline struct proc_dir_entry * +do_register(const char *name, void *data, struct file_operations *fops) +{ + struct proc_dir_entry *ent; + + rpc_proc_init(); + dprintk("RPC: registering /proc/net/rpc/%s\n", name); + + ent = create_proc_entry(name, 0, proc_net_rpc); + if (ent) { + ent->proc_fops = fops; + ent->data = data; + } + return ent; +} + +struct proc_dir_entry * +rpc_proc_register(struct rpc_stat *statp) +{ + return do_register(statp->program->name, statp, &rpc_proc_fops); +} + +void +rpc_proc_unregister(const char *name) +{ + remove_proc_entry(name, proc_net_rpc); +} + +struct proc_dir_entry * +svc_proc_register(struct svc_stat *statp, struct file_operations *fops) +{ + return do_register(statp->program->pg_name, statp, fops); +} + +void +svc_proc_unregister(const char *name) +{ + remove_proc_entry(name, proc_net_rpc); +} + +void +rpc_proc_init(void) +{ + dprintk("RPC: registering /proc/net/rpc\n"); + if (!proc_net_rpc) { + struct proc_dir_entry *ent; + ent = proc_mkdir("rpc", proc_net); + if (ent) { + ent->owner = THIS_MODULE; + proc_net_rpc = ent; + } + } +} + +void +rpc_proc_exit(void) +{ + dprintk("RPC: unregistering /proc/net/rpc\n"); + if (proc_net_rpc) { + proc_net_rpc = NULL; + remove_proc_entry("net/rpc", NULL); + } +} + |