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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/sunrpc/stats.c
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'net/sunrpc/stats.c')
-rw-r--r--net/sunrpc/stats.c175
1 files changed, 175 insertions, 0 deletions
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
new file mode 100644
index 00000000000..9b67dc19944
--- /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);
+ }
+}
+