Linux-2.6.12-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!
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
new file mode 100644
index 0000000..1cf955b
--- /dev/null
+++ b/fs/nfsd/stats.c
@@ -0,0 +1,101 @@
+/*
+ * 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);
+
+ return 0;
+}
+
+static int nfsd_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, nfsd_proc_show, NULL);
+}
+
+static 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");
+}