[PATCH] knfsd: nfsd4: add per-operation server stats
Add an nfs4 operations count array to nfsd_stats structure. The count is
incremented in nfsd4_proc_compound() where all the operations are handled
by the nfsv4 server. This count of individual nfsv4 operations is also
entered into /proc filesystem.
Signed-off-by: Shankar Anand<shanand@novell.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index b0e095e..ee4eff2 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -721,6 +721,12 @@
return nfs_ok;
}
+static inline void nfsd4_increment_op_stats(u32 opnum)
+{
+ if (opnum >= FIRST_NFS4_OP && opnum <= LAST_NFS4_OP)
+ nfsdstats.nfs4_opcount[opnum]++;
+}
+
/*
* COMPOUND call.
@@ -930,6 +936,8 @@
/* XXX Ugh, we need to get rid of this kind of special case: */
if (op->opnum == OP_READ && op->u.read.rd_filp)
fput(op->u.read.rd_filp);
+
+ nfsd4_increment_op_stats(op->opnum);
}
out:
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
index 57265d5..71944cd 100644
--- a/fs/nfsd/stats.c
+++ b/fs/nfsd/stats.c
@@ -72,6 +72,16 @@
/* 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;
}
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 5f681d5..db05182 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -157,6 +157,12 @@
OP_ILLEGAL = 10044,
};
+/*Defining first and last NFS4 operations implemented.
+Needs to be updated if more operations are defined in future.*/
+
+#define FIRST_NFS4_OP OP_ACCESS
+#define LAST_NFS4_OP OP_RELEASE_LOCKOWNER
+
enum nfsstat4 {
NFS4_OK = 0,
NFS4ERR_PERM = 1,
diff --git a/include/linux/nfsd/stats.h b/include/linux/nfsd/stats.h
index b6f1e0c..28a82fd 100644
--- a/include/linux/nfsd/stats.h
+++ b/include/linux/nfsd/stats.h
@@ -9,6 +9,8 @@
#ifndef LINUX_NFSD_STATS_H
#define LINUX_NFSD_STATS_H
+#include <linux/nfs4.h>
+
struct nfsd_stats {
unsigned int rchits; /* repcache hits */
unsigned int rcmisses; /* repcache hits */
@@ -27,6 +29,10 @@
unsigned int ra_size; /* size of ra cache */
unsigned int ra_depth[11]; /* number of times ra entry was found that deep
* in the cache (10percentiles). [10] = not found */
+#ifdef CONFIG_NFSD_V4
+ unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */
+#endif
+
};
/* thread usage wraps very million seconds (approx one fortnight) */