Commit 4ece3a2d authored by Chuck Lever's avatar Chuck Lever Committed by Trond Myklebust
Browse files

NFS: add RPC I/O statistics to /proc/self/mountstats 



NFS client now shows various RPC I/O metrics in /proc/self/mountstats.

Test plan:
Mount/umount while doing "cat /proc/self/mountstats", multiple iterations
of connectathon locking suite.  Test with NFS version 2, 3, and 4.

Signed-off-by: default avatarChuck Lever <cel@netapp.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 11c556b3

fs/nfs/inode.c

+4 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include <linux/unistd.h>

#include <linux/sunrpc/clnt.h>

#include <linux/sunrpc/stats.h>

#include <linux/sunrpc/metrics.h>

#include <linux/nfs_fs.h>

#include <linux/nfs_mount.h>

#include <linux/nfs4_mount.h>
@@ -728,6 +729,9 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt) 
	seq_printf(m, "\n\tbytes:\t");

	for (i = 0; i < __NFSIOS_BYTESMAX; i++)

		seq_printf(m, "%Lu ", totals.bytes[i]);

	seq_printf(m, "\n");



	rpc_print_iostats(m, nfss->client);



	return 0;

}