commit cc668ab30b8a5505c1651b073882c1a67c802a48
author Trond Myklebust <Trond.Myklebust@netapp.com> Wed Aug 14 15:31:28 2013 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> Thu Aug 22 08:58:26 2013 -0400
tree 32caf9dab1ba04fcd6ac5ed36215bf7b845c3212
parent b5f875a92591d06c57e786b3c916e21e290ad844

NFSv4: Add tracepoints for debugging reads and writes

Set up tracepoints to track read, write and commit, as well as
pNFS reads and writes and commits to the data server.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/nfs4filelayout.c

diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index 17ed87e..a70cb3a 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -39,6 +39,7 @@
 #include "internal.h"
 #include "delegation.h"
 #include "nfs4filelayout.h"
+#include "nfs4trace.h"
 
 #define NFSDBG_FACILITY         NFSDBG_PNFS_LD
 
@@ -247,6 +248,7 @@
 	struct nfs_pgio_header *hdr = data->header;
 	int err;
 
+	trace_nfs4_pnfs_read(data, task->tk_status);
 	err = filelayout_async_handle_error(task, data->args.context->state,
 					    data->ds_clp, hdr->lseg);
 
@@ -363,6 +365,7 @@
 	struct nfs_pgio_header *hdr = data->header;
 	int err;
 
+	trace_nfs4_pnfs_write(data, task->tk_status);
 	err = filelayout_async_handle_error(task, data->args.context->state,
 					    data->ds_clp, hdr->lseg);
 
@@ -395,6 +398,7 @@
 {
 	int err;
 
+	trace_nfs4_pnfs_commit_ds(data, task->tk_status);
 	err = filelayout_async_handle_error(task, NULL, data->ds_clp,
 					    data->lseg);