NFSv4: Add tracepoints for debugging delegations
Set up tracepoints to track when delegations are set, reclaimed,
returned by the client, or recalled by the server.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index e6ebc4c..c074930 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -15,6 +15,7 @@
#include "internal.h"
#include "pnfs.h"
#include "nfs4session.h"
+#include "nfs4trace.h"
#ifdef NFS_DEBUG
#define NFSDBG_FACILITY NFSDBG_CALLBACK
@@ -93,6 +94,7 @@
default:
res = htonl(NFS4ERR_RESOURCE);
}
+ trace_nfs4_recall_delegation(inode, -ntohl(res));
iput(inode);
out:
dprintk("%s: exit with status = %d\n", __func__, ntohl(res));