svn commit: r247491 - in stable/9/sys: fs/nfs nfsclient

[John Baldwin]

Author: jhb
Date: Thu Feb 28 19:00:57 2013
New Revision: 247491
URL: http://svnweb.freebsd.org/changeset/base/247491

Log:
  MFC 245476:
  - More properly handle interrupted NFS requests on an interruptible mount
    by returning an error of EINTR rather than EACCES.
  - While here, bring back some (but not all) of the NFS RPC statistics lost
    when krpc was committed.

Modified:
  stable/9/sys/fs/nfs/nfs_commonkrpc.c
  stable/9/sys/nfsclient/nfs_krpc.c
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/fs/   (props changed)

Modified: stable/9/sys/fs/nfs/nfs_commonkrpc.c
==============================================================================
--- stable/9/sys/fs/nfs/nfs_commonkrpc.c	Thu Feb 28 18:59:00 2013	(r247490)
+++ stable/9/sys/fs/nfs/nfs_commonkrpc.c	Thu Feb 28 19:00:57 2013	(r247491)
@@ -741,12 +741,18 @@ tryagain:
 	if (stat == RPC_SUCCESS) {
 		error = 0;
 	} else if (stat == RPC_TIMEDOUT) {
+		NFSINCRGLOBAL(newnfsstats.rpctimeouts);
 		error = ETIMEDOUT;
 	} else if (stat == RPC_VERSMISMATCH) {
+		NFSINCRGLOBAL(newnfsstats.rpcinvalid);
 		error = EOPNOTSUPP;
 	} else if (stat == RPC_PROGVERSMISMATCH) {
+		NFSINCRGLOBAL(newnfsstats.rpcinvalid);
 		error = EPROTONOSUPPORT;
+	} else if (stat == RPC_INTR) {
+		error = EINTR;
 	} else {
+		NFSINCRGLOBAL(newnfsstats.rpcinvalid);
 		error = EACCES;
 	}
 	if (error) {

Modified: stable/9/sys/nfsclient/nfs_krpc.c
==============================================================================
--- stable/9/sys/nfsclient/nfs_krpc.c	Thu Feb 28 18:59:00 2013	(r247490)
+++ stable/9/sys/nfsclient/nfs_krpc.c	Thu Feb 28 19:00:57 2013	(r247491)
@@ -549,14 +549,21 @@ tryagain:
 	 */
 	if (stat == RPC_SUCCESS)
 		error = 0;
-	else if (stat == RPC_TIMEDOUT)
+	else if (stat == RPC_TIMEDOUT) {
+		nfsstats.rpctimeouts++;
 		error = ETIMEDOUT;
-	else if (stat == RPC_VERSMISMATCH)
+	} else if (stat == RPC_VERSMISMATCH) {
+		nfsstats.rpcinvalid++;
 		error = EOPNOTSUPP;
-	else if (stat == RPC_PROGVERSMISMATCH)
+	} else if (stat == RPC_PROGVERSMISMATCH) {
+		nfsstats.rpcinvalid++;
 		error = EPROTONOSUPPORT;
-	else
+	} else if (stat == RPC_INTR) {
+		error = EINTR;
+	} else {
+		nfsstats.rpcinvalid++;
 		error = EACCES;
+	}
 	if (error)
 		goto nfsmout;
 
@@ -572,6 +579,7 @@ tryagain:
 	if (error == ENOMEM) {
 		m_freem(mrep);
 		AUTH_DESTROY(auth);
+		nfsstats.rpcinvalid++;
 		return (error);
 	}