Author: rmacklem
Date: Sun May  1 02:36:09 2011
New Revision: 221291
URL: http://svn.freebsd.org/changeset/base/221291

Log:
  MFC: r220739
  Change some defaults in the experimental NFS client to be the
  same as the regular NFS client for NFSv3. The main one is making
  use of a reserved port# the default. Also, set the retry limit
  for TCP the same and fix the code so that it doesn't disable
  readdirplus for NFSv4.

Modified:
  stable/8/sys/fs/nfs/nfs.h
  stable/8/sys/fs/nfsclient/nfs_clvfsops.c
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/fs/nfs/nfs.h
==============================================================================
--- stable/8/sys/fs/nfs/nfs.h   Sun May  1 02:22:54 2011        (r221290)
+++ stable/8/sys/fs/nfs/nfs.h   Sun May  1 02:36:09 2011        (r221291)
@@ -56,6 +56,7 @@
 #define        NFSV4_UPCALLRETRY 4             /* Number of retries before 
failure */
 #define        NFS_MAXWINDOW   1024            /* Max number of outstanding 
requests */
 #define        NFS_RETRANS     10              /* Num of retrans for soft 
mounts */
+#define        NFS_RETRANS_TCP 2               /* Num of retrans for TCP soft 
mounts */
 #define        NFS_MAXGRPS     16              /* Max. size of groups list */
 #define        NFS_TRYLATERDEL 15              /* Maximum delay timeout (sec) 
*/
 #ifndef NFS_REMOVETIMEO

Modified: stable/8/sys/fs/nfsclient/nfs_clvfsops.c
==============================================================================
--- stable/8/sys/fs/nfsclient/nfs_clvfsops.c    Sun May  1 02:22:54 2011        
(r221290)
+++ stable/8/sys/fs/nfsclient/nfs_clvfsops.c    Sun May  1 02:36:09 2011        
(r221291)
@@ -46,6 +46,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/buf.h>
 #include <sys/clock.h>
 #include <sys/jail.h>
+#include <sys/limits.h>
 #include <sys/lock.h>
 #include <sys/malloc.h>
 #include <sys/mbuf.h>
@@ -556,14 +557,29 @@ nfs_decode_args(struct mount *mp, struct
        if (argp->sotype == SOCK_STREAM) {
                nmp->nm_flag &= ~NFSMNT_NOCONN;
                nmp->nm_timeo = NFS_MAXTIMEO;
+               if ((argp->flags & NFSMNT_NFSV4) != 0)
+                       nmp->nm_retry = INT_MAX;
+               else
+                       nmp->nm_retry = NFS_RETRANS_TCP;
        }
 
-       /* Also clear RDIRPLUS if not NFSv3, it crashes some servers */
-       if ((argp->flags & NFSMNT_NFSV3) == 0)
+       /* Also clear RDIRPLUS if NFSv2, it crashes some servers */
+       if ((argp->flags & (NFSMNT_NFSV3 | NFSMNT_NFSV4)) == 0) {
+               argp->flags &= ~NFSMNT_RDIRPLUS;
                nmp->nm_flag &= ~NFSMNT_RDIRPLUS;
+       }
+
+       /* Clear NFSMNT_RESVPORT for NFSv4, since it is not required. */
+       if ((argp->flags & NFSMNT_NFSV4) != 0) {
+               argp->flags &= ~NFSMNT_RESVPORT;
+               nmp->nm_flag &= ~NFSMNT_RESVPORT;
+       }
 
+       /* Re-bind if rsrvd port requested and wasn't on one */
+       adjsock = !(nmp->nm_flag & NFSMNT_RESVPORT)
+                 && (argp->flags & NFSMNT_RESVPORT);
        /* Also re-bind if we're switching to/from a connected UDP socket */
-       adjsock = ((nmp->nm_flag & NFSMNT_NOCONN) !=
+       adjsock |= ((nmp->nm_flag & NFSMNT_NOCONN) !=
                    (argp->flags & NFSMNT_NOCONN));
 
        /* Update flags atomically.  Don't change the lock bits. */
@@ -708,7 +724,7 @@ nfs_mount(struct mount *mp)
            .proto = 0,
            .fh = NULL,
            .fhsize = 0,
-           .flags = 0,
+           .flags = NFSMNT_RESVPORT,
            .wsize = NFS_WSIZE,
            .rsize = NFS_RSIZE,
            .readdirsize = NFS_READDIRSIZE,
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