1. 05 Jan, 2012 2 commits
    • Chuck Lever's avatar
      NFS: Retry mounting NFSROOT · 43717c7d
      Chuck Lever authored
      Lukas Razik <linux@razik.name> reports that on his SPARC system,
      booting with an NFS root file system stopped working after commit
      56463e50 "NFS: Use super.c for NFSROOT mount option parsing."
      
      We found that the network switch to which Lukas' client was attached
      was delaying access to the LAN after the client's NIC driver reported
      that its link was up.  The delay was longer than the timeouts used in
      the NFS client during mounting.
      
      NFSROOT worked for Lukas before commit 56463e50 because in those
      kernels, the client's first operation was an rpcbind request to
      determine which port the NFS server was listening on.  When that
      request failed after a long timeout, the client simply selected the
      default NFS port (2049).  By that time the switch was allowing access
      to the LAN, and the mount succeeded.
      
      Neither of these client behaviors is desirable, so reverting 56463e50
      is really not a choice.  Instead, introduce a mechanism that retries
      the NFSROOT mount request several times.  This is the same tactic that
      normal user space NFS mounts employ to overcome server and network
      delays.
      Signed-off-by: default avatarLukas Razik <linux@razik.name>
      [ cel: match kernel coding style, add proper patch description ]
      [ cel: add exponential back-off ]
      Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
      Tested-by: default avatarLukas Razik <linux@razik.name>
      Cc: stable@kernel.org # > 2.6.38
      Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
      43717c7d
    • Trond Myklebust's avatar
      SUNRPC: Clean up the RPCSEC_GSS service ticket requests · 68c97153
      Trond Myklebust authored
      Instead of hacking specific service names into gss_encode_v1_msg, we should
      just allow the caller to specify the service name explicitly.
      Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
      Acked-by: default avatarJ. Bruce Fields <bfields@redhat.com>
      68c97153
  2. 04 Jan, 2012 13 commits
  3. 03 Jan, 2012 9 commits
  4. 02 Jan, 2012 2 commits
  5. 31 Dec, 2011 6 commits
  6. 30 Dec, 2011 8 commits