[Cluster-devel] [PATCH 3/4 Revised] NLM failover - statd changes

[Wendy Cheng <wcheng@redhat.com>]

This kernel patch should be paired with nfs-utils user mode changes (in 
patch 4-4 based on nfs-utils-1.0.8-rc4) that is optional. If changes 
made in patch 4-4 is not presented in nfs-utils, the rpc.statd will 
ignore whatever this kernel patch does.

The changes record the ip interface that accepts the lock requests and 
passes the correct "my_name" (in standard IPV4 dot notation) to user 
mode statd (instead of system_utsname.nodename). This enables rpc.statd 
to add the correct taken-over IPv4 address into the 3rd parameter of 
ha_callout program. Current nfs-utils always resets "my_name" into 
loopback address (127.0.0.1), regardless the statement made in rpc.statd 
man page. Check out "man rpc.statd" for details.

Signed-off-by: S. Wendy Cheng <wcheng@redhat.com>
Signed-off-by: Lon Hohberger  <lhh@redhat.com>

 fs/lockd/host.c                |    4 ++--
 fs/lockd/mon.c                 |   21 +++++++++++++++++----
 fs/lockd/svc4proc.c            |    8 +++++++-
 fs/lockd/svcproc.c             |    2 +-
 include/linux/lockd/lockd.h    |    5 +++--
 include/linux/lockd/sm_inter.h |    1 +
 include/linux/sunrpc/svc.h     |    5 +++--
 net/sunrpc/svcsock.c           |    5 +++++
 8 files changed, 39 insertions(+), 12 deletions(-)


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