[Cluster-devel] [PATCH 1/3] NLM lock failover

[Wendy Cheng]

The patch piggy-backs the logic into "rq_daddr" field of struct svc_rqst
where NFS server ip address is stored. Upon writing IPv4 address in
standard dot notation into /proc/fs/nfsd/nlm_unlock, the logic examines
NLM's global nlm_files list and subsequently unlock the associated file
if server ip address matches.

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

fs/lockd/svcsubs.c          |   58 +++++++++++++++++++++++++++++++++++++
+++---- 
fs/nfsd/nfsctl.c            |   57 +++++++++++++++++++++++++++++++++++++
+++++
include/linux/lockd/bind.h  |    5 +++
include/linux/lockd/lockd.h |    3 ++
include/linux/nfsd/debug.h  |    1
net/sunrpc/svcsock.c        |    5 +++
6 files changed, 124 insertions(+), 5 deletions(-)



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