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nfs41: RECLAIM_COMPLETE functionality

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Implements RECLAIM_COMPLETE as an asynchronous RPC.
NFS4ERR_DELAY is retried, NFS4ERR_DEADSESSION invokes the error handling
but does not result in a retry, since we don't want to have a lingering
RECLAIM_COMPLETE call sent in the middle of a possible new state recovery
cycle.  If a session reset occurs, a new wave of reclaim operations will
follow, containing their own RECLAIM_COMPLETE call.  We don't want a
retry to get on the way of recovery by incorrectly indicating to the
server that we're done reclaiming state.

A subsequent patch invokes the functionality.

Signed-off-by: Ricardo Labiaga <Ricardo.Labiaga@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Ricardo Labiaga 2009-12-05 16:08:41 -05:00 • committed by Trond Myklebust
parent 180197536b
commit fce5c838e1
3 changed files with 114 additions and 0 deletions
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fs/nfs/nfs4_fs.h
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@ -181,6 +181,7 @@ struct nfs4_state_recovery_ops {
int (*recover_lock)(struct nfs4_state *, struct file_lock *);
int (*establish_clid)(struct nfs_client *, struct rpc_cred *);
struct rpc_cred * (*get_clid_cred)(struct nfs_client *);
int (*reclaim_complete)(struct nfs_client *);
};
struct nfs4_state_maintenance_ops {