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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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8
fs/nfs/nfs4state.c
View file

@ -1032,6 +1032,14 @@ static void nfs4_state_start_reclaim_reboot(struct nfs_client *clp)
nfs4_state_mark_reclaim_helper(clp, nfs4_state_mark_reclaim_reboot);
}
static void nfs4_reclaim_complete(struct nfs_client *clp,
const struct nfs4_state_recovery_ops *ops)
{
/* Notify the server we're done reclaiming our state */
if (ops->reclaim_complete)
(void)ops->reclaim_complete(clp);
}
static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp)
{
struct nfs4_state_owner *sp;