@@ -795,6 +795,38 @@ void nfs_remove_bad_delegation(struct inode *inode,
}
EXPORT_SYMBOL_GPL(nfs_remove_bad_delegation);
+void nfs_delegation_mark_returned(struct inode *inode,
+ const nfs4_stateid *stateid)
+{
+ struct nfs_delegation *delegation;
+
+ if (!inode)
+ return;
+
+ rcu_read_lock();
+ delegation = rcu_dereference(NFS_I(inode)->delegation);
+ if (!delegation)
+ goto out_rcu_unlock;
+
+ spin_lock(&delegation->lock);
+ if (!nfs4_stateid_match_other(stateid, &delegation->stateid))
+ goto out_spin_unlock;
+ if (stateid->seqid &&
+ nfs4_stateid_is_newer(&delegation->stateid, stateid))
+ goto out_clear_returning;
+
+ set_bit(NFS_DELEGATION_REVOKED, &delegation->flags);
+
+out_clear_returning:
+ clear_bit(NFS_DELEGATION_RETURNING, &delegation->flags);
+out_spin_unlock:
+ spin_unlock(&delegation->lock);
+out_rcu_unlock:
+ rcu_read_unlock();
+
+ nfs_inode_find_state_and_recover(inode, stateid);
+}
+
/**
* nfs_expire_unused_delegation_types
* @clp: client to process
@@ -53,6 +53,7 @@ void nfs_expire_unreferenced_delegations(struct nfs_client *clp);
int nfs_client_return_marked_delegations(struct nfs_client *clp);
int nfs_delegations_present(struct nfs_client *clp);
void nfs_remove_bad_delegation(struct inode *inode, const nfs4_stateid *stateid);
+void nfs_delegation_mark_returned(struct inode *inode, const nfs4_stateid *stateid);
void nfs_delegation_mark_reclaim(struct nfs_client *clp);
void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
@@ -6211,6 +6211,7 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
if (exception.retry)
goto out_restart;
}
+ nfs_delegation_mark_returned(data->inode, data->args.stateid);
data->rpc_status = task->tk_status;
return;
out_restart:
If the delegation was successfully returned, then mark it as revoked. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> --- fs/nfs/delegation.c | 32 ++++++++++++++++++++++++++++++++ fs/nfs/delegation.h | 1 + fs/nfs/nfs4proc.c | 1 + 3 files changed, 34 insertions(+)