NFSv4: Support recalling delegations by stateid part 2

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/delegation.c

@@ -76,7 +76,7 @@ static void nfs_delegation_claim_opens(struct inode *inode, const nfs4_stateid *
 			continue;
 		get_nfs_open_context(ctx);
 		spin_unlock(&inode->i_lock);
-		err = nfs4_open_delegation_recall(ctx, state);
+		err = nfs4_open_delegation_recall(ctx, state, stateid);
 		if (err >= 0)
 			err = nfs_delegation_claim_locks(ctx, state);
 		put_nfs_open_context(ctx);

fs/nfs/delegation.h

@@ -39,7 +39,7 @@ void nfs_delegation_reap_unclaimed(struct nfs_client *clp);
 
 /* NFSv4 delegation-related procedures */
 int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid);
-int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state);
+int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid);
 int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl);
 int nfs4_copy_delegation_stateid(nfs4_stateid *dst, struct inode *inode);
 

fs/nfs/nfs4proc.c

@@ -510,32 +510,30 @@ static int nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *sta
 	return ret;
 }
 
-static int _nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state)
+static int _nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
 {
 	struct nfs4_state_owner  *sp  = state->owner;
 	struct nfs4_opendata *opendata;
 	int ret;
 
-	if (!test_bit(NFS_DELEGATED_STATE, &state->flags))
-		return 0;
 	opendata = nfs4_opendata_alloc(&ctx->path, sp, 0, NULL);
 	if (opendata == NULL)
 		return -ENOMEM;
 	opendata->o_arg.claim = NFS4_OPEN_CLAIM_DELEGATE_CUR;
-	memcpy(opendata->o_arg.u.delegation.data, state->stateid.data,
+	memcpy(opendata->o_arg.u.delegation.data, stateid->data,
 			sizeof(opendata->o_arg.u.delegation.data));
 	ret = nfs4_open_recover(opendata, state);
 	nfs4_opendata_put(opendata);
 	return ret;
 }
 
-int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state)
+int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state *state, const nfs4_stateid *stateid)
 {
 	struct nfs4_exception exception = { };
 	struct nfs_server *server = NFS_SERVER(state->inode);
 	int err;
 	do {
-		err = _nfs4_open_delegation_recall(ctx, state);
+		err = _nfs4_open_delegation_recall(ctx, state, stateid);
 		switch (err) {
 			case 0:
 				return err;