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Commit b9831b59 authored by J. Bruce Fields's avatar J. Bruce Fields
Browse files

nfsd4: don't remove rebooted client record until confirmation 



In the NFSv4.1 client-reboot case we're currently removing the client's
previous state in exchange_id.  That's wrong--we should be waiting till
the confirming create_session.

Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 32f16b38

fs/nfsd/nfs4state.c

+9 −4
Original line number Diff line number Diff line
@@ -1614,7 +1614,8 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, 
				status = nfserr_clid_inuse;

				goto out;

			}

			goto expire_client;

			expire_client(conf);

			goto out_new;

		}

		if (verfs_match) { /* case 2 */

			conf->cl_exchange_flags |= EXCHGID4_FLAG_CONFIRMED_R;
@@ -1622,8 +1623,6 @@ nfsd4_exchange_id(struct svc_rqst *rqstp, 
			goto out_copy;

		}

		/* case 5, client reboot */

expire_client:

		expire_client(conf);

		goto out_new;

	}
@@ -1805,8 +1804,14 @@ nfsd4_create_session(struct svc_rqst *rqstp, 


	/* cache solo and embedded create sessions under the state lock */

	nfsd4_cache_create_session(cr_ses, cs_slot, status);

	if (confirm_me)

	if (confirm_me) {

		unsigned int hash = clientstr_hashval(unconf->cl_recdir);

		struct nfs4_client *old =

			find_confirmed_client_by_str(conf->cl_recdir, hash);

		if (old)

			expire_client(old);

		move_to_confirmed(conf);

	}

out:

	nfs4_unlock_state();

	dprintk("%s returns %d\n", __func__, ntohl(status));