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Commit 4a706fa0 authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFSv4: Clean up nfs4_lock_delegation_recall 



All error cases are handled by the switch() statement, meaning that the
call to nfs4_handle_exception() is unreachable.

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 8b6cc4d6

fs/nfs/nfs4proc.c

+38 −48
Original line number Diff line number Diff line
@@ -5144,13 +5144,11 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request) 
int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)

{

	struct nfs_server *server = NFS_SERVER(state->inode);

	struct nfs4_exception exception = { };

	int err;



	err = nfs4_set_lock_state(state, fl);

	if (err != 0)

		goto out;

	do {

	err = _nfs4_do_setlk(state, F_SETLK, fl, NFS_LOCK_NEW);

	switch (err) {

		default:
@@ -5164,8 +5162,7 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl) 
			set_bit(NFS_DELEGATED_STATE, &state->flags);

		case -NFS4ERR_EXPIRED:

			nfs4_schedule_lease_recovery(server->nfs_client);

				err = -EAGAIN;

				goto out;

			return -EAGAIN;

		case -NFS4ERR_BADSESSION:

		case -NFS4ERR_BADSLOT:

		case -NFS4ERR_BAD_HIGH_SLOT:
@@ -5173,30 +5170,23 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl) 
		case -NFS4ERR_DEADSESSION:

			set_bit(NFS_DELEGATED_STATE, &state->flags);

			nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);

				err = -EAGAIN;

				goto out;

			return -EAGAIN;

		case -NFS4ERR_DELEG_REVOKED:

		case -NFS4ERR_ADMIN_REVOKED:

		case -NFS4ERR_BAD_STATEID:

		case -NFS4ERR_OPENMODE:

			nfs4_schedule_stateid_recovery(server, state);

				err = 0;

				goto out;

			return 0;

		case -NFS4ERR_DELAY:

		case -NFS4ERR_GRACE:

			set_bit(NFS_DELEGATED_STATE, &state->flags);

			ssleep(1);

				err = -EAGAIN;

				goto out;

			return -EAGAIN;

		case -ENOMEM:

		case -NFS4ERR_DENIED:

			/* kill_proc(fl->fl_pid, SIGLOST, 1); */

				err = 0;

				goto out;

			return 0;

	}

		set_bit(NFS_DELEGATED_STATE, &state->flags);

		err = nfs4_handle_exception(server, err, &exception);

	} while (exception.retry);

out:

	return err;

}