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Commit 111d489f authored by Trond Myklebust's avatar Trond Myklebust
Browse files

NFSv4.1: Ensure that we handle _all_ SEQUENCE status bits. 



Currently, the code assumes that the SEQUENCE status bits are mutually
exclusive. They are not...

Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org [>= 2.6.34]
parent 4f38e4aa

fs/nfs/nfs4state.c

+4 −4
Original line number Diff line number Diff line
@@ -1530,16 +1530,16 @@ void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags) 
{

	if (!flags)

		return;

	else if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED)

	if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED)

		nfs41_handle_server_reboot(clp);

	else if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED |

	if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED |

			    SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED |

			    SEQ4_STATUS_ADMIN_STATE_REVOKED |

			    SEQ4_STATUS_LEASE_MOVED))

		nfs41_handle_state_revoked(clp);

	else if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED)

	if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED)

		nfs41_handle_recallable_state_revoked(clp);

	else if (flags & (SEQ4_STATUS_CB_PATH_DOWN |

	if (flags & (SEQ4_STATUS_CB_PATH_DOWN |

			    SEQ4_STATUS_BACKCHANNEL_FAULT |

			    SEQ4_STATUS_CB_PATH_DOWN_SESSION))

		nfs41_handle_cb_path_down(clp);