aboutsummaryrefslogtreecommitdiff
path: root/fs/nfs/nfs4state.c
diff options
context:
space:
mode:
authorAlexandros Batsakis <batsakis@netapp.com>2009-12-05 13:46:14 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-12-05 13:46:14 -0500
commit0629e370dd5819efa5cf8d418a8e6729efe388ef (patch)
tree90883270cf5d677b13c81d0e6dbfaac38c5d18a9 /fs/nfs/nfs4state.c
parent2449ea2e191123729b2dc37a06fcb9d6ea7e2736 (diff)
nfs41: check SEQUENCE status flag
the server can indicate a number of error conditions by setting the appropriate bits in the SEQUENCE operation. The client re-establishes state with the server when it receives one of those, with the action depending on the specific case. Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4state.c')
-rw-r--r--fs/nfs/nfs4state.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 46c69e2248e..a86f3acf321 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1173,6 +1173,28 @@ static int nfs4_reclaim_lease(struct nfs_client *clp)
}
#ifdef CONFIG_NFS_V4_1
+void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
+{
+ if (!flags)
+ return;
+ else if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED) {
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ nfs4_state_start_reclaim_reboot(clp);
+ nfs4_schedule_state_recovery(clp);
+ } else if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED |
+ SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED |
+ SEQ4_STATUS_ADMIN_STATE_REVOKED |
+ SEQ4_STATUS_RECALLABLE_STATE_REVOKED |
+ SEQ4_STATUS_LEASE_MOVED)) {
+ set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+ nfs4_state_start_reclaim_nograce(clp);
+ nfs4_schedule_state_recovery(clp);
+ } else if (flags & (SEQ4_STATUS_CB_PATH_DOWN |
+ SEQ4_STATUS_BACKCHANNEL_FAULT |
+ SEQ4_STATUS_CB_PATH_DOWN_SESSION))
+ nfs_expire_all_delegations(clp);
+}
+
static void nfs4_session_recovery_handle_error(struct nfs_client *clp, int err)
{
switch (err) {