diff options
| -rw-r--r-- | fs/nfs/nfs4_fs.h | 1 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 3 | ||||
| -rw-r--r-- | fs/nfs/nfs4state.c | 47 |
3 files changed, 32 insertions, 19 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index 1c6fbd1cda97..76eda46b5a17 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -39,6 +39,7 @@ struct idmap; enum nfs4_client_state { NFS4CLNT_STATE_RECOVER = 0, + NFS4CLNT_CHECK_LEASE, NFS4CLNT_LEASE_EXPIRED, NFS4CLNT_RECLAIM_REBOOT, NFS4CLNT_RECLAIM_NOGRACE, diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 279ab36b5a67..780ba004b3dd 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -984,7 +984,8 @@ static int nfs4_recover_expired_lease(struct nfs_server *server) ret = nfs4_wait_clnt_recover(server->client, clp); if (ret != 0) return ret; - if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) + if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) && + !test_bit(NFS4CLNT_CHECK_LEASE,&clp->cl_state)) break; nfs4_schedule_state_recovery(clp); } diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index e5cd8cacdcee..3cc88a5d9881 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -817,6 +817,8 @@ void nfs4_schedule_state_recovery(struct nfs_client *clp) { if (!clp) return; + if (!test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) + set_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state); if (test_and_set_bit(NFS4CLNT_STATE_RECOVER, &clp->cl_state) == 0) nfs4_recover_state(clp); } @@ -1019,6 +1021,23 @@ static void nfs4_state_end_reclaim_nograce(struct nfs_client *clp) clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state); } +static void nfs4_recovery_handle_error(struct nfs_client *clp, int error) +{ + switch (error) { + case -NFS4ERR_CB_PATH_DOWN: + set_bit(NFS4CLNT_CB_PATH_DOWN, &clp->cl_state); + break; + case -NFS4ERR_STALE_CLIENTID: + case -NFS4ERR_LEASE_MOVED: + set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state); + nfs4_state_start_reclaim_reboot(clp); + break; + case -NFS4ERR_EXPIRED: + set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state); + nfs4_state_start_reclaim_nograce(clp); + } +} + static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recovery_ops *ops) { struct rb_node *pos; @@ -1031,6 +1050,7 @@ static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recov if (status < 0) break; } + nfs4_recovery_handle_error(clp, status); return status; } @@ -1045,19 +1065,7 @@ static int nfs4_check_lease(struct nfs_client *clp) /* Yes there are: try to renew the old lease */ status = nfs4_proc_renew(clp, cred); put_rpccred(cred); - switch (status) { - case -NFS4ERR_CB_PATH_DOWN: - set_bit(NFS4CLNT_CB_PATH_DOWN, &clp->cl_state); - break; - case -NFS4ERR_STALE_CLIENTID: - case -NFS4ERR_LEASE_MOVED: - set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state); - nfs4_state_start_reclaim_reboot(clp); - break; - case -NFS4ERR_EXPIRED: - set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state); - nfs4_state_start_reclaim_nograce(clp); - } + nfs4_recovery_handle_error(clp, status); return status; } @@ -1095,8 +1103,6 @@ static int reclaimer(void *ptr) /* Ensure exclusive access to NFSv4 state */ down_write(&clp->cl_sem); while (!list_empty(&clp->cl_superblocks)) { - status = nfs4_check_lease(clp); - if (test_and_clear_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state)) { /* We're going to have to re-establish a clientid */ status = nfs4_reclaim_lease(clp); @@ -1106,16 +1112,21 @@ static int reclaimer(void *ptr) continue; goto out_error; } + clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state); + } + + if (test_and_clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state)) { + status = nfs4_check_lease(clp); + if (status != 0) + continue; } /* First recover reboot state... */ if (test_and_clear_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) { /* Note: list is protected by exclusive lock on cl->cl_sem */ status = nfs4_do_reclaim(clp, &nfs4_reboot_recovery_ops); - if (status == -NFS4ERR_STALE_CLIENTID) { - set_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state); + if (status == -NFS4ERR_STALE_CLIENTID) continue; - } nfs4_state_end_reclaim_reboot(clp); continue; } |