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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-02-05 12:35:16 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-02-11 15:33:13 -0500
commit37380e4264dbda9753e470a30d4322097aab7152 (patch)
tree2ec4ea71b702e0bb2718b54c8f7a0cf274605609 /fs/nfs
parentd25be546a86fcb2ea919fb909a42b79aa40b816c (diff)
downloadlinux-37380e4264dbda9753e470a30d4322097aab7152.tar.gz
NFSv4: Fix up the return values of nfs4_open_delegation_recall
Adjust the return values so that they return EAGAIN to the caller in cases where we might want to retry the delegation recall after the state recovery has run. Note that we can't wait and retry in this routine, because the caller may be the state manager thread. If delegation recall fails due to a session or reboot related issue, also ensure that we mark the stateid as delegated so that nfs_delegation_claim_opens can find it again later. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4proc.c25
1 files changed, 11 insertions, 14 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a1e89e270ad..f7e05ade557 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1355,19 +1355,18 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
+ err = -EAGAIN;
goto out;
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
case -NFS4ERR_EXPIRED:
/* Don't recall a delegation if it was lost */
nfs4_schedule_lease_recovery(server->nfs_client);
+ err = -EAGAIN;
goto out;
- case -ERESTARTSYS:
- /*
- * The show must go on: exit, but mark the
- * stateid as needing recovery.
- */
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
@@ -1378,6 +1377,7 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
err = 0;
goto out;
}
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out:
@@ -4957,24 +4957,22 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
case 0:
case -ESTALE:
goto out;
- case -NFS4ERR_EXPIRED:
- nfs4_schedule_stateid_recovery(server, state);
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_STALE_STATEID:
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
+ case -NFS4ERR_EXPIRED:
nfs4_schedule_lease_recovery(server->nfs_client);
+ err = -EAGAIN;
goto out;
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
case -NFS4ERR_BAD_HIGH_SLOT:
case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
case -NFS4ERR_DEADSESSION:
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
+ err = -EAGAIN;
goto out;
- case -ERESTARTSYS:
- /*
- * The show must go on: exit, but mark the
- * stateid as needing recovery.
- */
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
@@ -4987,9 +4985,8 @@ int nfs4_lock_delegation_recall(struct nfs4_state *state, struct file_lock *fl)
/* kill_proc(fl->fl_pid, SIGLOST, 1); */
err = 0;
goto out;
- case -NFS4ERR_DELAY:
- break;
}
+ set_bit(NFS_DELEGATED_STATE, &state->flags);
err = nfs4_handle_exception(server, err, &exception);
} while (exception.retry);
out: