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authorNeilBrown <neilb@suse.com>2019-05-30 10:41:28 +1000
committerTrond Myklebust <trond.myklebust@hammerspace.com>2019-07-06 14:54:50 -0400
commit5a0c257f8e0f4c4b3c33dff545317c21a921303e (patch)
treea1b50f2ffd25d25819faaea8045e814edec64324 /fs
parent53c326307156249253be36b33cd6c32f4a24f9b2 (diff)
downloadlinux-stericsson-5a0c257f8e0f4c4b3c33dff545317c21a921303e.tar.gz
NFS: send state management on a single connection.
With NFSv4.1, different network connections need to be explicitly bound to a session. During session startup, this is not possible so only a single connection must be used for session startup. So add a task flag to disable the default round-robin choice of connections (when nconnect > 1) and force the use of a single connection. Then use that flag on all requests for session management - for consistence, include NFSv4.0 management (SETCLIENTID) and session destruction Reported-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/nfs4proc.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 26626ea1f197..d115d9973efc 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5992,7 +5992,7 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
.rpc_message = &msg,
.callback_ops = &nfs4_setclientid_ops,
.callback_data = &setclientid,
- .flags = RPC_TASK_TIMEOUT,
+ .flags = RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN,
};
int status;
@@ -6058,7 +6058,8 @@ int nfs4_proc_setclientid_confirm(struct nfs_client *clp,
dprintk("NFS call setclientid_confirm auth=%s, (client ID %llx)\n",
clp->cl_rpcclient->cl_auth->au_ops->au_name,
clp->cl_clientid);
- status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+ status = rpc_call_sync(clp->cl_rpcclient, &msg,
+ RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN);
trace_nfs4_setclientid_confirm(clp, status);
dprintk("NFS reply setclientid_confirm: %d\n", status);
return status;
@@ -7639,7 +7640,7 @@ static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct
NFS_SP4_MACH_CRED_SECINFO, &clnt, &msg);
status = nfs4_call_sync(clnt, NFS_SERVER(dir), &msg, &args.seq_args,
- &res.seq_res, 0);
+ &res.seq_res, RPC_TASK_NO_ROUND_ROBIN);
dprintk("NFS reply secinfo: %d\n", status);
put_cred(cred);
@@ -7977,7 +7978,7 @@ nfs4_run_exchange_id(struct nfs_client *clp, const struct cred *cred,
.rpc_client = clp->cl_rpcclient,
.callback_ops = &nfs4_exchange_id_call_ops,
.rpc_message = &msg,
- .flags = RPC_TASK_TIMEOUT,
+ .flags = RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN,
};
struct nfs41_exchange_id_data *calldata;
int status;
@@ -8202,7 +8203,8 @@ static int _nfs4_proc_destroy_clientid(struct nfs_client *clp,
};
int status;
- status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+ status = rpc_call_sync(clp->cl_rpcclient, &msg,
+ RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN);
trace_nfs4_destroy_clientid(clp, status);
if (status)
dprintk("NFS: Got error %d from the server %s on "
@@ -8481,7 +8483,8 @@ static int _nfs4_proc_create_session(struct nfs_client *clp,
nfs4_init_channel_attrs(&args, clp->cl_rpcclient);
args.flags = (SESSION4_PERSIST | SESSION4_BACK_CHAN);
- status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+ status = rpc_call_sync(session->clp->cl_rpcclient, &msg,
+ RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN);
trace_nfs4_create_session(clp, status);
switch (status) {
@@ -8557,7 +8560,8 @@ int nfs4_proc_destroy_session(struct nfs4_session *session,
if (!test_and_clear_bit(NFS4_SESSION_ESTABLISHED, &session->session_state))
return 0;
- status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+ status = rpc_call_sync(session->clp->cl_rpcclient, &msg,
+ RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN);
trace_nfs4_destroy_session(session->clp, status);
if (status)
@@ -8811,7 +8815,7 @@ static int nfs41_proc_reclaim_complete(struct nfs_client *clp,
.rpc_client = clp->cl_rpcclient,
.rpc_message = &msg,
.callback_ops = &nfs4_reclaim_complete_call_ops,
- .flags = RPC_TASK_ASYNC,
+ .flags = RPC_TASK_ASYNC | RPC_TASK_NO_ROUND_ROBIN,
};
int status = -ENOMEM;
@@ -9330,7 +9334,7 @@ _nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
dprintk("--> %s\n", __func__);
status = nfs4_call_sync(clnt, server, &msg, &args.seq_args,
- &res.seq_res, 0);
+ &res.seq_res, RPC_TASK_NO_ROUND_ROBIN);
dprintk("<-- %s status=%d\n", __func__, status);
put_cred(cred);