mirror of https://gitee.com/openkylin/linux.git
NFSv4: OPEN/LOCK/LOCKU/CLOSE will automatically renew the NFSv4 lease
Cut down on the number of unnecessary RENEW requests on the wire. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
parent
2bd615797e
commit
26e976a884
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@ -174,8 +174,7 @@ static void nfs4_setup_readdir(u64 cookie, u32 *verifier, struct dentry *dentry,
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kunmap_atomic(start, KM_USER0);
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}
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static void
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renew_lease(struct nfs_server *server, unsigned long timestamp)
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static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
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{
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struct nfs4_client *clp = server->nfs4_state;
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spin_lock(&clp->cl_lock);
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@ -207,6 +206,7 @@ struct nfs4_opendata {
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struct dentry *dir;
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struct nfs4_state_owner *owner;
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struct iattr attrs;
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unsigned long timestamp;
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int rpc_status;
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int cancelled;
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};
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@ -548,6 +548,7 @@ static void nfs4_open_confirm_prepare(struct rpc_task *task, void *calldata)
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.rpc_resp = &data->c_res,
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.rpc_cred = data->owner->so_cred,
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};
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data->timestamp = jiffies;
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rpc_call_setup(task, &msg, 0);
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}
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@ -558,9 +559,11 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
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data->rpc_status = task->tk_status;
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if (RPC_ASSASSINATED(task))
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return;
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if (data->rpc_status == 0)
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if (data->rpc_status == 0) {
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memcpy(data->o_res.stateid.data, data->c_res.stateid.data,
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sizeof(data->o_res.stateid.data));
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renew_lease(data->o_res.server, data->timestamp);
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}
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nfs_increment_open_seqid(data->rpc_status, data->c_arg.seqid);
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nfs_confirm_seqid(&data->owner->so_seqid, data->rpc_status);
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}
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@ -633,6 +636,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
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data->o_arg.clientid = sp->so_client->cl_clientid;
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if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS)
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msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
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data->timestamp = jiffies;
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rpc_call_setup(task, &msg, 0);
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}
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@ -656,6 +660,7 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata)
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default:
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data->rpc_status = -ENOTDIR;
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}
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renew_lease(data->o_res.server, data->timestamp);
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}
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nfs_increment_open_seqid(data->rpc_status, data->o_arg.seqid);
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}
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@ -1014,6 +1019,7 @@ static int _nfs4_do_setattr(struct nfs_server *server, struct nfs_fattr *fattr,
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.rpc_argp = &arg,
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.rpc_resp = &res,
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};
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unsigned long timestamp = jiffies;
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int status;
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nfs_fattr_init(fattr);
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@ -1025,6 +1031,8 @@ static int _nfs4_do_setattr(struct nfs_server *server, struct nfs_fattr *fattr,
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memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
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status = rpc_call_sync(server->client, &msg, 0);
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if (status == 0 && state != NULL)
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renew_lease(server, timestamp);
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return status;
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}
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@ -1049,6 +1057,7 @@ struct nfs4_closedata {
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struct nfs_closeargs arg;
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struct nfs_closeres res;
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struct nfs_fattr fattr;
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unsigned long timestamp;
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};
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static void nfs4_free_closedata(void *data)
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@ -1078,6 +1087,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
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case 0:
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memcpy(&state->stateid, &calldata->res.stateid,
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sizeof(state->stateid));
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renew_lease(server, calldata->timestamp);
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break;
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case -NFS4ERR_STALE_STATEID:
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case -NFS4ERR_EXPIRED:
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@ -1130,6 +1140,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
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if (mode != 0)
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msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
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calldata->arg.open_flags = mode;
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calldata->timestamp = jiffies;
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rpc_call_setup(task, &msg, 0);
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}
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@ -1694,11 +1705,13 @@ static int _nfs4_proc_write(struct nfs_write_data *wdata)
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wdata->args.bitmask = server->attr_bitmask;
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wdata->res.server = server;
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wdata->timestamp = jiffies;
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nfs_fattr_init(fattr);
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status = rpc_call_sync(server->client, &msg, rpcflags);
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dprintk("NFS reply write: %d\n", status);
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if (status < 0)
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return status;
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renew_lease(server, wdata->timestamp);
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nfs_post_op_update_inode(inode, fattr);
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return wdata->res.count;
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}
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@ -1733,8 +1746,11 @@ static int _nfs4_proc_commit(struct nfs_write_data *cdata)
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cdata->args.bitmask = server->attr_bitmask;
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cdata->res.server = server;
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cdata->timestamp = jiffies;
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nfs_fattr_init(fattr);
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status = rpc_call_sync(server->client, &msg, 0);
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if (status >= 0)
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renew_lease(server, cdata->timestamp);
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dprintk("NFS reply commit: %d\n", status);
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if (status >= 0)
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nfs_post_op_update_inode(inode, fattr);
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@ -2890,6 +2906,8 @@ struct nfs4_delegreturndata {
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struct nfs_fh fh;
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nfs4_stateid stateid;
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struct rpc_cred *cred;
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unsigned long timestamp;
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const struct nfs_server *server;
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int rpc_status;
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};
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@ -2908,6 +2926,8 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
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{
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struct nfs4_delegreturndata *data = calldata;
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data->rpc_status = task->tk_status;
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if (data->rpc_status == 0)
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renew_lease(data->server, data->timestamp);
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}
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static void nfs4_delegreturn_release(void *calldata)
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@ -2938,6 +2958,8 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
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nfs_copy_fh(&data->fh, NFS_FH(inode));
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memcpy(&data->stateid, stateid, sizeof(data->stateid));
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data->cred = get_rpccred(cred);
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data->timestamp = jiffies;
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data->server = NFS_SERVER(inode);
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data->rpc_status = 0;
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task = rpc_run_task(NFS_CLIENT(inode), RPC_TASK_ASYNC, &nfs4_delegreturn_ops, data);
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@ -3067,6 +3089,7 @@ struct nfs4_unlockdata {
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struct nfs_open_context *ctx;
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struct file_lock fl;
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const struct nfs_server *server;
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unsigned long timestamp;
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};
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static struct nfs4_unlockdata *nfs4_alloc_unlockdata(struct file_lock *fl,
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@ -3114,6 +3137,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
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memcpy(calldata->lsp->ls_stateid.data,
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calldata->res.stateid.data,
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sizeof(calldata->lsp->ls_stateid.data));
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renew_lease(calldata->server, calldata->timestamp);
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break;
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case -NFS4ERR_STALE_STATEID:
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case -NFS4ERR_EXPIRED:
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@ -3143,6 +3167,7 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
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task->tk_action = NULL;
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return;
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}
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calldata->timestamp = jiffies;
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rpc_call_setup(task, &msg, 0);
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}
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@ -3214,6 +3239,7 @@ struct nfs4_lockdata {
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struct nfs4_lock_state *lsp;
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struct nfs_open_context *ctx;
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struct file_lock fl;
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unsigned long timestamp;
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int rpc_status;
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int cancelled;
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};
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@ -3273,6 +3299,7 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
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data->arg.open_stateid = &state->stateid;
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data->arg.new_lock_owner = 1;
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}
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data->timestamp = jiffies;
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rpc_call_setup(task, &msg, 0);
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out:
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dprintk("%s: done!, ret = %d\n", __FUNCTION__, data->rpc_status);
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@ -3298,6 +3325,7 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata)
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memcpy(data->lsp->ls_stateid.data, data->res.stateid.data,
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sizeof(data->lsp->ls_stateid.data));
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data->lsp->ls_flags |= NFS_LOCK_INITIALIZED;
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renew_lease(NFS_SERVER(data->ctx->dentry->d_inode), data->timestamp);
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}
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nfs_increment_lock_seqid(data->rpc_status, data->arg.lock_seqid);
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out:
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