NFS/SUNRPC: Convert all users of rpc_call_setup()

Replace use of rpc_call_setup() with rpc_init_task(), and in cases where we
need to initialise task->tk_action, with rpc_call_start().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

3 files changed, 79 insertions, 107 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 7c0baf23abdc..826b445b8c70 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -718,19 +718,6 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx, struct nfs4_state
         return err;
 }
 
-static void nfs4_open_confirm_prepare(struct rpc_task *task, void *calldata)
-{
-        struct nfs4_opendata *data = calldata;
-        struct  rpc_message msg = {
-                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_CONFIRM],
-                .rpc_argp = &data->c_arg,
-                .rpc_resp = &data->c_res,
-                .rpc_cred = data->owner->so_cred,
-        };
-        data->timestamp = jiffies;
-        rpc_call_setup(task, &msg, 0);
-}
-
 static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
 {
         struct nfs4_opendata *data = calldata;
@@ -767,7 +754,6 @@ out_free:
 }
 
 static const struct rpc_call_ops nfs4_open_confirm_ops = {
-        .rpc_call_prepare = nfs4_open_confirm_prepare,
         .rpc_call_done = nfs4_open_confirm_done,
         .rpc_release = nfs4_open_confirm_release,
 };
@@ -779,8 +765,15 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data)
 {
         struct nfs_server *server = NFS_SERVER(data->dir->d_inode);
         struct rpc_task *task;
+        struct  rpc_message msg = {
+                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_CONFIRM],
+                .rpc_argp = &data->c_arg,
+                .rpc_resp = &data->c_res,
+                .rpc_cred = data->owner->so_cred,
+        };
         struct rpc_task_setup task_setup_data = {
                 .rpc_client = server->client,
+                .rpc_message = &msg,
                 .callback_ops = &nfs4_open_confirm_ops,
                 .callback_data = data,
                 .flags = RPC_TASK_ASYNC,
@@ -790,6 +783,7 @@ static int _nfs4_proc_open_confirm(struct nfs4_opendata *data)
         kref_get(&data->kref);
         data->rpc_done = 0;
         data->rpc_status = 0;
+        data->timestamp = jiffies;
         task = rpc_run_task(&task_setup_data);
         if (IS_ERR(task))
                 return PTR_ERR(task);
@@ -807,13 +801,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
 {
         struct nfs4_opendata *data = calldata;
         struct nfs4_state_owner *sp = data->owner;
-        struct rpc_message msg = {
-                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN],
-                .rpc_argp = &data->o_arg,
-                .rpc_resp = &data->o_res,
-                .rpc_cred = sp->so_cred,
-        };
-        
+
         if (nfs_wait_on_sequence(data->o_arg.seqid, task) != 0)
                 return;
         /*
@@ -838,11 +826,11 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
         data->o_arg.id = sp->so_owner_id.id;
         data->o_arg.clientid = sp->so_client->cl_clientid;
         if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
-                msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
+                task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
                 nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
         }
         data->timestamp = jiffies;
-        rpc_call_setup(task, &msg, 0);
+        rpc_call_start(task);
         return;
 out_no_action:
         task->tk_action = NULL;
@@ -914,8 +902,15 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
         struct nfs_openargs *o_arg = &data->o_arg;
         struct nfs_openres *o_res = &data->o_res;
         struct rpc_task *task;
+        struct rpc_message msg = {
+                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN],
+                .rpc_argp = o_arg,
+                .rpc_resp = o_res,
+                .rpc_cred = data->owner->so_cred,
+        };
         struct rpc_task_setup task_setup_data = {
                 .rpc_client = server->client,
+                .rpc_message = &msg,
                 .callback_ops = &nfs4_open_ops,
                 .callback_data = data,
                 .flags = RPC_TASK_ASYNC,
@@ -1256,12 +1251,6 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
 {
         struct nfs4_closedata *calldata = data;
         struct nfs4_state *state = calldata->state;
-        struct rpc_message msg = {
-                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE],
-                .rpc_argp = &calldata->arg,
-                .rpc_resp = &calldata->res,
-                .rpc_cred = state->owner->so_cred,
-        };
         int clear_rd, clear_wr, clear_rdwr;
 
         if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
@@ -1288,14 +1277,14 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
         }
         nfs_fattr_init(calldata->res.fattr);
         if (test_bit(NFS_O_RDONLY_STATE, &state->flags) != 0) {
-                msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
+                task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
                 calldata->arg.open_flags = FMODE_READ;
         } else if (test_bit(NFS_O_WRONLY_STATE, &state->flags) != 0) {
-                msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
+                task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
                 calldata->arg.open_flags = FMODE_WRITE;
         }
         calldata->timestamp = jiffies;
-        rpc_call_setup(task, &msg, 0);
+        rpc_call_start(task);
 }
 
 static const struct rpc_call_ops nfs4_close_ops = {
@@ -1321,8 +1310,13 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
         struct nfs4_closedata *calldata;
         struct nfs4_state_owner *sp = state->owner;
         struct rpc_task *task;
+        struct rpc_message msg = {
+                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE],
+                .rpc_cred = state->owner->so_cred,
+        };
         struct rpc_task_setup task_setup_data = {
                 .rpc_client = server->client,
+                .rpc_message = &msg,
                 .callback_ops = &nfs4_close_ops,
                 .flags = RPC_TASK_ASYNC,
         };
@@ -1345,6 +1339,8 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
         calldata->path.mnt = mntget(path->mnt);
         calldata->path.dentry = dget(path->dentry);
 
+        msg.rpc_argp = &calldata->arg,
+        msg.rpc_resp = &calldata->res,
         task_setup_data.callback_data = calldata;
         task = rpc_run_task(&task_setup_data);
         if (IS_ERR(task))
@@ -2966,25 +2962,11 @@ struct nfs4_delegreturndata {
         struct nfs4_delegreturnres res;
         struct nfs_fh fh;
         nfs4_stateid stateid;
-        struct rpc_cred *cred;
         unsigned long timestamp;
         struct nfs_fattr fattr;
         int rpc_status;
 };
 
-static void nfs4_delegreturn_prepare(struct rpc_task *task, void *calldata)
-{
-        struct nfs4_delegreturndata *data = calldata;
-        struct rpc_message msg = {
-                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DELEGRETURN],
-                .rpc_argp = &data->args,
-                .rpc_resp = &data->res,
-                .rpc_cred = data->cred,
-        };
-        nfs_fattr_init(data->res.fattr);
-        rpc_call_setup(task, &msg, 0);
-}
-
 static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
 {
         struct nfs4_delegreturndata *data = calldata;
@@ -2995,14 +2977,10 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
 
 static void nfs4_delegreturn_release(void *calldata)
 {
-        struct nfs4_delegreturndata *data = calldata;
-
-        put_rpccred(data->cred);
         kfree(calldata);
 }
 
 static const struct rpc_call_ops nfs4_delegreturn_ops = {
-        .rpc_call_prepare = nfs4_delegreturn_prepare,
         .rpc_call_done = nfs4_delegreturn_done,
         .rpc_release = nfs4_delegreturn_release,
 };
@@ -3012,8 +2990,13 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
         struct nfs4_delegreturndata *data;
         struct nfs_server *server = NFS_SERVER(inode);
         struct rpc_task *task;
+        struct rpc_message msg = {
+                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DELEGRETURN],
+                .rpc_cred = cred,
+        };
         struct rpc_task_setup task_setup_data = {
                 .rpc_client = server->client,
+                .rpc_message = &msg,
                 .callback_ops = &nfs4_delegreturn_ops,
                 .flags = RPC_TASK_ASYNC,
         };
@@ -3029,11 +3012,13 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co
         memcpy(&data->stateid, stateid, sizeof(data->stateid));
         data->res.fattr = &data->fattr;
         data->res.server = server;
-        data->cred = get_rpccred(cred);
+        nfs_fattr_init(data->res.fattr);
         data->timestamp = jiffies;
         data->rpc_status = 0;
 
         task_setup_data.callback_data = data;
+        msg.rpc_argp = &data->args,
+        msg.rpc_resp = &data->res,
         task = rpc_run_task(&task_setup_data);
         if (IS_ERR(task))
                 return PTR_ERR(task);
@@ -3221,12 +3206,6 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
 static void nfs4_locku_prepare(struct rpc_task *task, void *data)
 {
         struct nfs4_unlockdata *calldata = data;
-        struct rpc_message msg = {
-                .rpc_proc       = &nfs4_procedures[NFSPROC4_CLNT_LOCKU],
-                .rpc_argp       = &calldata->arg,
-                .rpc_resp       = &calldata->res,
-                .rpc_cred       = calldata->lsp->ls_state->owner->so_cred,
-        };
 
         if (nfs_wait_on_sequence(calldata->arg.seqid, task) != 0)
                 return;
@@ -3236,7 +3215,7 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
                 return;
         }
         calldata->timestamp = jiffies;
-        rpc_call_setup(task, &msg, 0);
+        rpc_call_start(task);
 }
 
 static const struct rpc_call_ops nfs4_locku_ops = {
@@ -3251,8 +3230,13 @@ static struct rpc_task *nfs4_do_unlck(struct file_lock *fl,
                 struct nfs_seqid *seqid)
 {
         struct nfs4_unlockdata *data;
+        struct rpc_message msg = {
+                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOCKU],
+                .rpc_cred = ctx->cred,
+        };
         struct rpc_task_setup task_setup_data = {
                 .rpc_client = NFS_CLIENT(lsp->ls_state->inode),
+                .rpc_message = &msg,
                 .callback_ops = &nfs4_locku_ops,
                 .flags = RPC_TASK_ASYNC,
         };
@@ -3268,6 +3252,8 @@ static struct rpc_task *nfs4_do_unlck(struct file_lock *fl,
                 return ERR_PTR(-ENOMEM);
         }
 
+        msg.rpc_argp = &data->arg,
+        msg.rpc_resp = &data->res,
         task_setup_data.callback_data = data;
         return rpc_run_task(&task_setup_data);
 }
@@ -3353,13 +3339,6 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
 {
         struct nfs4_lockdata *data = calldata;
         struct nfs4_state *state = data->lsp->ls_state;
-        struct nfs4_state_owner *sp = state->owner;
-        struct rpc_message msg = {
-                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOCK],
-                .rpc_argp = &data->arg,
-                .rpc_resp = &data->res,
-                .rpc_cred = sp->so_cred,
-        };
 
         dprintk("%s: begin!\n", __FUNCTION__);
         if (nfs_wait_on_sequence(data->arg.lock_seqid, task) != 0)
@@ -3373,7 +3352,7 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
         } else
                 data->arg.new_lock_owner = 0;
         data->timestamp = jiffies;
-        rpc_call_setup(task, &msg, 0);
+        rpc_call_start(task);
         dprintk("%s: done!, ret = %d\n", __FUNCTION__, data->rpc_status);
 }
 
@@ -3435,8 +3414,13 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f
 {
         struct nfs4_lockdata *data;
         struct rpc_task *task;
+        struct rpc_message msg = {
+                .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LOCK],
+                .rpc_cred = state->owner->so_cred,
+        };
         struct rpc_task_setup task_setup_data = {
                 .rpc_client = NFS_CLIENT(state->inode),
+                .rpc_message = &msg,
                 .callback_ops = &nfs4_lock_ops,
                 .flags = RPC_TASK_ASYNC,
         };
@@ -3451,6 +3435,8 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f
                 data->arg.block = 1;
         if (reclaim != 0)
                 data->arg.reclaim = 1;
+        msg.rpc_argp = &data->arg,
+        msg.rpc_resp = &data->res,
         task_setup_data.callback_data = data;
         task = rpc_run_task(&task_setup_data);
         if (IS_ERR(task))
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index 6660d9a53345..757415363422 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -71,24 +71,6 @@ static void nfs_dec_sillycount(struct inode *dir)
 }
 
 /**
- * nfs_async_unlink_init - Initialize the RPC info
- * task: rpc_task of the sillydelete
- */
-static void nfs_async_unlink_init(struct rpc_task *task, void *calldata)
-{
-        struct nfs_unlinkdata *data = calldata;
-        struct inode *dir = data->dir;
-        struct rpc_message msg = {
-                .rpc_argp = &data->args,
-                .rpc_resp = &data->res,
-                .rpc_cred = data->cred,
-        };
-
-        NFS_PROTO(dir)->unlink_setup(&msg, dir);
-        rpc_call_setup(task, &msg, 0);
-}
-
-/**
  * nfs_async_unlink_done - Sillydelete post-processing
  * @task: rpc_task of the sillydelete
  *
@@ -120,14 +102,19 @@ static void nfs_async_unlink_release(void *calldata)
 }
 
 static const struct rpc_call_ops nfs_unlink_ops = {
-        .rpc_call_prepare = nfs_async_unlink_init,
         .rpc_call_done = nfs_async_unlink_done,
         .rpc_release = nfs_async_unlink_release,
 };
 
 static int nfs_do_call_unlink(struct dentry *parent, struct inode *dir, struct nfs_unlinkdata *data)
 {
+        struct rpc_message msg = {
+                .rpc_argp = &data->args,
+                .rpc_resp = &data->res,
+                .rpc_cred = data->cred,
+        };
         struct rpc_task_setup task_setup_data = {
+                .rpc_message = &msg,
                 .callback_ops = &nfs_unlink_ops,
                 .callback_data = data,
                 .flags = RPC_TASK_ASYNC,
@@ -165,8 +152,9 @@ static int nfs_do_call_unlink(struct dentry *parent, struct inode *dir, struct n
         data->args.fh = NFS_FH(dir);
         nfs_fattr_init(&data->res.dir_attr);
 
-        task_setup_data.rpc_client = NFS_CLIENT(dir);
+        NFS_PROTO(dir)->unlink_setup(&msg, dir);
 
+        task_setup_data.rpc_client = NFS_CLIENT(dir);
         task = rpc_run_task(&task_setup_data);
         if (!IS_ERR(task))
                 rpc_put_task(task);
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 7c362e5f6e1b..f876e37d1972 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -128,19 +128,6 @@ struct rpcb_info {
 static struct rpcb_info rpcb_next_version[];
 static struct rpcb_info rpcb_next_version6[];
 
-static void rpcb_getport_prepare(struct rpc_task *task, void *calldata)
-{
-        struct rpcbind_args *map = calldata;
-        struct rpc_xprt *xprt = map->r_xprt;
-        struct rpc_message msg = {
-                .rpc_proc       = rpcb_next_version[xprt->bind_index].rpc_proc,
-                .rpc_argp       = map,
-                .rpc_resp       = &map->r_port,
-        };
-
-        rpc_call_setup(task, &msg, 0);
-}
-
 static void rpcb_map_release(void *data)
 {
         struct rpcbind_args *map = data;
@@ -150,7 +137,6 @@ static void rpcb_map_release(void *data)
 }
 
 static const struct rpc_call_ops rpcb_getport_ops = {
-        .rpc_call_prepare       = rpcb_getport_prepare,
         .rpc_call_done          = rpcb_getport_done,
         .rpc_release            = rpcb_map_release,
 };
@@ -295,6 +281,24 @@ int rpcb_getport_sync(struct sockaddr_in *sin, __u32 prog,
 }
 EXPORT_SYMBOL_GPL(rpcb_getport_sync);
 
+static struct rpc_task *rpcb_call_async(struct rpc_clnt *rpcb_clnt, struct rpcbind_args *map, int version)
+{
+        struct rpc_message msg = {
+                .rpc_proc = rpcb_next_version[version].rpc_proc,
+                .rpc_argp = map,
+                .rpc_resp = &map->r_port,
+        };
+        struct rpc_task_setup task_setup_data = {
+                .rpc_client = rpcb_clnt,
+                .rpc_message = &msg,
+                .callback_ops = &rpcb_getport_ops,
+                .callback_data = map,
+                .flags = RPC_TASK_ASYNC,
+        };
+
+        return rpc_run_task(&task_setup_data);
+}
+
 /**
  * rpcb_getport_async - obtain the port for a given RPC service on a given host
  * @task: task that is waiting for portmapper request
@@ -310,10 +314,6 @@ void rpcb_getport_async(struct rpc_task *task)
         struct rpc_clnt *rpcb_clnt;
         static struct rpcbind_args *map;
         struct rpc_task *child;
-        struct rpc_task_setup task_setup_data = {
-                .callback_ops = &rpcb_getport_ops,
-                .flags = RPC_TASK_ASYNC,
-        };
         struct sockaddr addr;
         int status;
         struct rpcb_info *info;
@@ -399,9 +399,7 @@ void rpcb_getport_async(struct rpc_task *task)
                sizeof(map->r_addr));
         map->r_owner = RPCB_OWNER_STRING;       /* ignored for GETADDR */
 
-        task_setup_data.rpc_client = rpcb_clnt;
-        task_setup_data.callback_data = map;
-        child = rpc_run_task(&task_setup_data);
+        child = rpcb_call_async(rpcb_clnt, map, xprt->bind_index);
         rpc_release_client(rpcb_clnt);
         if (IS_ERR(child)) {
                 status = -EIO;