NFS: Clean up the (commit|read|write)_setup() callback routines

Move the common code for setting up the nfs_write_data and nfs_read_data
structures into fs/nfs/read.c, fs/nfs/write.c and fs/nfs/direct.c.

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

1 files changed, 35 insertions, 16 deletions

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 8d90e90ccd47..9a69469274ae 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -764,6 +764,16 @@ static int flush_task_priority(int how)
         return RPC_PRIORITY_NORMAL;
 }
 
+static void nfs_execute_write(struct nfs_write_data *data)
+{
+        struct rpc_clnt *clnt = NFS_CLIENT(data->inode);
+        sigset_t oldset;
+
+        rpc_clnt_sigmask(clnt, &oldset);
+        rpc_execute(&data->task);
+        rpc_clnt_sigunmask(clnt, &oldset);
+}
+
 /*
  * Set up the argument/result storage required for the RPC call.
  */
@@ -776,8 +786,14 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
         struct inode *inode = req->wb_context->path.dentry->d_inode;
         int flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
         int priority = flush_task_priority(how);
+        struct rpc_message msg = {
+                .rpc_argp = &data->args,
+                .rpc_resp = &data->res,
+                .rpc_cred = req->wb_context->cred,
+        };
         struct rpc_task_setup task_setup_data = {
                 .rpc_client = NFS_CLIENT(inode),
+                .rpc_message = &msg,
                 .callback_ops = call_ops,
                 .callback_data = data,
                 .flags = flags,
@@ -789,7 +805,7 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
 
         data->req = req;
         data->inode = inode = req->wb_context->path.dentry->d_inode;
-        data->cred = req->wb_context->cred;
+        data->cred = msg.rpc_cred;
 
         data->args.fh     = NFS_FH(inode);
         data->args.offset = req_offset(req) + offset;
@@ -797,6 +813,12 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
         data->args.pages  = data->pagevec;
         data->args.count  = count;
         data->args.context = req->wb_context;
+        data->args.stable  = NFS_UNSTABLE;
+        if (how & FLUSH_STABLE) {
+                data->args.stable = NFS_DATA_SYNC;
+                if (!NFS_I(inode)->ncommit)
+                        data->args.stable = NFS_FILE_SYNC;
+        }
 
         data->res.fattr   = &data->fattr;
         data->res.count   = count;
@@ -804,8 +826,8 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
         nfs_fattr_init(&data->fattr);
 
         /* Set up the initial task struct.  */
+        NFS_PROTO(inode)->write_setup(data, &msg);
         rpc_init_task(&data->task, &task_setup_data);
-        NFS_PROTO(inode)->write_setup(data, how);
 
         dprintk("NFS: %5u initiated write call "
                 "(req %s/%Ld, %u bytes @ offset %Lu)\n",
@@ -814,16 +836,8 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
                 (long long)NFS_FILEID(inode),
                 count,
                 (unsigned long long)data->args.offset);
-}
 
-static void nfs_execute_write(struct nfs_write_data *data)
-{
-        struct rpc_clnt *clnt = NFS_CLIENT(data->inode);
-        sigset_t oldset;
-
-        rpc_clnt_sigmask(clnt, &oldset);
-        rpc_execute(&data->task);
-        rpc_clnt_sigunmask(clnt, &oldset);
+        nfs_execute_write(data);
 }
 
 /*
@@ -870,7 +884,6 @@ static int nfs_flush_multi(struct inode *inode, struct list_head *head, unsigned
                                    wsize, offset, how);
                 offset += wsize;
                 nbytes -= wsize;
-                nfs_execute_write(data);
         } while (nbytes != 0);
 
         return 0;
@@ -918,7 +931,6 @@ static int nfs_flush_one(struct inode *inode, struct list_head *head, unsigned i
         /* Set up the argument struct */
         nfs_write_rpcsetup(req, data, &nfs_write_full_ops, count, 0, how);
 
-        nfs_execute_write(data);
         return 0;
  out_bad:
         while (!list_empty(head)) {
@@ -1152,8 +1164,14 @@ static void nfs_commit_rpcsetup(struct list_head *head,
         struct inode *inode = first->wb_context->path.dentry->d_inode;
         int flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
         int priority = flush_task_priority(how);
+        struct rpc_message msg = {
+                .rpc_argp = &data->args,
+                .rpc_resp = &data->res,
+                .rpc_cred = first->wb_context->cred,
+        };
         struct rpc_task_setup task_setup_data = {
                 .rpc_client = NFS_CLIENT(inode),
+                .rpc_message = &msg,
                 .callback_ops = &nfs_commit_ops,
                 .callback_data = data,
                 .flags = flags,
@@ -1166,7 +1184,7 @@ static void nfs_commit_rpcsetup(struct list_head *head,
         list_splice_init(head, &data->pages);
 
         data->inode       = inode;
-        data->cred        = first->wb_context->cred;
+        data->cred        = msg.rpc_cred;
 
         data->args.fh     = NFS_FH(data->inode);
         /* Note: we always request a commit of the entire inode */
@@ -1178,10 +1196,12 @@ static void nfs_commit_rpcsetup(struct list_head *head,
         nfs_fattr_init(&data->fattr);
 
         /* Set up the initial task struct.  */
+        NFS_PROTO(inode)->commit_setup(data, &msg);
         rpc_init_task(&data->task, &task_setup_data);
-        NFS_PROTO(inode)->commit_setup(data, how);
 
         dprintk("NFS: %5u initiated commit call\n", data->task.tk_pid);
+
+        nfs_execute_write(data);
 }
 
 /*
@@ -1201,7 +1221,6 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how)
         /* Set up the argument struct */
         nfs_commit_rpcsetup(head, data, how);
 
-        nfs_execute_write(data);
         return 0;
  out_bad:
         while (!list_empty(head)) {