RPC: Clean up RPC task structure
Shrink the RPC task structure. Instead of storing separate pointers
for task->tk_exit and task->tk_release, put them in a structure.
Also pass the user data pointer as a parameter instead of passing it via
task->tk_calldata. This enables us to nest callbacks.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 95d00f9..80bc4ea 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -104,9 +104,8 @@
mempool_free(p, nfs_commit_mempool);
}
-static void nfs_writedata_release(struct rpc_task *task)
+void nfs_writedata_release(void *wdata)
{
- struct nfs_write_data *wdata = (struct nfs_write_data *)task->tk_calldata;
nfs_writedata_free(wdata);
}
@@ -871,9 +870,6 @@
data->task.tk_priority = flush_task_priority(how);
data->task.tk_cookie = (unsigned long)inode;
- data->task.tk_calldata = data;
- /* Release requests */
- data->task.tk_release = nfs_writedata_release;
dprintk("NFS: %4d initiated write call (req %s/%Ld, %u bytes @ offset %Lu)\n",
data->task.tk_pid,
@@ -1131,9 +1127,9 @@
/*
* This function is called when the WRITE call is complete.
*/
-void nfs_writeback_done(struct rpc_task *task)
+void nfs_writeback_done(struct rpc_task *task, void *calldata)
{
- struct nfs_write_data *data = (struct nfs_write_data *) task->tk_calldata;
+ struct nfs_write_data *data = calldata;
struct nfs_writeargs *argp = &data->args;
struct nfs_writeres *resp = &data->res;
@@ -1200,9 +1196,8 @@
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
-static void nfs_commit_release(struct rpc_task *task)
+void nfs_commit_release(void *wdata)
{
- struct nfs_write_data *wdata = (struct nfs_write_data *)task->tk_calldata;
nfs_commit_free(wdata);
}
@@ -1238,9 +1233,6 @@
data->task.tk_priority = flush_task_priority(how);
data->task.tk_cookie = (unsigned long)inode;
- data->task.tk_calldata = data;
- /* Release requests */
- data->task.tk_release = nfs_commit_release;
dprintk("NFS: %4d initiated commit call\n", data->task.tk_pid);
}
@@ -1277,10 +1269,9 @@
/*
* COMMIT call returned
*/
-void
-nfs_commit_done(struct rpc_task *task)
+void nfs_commit_done(struct rpc_task *task, void *calldata)
{
- struct nfs_write_data *data = (struct nfs_write_data *)task->tk_calldata;
+ struct nfs_write_data *data = calldata;
struct nfs_page *req;
int res = 0;