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/read.c b/fs/nfs/read.c
index 5f20eaf..2148624 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -42,9 +42,8 @@
#define MIN_POOL_READ (32)
-void nfs_readdata_release(struct rpc_task *task)
+void nfs_readdata_release(void *data)
{
- struct nfs_read_data *data = (struct nfs_read_data *)task->tk_calldata;
nfs_readdata_free(data);
}
@@ -220,9 +219,6 @@
NFS_PROTO(inode)->read_setup(data);
data->task.tk_cookie = (unsigned long)inode;
- data->task.tk_calldata = data;
- /* Release requests */
- data->task.tk_release = nfs_readdata_release;
dprintk("NFS: %4d initiated read call (req %s/%Ld, %u bytes @ offset %Lu)\n",
data->task.tk_pid,
@@ -452,9 +448,9 @@
* This is the callback from RPC telling us whether a reply was
* received or some error occurred (timeout or socket shutdown).
*/
-void nfs_readpage_result(struct rpc_task *task)
+void nfs_readpage_result(struct rpc_task *task, void *calldata)
{
- struct nfs_read_data *data = (struct nfs_read_data *)task->tk_calldata;
+ struct nfs_read_data *data = calldata;
struct nfs_readargs *argp = &data->args;
struct nfs_readres *resp = &data->res;
int status = task->tk_status;