/*
* 2. Allocate the buffer. For details, see sched.c:rpc_malloc.
* (Note: buffer memory is freed in rpc_task_release).
*/
static void
call_allocate(struct rpc_task *task)
{
struct rpc_clnt *clnt = task->tk_client;
unsigned int bufsiz;
dprintk("RPC: %4d call_allocate (status %d)\n",
task->tk_pid, task->tk_status);
task->tk_action = call_encode;
if (task->tk_buffer)
return;
/* FIXME: compute buffer requirements more exactly using
* auth->au_wslack */
bufsiz = rpcproc_bufsiz(clnt, task->tk_msg.rpc_proc) + RPC_SLACK_SPACE;
if ((task->tk_buffer = rpc_malloc(task, bufsiz << 1)) != NULL)
return;
printk(KERN_INFO "RPC: buffer allocation failed for task %p\n", task);
if (RPC_IS_ASYNC(task) || !(task->tk_client->cl_intr && signalled())) {
xprt_release(task);
task->tk_action = call_reserve;
rpc_delay(task, HZ>>4);
return;
}
/*
* 2. Allocate the buffer. For details, see sched.c:rpc_malloc.
* (Note: buffer memory is freed in rpc_task_release).
*/
static void
call_allocate(struct rpc_task *task)
{
struct rpc_clnt *clnt = task->tk_client;
unsigned int bufsiz;
dprintk("RPC: %4d call_allocate (status %d)\n",
task->tk_pid, task->tk_status);
task->tk_action = call_encode;
if (task->tk_buffer)
return;
/* FIXME: compute buffer requirements more exactly using
* auth->au_wslack */
bufsiz = rpcproc_bufsiz(clnt, task->tk_proc) + RPC_SLACK_SPACE;
if ((task->tk_buffer = rpc_malloc(task, bufsiz)) != NULL)
return;
printk("RPC: buffer allocation failed for task %p\n", task);
if (!signalled()) {
xprt_release(task);
task->tk_action = call_reserve;
rpc_delay(task, HZ);
return;
}
rpc_exit(task, -ERESTARTSYS);
}
/*
* 8. Refresh the credentials if rejected by the server
*/
static void
call_refresh(struct rpc_task *task)
{
dprintk("RPC: %4d call_refresh\n", task->tk_pid);
xprt_release(task); /* Must do to obtain new XID */
task->tk_action = call_refreshresult;
task->tk_status = 0;
task->tk_client->cl_stats->rpcauthrefresh++;
rpcauth_refreshcred(task);
}
void
rpc_release_task(struct rpc_task *task)
{
struct rpc_task *next, *prev;
dprintk("RPC: %4d release task\n", task->tk_pid);
/* Remove from global task list */
prev = task->tk_prev_task;
next = task->tk_next_task;
if (next)
next->tk_prev_task = prev;
if (prev)
prev->tk_next_task = next;
else
all_tasks = next;
/* Release resources */
if (task->tk_rqstp)
xprt_release(task);
if (task->tk_cred)
rpcauth_releasecred(task);
if (task->tk_buffer) {
rpc_free(task->tk_buffer);
task->tk_buffer = NULL;
}
if (task->tk_client) {
rpc_release_client(task->tk_client);
task->tk_client = NULL;
}
#ifdef RPC_DEBUG
task->tk_magic = 0;
#endif
if (task->tk_flags & RPC_TASK_DYNAMIC) {
dprintk("RPC: %4d freeing task\n", task->tk_pid);
task->tk_flags &= ~RPC_TASK_DYNAMIC;
rpc_free(task);
}
}
