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SUNRPC: Make create_client() take a reference to the rpciod workqueue

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Ensures that an rpc_client always has the possibility to send asynchronous
RPC calls.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2007-06-14 17:26:17 -04:00
parent ab418d70e1
commit 4ada539ed7
2 changed files with 7 additions and 31 deletions
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31
net/sunrpc/sched.c
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@@ -39,7 +39,6 @@ static mempool_t *rpc_task_mempool __read_mostly;
static mempool_t *rpc_buffer_mempool __read_mostly;
static void __rpc_default_timer(struct rpc_task *task);
static void rpciod_killall(void);
static void rpc_async_schedule(struct work_struct *);
static void rpc_release_task(struct rpc_task *task);
@@ -52,7 +51,6 @@ static RPC_WAITQ(delay_queue, "delayq");
* All RPC clients are linked into this list
*/
static LIST_HEAD(all_clients);
static DECLARE_WAIT_QUEUE_HEAD(client_kill_wait);
/*
* rpciod-related stuff
@@ -996,32 +994,6 @@ void rpc_killall_tasks(struct rpc_clnt *clnt)
spin_unlock(&clnt->cl_lock);
}
static void rpciod_killall(void)
{
struct rpc_clnt *clnt;
unsigned long flags;
for(;;) {
clear_thread_flag(TIF_SIGPENDING);
spin_lock(&rpc_sched_lock);
list_for_each_entry(clnt, &all_clients, cl_clients)
rpc_killall_tasks(clnt);
spin_unlock(&rpc_sched_lock);
flush_workqueue(rpciod_workqueue);
if (!list_empty(&all_clients))
break;
dprintk("RPC: rpciod_killall: waiting for tasks "
"to exit\n");
wait_event_timeout(client_kill_wait,
list_empty(&all_clients), 1*HZ);
}
spin_lock_irqsave(&current->sighand->siglock, flags);
recalc_sigpending();
spin_unlock_irqrestore(&current->sighand->siglock, flags);
}
void rpc_register_client(struct rpc_clnt *clnt)
{
spin_lock(&rpc_sched_lock);
@@ -1033,8 +1005,6 @@ void rpc_unregister_client(struct rpc_clnt *clnt)
{
spin_lock(&rpc_sched_lock);
list_del(&clnt->cl_clients);
if (list_empty(&all_clients))
wake_up(&client_kill_wait);
spin_unlock(&rpc_sched_lock);
}
@@ -1083,7 +1053,6 @@ rpciod_down(void)
dprintk("RPC: destroying workqueue rpciod\n");
if (atomic_read(&rpciod_users) == 0 && rpciod_workqueue != NULL) {
rpciod_killall();
destroy_workqueue(rpciod_workqueue);
rpciod_workqueue = NULL;
}