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yaml
---
r: 346612
b: refs/heads/master
c: c05eecf
h: refs/heads/master
v: v3
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Trond Myklebust authored and Trond Myklebust committed Dec 5, 2012
1 parent 055d92e commit dc97f8b
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Showing 3 changed files with 23 additions and 24 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: b75ad4cda5a6cd3431b1c65c2739c5ebd2c4b9da
refs/heads/master: c05eecf636101dd4347b2d8fa457626bf0088e0a
1 change: 0 additions & 1 deletion trunk/include/linux/sunrpc/sched.h
Original file line number Diff line number Diff line change
Expand Up @@ -192,7 +192,6 @@ struct rpc_wait_queue {
pid_t owner; /* process id of last task serviced */
unsigned char maxpriority; /* maximum priority (0 if queue is not a priority queue) */
unsigned char priority; /* current priority */
unsigned char count; /* # task groups remaining serviced so far */
unsigned char nr; /* # tasks remaining for cookie */
unsigned short qlen; /* total # tasks waiting in queue */
struct rpc_timer timer_list;
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44 changes: 22 additions & 22 deletions trunk/net/sunrpc/sched.c
Original file line number Diff line number Diff line change
Expand Up @@ -98,6 +98,23 @@ __rpc_add_timer(struct rpc_wait_queue *queue, struct rpc_task *task)
list_add(&task->u.tk_wait.timer_list, &queue->timer_list.list);
}

static void rpc_set_waitqueue_priority(struct rpc_wait_queue *queue, int priority)
{
queue->priority = priority;
}

static void rpc_set_waitqueue_owner(struct rpc_wait_queue *queue, pid_t pid)
{
queue->owner = pid;
queue->nr = RPC_BATCH_COUNT;
}

static void rpc_reset_waitqueue_priority(struct rpc_wait_queue *queue)
{
rpc_set_waitqueue_priority(queue, queue->maxpriority);
rpc_set_waitqueue_owner(queue, 0);
}

/*
* Add new request to a priority queue.
*/
Expand All @@ -109,9 +126,11 @@ static void __rpc_add_wait_queue_priority(struct rpc_wait_queue *queue,
struct rpc_task *t;

INIT_LIST_HEAD(&task->u.tk_wait.links);
q = &queue->tasks[queue_priority];
if (unlikely(queue_priority > queue->maxpriority))
q = &queue->tasks[queue->maxpriority];
queue_priority = queue->maxpriority;
if (queue_priority > queue->priority)
rpc_set_waitqueue_priority(queue, queue_priority);
q = &queue->tasks[queue_priority];
list_for_each_entry(t, q, u.tk_wait.list) {
if (t->tk_owner == task->tk_owner) {
list_add_tail(&task->u.tk_wait.list, &t->u.tk_wait.links);
Expand Down Expand Up @@ -180,24 +199,6 @@ static void __rpc_remove_wait_queue(struct rpc_wait_queue *queue, struct rpc_tas
task->tk_pid, queue, rpc_qname(queue));
}

static inline void rpc_set_waitqueue_priority(struct rpc_wait_queue *queue, int priority)
{
queue->priority = priority;
queue->count = 1 << (priority * 2);
}

static inline void rpc_set_waitqueue_owner(struct rpc_wait_queue *queue, pid_t pid)
{
queue->owner = pid;
queue->nr = RPC_BATCH_COUNT;
}

static inline void rpc_reset_waitqueue_priority(struct rpc_wait_queue *queue)
{
rpc_set_waitqueue_priority(queue, queue->maxpriority);
rpc_set_waitqueue_owner(queue, 0);
}

static void __rpc_init_priority_wait_queue(struct rpc_wait_queue *queue, const char *qname, unsigned char nr_queues)
{
int i;
Expand Down Expand Up @@ -464,8 +465,7 @@ static struct rpc_task *__rpc_find_next_queued_priority(struct rpc_wait_queue *q
/*
* Check if we need to switch queues.
*/
if (--queue->count)
goto new_owner;
goto new_owner;
}

/*
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