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Diffstat (limited to 'module/spl/spl-taskq.c')
-rw-r--r--module/spl/spl-taskq.c123
1 files changed, 62 insertions, 61 deletions
diff --git a/module/spl/spl-taskq.c b/module/spl/spl-taskq.c
index 588dbc8a4..ded6d3b80 100644
--- a/module/spl/spl-taskq.c
+++ b/module/spl/spl-taskq.c
@@ -71,7 +71,7 @@ task_km_flags(uint_t flags)
* is not attached to the free, work, or pending taskq lists.
*/
static taskq_ent_t *
-task_alloc(taskq_t *tq, uint_t flags)
+task_alloc(taskq_t *tq, uint_t flags, unsigned long *irqflags)
{
taskq_ent_t *t;
int count = 0;
@@ -111,9 +111,9 @@ retry:
* end up delaying the task allocation by one second, thereby
* throttling the task dispatch rate.
*/
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, *irqflags);
schedule_timeout(HZ / 100);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
+ spin_lock_irqsave_nested(&tq->tq_lock, *irqflags,
tq->tq_lock_class);
if (count < 100) {
count++;
@@ -121,10 +121,9 @@ retry:
}
}
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, *irqflags);
t = kmem_alloc(sizeof(taskq_ent_t), task_km_flags(flags));
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, *irqflags, tq->tq_lock_class);
if (t) {
taskq_init_ent(t);
@@ -189,13 +188,13 @@ task_expire(unsigned long data)
taskq_ent_t *w, *t = (taskq_ent_t *)data;
taskq_t *tq = t->tqent_taskq;
struct list_head *l;
+ unsigned long flags;
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
if (t->tqent_flags & TQENT_FLAG_CANCEL) {
ASSERT(list_empty(&t->tqent_list));
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
return;
}
@@ -214,7 +213,7 @@ task_expire(unsigned long data)
if (l == &tq->tq_prio_list)
list_add(&t->tqent_list, &tq->tq_prio_list);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
wake_up(&tq->tq_work_waitq);
}
@@ -381,11 +380,11 @@ taskq_wait_id_check(taskq_t *tq, taskqid_t id)
{
int active = 0;
int rc;
+ unsigned long flags;
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
rc = (taskq_find(tq, id, &active) == NULL);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
return (rc);
}
@@ -405,11 +404,11 @@ static int
taskq_wait_outstanding_check(taskq_t *tq, taskqid_t id)
{
int rc;
+ unsigned long flags;
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
rc = (id < tq->tq_lowest_id);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
return (rc);
}
@@ -433,11 +432,11 @@ static int
taskq_wait_check(taskq_t *tq)
{
int rc;
+ unsigned long flags;
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
rc = (tq->tq_lowest_id == tq->tq_next_id);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
return (rc);
}
@@ -479,11 +478,11 @@ int
taskq_member(taskq_t *tq, void *t)
{
int found;
+ unsigned long flags;
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
found = taskq_member_impl(tq, t);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
return (found);
}
@@ -501,11 +500,11 @@ taskq_cancel_id(taskq_t *tq, taskqid_t id)
taskq_ent_t *t;
int active = 0;
int rc = ENOENT;
+ unsigned long flags;
ASSERT(tq);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
t = taskq_find(tq, id, &active);
if (t && !active) {
list_del_init(&t->tqent_list);
@@ -525,10 +524,10 @@ taskq_cancel_id(taskq_t *tq, taskqid_t id)
* drop the lock before synchronously cancelling the timer.
*/
if (timer_pending(&t->tqent_timer)) {
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
del_timer_sync(&t->tqent_timer);
- spin_lock_irqsave_nested(&tq->tq_lock,
- tq->tq_lock_flags, tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags,
+ tq->tq_lock_class);
}
if (!(t->tqent_flags & TQENT_FLAG_PREALLOC))
@@ -536,7 +535,7 @@ taskq_cancel_id(taskq_t *tq, taskqid_t id)
rc = 0;
}
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
if (active) {
taskq_wait_id(tq, id);
@@ -554,12 +553,12 @@ taskq_dispatch(taskq_t *tq, task_func_t func, void *arg, uint_t flags)
{
taskq_ent_t *t;
taskqid_t rc = 0;
+ unsigned long irqflags;
ASSERT(tq);
ASSERT(func);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, irqflags, tq->tq_lock_class);
/* Taskq being destroyed and all tasks drained */
if (!(tq->tq_flags & TASKQ_ACTIVE))
@@ -570,7 +569,7 @@ taskq_dispatch(taskq_t *tq, task_func_t func, void *arg, uint_t flags)
if ((flags & TQ_NOQUEUE) && (tq->tq_nactive == tq->tq_nthreads))
goto out;
- if ((t = task_alloc(tq, flags)) == NULL)
+ if ((t = task_alloc(tq, flags, &irqflags)) == NULL)
goto out;
spin_lock(&t->tqent_lock);
@@ -600,7 +599,7 @@ out:
if (tq->tq_nactive == tq->tq_nthreads)
(void) taskq_thread_spawn(tq);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, irqflags);
return (rc);
}
EXPORT_SYMBOL(taskq_dispatch);
@@ -611,18 +610,18 @@ taskq_dispatch_delay(taskq_t *tq, task_func_t func, void *arg,
{
taskqid_t rc = 0;
taskq_ent_t *t;
+ unsigned long irqflags;
ASSERT(tq);
ASSERT(func);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, irqflags, tq->tq_lock_class);
/* Taskq being destroyed and all tasks drained */
if (!(tq->tq_flags & TASKQ_ACTIVE))
goto out;
- if ((t = task_alloc(tq, flags)) == NULL)
+ if ((t = task_alloc(tq, flags, &irqflags)) == NULL)
goto out;
spin_lock(&t->tqent_lock);
@@ -647,7 +646,7 @@ out:
/* Spawn additional taskq threads if required. */
if (tq->tq_nactive == tq->tq_nthreads)
(void) taskq_thread_spawn(tq);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, irqflags);
return (rc);
}
EXPORT_SYMBOL(taskq_dispatch_delay);
@@ -656,10 +655,11 @@ void
taskq_dispatch_ent(taskq_t *tq, task_func_t func, void *arg, uint_t flags,
taskq_ent_t *t)
{
+ unsigned long irqflags;
ASSERT(tq);
ASSERT(func);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
+ spin_lock_irqsave_nested(&tq->tq_lock, irqflags,
tq->tq_lock_class);
/* Taskq being destroyed and all tasks drained */
@@ -695,7 +695,7 @@ out:
/* Spawn additional taskq threads if required. */
if (tq->tq_nactive == tq->tq_nthreads)
(void) taskq_thread_spawn(tq);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, irqflags);
}
EXPORT_SYMBOL(taskq_dispatch_ent);
@@ -749,13 +749,13 @@ static void
taskq_thread_spawn_task(void *arg)
{
taskq_t *tq = (taskq_t *)arg;
+ unsigned long flags;
(void) taskq_thread_create(tq);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
tq->tq_nspawn--;
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
}
/*
@@ -821,6 +821,7 @@ taskq_thread(void *args)
taskq_t *tq;
taskq_ent_t *t;
int seq_tasks = 0;
+ unsigned long flags;
ASSERT(tqt);
ASSERT(tqt->tqt_tq);
@@ -835,8 +836,7 @@ taskq_thread(void *args)
sigprocmask(SIG_BLOCK, &blocked, NULL);
flush_signals(current);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
/* Immediately exit if more threads than allowed were created. */
if (tq->tq_nthreads >= tq->tq_maxthreads)
@@ -858,13 +858,13 @@ taskq_thread(void *args)
}
add_wait_queue_exclusive(&tq->tq_work_waitq, &wait);
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
schedule();
seq_tasks = 0;
- spin_lock_irqsave_nested(&tq->tq_lock,
- tq->tq_lock_flags, tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags,
+ tq->tq_lock_class);
remove_wait_queue(&tq->tq_work_waitq, &wait);
} else {
__set_current_state(TASK_RUNNING);
@@ -888,13 +888,13 @@ taskq_thread(void *args)
taskq_insert_in_order(tq, tqt);
tq->tq_nactive++;
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
/* Perform the requested task */
t->tqent_func(t->tqent_arg);
- spin_lock_irqsave_nested(&tq->tq_lock,
- tq->tq_lock_flags, tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags,
+ tq->tq_lock_class);
tq->tq_nactive--;
list_del_init(&tqt->tqt_active_list);
tqt->tqt_task = NULL;
@@ -932,7 +932,7 @@ taskq_thread(void *args)
list_del_init(&tqt->tqt_thread_list);
error:
kmem_free(tqt, sizeof (taskq_thread_t));
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
return (0);
}
@@ -976,6 +976,7 @@ taskq_create(const char *name, int nthreads, pri_t pri,
taskq_t *tq;
taskq_thread_t *tqt;
int count = 0, rc = 0, i;
+ unsigned long irqflags;
ASSERT(name != NULL);
ASSERT(minalloc >= 0);
@@ -1019,13 +1020,14 @@ taskq_create(const char *name, int nthreads, pri_t pri,
tq->tq_lock_class = TQ_LOCK_GENERAL;
if (flags & TASKQ_PREPOPULATE) {
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
+ spin_lock_irqsave_nested(&tq->tq_lock, irqflags,
tq->tq_lock_class);
for (i = 0; i < minalloc; i++)
- task_done(tq, task_alloc(tq, TQ_PUSHPAGE | TQ_NEW));
+ task_done(tq, task_alloc(tq, TQ_PUSHPAGE | TQ_NEW,
+ &irqflags));
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, irqflags);
}
if ((flags & TASKQ_DYNAMIC) && spl_taskq_thread_dynamic)
@@ -1057,12 +1059,12 @@ taskq_destroy(taskq_t *tq)
struct task_struct *thread;
taskq_thread_t *tqt;
taskq_ent_t *t;
+ unsigned long flags;
ASSERT(tq);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
tq->tq_flags &= ~TASKQ_ACTIVE;
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
/*
* When TASKQ_ACTIVE is clear new tasks may not be added nor may
@@ -1073,8 +1075,7 @@ taskq_destroy(taskq_t *tq)
taskq_wait(tq);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
- tq->tq_lock_class);
+ spin_lock_irqsave_nested(&tq->tq_lock, flags, tq->tq_lock_class);
/*
* Signal each thread to exit and block until it does. Each thread
@@ -1086,11 +1087,11 @@ taskq_destroy(taskq_t *tq)
tqt = list_entry(tq->tq_thread_list.next,
taskq_thread_t, tqt_thread_list);
thread = tqt->tqt_thread;
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
kthread_stop(thread);
- spin_lock_irqsave_nested(&tq->tq_lock, tq->tq_lock_flags,
+ spin_lock_irqsave_nested(&tq->tq_lock, flags,
tq->tq_lock_class);
}
@@ -1113,7 +1114,7 @@ taskq_destroy(taskq_t *tq)
ASSERT(list_empty(&tq->tq_prio_list));
ASSERT(list_empty(&tq->tq_delay_list));
- spin_unlock_irqrestore(&tq->tq_lock, tq->tq_lock_flags);
+ spin_unlock_irqrestore(&tq->tq_lock, flags);
strfree(tq->tq_name);
kmem_free(tq, sizeof (taskq_t));
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 11:32:24 +0000