#define CFS_WS_NAME_LEN 16
typedef struct cfs_wi_sched {
- cfs_list_t ws_list; /* chain on global list */
+ struct list_head ws_list; /* chain on global list */
#ifdef __KERNEL__
/** serialised workitems */
- spinlock_t ws_lock;
+ spinlock_t ws_lock;
/** where schedulers sleep */
- cfs_waitq_t ws_waitq;
+ wait_queue_head_t ws_waitq;
#endif
/** concurrent workitems */
- cfs_list_t ws_runq;
+ struct list_head ws_runq;
/** rescheduled running-workitems, a workitem can be rescheduled
* while running in wi_action(), but we don't to execute it again
* unless it returns from wi_action(), so we put it on ws_rerunq
* while rescheduling, and move it to runq after it returns
* from wi_action() */
- cfs_list_t ws_rerunq;
+ struct list_head ws_rerunq;
/** CPT-table for this scheduler */
struct cfs_cpt_table *ws_cptab;
/** CPT id for affinity */
/** serialize */
spinlock_t wi_glock;
/** list of all schedulers */
- cfs_list_t wi_scheds;
+ struct list_head wi_scheds;
/** WI module is initialized */
int wi_init;
/** shutting down the whole WI module */
{
cfs_wi_sched_lock(sched);
if (sched->ws_stopping) {
- cfs_wi_sched_unlock(sched);
- return 0;
- }
+ cfs_wi_sched_unlock(sched);
+ return 0;
+ }
- if (!cfs_list_empty(&sched->ws_runq)) {
- cfs_wi_sched_unlock(sched);
- return 0;
- }
- cfs_wi_sched_unlock(sched);
- return 1;
+ if (!list_empty(&sched->ws_runq)) {
+ cfs_wi_sched_unlock(sched);
+ return 0;
+ }
+ cfs_wi_sched_unlock(sched);
+ return 1;
}
#else /* !__KERNEL__ */
void
cfs_wi_exit(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
{
- LASSERT(!cfs_in_interrupt()); /* because we use plain spinlock */
+ LASSERT(!in_interrupt()); /* because we use plain spinlock */
LASSERT(!sched->ws_stopping);
cfs_wi_sched_lock(sched);
LASSERT(wi->wi_running);
#endif
if (wi->wi_scheduled) { /* cancel pending schedules */
- LASSERT(!cfs_list_empty(&wi->wi_list));
- cfs_list_del_init(&wi->wi_list);
+ LASSERT(!list_empty(&wi->wi_list));
+ list_del_init(&wi->wi_list);
LASSERT(sched->ws_nscheduled > 0);
sched->ws_nscheduled--;
}
- LASSERT(cfs_list_empty(&wi->wi_list));
+ LASSERT(list_empty(&wi->wi_list));
wi->wi_scheduled = 1; /* LBUG future schedule attempts */
cfs_wi_sched_unlock(sched);
{
int rc;
- LASSERT(!cfs_in_interrupt()); /* because we use plain spinlock */
+ LASSERT(!in_interrupt()); /* because we use plain spinlock */
LASSERT(!sched->ws_stopping);
/*
rc = !(wi->wi_running);
if (wi->wi_scheduled) { /* cancel pending schedules */
- LASSERT(!cfs_list_empty(&wi->wi_list));
- cfs_list_del_init(&wi->wi_list);
+ LASSERT(!list_empty(&wi->wi_list));
+ list_del_init(&wi->wi_list);
LASSERT(sched->ws_nscheduled > 0);
sched->ws_nscheduled--;
- wi->wi_scheduled = 0;
- }
+ wi->wi_scheduled = 0;
+ }
- LASSERT (cfs_list_empty(&wi->wi_list));
+ LASSERT (list_empty(&wi->wi_list));
- cfs_wi_sched_unlock(sched);
- return rc;
+ cfs_wi_sched_unlock(sched);
+ return rc;
}
EXPORT_SYMBOL(cfs_wi_deschedule);
void
cfs_wi_schedule(struct cfs_wi_sched *sched, cfs_workitem_t *wi)
{
- LASSERT(!cfs_in_interrupt()); /* because we use plain spinlock */
+ LASSERT(!in_interrupt()); /* because we use plain spinlock */
LASSERT(!sched->ws_stopping);
- cfs_wi_sched_lock(sched);
+ cfs_wi_sched_lock(sched);
- if (!wi->wi_scheduled) {
- LASSERT (cfs_list_empty(&wi->wi_list));
+ if (!wi->wi_scheduled) {
+ LASSERT (list_empty(&wi->wi_list));
- wi->wi_scheduled = 1;
+ wi->wi_scheduled = 1;
sched->ws_nscheduled++;
- if (!wi->wi_running) {
- cfs_list_add_tail(&wi->wi_list, &sched->ws_runq);
+ if (!wi->wi_running) {
+ list_add_tail(&wi->wi_list, &sched->ws_runq);
#ifdef __KERNEL__
- cfs_waitq_signal(&sched->ws_waitq);
+ wake_up(&sched->ws_waitq);
#endif
- } else {
- cfs_list_add(&wi->wi_list, &sched->ws_rerunq);
- }
- }
+ } else {
+ list_add(&wi->wi_list, &sched->ws_rerunq);
+ }
+ }
- LASSERT (!cfs_list_empty(&wi->wi_list));
- cfs_wi_sched_unlock(sched);
- return;
+ LASSERT (!list_empty(&wi->wi_list));
+ cfs_wi_sched_unlock(sched);
+ return;
}
EXPORT_SYMBOL(cfs_wi_schedule);
/* CPT affinity scheduler? */
if (sched->ws_cptab != NULL)
- cfs_cpt_bind(sched->ws_cptab, sched->ws_cpt);
+ if (cfs_cpt_bind(sched->ws_cptab, sched->ws_cpt) != 0)
+ CWARN("Failed to bind %s on CPT %d\n",
+ sched->ws_name, sched->ws_cpt);
spin_lock(&cfs_wi_data.wi_glock);
cfs_wi_sched_lock(sched);
while (!sched->ws_stopping) {
- int nloops = 0;
- int rc;
- cfs_workitem_t *wi;
-
- while (!cfs_list_empty(&sched->ws_runq) &&
- nloops < CFS_WI_RESCHED) {
- wi = cfs_list_entry(sched->ws_runq.next,
- cfs_workitem_t, wi_list);
+ int nloops = 0;
+ int rc;
+ cfs_workitem_t *wi;
+
+ while (!list_empty(&sched->ws_runq) &&
+ nloops < CFS_WI_RESCHED) {
+ wi = list_entry(sched->ws_runq.next,
+ cfs_workitem_t, wi_list);
LASSERT(wi->wi_scheduled && !wi->wi_running);
- cfs_list_del_init(&wi->wi_list);
+ list_del_init(&wi->wi_list);
LASSERT(sched->ws_nscheduled > 0);
sched->ws_nscheduled--;
if (rc != 0) /* WI should be dead, even be freed! */
continue;
- wi->wi_running = 0;
- if (cfs_list_empty(&wi->wi_list))
+ wi->wi_running = 0;
+ if (list_empty(&wi->wi_list))
continue;
LASSERT(wi->wi_scheduled);
- /* wi is rescheduled, should be on rerunq now, we
- * move it to runq so it can run action now */
- cfs_list_move_tail(&wi->wi_list, &sched->ws_runq);
+ /* wi is rescheduled, should be on rerunq now, we
+ * move it to runq so it can run action now */
+ list_move_tail(&wi->wi_list, &sched->ws_runq);
}
- if (!cfs_list_empty(&sched->ws_runq)) {
- cfs_wi_sched_unlock(sched);
- /* don't sleep because some workitems still
- * expect me to come back soon */
- cfs_cond_resched();
- cfs_wi_sched_lock(sched);
- continue;
- }
+ if (!list_empty(&sched->ws_runq)) {
+ cfs_wi_sched_unlock(sched);
+ /* don't sleep because some workitems still
+ * expect me to come back soon */
+ cond_resched();
+ cfs_wi_sched_lock(sched);
+ continue;
+ }
- cfs_wi_sched_unlock(sched);
- cfs_wait_event_interruptible_exclusive(sched->ws_waitq,
- !cfs_wi_sched_cansleep(sched), rc);
- cfs_wi_sched_lock(sched);
+ cfs_wi_sched_unlock(sched);
+ rc = wait_event_interruptible_exclusive(sched->ws_waitq,
+ !cfs_wi_sched_cansleep(sched));
+ cfs_wi_sched_lock(sched);
}
cfs_wi_sched_unlock(sched);
struct cfs_wi_sched *tmp;
/** rerunq is always empty for userspace */
- cfs_list_for_each_entry(tmp,
- &cfs_wi_data.wi_scheds, ws_list) {
- if (!cfs_list_empty(&tmp->ws_runq)) {
+ list_for_each_entry(tmp, &cfs_wi_data.wi_scheds, ws_list) {
+ if (!list_empty(&tmp->ws_runq)) {
sched = tmp;
break;
}
if (sched == NULL)
break;
- wi = cfs_list_entry(sched->ws_runq.next,
+ wi = list_entry(sched->ws_runq.next,
cfs_workitem_t, wi_list);
- cfs_list_del_init(&wi->wi_list);
+ list_del_init(&wi->wi_list);
LASSERT(sched->ws_nscheduled > 0);
sched->ws_nscheduled--;
return;
}
- LASSERT(!cfs_list_empty(&sched->ws_list));
+ LASSERT(!list_empty(&sched->ws_list));
sched->ws_stopping = 1;
spin_unlock(&cfs_wi_data.wi_glock);
#ifdef __KERNEL__
- cfs_waitq_broadcast(&sched->ws_waitq);
+ wake_up_all(&sched->ws_waitq);
spin_lock(&cfs_wi_data.wi_glock);
{
}
}
- cfs_list_del(&sched->ws_list);
+ list_del(&sched->ws_list);
spin_unlock(&cfs_wi_data.wi_glock);
#endif
if (sched == NULL)
return -ENOMEM;
- strncpy(sched->ws_name, name, CFS_WS_NAME_LEN);
+ if (strlen(name) > sizeof(sched->ws_name)-1) {
+ LIBCFS_FREE(sched, sizeof(*sched));
+ return -E2BIG;
+ }
+ strlcpy(sched->ws_name, name, sizeof(sched->ws_name));
+
sched->ws_cptab = cptab;
sched->ws_cpt = cpt;
#ifdef __KERNEL__
spin_lock_init(&sched->ws_lock);
- cfs_waitq_init(&sched->ws_waitq);
+ init_waitqueue_head(&sched->ws_waitq);
#endif
- CFS_INIT_LIST_HEAD(&sched->ws_runq);
- CFS_INIT_LIST_HEAD(&sched->ws_rerunq);
- CFS_INIT_LIST_HEAD(&sched->ws_list);
+ INIT_LIST_HEAD(&sched->ws_runq);
+ INIT_LIST_HEAD(&sched->ws_rerunq);
+ INIT_LIST_HEAD(&sched->ws_list);
#ifdef __KERNEL__
for (; nthrs > 0; nthrs--) {
- char name[16];
- cfs_task_t *task;
+ char name[16];
+ struct task_struct *task;
spin_lock(&cfs_wi_data.wi_glock);
while (sched->ws_starting > 0) {
spin_unlock(&cfs_wi_data.wi_glock);
- cfs_schedule();
+ schedule();
spin_lock(&cfs_wi_data.wi_glock);
}
spin_lock(&cfs_wi_data.wi_glock);
/* make up for cfs_wi_sched_destroy */
- cfs_list_add(&sched->ws_list, &cfs_wi_data.wi_scheds);
+ list_add(&sched->ws_list, &cfs_wi_data.wi_scheds);
sched->ws_starting--;
spin_unlock(&cfs_wi_data.wi_glock);
}
#endif
spin_lock(&cfs_wi_data.wi_glock);
- cfs_list_add(&sched->ws_list, &cfs_wi_data.wi_scheds);
+ list_add(&sched->ws_list, &cfs_wi_data.wi_scheds);
spin_unlock(&cfs_wi_data.wi_glock);
*sched_pp = sched;
memset(&cfs_wi_data, 0, sizeof(cfs_wi_data));
spin_lock_init(&cfs_wi_data.wi_glock);
- CFS_INIT_LIST_HEAD(&cfs_wi_data.wi_scheds);
+ INIT_LIST_HEAD(&cfs_wi_data.wi_scheds);
cfs_wi_data.wi_init = 1;
return 0;
#ifdef __KERNEL__
/* nobody should contend on this list */
- cfs_list_for_each_entry(sched, &cfs_wi_data.wi_scheds, ws_list) {
+ list_for_each_entry(sched, &cfs_wi_data.wi_scheds, ws_list) {
sched->ws_stopping = 1;
- cfs_waitq_broadcast(&sched->ws_waitq);
+ wake_up_all(&sched->ws_waitq);
}
- cfs_list_for_each_entry(sched, &cfs_wi_data.wi_scheds, ws_list) {
+ list_for_each_entry(sched, &cfs_wi_data.wi_scheds, ws_list) {
spin_lock(&cfs_wi_data.wi_glock);
while (sched->ws_nthreads != 0) {
spin_unlock(&cfs_wi_data.wi_glock);
}
#endif
- while (!cfs_list_empty(&cfs_wi_data.wi_scheds)) {
- sched = cfs_list_entry(cfs_wi_data.wi_scheds.next,
+ while (!list_empty(&cfs_wi_data.wi_scheds)) {
+ sched = list_entry(cfs_wi_data.wi_scheds.next,
struct cfs_wi_sched, ws_list);
- cfs_list_del(&sched->ws_list);
+ list_del(&sched->ws_list);
LIBCFS_FREE(sched, sizeof(*sched));
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff