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Let SA process work under ULE scheduler, originally it would panic kernel.

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Reviewed by: jeff
This commit is contained in:
davidxu 2003-08-26 11:33:15 +00:00
parent 54f8080ca3
commit f840df8e8a
3 changed files with 49 additions and 24 deletions
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19
sys/kern/kern_kse.c
View File

@ -259,8 +259,7 @@ kse_unlink(struct kse *ke)
TAILQ_REMOVE(&kg->kg_iq, ke, ke_kgrlist);
kg->kg_idle_kses--;
}
if (--kg->kg_kses == 0)
ksegrp_unlink(kg);
--kg->kg_kses;
/*
* Aggregate stats from the KSE
*/
@ -396,6 +395,7 @@ kse_thr_interrupt(struct thread *td, struct kse_thr_interrupt_args *uap)
struct thread *td2;
p = td->td_proc;
if (!(p->p_flag & P_SA))
return (EINVAL);
@ -696,14 +696,18 @@ kse_create(struct thread *td, struct kse_create_args *uap)
kg_startzero, kg_endzero));
bcopy(&kg->kg_startcopy, &newkg->kg_startcopy,
RANGEOF(struct ksegrp, kg_startcopy, kg_endcopy));
PROC_LOCK(p);
mtx_lock_spin(&sched_lock);
if (p->p_numksegrps >= max_groups_per_proc) {
mtx_unlock_spin(&sched_lock);
PROC_UNLOCK(p);
ksegrp_free(newkg);
return (EPROCLIM);
}
ksegrp_link(newkg, p);
sched_fork_ksegrp(kg, newkg);
mtx_unlock_spin(&sched_lock);
PROC_UNLOCK(p);
} else {
if (!first && ((td->td_flags & TDF_SA) ^ sa) != 0)
return (EINVAL);
@ -748,6 +752,7 @@ kse_create(struct thread *td, struct kse_create_args *uap)
#endif
mtx_lock_spin(&sched_lock);
kse_link(newke, newkg);
sched_fork_kse(td->td_kse, newke);
/* Add engine */
kse_reassign(newke);
mtx_unlock_spin(&sched_lock);
@ -1266,13 +1271,20 @@ thread_exit(void)
if (td->td_upcall)
upcall_remove(td);
sched_exit_thread(FIRST_THREAD_IN_PROC(p), td);
sched_exit_kse(FIRST_KSE_IN_PROC(p), ke);
ke->ke_state = KES_UNQUEUED;
ke->ke_thread = NULL;
/*
* Decide what to do with the KSE attached to this thread.
*/
if (ke->ke_flags & KEF_EXIT)
if (ke->ke_flags & KEF_EXIT) {
kse_unlink(ke);
if (kg->kg_kses == 0) {
sched_exit_ksegrp(FIRST_KSEGRP_IN_PROC(p), kg);
ksegrp_unlink(kg);
}
}
else
kse_reassign(ke);
PROC_UNLOCK(p);
@ -1484,6 +1496,7 @@ thread_schedule_upcall(struct thread *td, struct kse_upcall *ku)
td2->td_inhibitors = 0;
SIGFILLSET(td2->td_sigmask);
SIG_CANTMASK(td2->td_sigmask);
sched_fork_thread(td, td2);
return (td2); /* bogus.. should be a void function */
}

19
sys/kern/kern_thread.c
View File

@ -259,8 +259,7 @@ kse_unlink(struct kse *ke)
TAILQ_REMOVE(&kg->kg_iq, ke, ke_kgrlist);
kg->kg_idle_kses--;
}
if (--kg->kg_kses == 0)
ksegrp_unlink(kg);
--kg->kg_kses;
/*
* Aggregate stats from the KSE
*/
@ -396,6 +395,7 @@ kse_thr_interrupt(struct thread *td, struct kse_thr_interrupt_args *uap)
struct thread *td2;
p = td->td_proc;
if (!(p->p_flag & P_SA))
return (EINVAL);
@ -696,14 +696,18 @@ kse_create(struct thread *td, struct kse_create_args *uap)
kg_startzero, kg_endzero));
bcopy(&kg->kg_startcopy, &newkg->kg_startcopy,
RANGEOF(struct ksegrp, kg_startcopy, kg_endcopy));
PROC_LOCK(p);
mtx_lock_spin(&sched_lock);
if (p->p_numksegrps >= max_groups_per_proc) {
mtx_unlock_spin(&sched_lock);
PROC_UNLOCK(p);
ksegrp_free(newkg);
return (EPROCLIM);
}
ksegrp_link(newkg, p);
sched_fork_ksegrp(kg, newkg);
mtx_unlock_spin(&sched_lock);
PROC_UNLOCK(p);
} else {
if (!first && ((td->td_flags & TDF_SA) ^ sa) != 0)
return (EINVAL);
@ -748,6 +752,7 @@ kse_create(struct thread *td, struct kse_create_args *uap)
#endif
mtx_lock_spin(&sched_lock);
kse_link(newke, newkg);
sched_fork_kse(td->td_kse, newke);
/* Add engine */
kse_reassign(newke);
mtx_unlock_spin(&sched_lock);
@ -1266,13 +1271,20 @@ thread_exit(void)
if (td->td_upcall)
upcall_remove(td);
sched_exit_thread(FIRST_THREAD_IN_PROC(p), td);
sched_exit_kse(FIRST_KSE_IN_PROC(p), ke);
ke->ke_state = KES_UNQUEUED;
ke->ke_thread = NULL;
/*
* Decide what to do with the KSE attached to this thread.
*/
if (ke->ke_flags & KEF_EXIT)
if (ke->ke_flags & KEF_EXIT) {
kse_unlink(ke);
if (kg->kg_kses == 0) {
sched_exit_ksegrp(FIRST_KSEGRP_IN_PROC(p), kg);
ksegrp_unlink(kg);
}
}
else
kse_reassign(ke);
PROC_UNLOCK(p);
@ -1484,6 +1496,7 @@ thread_schedule_upcall(struct thread *td, struct kse_upcall *ku)
td2->td_inhibitors = 0;
SIGFILLSET(td2->td_sigmask);
SIG_CANTMASK(td2->td_sigmask);
sched_fork_thread(td, td2);
return (td2); /* bogus.. should be a void function */
}

35
sys/kern/sched_ule.c
View File

@ -772,18 +772,12 @@ sched_pickcpu(void)
void
sched_prio(struct thread *td, u_char prio)
{
struct kse *ke;
struct runq *rq;
mtx_assert(&sched_lock, MA_OWNED);
ke = td->td_kse;
td->td_priority = prio;
if (TD_ON_RUNQ(td)) {
rq = ke->ke_runq;
runq_remove(rq, ke);
runq_add(rq, ke);
adjustrunqueue(td, prio);
} else {
td->td_priority = prio;
}
}
@ -802,15 +796,20 @@ sched_switchout(struct thread *td)
td->td_flags &= ~TDF_NEEDRESCHED;
if (TD_IS_RUNNING(td)) {
/*
* This queue is always correct except for idle threads which
* have a higher priority due to priority propagation.
*/
if (ke->ke_ksegrp->kg_pri_class == PRI_IDLE &&
ke->ke_thread->td_priority > PRI_MIN_IDLE)
ke->ke_runq = KSEQ_SELF()->ksq_curr;
runq_add(ke->ke_runq, ke);
/* setrunqueue(td); */
if (td->td_proc->p_flag & P_SA) {
kseq_rem(KSEQ_CPU(ke->ke_cpu), ke);
setrunqueue(td);
} else {
/*
* This queue is always correct except for idle threads which
* have a higher priority due to priority propagation.
*/
if (ke->ke_ksegrp->kg_pri_class == PRI_IDLE &&
ke->ke_thread->td_priority > PRI_MIN_IDLE)
ke->ke_runq = KSEQ_SELF()->ksq_curr;
runq_add(ke->ke_runq, ke);
/* setrunqueue(td); */
}
return;
}
if (ke->ke_runq)