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Fix CPU load balancer bugs, scheduling points support for remote CPUs
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This commit is contained in:
Kamil Kowalczyk
2026-02-05 23:44:32 +01:00
parent 5283787a80
commit 5fe9d0a158
19 changed files with 129 additions and 79 deletions
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18
kernel/proc/mutex.c
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@@ -37,14 +37,15 @@ void proc_mutexes_cleanup (struct proc* proc) {
if (resource->u.mutex.owner == proc && resource->u.mutex.locked) {
spin_unlock (&resource->lock, &ctxrs);
proc_mutex_unlock (proc, &resource->u.mutex);
struct cpu* reschedule_cpu;
proc_mutex_unlock (proc, &resource->u.mutex, &reschedule_cpu);
}
}
spin_unlock (&proc->procgroup->lock, &ctxpg);
}
bool proc_cleanup_resource_mutex (struct proc_resource* resource) {
bool proc_cleanup_resource_mutex (struct proc_resource* resource, struct cpu** reschedule_cpu) {
struct proc_mutex* mutex = &resource->u.mutex;
spin_lock_ctx_t ctxmt, ctxsq;
@@ -62,7 +63,7 @@ bool proc_cleanup_resource_mutex (struct proc_resource* resource) {
spin_unlock (&mutex->suspension_q.lock, &ctxsq);
spin_unlock (&mutex->resource->lock, &ctxmt);
reschedule = reschedule || proc_sq_resume (suspended_proc, sq_entry);
reschedule = reschedule || proc_sq_resume (suspended_proc, sq_entry, reschedule_cpu);
/* reacquire */
spin_lock (&mutex->resource->lock, &ctxmt);
@@ -78,7 +79,7 @@ bool proc_cleanup_resource_mutex (struct proc_resource* resource) {
return reschedule;
}
bool proc_mutex_lock (struct proc* proc, struct proc_mutex* mutex) {
bool proc_mutex_lock (struct proc* proc, struct proc_mutex* mutex, struct cpu** reschedule_cpu) {
spin_lock_ctx_t ctxmt;
spin_lock (&mutex->resource->lock, &ctxmt);
@@ -90,10 +91,11 @@ bool proc_mutex_lock (struct proc* proc, struct proc_mutex* mutex) {
return PROC_NO_RESCHEDULE;
}
return proc_sq_suspend (proc, &mutex->suspension_q, &mutex->resource->lock, &ctxmt);
return proc_sq_suspend (proc, &mutex->suspension_q, &mutex->resource->lock, &ctxmt,
reschedule_cpu);
}
bool proc_mutex_unlock (struct proc* proc, struct proc_mutex* mutex) {
bool proc_mutex_unlock (struct proc* proc, struct proc_mutex* mutex, struct cpu** reschedule_cpu) {
spin_lock_ctx_t ctxmt, ctxsq;
spin_lock (&mutex->resource->lock, &ctxmt);
@@ -117,7 +119,7 @@ bool proc_mutex_unlock (struct proc* proc, struct proc_mutex* mutex) {
spin_unlock (&mutex->suspension_q.lock, &ctxsq);
spin_unlock (&mutex->resource->lock, &ctxmt);
return proc_sq_resume (resumed_proc, sq_entry);
return proc_sq_resume (resumed_proc, sq_entry, reschedule_cpu);
}
mutex->locked = false;
@@ -126,5 +128,5 @@ bool proc_mutex_unlock (struct proc* proc, struct proc_mutex* mutex) {
spin_unlock (&mutex->suspension_q.lock, &ctxsq);
spin_unlock (&mutex->resource->lock, &ctxmt);
return PROC_NEED_RESCHEDULE;
return PROC_NO_RESCHEDULE;
}