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Remove dead process from it's suspension queues

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This commit is contained in:
Kamil Kowalczyk
2026-01-25 22:39:29 +01:00
parent 5e16bb647c
commit 18f791222e
3 changed files with 34 additions and 9 deletions
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30
kernel/amd64/proc.c
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@@ -184,10 +184,35 @@ struct proc* proc_clone (struct proc* proto, uintptr_t vstack_top, size_t stack_
void proc_cleanup (struct proc* proc) {
struct limine_hhdm_response* hhdm = limine_hhdm_request.response;
spin_lock_ctx_t ctxprpd;
spin_lock_ctx_t ctxprpd, ctxsq, ctxpr;
spin_lock (&proc->lock, &ctxpr);
/* clean suspension queue entries */
struct list_node_link *sq_link, *sq_link_tmp;
list_foreach (proc->sq_entries, sq_link, sq_link_tmp) {
struct proc_sq_entry* sq_entry = list_entry (sq_link, struct proc_sq_entry, proc_link);
struct proc_suspension_q* sq = sq_entry->sq;
spin_lock (&sq->lock, &ctxsq);
/* remove from sq's list */
list_remove (sq->proc_list, &sq_entry->sq_link);
/* remove from proc's list */
list_remove (proc->sq_entries, &sq_entry->proc_link);
spin_unlock (&sq->lock, &ctxsq);
free (sq_entry);
}
spin_unlock (&proc->lock, &ctxpr);
/* clean resources */
proc_cleanup_resources (proc);
/* clean virtual address space */
if (atomic_fetch_sub (&proc->pd->refs, 1) == 1) {
DEBUG ("PID %d Free virtual address space\n", proc->pid);
struct list_node_link *mapping_link, *mapping_link_tmp;
@@ -206,13 +231,16 @@ void proc_cleanup (struct proc* proc) {
free (proc->pd);
}
/* clean kstack */
pmm_free (proc->pdata.kernel_stack - (uintptr_t)hhdm->offset - KSTACK_SIZE,
KSTACK_SIZE / PAGE_SIZE);
/* clean ustack */
if ((proc->flags & PROC_USTK_PREALLOC))
pmm_free (proc->pdata.user_stack, USTACK_SIZE / PAGE_SIZE);
DEBUG ("PID %d Free stacks\n", proc->pid);
/* clean the process */
free (proc);
}