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Use reference counting to track filetime of process PD
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This commit is contained in:
Kamil Kowalczyk
2026-01-14 23:11:06 +01:00
parent 270ff507d4
commit 7cd5623d36
6 changed files with 44 additions and 27 deletions
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12
kernel/proc/proc.c
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@@ -60,16 +60,16 @@ bool proc_map (struct proc* proc, uintptr_t start_paddr, uintptr_t start_vaddr,
flags &= ~(MM_PD_LOCK | MM_PD_RELOAD); /* clear LOCK flag if present, because we lock manualy */
spin_lock (&proc->pd.lock, &ctxprpd);
spin_lock (&proc->pd->lock, &ctxprpd);
list_append (proc->mappings, &mapping->proc_mappings_link);
for (uintptr_t vpage = start_vaddr, ppage = start_paddr; vpage < start_vaddr + pages * PAGE_SIZE;
vpage += PAGE_SIZE, ppage += PAGE_SIZE) {
mm_map_page (&proc->pd, ppage, vpage, flags);
mm_map_page (proc->pd, ppage, vpage, flags);
}
spin_unlock (&proc->pd.lock, &ctxprpd);
spin_unlock (&proc->pd->lock, &ctxprpd);
return true;
}
@@ -85,7 +85,7 @@ bool proc_unmap (struct proc* proc, uintptr_t start_vaddr, size_t pages) {
if (tail_mapping == NULL)
return false;
spin_lock (&proc->pd.lock, &ctxprpd);
spin_lock (&proc->pd->lock, &ctxprpd);
list_foreach (proc->mappings, mapping_link, mapping_link_tmp) {
struct proc_mapping* mapping =
@@ -127,10 +127,10 @@ bool proc_unmap (struct proc* proc, uintptr_t start_vaddr, size_t pages) {
free (tail_mapping);
for (uintptr_t vpage = start_vaddr; vpage < end_vaddr; vpage += PAGE_SIZE) {
mm_unmap_page (&proc->pd, vpage, 0);
mm_unmap_page (proc->pd, vpage, 0);
}
spin_unlock (&proc->pd.lock, &ctxprpd);
spin_unlock (&proc->pd->lock, &ctxprpd);
return true;
}