sambuc/codezero
1
0
Fork 0
mirror of https://github.com/drasko/codezero.git synced 2026-05-03 09:01:30 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

Shared tcb structures are made independent

Browse Source 
For clone, file descriptor and vm area structures need to be
separate from the tcb and reached via a pointer so that they
can be shared among multiple tcbs.
This commit is contained in:
Bahadir Balban
2008-09-09 22:17:42 +03:00
parent 002fe79a54
commit d7de9aa643
8 changed files with 156 additions and 176 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
tasks/mm0/src/fault.c
View File

@@ -569,7 +569,7 @@ int vm_freeze_shadows(struct tcb *task)
struct vm_object *vmo;
struct page *p;
list_for_each_entry(vma, &task->vm_area_list, list) {
list_for_each_entry(vma, &task->vm_area_head->list, list) {
/* Shared vmas don't have shadows */
if (vma->flags & VMA_SHARED)
@@ -699,7 +699,7 @@ int page_fault_handler(l4id_t sender, fault_kdata_t *fkdata)
/* Get vma info */
if (!(fault.vma = find_vma(fault.address,
&fault.task->vm_area_list)))
&fault.task->vm_area_head->list)))
printf("Hmm. No vma for faulty region. "
"Bad things will happen.\n");
@@ -726,7 +726,7 @@ int validate_task_range(struct tcb *t, unsigned long start,
/* Find the vma that maps that virtual address */
for (unsigned long vaddr = start; vaddr < end; vaddr += PAGE_SIZE) {
if (!(vma = find_vma(vaddr, &t->vm_area_list))) {
if (!(vma = find_vma(vaddr, &t->vm_area_head->list))) {
printf("%s: No VMA found for 0x%x on task: %d\n",
__FUNCTION__, vaddr, t->tid);
return -EINVAL;
@@ -752,7 +752,7 @@ struct page *task_virt_to_page(struct tcb *t, unsigned long virtual)
struct page *page;
/* First find the vma that maps that virtual address */
if (!(vma = find_vma(virtual, &t->vm_area_list))) {
if (!(vma = find_vma(virtual, &t->vm_area_head->list))) {
printf("%s: No VMA found for 0x%x on task: %d\n",
__FUNCTION__, virtual, t->tid);
return PTR_ERR(-EINVAL);
@@ -813,7 +813,7 @@ int prefault_page(struct tcb *task, unsigned long address,
/* Find the vma */
if (!(fault.vma = find_vma(fault.address,
&fault.task->vm_area_list))) {
&fault.task->vm_area_head->list))) {
err = -EINVAL;
dprintf("%s: Invalid: No vma for given address. %d\n",
__FUNCTION__, err);