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Removed linux linked list dependency.

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This commit is contained in:
Bahadir Balban
2009-06-02 13:19:17 +03:00
parent 4757f46f71
commit 276b4643c6
69 changed files with 455 additions and 885 deletions
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42
tasks/mm0/src/task.c
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@@ -45,7 +45,7 @@ void print_tasks(void)
{
struct tcb *task;
printf("Tasks:\n========\n");
list_for_each_entry(task, &global_tasks.list, list) {
list_foreach_struct(task, &global_tasks.list, list) {
printf("Task tid: %d, spid: %d\n", task->tid, task->spid);
}
}
@@ -53,14 +53,14 @@ void print_tasks(void)
void global_add_task(struct tcb *task)
{
BUG_ON(!list_empty(&task->list));
list_add_tail(&task->list, &global_tasks.list);
list_insert_tail(&task->list, &global_tasks.list);
global_tasks.total++;
}
void global_remove_task(struct tcb *task)
{
BUG_ON(list_empty(&task->list));
list_del_init(&task->list);
list_remove_init(&task->list);
BUG_ON(--global_tasks.total < 0);
}
@@ -68,7 +68,7 @@ struct tcb *find_task(int tid)
{
struct tcb *t;
list_for_each_entry(t, &global_tasks.list, list)
list_foreach_struct(t, &global_tasks.list, list)
if (t->tid == tid)
return t;
return 0;
@@ -89,7 +89,7 @@ struct tcb *tcb_alloc_init(unsigned int flags)
return PTR_ERR(-ENOMEM);
}
task->vm_area_head->tcb_refs = 1;
INIT_LIST_HEAD(&task->vm_area_head->list);
link_init(&task->vm_area_head->list);
/* Also allocate a utcb head for new address space */
if (!(task->utcb_head =
@@ -99,7 +99,7 @@ struct tcb *tcb_alloc_init(unsigned int flags)
return PTR_ERR(-ENOMEM);
}
task->utcb_head->tcb_refs = 1;
INIT_LIST_HEAD(&task->utcb_head->list);
link_init(&task->utcb_head->list);
}
/* Allocate file structures if not shared */
@@ -120,9 +120,9 @@ struct tcb *tcb_alloc_init(unsigned int flags)
task->tgid = TASK_ID_INVALID;
/* Initialise list structure */
INIT_LIST_HEAD(&task->list);
INIT_LIST_HEAD(&task->child_ref);
INIT_LIST_HEAD(&task->children);
link_init(&task->list);
link_init(&task->child_ref);
link_init(&task->children);
return task;
}
@@ -180,15 +180,15 @@ int tcb_destroy(struct tcb *task)
* All children of the current task becomes children
* of the parent of this task.
*/
list_for_each_entry_safe(child, n, &task->children,
list_foreach_removable_struct(child, n, &task->children,
child_ref) {
list_del_init(&child->child_ref);
list_add_tail(&child->child_ref,
list_remove_init(&child->child_ref);
list_insert_tail(&child->child_ref,
&task->parent->children);
child->parent = task->parent;
}
/* The task is not a child of its parent */
list_del_init(&task->child_ref);
list_remove_init(&task->child_ref);
/* Now task deletion make sure task is in no list */
BUG_ON(!list_empty(&task->list));
@@ -209,7 +209,7 @@ int task_copy_vmas(struct tcb *to, struct tcb *from)
{
struct vm_area *vma, *new_vma;
list_for_each_entry(vma, &from->vm_area_head->list, list) {
list_foreach_struct(vma, &from->vm_area_head->list, list) {
/* Create a new vma */
new_vma = vma_new(vma->pfn_start, vma->pfn_end - vma->pfn_start,
@@ -233,12 +233,12 @@ int task_release_vmas(struct task_vma_head *vma_head)
{
struct vm_area *vma, *n;
list_for_each_entry_safe(vma, n, &vma_head->list, list) {
list_foreach_removable_struct(vma, n, &vma_head->list, list) {
/* Release all links */
vma_drop_merge_delete_all(vma);
/* Delete the vma from task's vma list */
list_del(&vma->list);
list_remove(&vma->list);
/* Free the vma */
kfree(vma);
@@ -358,11 +358,11 @@ struct tcb *task_create(struct tcb *parent, struct task_ids *ids,
* On these conditions child shares
* the parent of the caller
*/
list_add_tail(&task->child_ref,
list_insert_tail(&task->child_ref,
&parent->parent->children);
task->parent = parent->parent;
} else {
list_add_tail(&task->child_ref,
list_insert_tail(&task->child_ref,
&parent->children);
task->parent = parent;
}
@@ -370,7 +370,7 @@ struct tcb *task_create(struct tcb *parent, struct task_ids *ids,
struct tcb *pager = find_task(PAGER_TID);
/* All parentless tasks are children of the pager */
list_add_tail(&task->child_ref, &pager->children);
list_insert_tail(&task->child_ref, &pager->children);
task->parent = pager;
}
@@ -674,7 +674,7 @@ int vfs_send_task_data(struct tcb *vfs)
tdata_head->total = global_tasks.total;
/* Write per-task data for all tasks */
list_for_each_entry(t, &global_tasks.list, list) {
list_foreach_struct(t, &global_tasks.list, list) {
tdata_head->tdata[li].tid = t->tid;
tdata_head->tdata[li].shpage_address = (unsigned long)t->shared_page;
li++;
@@ -697,7 +697,7 @@ int task_prefault_regions(struct tcb *task, struct vm_file *f)
{
struct vm_area *vma;
list_for_each_entry(vma, &task->vm_area_head->list, list) {
list_foreach_struct(vma, &task->vm_area_head->list, list) {
for (int pfn = vma->pfn_start; pfn < vma->pfn_end; pfn++)
BUG_ON(prefault_page(task, __pfn_to_addr(pfn),
VM_READ | VM_WRITE) < 0);