static int mlock_fixup(struct vm_area_struct * vma,
unsigned long start, unsigned long end, unsigned int newflags)
{
int pages, retval;
if (newflags == vma->vm_flags)
return 0;
if (start == vma->vm_start) {
if (end == vma->vm_end)
retval = mlock_fixup_all(vma, newflags);
else
retval = mlock_fixup_start(vma, end, newflags);
} else {
if (end == vma->vm_end)
retval = mlock_fixup_end(vma, start, newflags);
else
retval = mlock_fixup_middle(vma, start, end, newflags);
}
if (!retval) {
/* keep track of amount of locked VM */
pages = (end - start) >> PAGE_SHIFT;
if (!(newflags & VM_LOCKED))
pages = -pages;
vma->vm_mm->locked_vm += pages;
#ifndef CONFIG_OSFMACH3
if ((newflags & VM_LOCKED) && (newflags & VM_READ))
while (start < end) {
int c = get_user((int *) start);
__asm__ __volatile__("": :"r" (c));
start += PAGE_SIZE;
}
#endif /* CONFIG_OSFMACH3 */
}
static int mlock_fixup(struct vm_area_struct * vma,
unsigned long start, unsigned long end, unsigned int newflags)
{
int pages, retval;
if (newflags == vma->vm_flags)
return 0;
if (start == vma->vm_start) {
if (end == vma->vm_end)
retval = mlock_fixup_all(vma, newflags);
else
retval = mlock_fixup_start(vma, end, newflags);
} else {
if (end == vma->vm_end)
retval = mlock_fixup_end(vma, start, newflags);
else
retval = mlock_fixup_middle(vma, start, end, newflags);
}
if (!retval) {
/* keep track of amount of locked VM */
pages = (end - start) >> PAGE_SHIFT;
if (newflags & VM_LOCKED) {
pages = -pages;
make_pages_present(start, end);
}
vma->vm_mm->locked_vm -= pages;
}
static int mlock_fixup(struct vm_area_struct * vma,
unsigned long start, unsigned long end, unsigned int newflags)
{
int pages, retval;
if (newflags == vma->vm_flags)
return 0;
if (start == vma->vm_start) {
if (end == vma->vm_end)
retval = mlock_fixup_all(vma, newflags);
else
retval = mlock_fixup_start(vma, end, newflags);
} else {
if (end == vma->vm_end)
retval = mlock_fixup_end(vma, start, newflags);
else
retval = mlock_fixup_middle(vma, start, end, newflags);
}
if (!retval) {
/* keep track of amount of locked VM */
pages = (end - start) >> PAGE_SHIFT;
if (!(newflags & VM_LOCKED))
pages = -pages;
vma->vm_mm->locked_vm += pages;
#ifdef CONFIG_SA1100_EMPEG
if(newflags & (VM_READ | VM_WRITE | VM_EXEC))
#endif
make_pages_present(start, end);
// printk("mlock_fixup: locked_vm = %d\n", vma->vm_mm->locked_vm);
}