struct vm_area_struct *vmacache_find_exact(struct mm_struct *mm,
unsigned long start,
unsigned long end)
{
int i;
if (!vmacache_valid(mm))
return NULL;
for (i = 0; i < VMACACHE_SIZE; i++) {
struct vm_area_struct *vma = current->vmacache[i];
if (vma && vma->vm_start == start && vma->vm_end == end)
return vma;
}
return NULL;
}
struct vm_area_struct *vmacache_find(struct mm_struct *mm, unsigned long addr)
{
int i;
if (!vmacache_valid(mm))
return NULL;
for (i = 0; i < VMACACHE_SIZE; i++) {
struct vm_area_struct *vma = current->vmacache[i];
if (vma && vma->vm_start <= addr && vma->vm_end > addr) {
BUG_ON(vma->vm_mm != mm);
return vma;
}
}
return NULL;
}
struct vm_area_struct *vmacache_find(struct mm_struct *mm, unsigned long addr)
{
int i;
if (!vmacache_valid(mm))
return NULL;
for (i = 0; i < VMACACHE_SIZE; i++) {
struct vm_area_struct *vma = current->vmacache[i];
if (!vma)
continue;
if (WARN_ON_ONCE(vma->vm_mm != mm))
break;
if (vma->vm_start <= addr && vma->vm_end > addr)
return vma;
}
return NULL;
}
