mlock_future_ok
bool mlock_future_ok(const struct mm_struct *mm, bool is_vma_locked,
return mlock_future_ok(current->mm,
if (!mlock_future_ok(mm, vm_flags & VM_LOCKED, len))
if (!mlock_future_ok(mm, vma->vm_flags & VM_LOCKED, vrm->delta))
if (!mlock_future_ok(desc->mm, /*is_vma_locked=*/ true, len))
if (!mlock_future_ok(mm, vma->vm_flags & VM_LOCKED, grow << PAGE_SHIFT))