On Mon, Oct 31, 2022 at 10:39:33PM -0700, Nadav Amit wrote: > On Oct 30, 2022, at 2:30 PM, Peter Xu <peterx@xxxxxxxxxx> wrote: > > > + /* With vma lock held, safe without RCU */ > > src_pte = huge_pte_offset(src, addr, sz); > > Just another option to consider: you can create an inline function > huge_pte_offset_locked_mm(), which would do the lockdep_assert_held_*(). > > I personally would prefer it, since it would clarify exactly the lock you > care about and "make the code document itself”. That's a great suggestion, I'll give it a shot in the next version. Thanks! -- Peter Xu