On Wed, Jun 28, 2023 at 12:17:57AM -0700, Suren Baghdasaryan wrote: > handle_mm_fault returning VM_FAULT_RETRY or VM_FAULT_COMPLETED means > mmap_lock has been released. However with per-VMA locks behavior is > different and the caller should still release it. To make the > rules consistent for the caller, drop the per-VMA lock when returning > VM_FAULT_RETRY or VM_FAULT_COMPLETED. Currently the only path returning > VM_FAULT_RETRY under per-VMA locks is do_swap_page and no path returns > VM_FAULT_COMPLETED for now. > > Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx> Acked-by: Peter Xu <peterx@xxxxxxxxxx> -- Peter Xu
