On Tue, 15 Aug 2023 at 21:51, Amir Goldstein <amir73il@xxxxxxxxx> wrote: > What I meant is, except from emergency remount rdonly and fs specific > cases like ext4 remount-ro on error, is there a way via new mount API > that users can request remount of the upper SB rdonly, despite the > fact that this sb has private writable mount clones? > even if ovl has elevated mnt_writers of upper_mnt? Private and public mounts are completely equal in this regard. So no, you can't remount rdonly if upper mnt has an elevated mnt_writers. Thanks, Miklos
