Miklos Szeredi: > Changes since the last version: ::: > - get write ref on the upper layer on mount unless the overlay > itself is mounted read-only I think it a good approach. Although it may be harmless, write-ref will not be put when a user executes, - mount -o ro /overlay - umount /overlay It will be easy to fix by implementing s_op->remount(). > - raise capabilities for copy up, dealing with whiteouts and opaque > directories. Now the overlay works for non-root users as well Interesting approach. But is it safe? If multi-threaded ap or a signal handler share the credential, then they may gain incorrect capability. J. R. Okajima -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html