+void ovl_revert_creds(const struct cred *old_cred)Mark,
+ if (old_cred)
Not sure if you have seen my "shutdown" patches:
I am fine with this patch, but would like to request that you add @sb arg
to the ovl_revert_creds() helper, so it is more useful for other things in the
future that scope the underlying layers access (like shutdown).