On Thu, Nov 19, 2020 at 02:11:33PM -0800, Walt Drummond wrote: > The macro unsafe_put_sigmask() only handles the first 64 bits of the > sigmask_t, which works today. However, if the definition of the > sigset_t structure ever changed,
... existing userland would get fucked over, since sigset_t is present in user-visible data structures. Including the ones we are using that thing for - struct rt_sigframe, for starters. Layout of those suckers is very much cast in stone. We *can't* change it, no matter what we do kernel-side. NAKed-by: Al Viro <v...@zeniv.linux.org.uk>
