On Wed, Jul 29, 2020 at 01:11:20PM +0200, pet...@infradead.org wrote: > Subject: locking/refcount: Provide __refcount API to obtain the old value > From: Peter Zijlstra <pet...@infradead.org> > Date: Wed Jul 29 13:00:57 CEST 2020 > > David requested means to obtain the old/previous value from the > refcount API for tracing purposes. > > Duplicate (most of) the API as __refcount*() with an additional > 'int *' argument into which, if !NULL, the old value will be stored. > > Requested-by: David Howells <dhowe...@redhat.com> > Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
This looks good to me. Thanks for poking at it! Reviewed-by: Kees Cook <keesc...@chromium.org> -- Kees Cook
