On Thu, 8 Aug 2019 15:18:26 +0800 Chuhong Yuan <hslester96@xxxxxxxxx> wrote: > Reference counters are preferred to use refcount_t instead of > atomic_t. > This is because the implementation of refcount_t can prevent > overflows and detect possible use-after-free. > So convert atomic_t ref counters to refcount_t. > > Signed-off-by: Chuhong Yuan <hslester96@xxxxxxxxx> > --- > arch/s390/include/asm/gmap.h | 4 +++- > arch/s390/mm/gmap.c | 10 +++++----- > 2 files changed, 8 insertions(+), 6 deletions(-) Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>