tree 8040eb3b21ee55dcd9a788839a8290be8649cc1d
parent d6a3408a77807037872892c2a2034180fcc08d12
author Elena Reshetova <elena.reshetova@intel.com> 1488532506 +0200
committer Ilya Dryomov <idryomov@gmail.com> 1493882358 +0200

ceph: convert ceph_mds_session.s_ref from atomic_t to refcount_t

refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.

Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>