ceph: convert ceph_mds_session.s_ref from atomic_t to refcount_t
authorElena Reshetova <elena.reshetova@intel.com>
Fri, 3 Mar 2017 09:15:06 +0000 (11:15 +0200)
committerIlya Dryomov <idryomov@gmail.com>
Thu, 4 May 2017 07:19:18 +0000 (09:19 +0200)
commit3997c01d260ed00d712b051fdab022a08719441e
tree8040eb3b21ee55dcd9a788839a8290be8649cc1d
parentd6a3408a77807037872892c2a2034180fcc08d12
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>
fs/ceph/mds_client.c
fs/ceph/mds_client.h