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    SubjectRE: [Xen-devel] [PATCH 29/29] drivers, xen: convert grant_map.users from atomic_t to refcount_t
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    > On 03/06/2017 09:21 AM, Elena Reshetova wrote:
    > > 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>
    > > ---
    > > drivers/xen/gntdev.c | 11 ++++++-----
    > > 1 file changed, 6 insertions(+), 5 deletions(-)
    >
    > Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

    Is there a tree that can take this change? Turns out it is better to propagate changes via separate trees and only leftovers can be taken via Greg's tree.

    Best Regards,
    Elena.

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