tree d2a39847438cd265d8c0dbc3c61550980753e59a
parent 140475ae4ad10d140bb69572499b1ff87367e807
author Elena Reshetova <elena.reshetova@intel.com> 1488531311 +0200
committer David Sterba <dsterba@suse.com> 1492517243 +0200

btrfs: convert btrfs_transaction.use_count 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: David Sterba <dsterba@suse.com>