Commits
Geliang Tang committed 6e333d0be34
dm bio prison: use rb_entry() rather than container_of() To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Acked-by: Coly Li <colyli@suse.de> Signed-off-by: Mike Snitzer <snitzer@redhat.com>