Commits
![Ming Lei](https://secure.gravatar.com/avatar/f5fc6facc7ffba87ca09c8b7341c2f20.jpg?s=96&d=mm)
Ming Lei committed 6c71013ecb7
block: partition: convert percpu ref Percpu refcount is the perfect match for partition's case, and the conversion is quite straight. With the convertion, one pair of atomic inc/dec can be saved for accounting block I/O, which is run in hot path of block I/O. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@fb.com>