drm/meson: Add AFBCD module driver

[linux.git] / block / blk-rq-qos.h

diff --git a/block/blk-rq-qos.h b/block/blk-rq-qos.h
index 08a09dbe0f4bfb39eb60f543f2e00e15fb72ab86..2bc43e94f4c407582087e328d892f0c5d1e4da86 100644 (file)
--- a/block/blk-rq-qos.h
+++ b/block/blk-rq-qos.h
@@ -108,16 +108,13 @@ static inline void rq_qos_add(struct request_queue *q, struct rq_qos *rqos)
 
 static inline void rq_qos_del(struct request_queue *q, struct rq_qos *rqos)
 {
-       struct rq_qos *cur, *prev = NULL;
-       for (cur = q->rq_qos; cur; cur = cur->next) {
-               if (cur == rqos) {
-                       if (prev)
-                               prev->next = rqos->next;
-                       else
-                               q->rq_qos = cur;
+       struct rq_qos **cur;
+
+       for (cur = &q->rq_qos; *cur; cur = &(*cur)->next) {
+               if (*cur == rqos) {
+                       *cur = rqos->next;
                        break;
                }
-               prev = cur;
        }
 
        blk_mq_debugfs_unregister_rqos(rqos);
@@ -130,8 +127,8 @@ void rq_qos_wait(struct rq_wait *rqw, void *private_data,
                 acquire_inflight_cb_t *acquire_inflight_cb,
                 cleanup_cb_t *cleanup_cb);
 bool rq_wait_inc_below(struct rq_wait *rq_wait, unsigned int limit);
-void rq_depth_scale_up(struct rq_depth *rqd);
-void rq_depth_scale_down(struct rq_depth *rqd, bool hard_throttle);
+bool rq_depth_scale_up(struct rq_depth *rqd);
+bool rq_depth_scale_down(struct rq_depth *rqd, bool hard_throttle);
 bool rq_depth_calc_max_depth(struct rq_depth *rqd);
 
 void __rq_qos_cleanup(struct rq_qos *rqos, struct bio *bio);