blk-mq: get rid of ->cmd_size in the hardware queue

[linux-2.6-block.git] / block / blk-mq.c

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 97ebb84b5633b1f86e5a21a18319b3d061729b5b..cbd2a55d69b80285f4a526b75ab0c006ed755c4f 100644 (file)
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -152,6 +152,16 @@ void blk_mq_unfreeze_queue(struct request_queue *q)
 }
 EXPORT_SYMBOL_GPL(blk_mq_unfreeze_queue);
 
+void blk_mq_wake_waiters(struct request_queue *q)
+{
+       struct blk_mq_hw_ctx *hctx;
+       unsigned int i;
+
+       queue_for_each_hw_ctx(q, hctx, i)
+               if (blk_mq_hw_queue_mapped(hctx))
+                       blk_mq_tag_wakeup_all(hctx->tags, true);
+}
+
 bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx)
 {
        return blk_mq_has_free_tags(hctx->tags);
@@ -1605,7 +1615,6 @@ static int blk_mq_init_hctx(struct request_queue *q,
        hctx->queue = q;
        hctx->queue_num = hctx_idx;
        hctx->flags = set->flags;
-       hctx->cmd_size = set->cmd_size;
 
        blk_mq_init_cpu_notifier(&hctx->cpu_notifier,
                                        blk_mq_hctx_notify, hctx);