X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=block%2Fblk-tag.c;h=ed5166fbc599ab0fca60955a200028ad0de8a5ae;hb=1558182f651798164418abf53f76786da0ea4a6f;hp=32667beb03eebf4d04b283f0a0cac999d66ad3e7;hpb=1da7807842f7ccd9a3962dc276e489b76cd320c7;p=pandora-kernel.git

diff --git a/block/blk-tag.c b/block/blk-tag.c
index 32667beb03ee..ed5166fbc599 100644
--- a/block/blk-tag.c
+++ b/block/blk-tag.c
@@ -38,7 +38,8 @@ static int __blk_free_tags(struct blk_queue_tag *bqt)
 
 	retval = atomic_dec_and_test(&bqt->refcnt);
 	if (retval) {
-		BUG_ON(bqt->busy);
+		BUG_ON(find_first_bit(bqt->tag_map, bqt->max_depth) <
+							bqt->max_depth);
 
 		kfree(bqt->tag_index);
 		bqt->tag_index = NULL;
@@ -147,7 +148,6 @@ static struct blk_queue_tag *__blk_queue_init_tags(struct request_queue *q,
 	if (init_tag_map(q, tags, depth))
 		goto fail;
 
-	tags->busy = 0;
 	atomic_set(&tags->refcnt, 1);
 	return tags;
 fail:
@@ -313,7 +313,6 @@ void blk_queue_end_tag(struct request_queue *q, struct request *rq)
 	 * unlock memory barrier semantics.
 	 */
 	clear_bit_unlock(tag, bqt->tag_map);
-	bqt->busy--;
 }
 EXPORT_SYMBOL(blk_queue_end_tag);
 
@@ -368,7 +367,6 @@ int blk_queue_start_tag(struct request_queue *q, struct request *rq)
 	bqt->tag_index[tag] = rq;
 	blkdev_dequeue_request(rq);
 	list_add(&rq->queuelist, &q->tag_busy_list);
-	bqt->busy++;
 	return 0;
 }
 EXPORT_SYMBOL(blk_queue_start_tag);