Merge tag 'drm-fixes-for-v4.9-rc2' of git://people.freedesktop.org/~airlied/linux

[cascardo/linux.git] / block / blk-mq-tag.c

diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index e1c2bed..dcf5ce3 100644 (file)
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -7,7 +7,6 @@
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/random.h>
 
 #include <linux/blk-mq.h>
 #include "blk.h"
@@ -142,8 +141,7 @@ static int bt_get(struct blk_mq_alloc_data *data, struct sbitmap_queue *bt,
                io_schedule();
 
                data->ctx = blk_mq_get_ctx(data->q);
-               data->hctx = data->q->mq_ops->map_queue(data->q,
-                               data->ctx->cpu);
+               data->hctx = blk_mq_map_queue(data->q, data->ctx->cpu);
                if (data->flags & BLK_MQ_REQ_RESERVED) {
                        bt = &data->hctx->tags->breserved_tags;
                } else {
@@ -400,11 +398,6 @@ struct blk_mq_tags *blk_mq_init_tags(unsigned int total_tags,
        if (!tags)
                return NULL;
 
-       if (!zalloc_cpumask_var(&tags->cpumask, GFP_KERNEL)) {
-               kfree(tags);
-               return NULL;
-       }
-
        tags->nr_tags = total_tags;
        tags->nr_reserved_tags = reserved_tags;
 
@@ -415,17 +408,9 @@ void blk_mq_free_tags(struct blk_mq_tags *tags)
 {
        sbitmap_queue_free(&tags->bitmap_tags);
        sbitmap_queue_free(&tags->breserved_tags);
-       free_cpumask_var(tags->cpumask);
        kfree(tags);
 }
 
-void blk_mq_tag_init_last_tag(struct blk_mq_tags *tags, unsigned int *tag)
-{
-       unsigned int depth = tags->nr_tags - tags->nr_reserved_tags;
-
-       *tag = prandom_u32() % depth;
-}
-
 int blk_mq_tag_update_depth(struct blk_mq_tags *tags, unsigned int tdepth)
 {
        tdepth -= tags->nr_reserved_tags;
@@ -461,7 +446,7 @@ u32 blk_mq_unique_tag(struct request *rq)
        int hwq = 0;
 
        if (q->mq_ops) {
-               hctx = q->mq_ops->map_queue(q, rq->mq_ctx->cpu);
+               hctx = blk_mq_map_queue(q, rq->mq_ctx->cpu);
                hwq = hctx->queue_num;
        }