sbitmap: randomize initial alloc_hint values

[mirror_ubuntu-artful-kernel.git] / block / blk-mq-tag.c

diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index e1c2bedb0bf9cfdbf481bb1c20adeb291301a059..cef618f6fc92132a640b4d16720f53f9dff5f712 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"
@@ -419,13 +418,6 @@ void blk_mq_free_tags(struct blk_mq_tags *tags)
        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;