block: kill request slab cache

Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/blk-core.c b/block/blk-core.c
index 45f5c58..a14dab5 100644 (file)
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -58,11 +58,6 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(block_unplug);
 DEFINE_IDA(blk_queue_ida);
 
 /*
- * For the allocated request tables
- */
-struct kmem_cache *request_cachep;
-
-/*
  * For queue allocation
  */
 struct kmem_cache *blk_requestq_cachep;
@@ -1971,9 +1966,6 @@ int __init blk_dev_init(void)
        if (!kblockd_workqueue)
                panic("Failed to create kblockd\n");
 
-       request_cachep = kmem_cache_create("blkdev_requests",
-                       sizeof(struct request), 0, SLAB_PANIC, NULL);
-
        blk_requestq_cachep = kmem_cache_create("request_queue",
                        sizeof(struct request_queue), 0, SLAB_PANIC, NULL);
 

diff --git a/block/blk.h b/block/blk.h
index e925cf4..2bf1cfe 100644 (file)
--- a/block/blk.h
+++ b/block/blk.h
@@ -32,7 +32,6 @@ struct blk_flush_queue {
 };
 
 extern struct kmem_cache *blk_requestq_cachep;
-extern struct kmem_cache *request_cachep;
 extern struct kobj_type blk_queue_ktype;
 extern struct ida blk_queue_ida;