Merge branch 'block-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/block

* 'block-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/block:
  [PATCH] fix rmmod problems with elevator attributes, clean them up
  [PATCH] elevator_t lifetime rules and sysfs fixes
  [PATCH] noise removal: cfq-iosched.c
  [PATCH] don't bother with refcounting for cfq_data
  [PATCH] fix sysfs interaction and lifetime rules handling for queues
  [PATCH] regularize blk_cleanup_queue() use
  [PATCH] fix cfq_get_queue()/ioprio_set(2) races
  [PATCH] deal with rmmod/put_io_context() races
  [PATCH] stop elv_unregister() from rogering other iosched's data, fix locking
  [PATCH] stop cfq from pinning queue down
  [PATCH] make cfq_exit_queue() prune the cfq_io_context for that queue
  [PATCH] fix the exclusion for ioprio_set()
  [PATCH] keep sync and async cfq_queue separate
  [PATCH] switch to use of ->key to get cfq_data by cfq_io_context
  [PATCH] stop leaking cfq_data in cfq_set_request()
  [PATCH] fix cfq hash lookups
  [PATCH] fix locking in queue_requests_store()
  [PATCH] fix double-free in blk_init_queue_node()
  [PATCH] don't do exit_io_context() until we know we won't be doing any IO

1 files changed, 6 insertions, 4 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 860e7a485a5f..56bb6a4e15f3 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -58,7 +58,7 @@ struct cfq_io_context {
          * circular list of cfq_io_contexts belonging to a process io context
          */
         struct list_head list;
-        struct cfq_queue *cfqq;
+        struct cfq_queue *cfqq[2];
         void *key;
 
         struct io_context *ioc;
@@ -69,6 +69,8 @@ struct cfq_io_context {
         unsigned long ttime_samples;
         unsigned long ttime_mean;
 
+        struct list_head queue_list;
+
         void (*dtor)(struct cfq_io_context *);
         void (*exit)(struct cfq_io_context *);
 };
@@ -404,8 +406,6 @@ struct request_queue
 
         struct blk_queue_tag    *queue_tags;
 
-        atomic_t                refcnt;
-
         unsigned int            nr_sorted;
         unsigned int            in_flight;
 
@@ -424,6 +424,8 @@ struct request_queue
         struct request          pre_flush_rq, bar_rq, post_flush_rq;
         struct request          *orig_bar_rq;
         unsigned int            bi_size;
+
+        struct mutex            sysfs_lock;
 };
 
 #define RQ_INACTIVE             (-1)
@@ -725,7 +727,7 @@ extern long nr_blockdev_pages(void);
 int blk_get_queue(request_queue_t *);
 request_queue_t *blk_alloc_queue(gfp_t);
 request_queue_t *blk_alloc_queue_node(gfp_t, int);
-#define blk_put_queue(q) blk_cleanup_queue((q))
+extern void blk_put_queue(request_queue_t *);
 
 /*
  * tag stuff