diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-04-21 11:39:21 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-21 11:39:28 +0200 |
| commit | 42ac9e87fdd89b77fa2ca0a5226023c1c2d83226 (patch) | |
| tree | dfdb1b720347a40f24a89a3e9c2727ae26ad5f01 /include/linux/blkdev.h | |
| parent | 057f3fadb347e9c51b07e1b277bbdda79f976768 (diff) | |
| parent | f0e615c3cb72b42191b558c130409335812621d8 (diff) | |
Merge commit 'v2.6.39-rc4' into sched/core
Merge reason: Pick up upstream fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 32176cc8e71..cbbfd98ad4a 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -697,7 +697,7 @@ extern void blk_start_queue(struct request_queue *q); extern void blk_stop_queue(struct request_queue *q); extern void blk_sync_queue(struct request_queue *q); extern void __blk_stop_queue(struct request_queue *q); -extern void __blk_run_queue(struct request_queue *q, bool force_kblockd); +extern void __blk_run_queue(struct request_queue *q); extern void blk_run_queue(struct request_queue *); extern int blk_rq_map_user(struct request_queue *, struct request *, struct rq_map_data *, void __user *, unsigned long, @@ -857,26 +857,39 @@ extern void blk_put_queue(struct request_queue *); struct blk_plug { unsigned long magic; struct list_head list; + struct list_head cb_list; unsigned int should_sort; }; +struct blk_plug_cb { + struct list_head list; + void (*callback)(struct blk_plug_cb *); +}; extern void blk_start_plug(struct blk_plug *); extern void blk_finish_plug(struct blk_plug *); -extern void __blk_flush_plug(struct task_struct *, struct blk_plug *); +extern void blk_flush_plug_list(struct blk_plug *, bool); static inline void blk_flush_plug(struct task_struct *tsk) { struct blk_plug *plug = tsk->plug; - if (unlikely(plug)) - __blk_flush_plug(tsk, plug); + if (plug) + blk_flush_plug_list(plug, false); +} + +static inline void blk_schedule_flush_plug(struct task_struct *tsk) +{ + struct blk_plug *plug = tsk->plug; + + if (plug) + blk_flush_plug_list(plug, true); } static inline bool blk_needs_flush_plug(struct task_struct *tsk) { struct blk_plug *plug = tsk->plug; - return plug && !list_empty(&plug->list); + return plug && (!list_empty(&plug->list) || !list_empty(&plug->cb_list)); } /* @@ -1314,6 +1327,11 @@ static inline void blk_flush_plug(struct task_struct *task) { } +static inline void blk_schedule_flush_plug(struct task_struct *task) +{ +} + + static inline bool blk_needs_flush_plug(struct task_struct *tsk) { return false; |