Subject: Re: linux-next: Tree for March 11 (block/mm/fs)

From: Jens Axboe <[email-masked]>
Date: Fri, 11 Mar 2011 20:18:48 +0100

On 2011-03-11 18:53, Randy Dunlap wrote:
> On Fri, 11 Mar 2011 18:41:15 +1100 Stephen Rothwell wrote:
> 
>> Hi all,
>>
>> Changes since 20110310:
>>
>> The block tree lost its build failure but gained another for which I
>> applied a patch.
> 
> 
> When CONFIG_BLOCK is not enabled:
> 
> mm/filemap.c:1257: error: storage size of 'plug' isn't known
> mm/filemap.c:2450: error: storage size of 'plug' isn't known
> mm/readahead.c:112: error: storage size of 'plug' isn't known
> fs/aio.c:1625: error: storage size of 'plug' isn't known

Thanks Randy, I fixed it up.

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 91fa428..16a902f 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1297,15 +1297,18 @@ static inline long nr_blockdev_pages(void)
 	return 0;
 }
 
-static inline void blk_start_plug(struct list_head *list)
+struct blk_plug {
+};
+
+static inline void blk_start_plug(struct blk_plug *plug)
 {
 }
 
-static inline void blk_finish_plug(struct list_head *list)
+static inline void blk_finish_plug(struct blk_plug *plug)
 {
 }
 
-static inline void blk_flush_plug(struct task_struct *tsk)
+static inline void blk_flush_plug(struct task_struct *task)
 {
 }

-- 
Jens Axboe