[PATCH] direct_io mopup

Some cleanup from the surprise direct-to-bio for O_DIRECT merge.

- Remove bits and pieces from the kiobuf implementation

- Replace the waitqueue in struct dio with just a task_struct pointer
  and use wake_up_process.  (Ben).

- Only take mmap_sem around the individual calls to get_user_pages().
   (It pins the vmas, yes?)

- Remove some debug code.

- Fix JFS.

1 files changed, 0 insertions, 5 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2ac85b8e28a3..84413138923e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -274,7 +274,6 @@ struct iattr {
  */
 struct page;
 struct address_space;
-struct kiobuf;
 
 struct address_space_operations {
 	int (*writepage)(struct page *);
@@ -493,10 +492,6 @@ struct file {
 
 	/* needed for tty driver, and maybe others */
 	void			*private_data;
-
-	/* preallocated helper kiobuf to speedup O_DIRECT */
-	struct kiobuf		*f_iobuf;
-	long			f_iobuf_lock;
 };
 extern spinlock_t files_lock;
 #define file_list_lock() spin_lock(&files_lock);