aio: remove unused field

Don't know the reason, but it appears ki_wait field of iocb never gets used.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 4 deletions

diff --git a/include/linux/aio.h b/include/linux/aio.h
index aea219d7d8d1..811dbb369379 100644
--- a/include/linux/aio.h
+++ b/include/linux/aio.h
@@ -102,7 +102,6 @@ struct kiocb {
         } ki_obj;
 
         __u64                   ki_user_data;   /* user's data for completion */
-        wait_queue_t            ki_wait;
         loff_t                  ki_pos;
 
         void                    *private;
@@ -140,7 +139,6 @@ struct kiocb {
                 (x)->ki_dtor = NULL;                    \
                 (x)->ki_obj.tsk = tsk;                  \
                 (x)->ki_user_data = 0;                  \
-                init_wait((&(x)->ki_wait));             \
         } while (0)
 
 #define AIO_RING_MAGIC                  0xa10a10a1
@@ -223,8 +221,6 @@ struct mm_struct;
 static inline void exit_aio(struct mm_struct *mm) { }
 #endif /* CONFIG_AIO */
 
-#define io_wait_to_kiocb(wait) container_of(wait, struct kiocb, ki_wait)
-
 static inline struct kiocb *list_kiocb(struct list_head *h)
 {
         return list_entry(h, struct kiocb, ki_list);