[PATCH] aio: kill pointless ki_nbytes assignment in aio_setup_single_vector
Chen, Kenneth W [Thu, 7 Dec 2006 04:40:43 +0000 (20:40 -0800)]
io_submit_one assigns ki_left = ki_nbytes = iocb->aio_nbytes, then calls
down to aio_setup_iocb, then to aio_setup_single_vector.  In there,
ki_nbytes is reassigned to the same value it got two call stack above it.
There is no need to do so.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Acked-by: Zach Brown <zach.brown@oracle.com>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/aio.c

index 13aa929..f02ad26 100644 (file)
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1413,7 +1413,6 @@ static ssize_t aio_setup_single_vector(struct kiocb *kiocb)
        kiocb->ki_iovec->iov_len = kiocb->ki_left;
        kiocb->ki_nr_segs = 1;
        kiocb->ki_cur_seg = 0;
-       kiocb->ki_nbytes = kiocb->ki_left;
        return 0;
 }