Subject: [PATCH v2 2/2] tun: update file current position

From: Zhi Yong Wu <[email-masked]>
Date: Fri, 6 Dec 2013 17:08:50 +0800

From: Zhi Yong Wu <[email-masked]>

Signed-off-by: Zhi Yong Wu <[email-masked]>
---
 drivers/net/tun.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 782e38b..c8ddbd0 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1356,6 +1356,8 @@ static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv,
 	ret = tun_do_read(tun, tfile, iocb, iv, len,
 			  file->f_flags & O_NONBLOCK);
 	ret = min_t(ssize_t, ret, len);
+	if (ret > 0)
+		iocb->ki_pos += ret;
 out:
 	tun_put(tun);
 	return ret;
-- 
1.7.6.5