[PATCH 1/2] io_uring: don't fail links for EAGAIN error in IOPOLL mode

Xiaoguang Wang
2020-06-15T09:25:07Z

In IOPOLL mode, for EAGAIN error, we'll try to submit io request
again using io-wq, so don't fail rest of links if this io request
has links.

Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
---
fs/io_uring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 61fca5afaac8..a3119fecfe40 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1974,7 +1974,7 @@ static void io_complete_rw_iopoll(struct kiocb *kiocb, long res, long res2)
if (kiocb->ki_flags & IOCB_WRITE)
kiocb_end_write(req);

- if (res != req->result)
+ if (res != -EAGAIN && res != req->result)
req_set_fail_links(req);
req->result = res;
if (res != -EAGAIN)
--
2.17.2