Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.7 431/477] io_uring: dont fail links for EAGAIN error in IOPOLL mode | Date | Tue, 23 Jun 2020 21:57:08 +0200 |
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From: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
[ Upstream commit 2d7d67920e5c8e0854df23ca77da2dd5880ce5dd ]
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.
Cc: stable@vger.kernel.org Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- fs/io_uring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -1936,7 +1936,7 @@ static void io_complete_rw_iopoll(struct 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)
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