io_uring: fix logic error in io_timeout

If ctx->cached_sq_head < nxt_sq_head, we should add UINT_MAX to tmp, not
tmp_nxt.

Fixes: 5da0fb1ab34c ("io_uring: consider the overflow of sequence for timeout req")
Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index b7d4085d6ffd0979deda5043ba64a41e29cbd3c9..1d03afd743685dedf938dc938dee7ad10f2a0134 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -1949,7 +1949,7 @@ static int io_timeout(struct io_kiocb *req, const struct io_uring_sqe *sqe)
                 * once there is some timeout req still be valid.
                 */
                if (ctx->cached_sq_head < nxt_sq_head)
-                       tmp_nxt += UINT_MAX;
+                       tmp += UINT_MAX;
 
                if (tmp >= tmp_nxt)
                        break;