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authoryangerkun <yangerkun@huawei.com>2019-10-17 07:12:35 +0300
committerJens Axboe <axboe@kernel.dk>2019-10-18 00:49:15 +0300
commit8b07a65ad30e5612d9590fb50468ff4fa314cfc7 (patch)
tree38025726981ad1b8566e292533e580dafded9132 /fs
parent491381ce07ca57f68c49c79a8a43da5b60749e32 (diff)
downloadlinux-8b07a65ad30e5612d9590fb50468ff4fa314cfc7.tar.xz
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>
Diffstat (limited to 'fs')
-rw-r--r--fs/io_uring.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index b7d4085d6ffd..1d03afd74368 100644
--- 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;