* [PATCH liburing 1/2] io_uring: test IORING_TIMEOUT_ETIME_SUCCESS
2021-10-03 11:10 [PATCH liburing 0/2] timeout tests Pavel Begunkov
@ 2021-10-03 11:10 ` Pavel Begunkov
2021-10-03 11:11 ` [PATCH liburing 2/2] io_uring: fix SQPOLL timeout-new test Pavel Begunkov
2021-10-03 13:07 ` [PATCH liburing 0/2] timeout tests Jens Axboe
2 siblings, 0 replies; 4+ messages in thread
From: Pavel Begunkov @ 2021-10-03 11:10 UTC (permalink / raw)
To: io-uring; +Cc: Jens Axboe, asml.silence
Make sure we don't fail links on ETIME when IORING_TIMEOUT_ETIME_SUCCESS
is set.
Signed-off-by: Pavel Begunkov <[email protected]>
---
src/include/liburing/io_uring.h | 1 +
test/timeout.c | 67 +++++++++++++++++++++++++++++++++
2 files changed, 68 insertions(+)
diff --git a/src/include/liburing/io_uring.h b/src/include/liburing/io_uring.h
index 7aa43fc..61683bd 100644
--- a/src/include/liburing/io_uring.h
+++ b/src/include/liburing/io_uring.h
@@ -162,6 +162,7 @@ enum {
#define IORING_TIMEOUT_BOOTTIME (1U << 2)
#define IORING_TIMEOUT_REALTIME (1U << 3)
#define IORING_LINK_TIMEOUT_UPDATE (1U << 4)
+#define IORING_TIMEOUT_ETIME_SUCCESS (1U << 5)
#define IORING_TIMEOUT_CLOCK_MASK (IORING_TIMEOUT_BOOTTIME | IORING_TIMEOUT_REALTIME)
#define IORING_TIMEOUT_UPDATE_MASK (IORING_TIMEOUT_UPDATE | IORING_LINK_TIMEOUT_UPDATE)
/*
diff --git a/test/timeout.c b/test/timeout.c
index 775063f..f8ba973 100644
--- a/test/timeout.c
+++ b/test/timeout.c
@@ -1267,6 +1267,67 @@ static int test_timeout_link_cancel(void)
return 0;
}
+
+static int test_not_failing_links(void)
+{
+ struct io_uring ring;
+ struct io_uring_sqe *sqe;
+ struct io_uring_cqe *cqe;
+ struct __kernel_timespec ts;
+ int ret;
+
+ ret = io_uring_queue_init(8, &ring, 0);
+ if (ret) {
+ fprintf(stderr, "ring create failed: %d\n", ret);
+ return 1;
+ }
+
+ msec_to_ts(&ts, 1);
+ sqe = io_uring_get_sqe(&ring);
+ io_uring_prep_timeout(sqe, &ts, 0, IORING_TIMEOUT_ETIME_SUCCESS);
+ sqe->user_data = 1;
+ sqe->flags |= IOSQE_IO_LINK;
+
+ sqe = io_uring_get_sqe(&ring);
+ io_uring_prep_nop(sqe);
+ sqe->user_data = 2;
+
+ ret = io_uring_submit(&ring);
+ if (ret != 2) {
+ fprintf(stderr, "%s: sqe submit failed: %d\n", __FUNCTION__, ret);
+ return 1;
+ }
+
+ ret = io_uring_wait_cqe(&ring, &cqe);
+ if (ret < 0) {
+ fprintf(stderr, "%s: wait completion %d\n", __FUNCTION__, ret);
+ return 1;
+ } else if (cqe->user_data == 1 && cqe->res == -EINVAL) {
+ fprintf(stderr, "ETIME_SUCCESS is not supported, skip\n");
+ goto done;
+ } else if (cqe->res != -ETIME || cqe->user_data != 1) {
+ fprintf(stderr, "timeout failed %i %i\n", cqe->res,
+ (int)cqe->user_data);
+ return 1;
+ }
+ io_uring_cqe_seen(&ring, cqe);
+
+ ret = io_uring_wait_cqe(&ring, &cqe);
+ if (ret < 0) {
+ fprintf(stderr, "%s: wait completion %d\n", __FUNCTION__, ret);
+ return 1;
+ } else if (cqe->res || cqe->user_data != 2) {
+ fprintf(stderr, "nop failed %i %i\n", cqe->res,
+ (int)cqe->user_data);
+ return 1;
+ }
+done:
+ io_uring_cqe_seen(&ring, cqe);
+ io_uring_queue_exit(&ring);
+ return 0;
+}
+
+
int main(int argc, char *argv[])
{
struct io_uring ring, sqpoll_ring;
@@ -1450,6 +1511,12 @@ int main(int argc, char *argv[])
return ret;
}
+ ret = test_not_failing_links();
+ if (ret) {
+ fprintf(stderr, "test_not_failing_links failed\n");
+ return ret;
+ }
+
if (sqpoll)
io_uring_queue_exit(&sqpoll_ring);
return 0;
--
2.33.0
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH liburing 2/2] io_uring: fix SQPOLL timeout-new test
2021-10-03 11:10 [PATCH liburing 0/2] timeout tests Pavel Begunkov
2021-10-03 11:10 ` [PATCH liburing 1/2] io_uring: test IORING_TIMEOUT_ETIME_SUCCESS Pavel Begunkov
@ 2021-10-03 11:11 ` Pavel Begunkov
2021-10-03 13:07 ` [PATCH liburing 0/2] timeout tests Jens Axboe
2 siblings, 0 replies; 4+ messages in thread
From: Pavel Begunkov @ 2021-10-03 11:11 UTC (permalink / raw)
To: io-uring; +Cc: Jens Axboe, asml.silence
Happens pretty rarely, but there were cases when CQE waitinig in
test_return_before_timeout() time outs before the SQPOLL thread kicks in
and executes submitted requests, give SQPOLL a little bit more time.
Signed-off-by: Pavel Begunkov <[email protected]>
---
test/timeout-new.c | 22 ++++++++++++++--------
1 file changed, 14 insertions(+), 8 deletions(-)
diff --git a/test/timeout-new.c b/test/timeout-new.c
index 19c5ac3..6efcfb4 100644
--- a/test/timeout-new.c
+++ b/test/timeout-new.c
@@ -53,14 +53,12 @@ static int test_return_before_timeout(struct io_uring *ring)
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
int ret;
+ bool retried = false;
struct __kernel_timespec ts;
- sqe = io_uring_get_sqe(ring);
- if (!sqe) {
- fprintf(stderr, "%s: get sqe failed\n", __FUNCTION__);
- return 1;
- }
+ msec_to_ts(&ts, TIMEOUT_MSEC);
+ sqe = io_uring_get_sqe(ring);
io_uring_prep_nop(sqe);
ret = io_uring_submit(ring);
@@ -69,13 +67,21 @@ static int test_return_before_timeout(struct io_uring *ring)
return 1;
}
- msec_to_ts(&ts, TIMEOUT_MSEC);
+again:
ret = io_uring_wait_cqe_timeout(ring, &cqe, &ts);
- if (ret < 0) {
+ if (ret == -ETIME && (ring->flags & IORING_SETUP_SQPOLL) && !retried) {
+ /*
+ * there is a small chance SQPOLL hasn't been waked up yet,
+ * give it one more try.
+ */
+ printf("warning: funky SQPOLL timing\n");
+ sleep(1);
+ retried = true;
+ goto again;
+ } else if (ret < 0) {
fprintf(stderr, "%s: timeout error: %d\n", __FUNCTION__, ret);
return 1;
}
-
io_uring_cqe_seen(ring, cqe);
return 0;
}
--
2.33.0
^ permalink raw reply related [flat|nested] 4+ messages in thread