From: Dylan Yudaken <[email protected]>
To: <[email protected]>, <[email protected]>
Cc: <[email protected]>, <[email protected]>,
Dylan Yudaken <[email protected]>
Subject: [PATCH liburing v3 00/11] Defer taskrun changes
Date: Mon, 5 Sep 2022 06:22:47 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
This series adds support to liburing for the IORING_SETUP_DEFER_TASKRUN flag.
This flag needs a couple of new API calls to force a call to get events for
users that are polling the io_uring fd (or a registered eventfd).
The second half of the series is a bit mixed and includes some documentation
fixes, overflow cleanups and test cleanups. I sent these a couple of months
ago and forgot about it, but now it does depend on the new API so it needs to
be ordered.
I can send it separately if you like.
Patches:
1 copies the definition from the kernel include file
2 introduces new APIs required for this feature
3/4/5 add tests for IORING_SETUP_DEFER_TASKRUN
6/7/8 clean and update existing documentation to match upstream
9 exposes the overflow state to the application
10 uses this and tests overflow functionality
11 gives an explicit warning if there is a short read in file-verify
Changes since v2:
- Add documentation and .map file for new API
- remove shutdown test
Changes since v1:
- update tests to require IORING_SETUP_SINGLE_ISSUER
- add docs for IORING_SETUP_DEFER_TASKRUN
- add shutdown test
Dylan Yudaken (11):
Copy defer task run definition from kernel
Add documentation for IORING_SETUP_DEFER_TASKRUN flag
add io_uring_submit_and_get_events and io_uring_get_events
add a t_probe_defer_taskrun helper function for tests
update existing tests for defer taskrun
add a defer-taskrun test
update io_uring_enter.2 docs for IORING_FEAT_NODROP
add docs for overflow lost errors
expose CQ ring overflow state
overflow: add tests
file-verify test: log if short read
man/io_uring_cq_has_overflow.3 | 25 ++
man/io_uring_enter.2 | 24 +-
man/io_uring_get_events.3 | 33 +++
man/io_uring_setup.2 | 30 ++-
man/io_uring_submit_and_get_events.3 | 31 +++
src/include/liburing.h | 12 +
src/include/liburing/io_uring.h | 7 +
src/liburing.map | 2 +
src/queue.c | 26 ++-
test/Makefile | 1 +
test/cq-overflow.c | 243 ++++++++++++++++++-
test/defer-taskrun.c | 333 +++++++++++++++++++++++++++
test/eventfd-disable.c | 33 ++-
test/file-verify.c | 4 +
test/helpers.c | 17 +-
test/helpers.h | 2 +
test/iopoll.c | 17 +-
test/multicqes_drain.c | 50 +++-
test/poll-mshot-overflow.c | 40 +++-
test/recv-multishot.c | 33 ++-
test/rsrc_tags.c | 10 +-
21 files changed, 922 insertions(+), 51 deletions(-)
create mode 100644 man/io_uring_cq_has_overflow.3
create mode 100644 man/io_uring_get_events.3
create mode 100644 man/io_uring_submit_and_get_events.3
create mode 100644 test/defer-taskrun.c
base-commit: 3bd7d6b27e6b7d7950bba1491bc9c385378fe4dd
--
2.30.2
next reply other threads:[~2022-09-05 13:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-05 13:22 Dylan Yudaken [this message]
2022-09-05 13:22 ` [PATCH liburing v3 01/11] Copy defer task run definition from kernel Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 02/11] Add documentation for IORING_SETUP_DEFER_TASKRUN flag Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 03/11] add io_uring_submit_and_get_events and io_uring_get_events Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 04/11] add a t_probe_defer_taskrun helper function for tests Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 05/11] update existing tests for defer taskrun Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 06/11] add a defer-taskrun test Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 07/11] update io_uring_enter.2 docs for IORING_FEAT_NODROP Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 08/11] add docs for overflow lost errors Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 09/11] expose CQ ring overflow state Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 10/11] overflow: add tests Dylan Yudaken
2022-09-05 13:22 ` [PATCH liburing v3 11/11] file-verify test: log if short read Dylan Yudaken
2022-09-05 13:45 ` [PATCH liburing v3 00/11] Defer taskrun changes Ammar Faizi
2022-09-05 17:42 ` Jens Axboe
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