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Jens Axboe a2d8ff00a7 eventpoll: add EPOLL_URING_WAKE poll wakeup flag ... [ Upstream commit caf1aeaffc ] We can have dependencies between epoll and io_uring. Consider an epoll context, identified by the epfd file descriptor, and an io_uring file descriptor identified by iofd. If we add iofd to the epfd context, and arm a multishot poll request for epfd with iofd, then the multishot poll request will repeatedly trigger and generate events until terminated by CQ ring overflow. This isn't a desired behavior. Add EPOLL_URING so that io_uring can pass it in as part of the poll wakeup key, and io_uring can check for that to detect a potential recursive invocation. Cc: stable@vger.kernel.org # 6.0 Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2023-01-24 07:22:43 +01:00
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asm-generic	signal: Deliver SIGTRAP on perf event asynchronously if blocked	2022-06-09 10:22:48 +02:00
drm	drm/fourcc: Add packed 10bit YUV 4:2:0 format	2022-12-31 13:14:10 +01:00
linux	eventpoll: add EPOLL_URING_WAKE poll wakeup flag	2023-01-24 07:22:43 +01:00
misc	habanalabs: fix resetting args in wait for CS IOCTL	2021-09-29 12:18:48 +03:00
mtd	mtd: add OTP (one-time-programmable) erase ioctl	2021-03-28 19:24:54 +02:00
rdma	RDMA/mlx5: Don't compare mkey tags in DEVX indirect mkey	2022-10-26 12:35:03 +02:00
scsi	scsi: fc: Add EDC ELS definition	2021-08-24 22:56:33 -04:00
sound	ALSA: seq: fix undefined behavior in bit shift for SNDRV_SEQ_FILTER_USE_EVENT	2022-12-31 13:14:11 +01:00
video	License cleanup: add SPDX license identifier to uapi header files with a license	2017-11-02 11:20:11 +01:00
xen	xen/gntdev: gntdev.h: drop a duplicated word	2020-08-03 07:46:42 +02:00
Kbuild	kbuild: re-implement Makefile.headersinst without recursion	2019-06-15 19:57:02 +09:00