Messages in this thread | | | From | Davidlohr Bueso <> | Subject | [PATCH 0/2] fs/epoll: restore user-visible behavior upon event ready | Date | Mon, 5 Apr 2021 16:10:23 -0700 |
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Hi,
This series tries to address a change in user visible behavior, reported in:
https://bugzilla.kernel.org/show_bug.cgi?id=208943
Epoll does not report an event to all the threads running epoll_wait() on the same epoll descriptor. Unsurprisingly, this was bisected back to 339ddb53d373 (fs/epoll: remove unnecessary wakeups of nested epoll), which has had various problems in the past, beyond only nested epoll usage.
Thanks!
Davidlohr Bueso (2): kselftest: introduce new epoll test case fs/epoll: restore waking from ep_done_scan()
fs/eventpoll.c | 6 +++ .../filesystems/epoll/epoll_wakeup_test.c | 44 +++++++++++++++++++ 2 files changed, 50 insertions(+)
-- 2.26.2
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