On 16/04/2021 01:22, Pavel Begunkov wrote: > Late catched 5.12 bug with nasty hangs. Thanks Jens for a reproducer. 1/2 is basically a rip off of one of old Jens' patches, but can't find it anywhere. If you still have it, especially if it was reviewed/etc., may make sense to go with it instead > > Pavel Begunkov (2): > percpu_ref: add percpu_ref_atomic_count() > io_uring: fix shared sqpoll cancellation hangs > > fs/io_uring.c | 5 +++-- > include/linux/percpu-refcount.h | 1 + > lib/percpu-refcount.c | 26 ++++++++++++++++++++++++++ > 3 files changed, 30 insertions(+), 2 deletions(-) > -- Pavel Begunkov
