Re: [PATCH 0/4] sqpoll fixes

[Jens Axboe <axboe@kernel.dk>]

On 3/11/21 4:29 PM, Pavel Begunkov wrote:
> 1-3 are relatively easy. 2/3 is rather a cleanup, but it's better to
> throw it out of the equation, makes life easier.
> 
> 4/4 removes the park/unpark dance for cancellations, and fixes a couple
> of issues (will send one test later).
> Signals in io_sq_thread() add troubles adding more cases to think about
> and care about races b/w dying SQPOLL task, dying ctxs and going away
> userspace tasks.
> 
> Pavel Begunkov (4):
>   io_uring: cancel deferred requests in try_cancel
>   io_uring: remove useless ->startup completion
>   io_uring: prevent racy sqd->thread checks
>   io_uring: cancel sqpoll via task_work
> 
>  fs/io_uring.c | 195 +++++++++++++++++++++++++-------------------------
>  1 file changed, 99 insertions(+), 96 deletions(-)

Added for 5.12, thanks.

-- 
Jens Axboe