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io_uring/poll: remove outdated comments of caching

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Previous commit 13a99017ff19 ("io_uring: remove events caching
atavisms") entirely removes the events caching optimization introduced
by commit 81459350d581 ("io_uring: cache req->apoll->events in
req->cflags"). Hence the related comment should also be removed to avoid
misunderstanding.

Fixes: 13a99017ff19 ("io_uring: remove events caching atavisms")
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Link: https://lore.kernel.org/r/20221110060313.16303-1-linma@zju.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Lin Ma 2022-11-10 14:03:13 +08:00 committed by Jens Axboe
parent e2ad599d1e
commit cd42a53d25
1 changed files with 1 additions and 6 deletions
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7
io_uring/poll.c
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@ -324,12 +324,7 @@ static void io_apoll_task_func(struct io_kiocb *req, bool *locked)
static void __io_poll_execute(struct io_kiocb *req, int mask)
{
io_req_set_res(req, mask, 0);
/*
* This is useful for poll that is armed on behalf of another
* request, and where the wakeup path could be on a different
* CPU. We want to avoid pulling in req->apoll->events for that
* case.
*/
if (req->opcode == IORING_OP_POLL_ADD)
req->io_task_work.func = io_poll_task_func;
else