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io_uring/timeout: fix multishot updates

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commit c83c846231 upstream.

After update only the first shot of a multishot timeout request adheres
to the new timeout value while all subsequent retries continue to use
the old value. Don't forget to update the timeout stored in struct
io_timeout_data.

Cc: stable@vger.kernel.org
Fixes: ea97f6c855 ("io_uring: add support for multishot timeouts")
Reported-by: Christian Mazakas <christian.mazakas@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/e6516c3304eb654ec234cfa65c88a9579861e597.1736015288.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pavel Begunkov
2025-01-04 18:29:02 +00:00
committed by Greg Kroah-Hartman
parent 3ce08bab01
commit e3ed5a14aa
1 changed files with 3 additions and 1 deletions
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4
io_uring/timeout.c
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@@ -413,10 +413,12 @@ static int io_timeout_update(struct io_ring_ctx *ctx, __u64 user_data,
timeout->off = 0; /* noseq */
data = req->async_data;
data->ts = *ts;
list_add_tail(&timeout->list, &ctx->timeout_list);
hrtimer_init(&data->timer, io_timeout_get_clock(data), mode);
data->timer.function = io_timeout_fn;
hrtimer_start(&data->timer, timespec64_to_ktime(*ts), mode);
hrtimer_start(&data->timer, timespec64_to_ktime(data->ts), mode);
return 0;
}