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io_uring: drop mm/files between task_work_submit
Since SQPOLL task can be shared and so task_work entries can be a mix of them, we need to drop mm and files before trying to issue next request. Cc: stable@vger.kernel.org # 5.10+ Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -2205,6 +2205,9 @@ static void __io_req_task_submit(struct io_kiocb *req)
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else
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__io_req_task_cancel(req, -EFAULT);
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mutex_unlock(&ctx->uring_lock);
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if (ctx->flags & IORING_SETUP_SQPOLL)
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io_sq_thread_drop_mm_files();
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}
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static void io_req_task_submit(struct callback_head *cb)
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