Commit aec18a57 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
Browse files

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: default avatarPavel Begunkov <asml.silence@gmail.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent d7e10d47

fs/io_uring.c

+3 −0
Original line number Diff line number Diff line
@@ -2205,6 +2205,9 @@ static void __io_req_task_submit(struct io_kiocb *req) 
	else

		__io_req_task_cancel(req, -EFAULT);

	mutex_unlock(&ctx->uring_lock);



	if (ctx->flags & IORING_SETUP_SQPOLL)

		io_sq_thread_drop_mm_files();

}



static void io_req_task_submit(struct callback_head *cb)