Commit 55e6ac1e authored Jan 08, 2021 by Pavel Begunkov Committed by Jens Axboe Jan 09, 2021

io_uring: io_rw_reissue lockdep annotations



We expect io_rw_reissue() to take place only during submission with
uring_lock held. Add a lockdep annotation to check that invariant.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent b1445e59

fs/io_uring.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2692,6 +2692,8 @@ static bool io_rw_reissue(struct io_kiocb *req, long res)
		if ((res != -EAGAIN && res != -EOPNOTSUPP) \|\| io_wq_current_is_worker())
		return false;

		lockdep_assert_held(&req->ctx->uring_lock);

		ret = io_sq_thread_acquire_mm_files(req->ctx, req);

		if (io_resubmit_prep(req, ret)) {