io_uring: add irq lockdep checks

We don't post CQEs from the IRQ context, add a check catching that. Signed-off-by: Pavel Begunkov <[email protected]> Link: https://lore.kernel.org/r/f23f7a24dbe8027b3d37873fece2b6488f878b31.1681210788.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <[email protected]>
niw · Apr 12, 2023 · 8ce4269 · 8ce4269
1 parent ceac766
commit 8ce4269
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h
@@ -94,6 +94,8 @@ bool io_match_task_safe(struct io_kiocb *head, struct task_struct *task,
 
 #define io_lockdep_assert_cq_locked(ctx)				\
 	do {								\
+		lockdep_assert(in_task());				\
+									\
 		if (ctx->flags & IORING_SETUP_IOPOLL) {			\
 			lockdep_assert_held(&ctx->uring_lock);		\
 		} else if (!ctx->task_complete) {			\