From 542e14a59bcaf97d7faed9f8d3fc5fed20625e3a Mon Sep 17 00:00:00 2001
From: Olivier Certner <olce@FreeBSD.org>
Date: Tue, 22 Apr 2025 16:26:22 +0200
Subject: [PATCH] queue(3): Wrap QMD_ASSERT()'s guard with __predict_false()

Such a guard is bound to be almost always false (obviously).

Reviewed by:    emaste (older version)
MFC after:      3 days
Sponsored by:   The FreeBSD Foundation
Differential Revision:  https://reviews.freebsd.org/D49974

(cherry picked from commit 613d66b5e17d92e5304fdc9abe4c62ba015ebf31)
---
 sys/sys/queue.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/sys/queue.h b/sys/sys/queue.h
index e88e3ad69ca..5dabb1a241c 100644
--- a/sys/sys/queue.h
+++ b/sys/sys/queue.h
@@ -210,7 +210,7 @@ struct qm_trace {
 
 #ifndef QMD_ASSERT
 #define QMD_ASSERT(expression, fmt, ...) do {				\
-	if (!(expression))						\
+	if (__predict_false(!(expression)))				\
 		QMD_PANIC("%s:%u: %s: " fmt,				\
 		    __FILE__, __LINE__, __func__,  ##__VA_ARGS__);	\
 } while (0)