git: f491e0d2a85a - stable/15 - x86/cpu_machdep.c: unconditionally fence

From: Konstantin Belousov <kib_at_FreeBSD.org>
Date: Wed, 11 Feb 2026 05:17:28 UTC
The branch stable/15 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=f491e0d2a85a7232be33923dcc256e479bf30810

commit f491e0d2a85a7232be33923dcc256e479bf30810
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2026-01-22 13:27:00 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-02-11 05:12:37 +0000

    x86/cpu_machdep.c: unconditionally fence
    
    (cherry picked from commit 1c4e16f6db81254376f4919aede03267fe572aea)
---
 sys/x86/x86/cpu_machdep.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sys/x86/x86/cpu_machdep.c b/sys/x86/x86/cpu_machdep.c
index 5b4abfe71642..067374be4941 100644
--- a/sys/x86/x86/cpu_machdep.c
+++ b/sys/x86/x86/cpu_machdep.c
@@ -47,7 +47,6 @@
 #include "opt_kstack_pages.h"
 #include "opt_maxmem.h"
 #include "opt_platform.h"
-#include "opt_sched.h"
 #ifdef __i386__
 #include "opt_apic.h"
 #endif
@@ -543,9 +542,7 @@ cpu_idle_enter(int *statep, int newstate)
 	 * is visible before calling cpu_idle_wakeup().
 	 */
 	atomic_store_int(statep, newstate);
-#if defined(SCHED_ULE) && defined(SMP)
 	atomic_thread_fence_seq_cst();
-#endif
 
 	/*
 	 * Since we may be in a critical section from cpu_idle(), if