From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/fs/namespace.c | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/kernel/fs/namespace.c b/kernel/fs/namespace.c
index 6947740..6d1f11a 100644
--- a/kernel/fs/namespace.c
+++ b/kernel/fs/namespace.c
@@ -14,7 +14,6 @@
#include <linux/mnt_namespace.h>
#include <linux/user_namespace.h>
#include <linux/namei.h>
-#include <linux/delay.h>
#include <linux/security.h>
#include <linux/cred.h>
#include <linux/idr.h>
@@ -322,11 +321,8 @@
* incremented count after it has set MNT_WRITE_HOLD.
*/
smp_mb();
- while (READ_ONCE(mnt->mnt.mnt_flags) & MNT_WRITE_HOLD) {
- preempt_enable();
- cpu_chill();
- preempt_disable();
- }
+ while (READ_ONCE(mnt->mnt.mnt_flags) & MNT_WRITE_HOLD)
+ cpu_relax();
/*
* After the slowpath clears MNT_WRITE_HOLD, mnt_is_readonly will
* be set to match its requirements. So we must not load that until
--
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