From 958e46acc8e900e8569dd467c1af9b8d2d019394 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 09 Dec 2023 08:38:54 +0000
Subject: [PATCH] disable cpu isolcpus
---
kernel/include/asm-generic/futex.h | 23 +----------------------
1 files changed, 1 insertions(+), 22 deletions(-)
diff --git a/kernel/include/asm-generic/futex.h b/kernel/include/asm-generic/futex.h
index 8666fe7..f4c3470 100644
--- a/kernel/include/asm-generic/futex.h
+++ b/kernel/include/asm-generic/futex.h
@@ -34,7 +34,6 @@
u32 tmp;
preempt_disable();
- pagefault_disable();
ret = -EFAULT;
if (unlikely(get_user(oldval, uaddr) != 0))
@@ -67,7 +66,6 @@
ret = -EFAULT;
out_pagefault_enable:
- pagefault_enable();
preempt_enable();
if (ret == 0)
@@ -118,26 +116,7 @@
static inline int
arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
{
- int oldval = 0, ret;
-
- pagefault_disable();
-
- switch (op) {
- case FUTEX_OP_SET:
- case FUTEX_OP_ADD:
- case FUTEX_OP_OR:
- case FUTEX_OP_ANDN:
- case FUTEX_OP_XOR:
- default:
- ret = -ENOSYS;
- }
-
- pagefault_enable();
-
- if (!ret)
- *oval = oldval;
-
- return ret;
+ return -ENOSYS;
}
static inline int
--
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