change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/include/asm-generic/futex.h
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@@ -34,7 +34,6 @@
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 	u32 tmp;
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 	preempt_disable();
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-	pagefault_disable();
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 	ret = -EFAULT;
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 	if (unlikely(get_user(oldval, uaddr) != 0))
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@@ -67,7 +66,6 @@
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 		ret = -EFAULT;
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 out_pagefault_enable:
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-	pagefault_enable();
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 	preempt_enable();
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 	if (ret == 0)
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@@ -118,26 +116,7 @@
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 static inline int
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 arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
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 {
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-	int oldval = 0, ret;
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-
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-	pagefault_disable();
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-
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-	switch (op) {
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-	case FUTEX_OP_SET:
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-	case FUTEX_OP_ADD:
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-	case FUTEX_OP_OR:
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-	case FUTEX_OP_ANDN:
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-	case FUTEX_OP_XOR:
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-	default:
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-		ret = -ENOSYS;
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-	}
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-
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-	pagefault_enable();
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-
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-	if (!ret)
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-		*oval = oldval;
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-
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-	return ret;
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+	return -ENOSYS;
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 }
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 static inline int