From 22e99fa56443f19b96e2e888854bfc202dd97069 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <hca@linux.ibm.com>
Date: Sun, 2 Apr 2023 20:55:16 +0200
Subject: [PATCH] s390/mm: implement set_memory_rox()
Provide the s390 specific native set_memory_rox() implementation to avoid
frequent set_memory_ro(); set_memory_x() call pairs.
This is the s390 variant of commit 60463628c9e0 ("x86/mm: Implement native
set_memory_rox()").
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---
arch/s390/include/asm/set_memory.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/s390/include/asm/set_memory.h b/arch/s390/include/asm/set_memory.h
index 950d87bd997a7..f4362ce1e17a6 100644
--- a/arch/s390/include/asm/set_memory.h
+++ b/arch/s390/include/asm/set_memory.h
@@ -34,6 +34,12 @@ static inline int set_memory_x(unsigned long addr, int numpages)
return __set_memory(addr, numpages, SET_MEMORY_X);
}
+#define set_memory_rox set_memory_rox
+static inline int set_memory_rox(unsigned long addr, int numpages)
+{
+ return __set_memory(addr, numpages, SET_MEMORY_RO | SET_MEMORY_X);
+}
+
static inline int set_memory_4k(unsigned long addr, int numpages)
{
return __set_memory(addr, numpages, SET_MEMORY_4K);
--
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