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2024-05-10 10ebd8556b7990499c896a550e3d416b444211e6

 kernel/arch/s390/include/asm/set_memory.h
..
..
@@ -2,6 +2,10 @@
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 #ifndef _ASMS390_SET_MEMORY_H
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 #define _ASMS390_SET_MEMORY_H
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+#include <linux/mutex.h>
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+
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+extern struct mutex cpa_mutex;
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+
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 #define SET_MEMORY_RO	1UL
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 #define SET_MEMORY_RW	2UL
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 #define SET_MEMORY_NX	4UL