write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/arch/x86/include/asm/mmu.h
..
..
@@ -45,22 +45,20 @@
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 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
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 	/*
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 	 * One bit per protection key says whether userspace can
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-	 * use it or not.  protected by mmap_sem.
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+	 * use it or not.  protected by mmap_lock.
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 	 */
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 	u16 pkey_allocation_map;
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 	s16 execute_only_pkey;
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-#endif
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-#ifdef CONFIG_X86_INTEL_MPX
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-	/* address of the bounds directory */
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-	void __user *bd_addr;
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 #endif
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 } mm_context_t;
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 #define INIT_MM_CONTEXT(mm)						\
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 	.context = {							\
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 		.ctx_id = 1,						\
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+		.lock = __MUTEX_INITIALIZER(mm.context.lock),		\
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 	}
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 void leave_mm(int cpu);
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+#define leave_mm leave_mm
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 #endif /* _ASM_X86_MMU_H */