arm: use asm-generic/mmu_context.h for no-op implementations (292f70d7) · Commits · 戴 / test

arch/arm/include/asm/mmu_context.h

+3 −23

Original line number	Diff line number	Diff line
		@@ -26,6 +26,8 @@ void __check_vmalloc_seq(struct mm_struct *mm);
		#ifdef CONFIG_CPU_HAS_ASID

		void check_and_switch_context(struct mm_struct mm, struct task_struct tsk);

		#define init_new_context init_new_context
		static inline int
		init_new_context(struct task_struct tsk, struct mm_struct mm)
		{
		@@ -92,32 +94,10 @@ static inline void finish_arch_post_lock_switch(void)

		#endif /* CONFIG_MMU */

		static inline int
		init_new_context(struct task_struct tsk, struct mm_struct mm)
		{
		return 0;
		}


		#endif /* CONFIG_CPU_HAS_ASID */

		#define destroy_context(mm) do { } while(0)
		#define activate_mm(prev,next) switch_mm(prev, next, NULL)

		/*
		* This is called when "tsk" is about to enter lazy TLB mode.
		*
		* mm: describes the currently active mm context
		* tsk: task which is entering lazy tlb
		* cpu: cpu number which is entering lazy tlb
		*
		* tsk->mm will be NULL
		*/
		static inline void
		enter_lazy_tlb(struct mm_struct mm, struct task_struct tsk)
		{
		}

		/*
		* This is the actual mm switch as far as the scheduler
		* is concerned. No registers are touched. We avoid
		@@ -149,6 +129,6 @@ switch_mm(struct mm_struct prev, struct mm_struct next,
		#endif
		}

		#define deactivate_mm(tsk,mm) do { } while (0)
		#include <asm-generic/mmu_context.h>

		#endif