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kernel add
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#ifndef _ASM_TLB_H
#define _ASM_TLB_H
#include <asm/tlbflush.h>
#ifdef CONFIG_MMU
extern void check_pgt_cache(void);
#else
#define check_pgt_cache() do {} while(0)
#endif
/*
* we don't need any special per-pte or per-vma handling...
*/
#define tlb_start_vma(tlb, vma) do { } while (0)
#define tlb_end_vma(tlb, vma) do { } while (0)
#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
/*
* .. because we flush the whole mm when it fills up
*/
#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
#include <asm-generic/tlb.h>
#endif /* _ASM_TLB_H */
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