On Tue, 15 Nov 2011 15:04:18 +0800
Shaohua Li <shaohua.li@xxxxxxxxx> wrote:
> --- linux.orig/include/asm-generic/tlb.h 2011-11-15 09:39:11.000000000 +0800
> +++ linux/include/asm-generic/tlb.h 2011-11-15 09:39:23.000000000 +0800
> @@ -139,6 +139,20 @@ static inline void tlb_remove_page(struc
> __tlb_remove_tlb_entry(tlb, ptep, address); \
> } while (0)
>
> +/**
> + * tlb_remove_pmd_tlb_entry - remember a pmd mapping for later tlb invalidation
> + * This is a nop so far, because only x86 needs it.
> + */
> +#ifndef __tlb_remove_pmd_tlb_entry
> +#define __tlb_remove_pmd_tlb_entry(tlb, pmdp, address) do {} while (0)
> +#endif
> +
> +#define tlb_remove_pmd_tlb_entry(tlb, pmdp, address) \
> + do { \
> + tlb->need_flush = 1; \
> + __tlb_remove_pmd_tlb_entry(tlb, pmdp, address); \
> + } while (0)
> +
Is there any reason why we cannot implement tlb_remove_pmd_tlb_entry()
as a nice, typesafe C function?
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