linux-kernel - Re: [RFC PATCH 3/4] mm/mmu_gather: Track page size with mmu gather and force flush if page size change

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Message-ID: <001a01d1ba4c$47742590$d65c70b0$@alibaba-inc.com>
Date:	Mon, 30 May 2016 16:21:34 +0800
From:	"Hillf Danton" <hillf.zj@...baba-inc.com>
To:	"Aneesh Kumar" <aneesh.kumar@...ux.vnet.ibm.com>
Cc:	"linux-kernel" <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>
Subject: Re: [RFC PATCH 3/4] mm/mmu_gather: Track page size with mmu gather and force flush if page size change

> diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
> index 2ac8fe202e9a..3ca36c111b47 100644
> --- a/include/asm-generic/tlb.h
> +++ b/include/asm-generic/tlb.h
> @@ -112,6 +112,7 @@ struct mmu_gather {
>  	 * that that we can adjust the range after the flush
>  	 */
>  	unsigned long addr;
> +	int page_size;

Add a comment for it please.

Hillf
>  };