linux-ext4 - Re: [PATCH v2 02/11] mm: add pmd

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Message-ID: <56468838.6010506@intel.com>
Date:	Fri, 13 Nov 2015 17:02:48 -0800
From:	Dave Hansen <dave.hansen@...el.com>
To:	Ross Zwisler <ross.zwisler@...ux.intel.com>,
	linux-kernel@...r.kernel.org
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	Theodore Ts'o <tytso@....edu>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	Dan Williams <dan.j.williams@...el.com>,
	Dave Chinner <david@...morbit.com>,
	Ingo Molnar <mingo@...hat.com>, Jan Kara <jack@...e.com>,
	Jeff Layton <jlayton@...chiereds.net>,
	Matthew Wilcox <willy@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-mm@...ck.org, linux-nvdimm@...ts.01.org, x86@...nel.org,
	xfs@....sgi.com, Andrew Morton <akpm@...ux-foundation.org>,
	Matthew Wilcox <matthew.r.wilcox@...el.com>
Subject: Re: [PATCH v2 02/11] mm: add pmd_mkclean()

On 11/13/2015 04:06 PM, Ross Zwisler wrote:
> +static inline pmd_t pmd_mkclean(pmd_t pmd)
> +{
> +	return pmd_clear_flags(pmd, _PAGE_DIRTY | _PAGE_SOFT_DIRTY);
> +}

pte_mkclean() doesn't clear _PAGE_SOFT_DIRTY.  What the thought behind
doing it here?
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