linux-kernel - Re: [PATCH v11 5/8] mm: move pgoff_address() to vma_pgoff

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Date:   Wed, 30 Mar 2022 14:49:31 +0800
From:   Shiyang Ruan <ruansy.fnst@...itsu.com>
To:     Christoph Hellwig <hch@...radead.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-xfs@...r.kernel.org>,
        <nvdimm@...ts.linux.dev>, <linux-mm@...ck.org>,
        <linux-fsdevel@...r.kernel.org>, <djwong@...nel.org>,
        <dan.j.williams@...el.com>, <david@...morbit.com>,
        <jane.chu@...cle.com>, Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v11 5/8] mm: move pgoff_address() to vma_pgoff_address()



在 2022/3/30 13:46, Christoph Hellwig 写道:
> On Sun, Feb 27, 2022 at 08:07:44PM +0800, Shiyang Ruan wrote:
>> Since it is not a DAX-specific function, move it into mm and rename it
>> to be a generic helper.
> 
> FYI, there is a patch in -mm and linux-next:
> 
>    "mm: rmap: introduce pfn_mkclean_range() to cleans PTEs"
> 
> that adds a vma_pgoff_address which seems like a bit of a superset of
> the one added in this patch, but only is in mm/internal.h.

Yes.  The function in this patch handles more cases.

So, let me rebase onto this patch and move the function into 
/include/linux/mm.h, so that fs/dax.c can also use it.  Is this ok?


--
Thanks,
Ruan.