From: Christoph Hellwig <hch@lst.de>
To: Joao Martins <joao.m.martins@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Dan Williams <dan.j.williams@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Naoya Horiguchi <naoya.horiguchi@nec.com>,
Matthew Wilcox <willy@infradead.org>,
Jason Gunthorpe <jgg@ziepe.ca>,
John Hubbard <jhubbard@nvidia.com>,
Jane Chu <jane.chu@oracle.com>,
Muchun Song <songmuchun@bytedance.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Jonathan Corbet <corbet@lwn.net>,
nvdimm@lists.linux.dev, linux-doc@vger.kernel.org
Subject: Re: [PATCH v6 09/10] device-dax: set mapping prior to vmf_insert_pfn{,_pmd,pud}()
Date: Mon, 29 Nov 2021 17:48:52 +0100 [thread overview]
Message-ID: <20211129164852.GB27705@lst.de> (raw)
In-Reply-To: <b8056071-d0fe-b8ef-5fe3-85ab639f4bf7@oracle.com>
On Mon, Nov 29, 2021 at 03:49:46PM +0000, Joao Martins wrote:
> Hmmm -- if by individual helpers moving to __dev_dax_{pte,pmd,pud}_fault()
> it would be slightly less straighforward. Unless you might mean to move
> to check_vma() (around the dax_alive() check) and that might actually
> remove the opencoding of dax_read_lock in dax_mmap() even.
>
> I would rather prefer that this cleanup around dax_read_{un,}lock is
> a separate patch separate to this series, unless you feel strongly that
> it needs to be part of this set.
Feel free to keep it as-is.
next prev parent reply other threads:[~2021-11-29 16:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-24 19:09 [PATCH v6 00/10] mm, device-dax: Introduce compound pages in devmap Joao Martins
2021-11-24 19:09 ` [PATCH v6 01/10] memory-failure: fetch compound_head after pgmap_pfn_valid() Joao Martins
2021-11-24 19:09 ` [PATCH v6 02/10] mm/page_alloc: split prep_compound_page into head and tail subparts Joao Martins
2021-11-24 19:09 ` [PATCH v6 03/10] mm/page_alloc: refactor memmap_init_zone_device() page init Joao Martins
2021-11-24 19:09 ` [PATCH v6 04/10] mm/memremap: add ZONE_DEVICE support for compound pages Joao Martins
2021-11-25 6:11 ` Christoph Hellwig
2021-11-25 11:35 ` Joao Martins
2021-11-24 19:10 ` [PATCH v6 05/10] device-dax: use ALIGN() for determining pgoff Joao Martins
2021-11-24 19:10 ` [PATCH v6 06/10] device-dax: use struct_size() Joao Martins
2021-11-24 19:10 ` [PATCH v6 07/10] device-dax: ensure dev_dax->pgmap is valid for dynamic devices Joao Martins
2021-11-24 19:10 ` [PATCH v6 08/10] device-dax: factor out page mapping initialization Joao Martins
2021-11-24 19:10 ` [PATCH v6 09/10] device-dax: set mapping prior to vmf_insert_pfn{,_pmd,pud}() Joao Martins
2021-11-25 11:42 ` Joao Martins
2021-11-26 18:39 ` Joao Martins
2021-11-29 7:32 ` Christoph Hellwig
2021-11-29 15:49 ` Joao Martins
2021-11-29 16:48 ` Christoph Hellwig [this message]
2021-11-29 17:20 ` Joao Martins
2021-11-25 18:02 ` [PATCH v6 09/10] device-dax: set mapping prior to vmf_insert_pfn{, _pmd, pud}() kernel test robot
2021-11-24 19:10 ` [PATCH v6 10/10] device-dax: compound devmap support Joao Martins
2021-11-24 22:30 ` [PATCH v6 00/10] mm, device-dax: Introduce compound pages in devmap Dan Williams
2021-11-24 22:41 ` Andrew Morton
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