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From: Dan Williams <dan.j.williams@intel.com>
To: Huaisheng Ye <yehs2007@zoho.com>
Cc: linux-nvdimm <linux-nvdimm@lists.01.org>,
	Alasdair Kergon <agk@redhat.com>,
	Mike Snitzer <snitzer@redhat.com>,
	device-mapper development <dm-devel@redhat.com>,
	Matthew Wilcox <willy@infradead.org>,
	zwisler@kernel.org, Jan Kara <jack@suse.cz>,
	Dave Jiang <dave.jiang@intel.com>,
	Vishal L Verma <vishal.l.verma@intel.com>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	NingTing Cheng <chengnt@lenovo.com>,
	Huaisheng Ye <yehs1@lenovo.com>
Subject: Re: [RFC PATCH v2 0/3] realize dax_operations for dm-snapshot
Date: Sun, 25 Nov 2018 12:59:59 -0800	[thread overview]
Message-ID: <CAPcyv4hmCsNOZPEAzOLxhFCQpyaG0_9TJvJnyuytQAVEU7_wbA@mail.gmail.com> (raw)
In-Reply-To: <20181121032702.3048-1-yehs2007@zoho.com>

On Tue, Nov 20, 2018 at 7:27 PM Huaisheng Ye <yehs2007@zoho.com> wrote:
>
> From: Huaisheng Ye <yehs1@lenovo.com>
>
> Changes
> v1->v2:
>         Add NULL funtions for origin_dax_direct_access and
>         origin_dax_copy_from/to_iter in order to avoid building
>         error when CONFIG_DAX_DRIVER has NOT been enabled.
>
> [v1]: https://lkml.org/lkml/2018/11/20/759
>
> This series patches are used to realize the dax_operations for dm-snapshot
> with persistent memory device.

How does this interact with mmap write faults if the mapping is dax
and the page needs to be cow'd?

  parent reply	other threads:[~2018-11-25 21:00 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-21  3:26 [RFC PATCH v2 0/3] realize dax_operations for dm-snapshot Huaisheng Ye
2018-11-21  3:27 ` [RFC PATCH v2 1/3] dm: enable " Huaisheng Ye
2018-11-21  3:27 ` [RFC PATCH v2 2/3] dm: expand hc_map in mapped_device for lack of map Huaisheng Ye
2018-11-21  3:27 ` [RFC PATCH v2 3/3] dm: expand valid types for dm-ioctl Huaisheng Ye
2018-11-25 20:59 ` Dan Williams [this message]
2018-11-28 14:27   ` [External] Re: [RFC PATCH v2 0/3] realize dax_operations for dm-snapshot Huaisheng HS1 Ye

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