From: Dan Williams <dan.j.williams@intel.com>
To: Shiyang Ruan <ruansy.fnst@fujitsu.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-xfs <linux-xfs@vger.kernel.org>,
Linux NVDIMM <nvdimm@lists.linux.dev>,
Linux MM <linux-mm@kvack.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
"Darrick J. Wong" <djwong@kernel.org>,
david <david@fromorbit.com>,
Christoph Hellwig <hch@infradead.org>,
Jane Chu <jane.chu@oracle.com>
Subject: Re: [PATCH v12 1/7] dax: Introduce holder for dax_device
Date: Tue, 12 Apr 2022 16:22:34 -0700 [thread overview]
Message-ID: <CAPcyv4iqHMR4Pee0Mjca2iM6Vhht8s=56-ZefYvpBmxuEi0Q6A@mail.gmail.com> (raw)
In-Reply-To: <20220410160904.3758789-2-ruansy.fnst@fujitsu.com>
On Sun, Apr 10, 2022 at 9:09 AM Shiyang Ruan <ruansy.fnst@fujitsu.com> wrote:
>
> To easily track filesystem from a pmem device, we introduce a holder for
> dax_device structure, and also its operation. This holder is used to
> remember who is using this dax_device:
> - When it is the backend of a filesystem, the holder will be the
> instance of this filesystem.
> - When this pmem device is one of the targets in a mapped device, the
> holder will be this mapped device. In this case, the mapped device
> has its own dax_device and it will follow the first rule. So that we
> can finally track to the filesystem we needed.
>
> The holder and holder_ops will be set when filesystem is being mounted,
> or an target device is being activated.
>
Looks good to me:
Reviewed-by: Dan Williams <dan.j.wiliams@intel.com>
I am assuming this will be staged in a common DAX branch, but holler
now if this should go through the XFS tree.
next prev parent reply other threads:[~2022-04-12 23:22 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-10 16:08 [PATCH v12 0/7] fsdax: introduce fs query to support reflink Shiyang Ruan
2022-04-10 16:08 ` [PATCH v12 1/7] dax: Introduce holder for dax_device Shiyang Ruan
2022-04-11 6:35 ` Christoph Hellwig
2022-04-12 23:22 ` Dan Williams [this message]
2022-04-10 16:08 ` [PATCH v12 2/7] mm: factor helpers for memory_failure_dev_pagemap Shiyang Ruan
2022-04-10 19:48 ` kernel test robot
2022-04-10 20:19 ` kernel test robot
2022-04-11 6:37 ` Christoph Hellwig
2022-04-11 9:39 ` Shiyang Ruan
2022-04-10 16:09 ` [PATCH v12 3/7] pagemap,pmem: Introduce ->memory_failure() Shiyang Ruan
2022-04-10 16:09 ` [PATCH v12 4/7] fsdax: Introduce dax_lock_mapping_entry() Shiyang Ruan
2022-04-10 16:09 ` [PATCH v12 5/7] mm: Introduce mf_dax_kill_procs() for fsdax case Shiyang Ruan
2022-04-11 6:40 ` wangjianjian (C)
2022-04-11 9:40 ` Shiyang Ruan
2022-04-10 16:09 ` [PATCH v12 6/7] xfs: Implement ->notify_failure() for XFS Shiyang Ruan
2022-04-10 18:58 ` kernel test robot
2022-04-10 23:54 ` kernel test robot
2022-04-11 6:39 ` Christoph Hellwig
2022-04-13 0:04 ` Dave Chinner
2022-04-13 2:06 ` Dan Williams
2022-04-13 6:09 ` Dave Chinner
2022-04-13 17:09 ` Dan Williams
2022-04-13 17:12 ` Christoph Hellwig
2022-04-14 13:22 ` [xfs] bf68be0c39: BUG:KASAN:null-ptr-deref_in_fs_put_dax kernel test robot
2022-04-10 16:09 ` [PATCH v12 7/7] fsdax: set a CoW flag when associate reflink mappings Shiyang Ruan
2022-04-11 6:55 ` Christoph Hellwig
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CAPcyv4iqHMR4Pee0Mjca2iM6Vhht8s=56-ZefYvpBmxuEi0Q6A@mail.gmail.com' \
--to=dan.j.williams@intel.com \
--cc=david@fromorbit.com \
--cc=djwong@kernel.org \
--cc=hch@infradead.org \
--cc=jane.chu@oracle.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-xfs@vger.kernel.org \
--cc=nvdimm@lists.linux.dev \
--cc=ruansy.fnst@fujitsu.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).