From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
akpm@linux-foundation.org, Jan Kara <jack@suse.cz>,
linux-nvdimm@lists.01.org, linux-api@vger.kernel.org,
Dave Chinner <david@fromorbit.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Jeff Moyer <jmoyer@redhat.com>,
linux-fsdevel@vger.kernel.org,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Christoph Hellwig <hch@lst.de>, xfs <linux-xfs@vger.kernel.org>
Subject: Re: [RFC PATCH 2/2] mm, fs: daxfile, an interface for byte-addressable updates to pmem
Date: Tue, 20 Jun 2017 09:42:55 -0600 [thread overview]
Message-ID: <20170620154255.GA2536@linux.intel.com> (raw)
In-Reply-To: <20170620052214.GA3787@birch.djwong.org>
On Mon, Jun 19, 2017 at 10:22:14PM -0700, Darrick J. Wong wrote:
<>
> Fourth, the VFS entry points for things like read, write, truncate,
> utimes, fallocate, etc. all just bail out if S_IOMAP_FROZEN is set on a
> file, so that the block map cannot be modified. mmap is still allowed,
> as we've discussed. /Maybe/ we can allow fallocate to extend a file
> with zeroed extents (it will be slow) as I've heard murmurs about
> wanting to be able to extend a file, maybe not.
Read and write should still be allowed, right?
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WARNING: multiple messages have this Message-ID (diff)
From: Ross Zwisler <ross.zwisler@linux.intel.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
akpm@linux-foundation.org, Jan Kara <jack@suse.cz>,
linux-nvdimm@lists.01.org, linux-api@vger.kernel.org,
Dave Chinner <david@fromorbit.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Jeff Moyer <jmoyer@redhat.com>,
linux-fsdevel@vger.kernel.org,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Christoph Hellwig <hch@lst.de>, xfs <linux-xfs@vger.kernel.org>
Subject: Re: [RFC PATCH 2/2] mm, fs: daxfile, an interface for byte-addressable updates to pmem
Date: Tue, 20 Jun 2017 09:42:55 -0600 [thread overview]
Message-ID: <20170620154255.GA2536@linux.intel.com> (raw)
In-Reply-To: <20170620052214.GA3787@birch.djwong.org>
On Mon, Jun 19, 2017 at 10:22:14PM -0700, Darrick J. Wong wrote:
<>
> Fourth, the VFS entry points for things like read, write, truncate,
> utimes, fallocate, etc. all just bail out if S_IOMAP_FROZEN is set on a
> file, so that the block map cannot be modified. mmap is still allowed,
> as we've discussed. /Maybe/ we can allow fallocate to extend a file
> with zeroed extents (it will be slow) as I've heard murmurs about
> wanting to be able to extend a file, maybe not.
Read and write should still be allowed, right?
next prev parent reply other threads:[~2017-06-20 15:42 UTC|newest]
Thread overview: 128+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-17 1:15 [RFC PATCH 0/2] daxfile: enable byte-addressable updates to pmem Dan Williams
2017-06-17 1:15 ` Dan Williams
2017-06-17 1:15 ` Dan Williams
2017-06-17 1:15 ` Dan Williams
[not found] ` <149766212410.22552.15957843500156182524.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-17 1:15 ` [RFC PATCH 1/2] mm: introduce bmap_walk() Dan Williams
2017-06-17 1:15 ` Dan Williams
2017-06-17 1:15 ` Dan Williams
2017-06-17 1:15 ` Dan Williams
2017-06-17 5:22 ` Christoph Hellwig
2017-06-17 5:22 ` Christoph Hellwig
[not found] ` <20170617052212.GA8246-jcswGhMUV9g@public.gmane.org>
2017-06-17 12:29 ` Dan Williams
2017-06-17 12:29 ` Dan Williams
2017-06-17 12:29 ` Dan Williams
2017-06-17 12:29 ` Dan Williams
2017-06-18 7:51 ` Christoph Hellwig
2017-06-18 7:51 ` Christoph Hellwig
2017-06-18 7:51 ` Christoph Hellwig
2017-06-19 16:18 ` Darrick J. Wong
2017-06-19 16:18 ` Darrick J. Wong
[not found] ` <20170618075152.GA25871-jcswGhMUV9g@public.gmane.org>
2017-06-19 18:19 ` Al Viro
2017-06-19 18:19 ` Al Viro
2017-06-19 18:19 ` Al Viro
2017-06-19 18:19 ` Al Viro
2017-06-20 7:34 ` Christoph Hellwig
2017-06-20 7:34 ` Christoph Hellwig
2017-06-20 7:34 ` Christoph Hellwig
2017-06-17 1:15 ` [RFC PATCH 2/2] mm, fs: daxfile, an interface for byte-addressable updates to pmem Dan Williams
2017-06-17 1:15 ` Dan Williams
2017-06-17 1:15 ` Dan Williams
[not found] ` <149766213493.22552.4057048843646200083.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-17 16:25 ` Andy Lutomirski
2017-06-17 16:25 ` Andy Lutomirski
2017-06-17 16:25 ` Andy Lutomirski
2017-06-17 16:25 ` Andy Lutomirski
2017-06-17 21:52 ` Dan Williams
2017-06-17 21:52 ` Dan Williams
2017-06-17 21:52 ` Dan Williams
[not found] ` <CAPcyv4j4UEegViDJcLZjVv5AFGC18-DcvHFnhZatB0hH3BY85g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-17 23:50 ` Andy Lutomirski
2017-06-17 23:50 ` Andy Lutomirski
2017-06-17 23:50 ` Andy Lutomirski
2017-06-17 23:50 ` Andy Lutomirski
2017-06-18 3:15 ` Dan Williams
2017-06-18 3:15 ` Dan Williams
2017-06-18 3:15 ` Dan Williams
2017-06-18 5:05 ` Andy Lutomirski
2017-06-18 5:05 ` Andy Lutomirski
2017-06-18 5:05 ` Andy Lutomirski
[not found] ` <CALCETrVY38h2ajpod2U_2pdHSp8zO4mG2p19h=OnnHmhGTairw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-19 13:21 ` Dave Chinner
2017-06-19 13:21 ` Dave Chinner
2017-06-19 13:21 ` Dave Chinner
2017-06-19 13:21 ` Dave Chinner
2017-06-19 15:22 ` Andy Lutomirski
2017-06-19 15:22 ` Andy Lutomirski
2017-06-19 15:22 ` Andy Lutomirski
[not found] ` <CALCETrUe0igzK0RZTSSondkCY3ApYQti89tOh00f0j_APrf_dQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-20 0:46 ` Dave Chinner
2017-06-20 0:46 ` Dave Chinner
2017-06-20 0:46 ` Dave Chinner
2017-06-20 0:46 ` Dave Chinner
2017-06-20 5:53 ` Andy Lutomirski
2017-06-20 5:53 ` Andy Lutomirski
2017-06-20 5:53 ` Andy Lutomirski
2017-06-20 5:53 ` Andy Lutomirski
2017-06-20 8:49 ` Christoph Hellwig
2017-06-20 8:49 ` Christoph Hellwig
2017-06-20 8:49 ` Christoph Hellwig
[not found] ` <20170620084924.GA9752-jcswGhMUV9g@public.gmane.org>
2017-06-20 16:17 ` Dan Williams
2017-06-20 16:17 ` Dan Williams
2017-06-20 16:17 ` Dan Williams
2017-06-20 16:17 ` Dan Williams
[not found] ` <CAPcyv4jkH6iwDoG4NnCaTNXozwYgVXiJDe2iFSONcE63KvGQoA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-20 16:26 ` Andy Lutomirski
2017-06-20 16:26 ` Andy Lutomirski
2017-06-20 16:26 ` Andy Lutomirski
2017-06-20 16:26 ` Andy Lutomirski
2017-06-20 23:53 ` Dave Chinner
2017-06-20 23:53 ` Dave Chinner
2017-06-20 23:53 ` Dave Chinner
2017-06-21 1:24 ` Darrick J. Wong
2017-06-21 1:24 ` Darrick J. Wong
2017-06-21 2:19 ` Dave Chinner
2017-06-21 2:19 ` Dave Chinner
2017-06-21 2:19 ` Dave Chinner
[not found] ` <CALCETrVuoPDRuuhc9X8eVCYiFUzWLSTRkcjbD6jas_2J2GixNQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-20 10:11 ` Dave Chinner
2017-06-20 10:11 ` Dave Chinner
2017-06-20 10:11 ` Dave Chinner
2017-06-20 10:11 ` Dave Chinner
2017-06-20 16:14 ` Andy Lutomirski
2017-06-20 16:14 ` Andy Lutomirski
2017-06-20 16:14 ` Andy Lutomirski
2017-06-20 16:14 ` Andy Lutomirski
2017-06-21 1:40 ` Dave Chinner
2017-06-21 1:40 ` Dave Chinner
2017-06-21 1:40 ` Dave Chinner
2017-06-21 5:18 ` Andy Lutomirski
2017-06-21 5:18 ` Andy Lutomirski
2017-06-21 5:18 ` Andy Lutomirski
2017-06-21 5:18 ` Andy Lutomirski
[not found] ` <CALCETrVYmbyNS-btvsN_M-QyWPZA_Y_4JXOM893g7nhZA+WviQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-22 0:02 ` Dave Chinner
2017-06-22 0:02 ` Dave Chinner
2017-06-22 0:02 ` Dave Chinner
2017-06-22 0:02 ` Dave Chinner
2017-06-22 4:07 ` Andy Lutomirski
2017-06-22 4:07 ` Andy Lutomirski
2017-06-22 4:07 ` Andy Lutomirski
2017-06-22 4:07 ` Andy Lutomirski
2017-06-23 0:52 ` Dave Chinner
2017-06-23 0:52 ` Dave Chinner
2017-06-23 0:52 ` Dave Chinner
2017-06-23 3:07 ` Andy Lutomirski
2017-06-23 3:07 ` Andy Lutomirski
2017-06-23 3:07 ` Andy Lutomirski
2017-06-18 8:18 ` Christoph Hellwig
2017-06-18 8:18 ` Christoph Hellwig
[not found] ` <20170618081850.GA26332-jcswGhMUV9g@public.gmane.org>
2017-06-19 1:51 ` Dan Williams
2017-06-19 1:51 ` Dan Williams
2017-06-19 1:51 ` Dan Williams
2017-06-19 1:51 ` Dan Williams
2017-06-20 5:22 ` Darrick J. Wong
2017-06-20 5:22 ` Darrick J. Wong
2017-06-20 15:42 ` Ross Zwisler [this message]
2017-06-20 15:42 ` Ross Zwisler
2017-06-22 7:09 ` Darrick J. Wong
2017-06-22 7:09 ` Darrick J. Wong
[not found] ` <20170620052214.GA3787-PTl6brltDGh4DFYR7WNSRA@public.gmane.org>
2017-06-21 23:37 ` Dave Chinner
2017-06-21 23:37 ` Dave Chinner
2017-06-21 23:37 ` Dave Chinner
2017-06-21 23:37 ` Dave Chinner
2017-06-22 7:23 ` Darrick J. Wong
2017-06-22 7:23 ` Darrick J. Wong
2017-06-22 7:23 ` Darrick J. Wong
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