From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Jan Kara <jack@suse.cz>,
linux-nvdimm@lists.01.org, darrick.wong@oracle.com,
Dave Chinner <david@fromorbit.com>,
linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
Alexander Viro <viro@zeniv.linux.org.uk>,
luto@kernel.org, linux-fsdevel@vger.kernel.org,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 1/5] fs, xfs: introduce S_IOMAP_IMMUTABLE
Date: Sat, 5 Aug 2017 11:47:08 +0200 [thread overview]
Message-ID: <20170805094708.GB14930@lst.de> (raw)
In-Reply-To: <150181369070.32119.1019092252036976783.stgit@dwillia2-desk3.amr.corp.intel.com>
NAK^4.
We should not allow users to create immutable files. We have
proper ways to synchronize I/O, and this is just an invitation
for horrible abuses that should not be allowed, and which we've
always people told not to do.
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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>
Cc: darrick.wong@oracle.com, Jan Kara <jack@suse.cz>,
linux-nvdimm@lists.01.org, Dave Chinner <david@fromorbit.com>,
linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
Jeff Moyer <jmoyer@redhat.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
luto@kernel.org, linux-fsdevel@vger.kernel.org,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2 1/5] fs, xfs: introduce S_IOMAP_IMMUTABLE
Date: Sat, 5 Aug 2017 11:47:08 +0200 [thread overview]
Message-ID: <20170805094708.GB14930@lst.de> (raw)
In-Reply-To: <150181369070.32119.1019092252036976783.stgit@dwillia2-desk3.amr.corp.intel.com>
NAK^4.
We should not allow users to create immutable files. We have
proper ways to synchronize I/O, and this is just an invitation
for horrible abuses that should not be allowed, and which we've
always people told not to do.
next prev parent reply other threads:[~2017-08-05 9:44 UTC|newest]
Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-04 2:28 [PATCH v2 0/5] fs, xfs: block map immutable files for dax, dma-to-storage, and swap Dan Williams
2017-08-04 2:28 ` Dan Williams
2017-08-04 2:28 ` [PATCH v2 1/5] fs, xfs: introduce S_IOMAP_IMMUTABLE Dan Williams
2017-08-04 2:28 ` Dan Williams
2017-08-04 20:00 ` Darrick J. Wong
2017-08-04 20:00 ` Darrick J. Wong
2017-08-04 20:31 ` Dan Williams
2017-08-04 20:31 ` Dan Williams
2017-08-05 9:47 ` Christoph Hellwig [this message]
2017-08-05 9:47 ` Christoph Hellwig
2017-08-07 0:25 ` Dave Chinner
2017-08-07 0:25 ` Dave Chinner
2017-08-11 10:34 ` Christoph Hellwig
2017-08-11 10:34 ` Christoph Hellwig
2017-08-04 2:28 ` [PATCH v2 2/5] fs, xfs: introduce FALLOC_FL_SEAL_BLOCK_MAP Dan Williams
2017-08-04 2:28 ` Dan Williams
2017-08-04 2:28 ` Dan Williams
2017-08-04 19:46 ` Darrick J. Wong
2017-08-04 19:46 ` Darrick J. Wong
2017-08-04 19:52 ` Dan Williams
2017-08-04 19:52 ` Dan Williams
2017-08-04 23:31 ` Dave Chinner
2017-08-04 23:31 ` Dave Chinner
2017-08-04 23:43 ` Dan Williams
2017-08-04 23:43 ` Dan Williams
2017-08-05 0:04 ` Dave Chinner
2017-08-05 0:04 ` Dave Chinner
2017-08-04 2:28 ` [PATCH v2 3/5] fs, xfs: introduce FALLOC_FL_UNSEAL_BLOCK_MAP Dan Williams
2017-08-04 2:28 ` Dan Williams
2017-08-04 20:04 ` Darrick J. Wong
2017-08-04 20:04 ` Darrick J. Wong
2017-08-04 20:36 ` Dan Williams
2017-08-04 20:36 ` Dan Williams
2017-08-04 2:28 ` [PATCH v2 4/5] xfs: introduce XFS_DIFLAG2_IOMAP_IMMUTABLE Dan Williams
2017-08-04 2:28 ` Dan Williams
2017-08-04 20:33 ` Darrick J. Wong
2017-08-04 20:33 ` Darrick J. Wong
2017-08-04 20:45 ` Dan Williams
2017-08-04 20:45 ` Dan Williams
2017-08-04 23:46 ` Dave Chinner
2017-08-04 23:46 ` Dave Chinner
2017-08-04 23:57 ` Darrick J. Wong
2017-08-04 23:57 ` Darrick J. Wong
2017-08-04 2:28 ` [PATCH v2 5/5] xfs: toggle XFS_DIFLAG2_IOMAP_IMMUTABLE in response to fallocate Dan Williams
2017-08-04 2:28 ` Dan Williams
2017-08-04 20:14 ` Darrick J. Wong
2017-08-04 20:14 ` Darrick J. Wong
2017-08-04 20:47 ` Dan Williams
2017-08-04 20:47 ` Dan Williams
2017-08-04 20:53 ` Darrick J. Wong
2017-08-04 20:53 ` Darrick J. Wong
2017-08-04 20:55 ` Dan Williams
2017-08-04 20:55 ` Dan Williams
[not found] ` <150181368442.32119.13336247800141074356.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-08-04 2:38 ` [PATCH v2 0/5] fs, xfs: block map immutable files for dax, dma-to-storage, and swap Dan Williams
2017-08-04 2:38 ` Dan Williams
2017-08-04 2:38 ` Dan Williams
[not found] ` <CAPcyv4ii41F-Rj9pPGc0FHwrQ=hkSF_f0niQDn5_NjU-wcL+gg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-05 9:50 ` Christoph Hellwig
2017-08-05 9:50 ` Christoph Hellwig
2017-08-05 9:50 ` Christoph Hellwig
[not found] ` <20170805095013.GC14930-jcswGhMUV9g@public.gmane.org>
2017-08-06 18:51 ` Dan Williams
2017-08-06 18:51 ` Dan Williams
2017-08-06 18:51 ` Dan Williams
[not found] ` <CAPcyv4jgKmakB0WRUjx=2eD3YJ1x+C8cgnR6tA+g4+m+0etawQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-11 10:44 ` Christoph Hellwig
2017-08-11 10:44 ` Christoph Hellwig
2017-08-11 10:44 ` Christoph Hellwig
[not found] ` <20170811104429.GA13736-jcswGhMUV9g@public.gmane.org>
2017-08-11 22:26 ` Dan Williams
2017-08-11 22:26 ` Dan Williams
2017-08-11 22:26 ` Dan Williams
2017-08-12 3:57 ` Andy Lutomirski
2017-08-12 3:57 ` Andy Lutomirski
[not found] ` <CALCETrVvMbaxobdydtsdQWHyP1VhL1fpq1qS4M3=SmR1y4x5kw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-12 4:44 ` Dan Williams
2017-08-12 4:44 ` Dan Williams
2017-08-12 4:44 ` Dan Williams
2017-08-12 7:34 ` Christoph Hellwig
2017-08-12 7:34 ` Christoph Hellwig
2017-08-12 7:34 ` Christoph Hellwig
[not found] ` <CAPcyv4jrZ5a+zmAehZDxfP=+6BNCFAXOFWro2L7ruLkk+cY7OQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-12 7:33 ` Christoph Hellwig
2017-08-12 7:33 ` Christoph Hellwig
2017-08-12 7:33 ` Christoph Hellwig
[not found] ` <20170812073349.GA12679-jcswGhMUV9g@public.gmane.org>
2017-08-12 19:19 ` Dan Williams
2017-08-12 19:19 ` Dan Williams
2017-08-12 19:19 ` Dan Williams
2017-08-13 9:24 ` Christoph Hellwig
2017-08-13 9:24 ` Christoph Hellwig
[not found] ` <20170813092436.GB32112-jcswGhMUV9g@public.gmane.org>
2017-08-13 20:31 ` Dan Williams
2017-08-13 20:31 ` Dan Williams
2017-08-13 20:31 ` Dan Williams
[not found] ` <CAPcyv4ixTgSWG9K2Eg3XJmOvqJht81qL+Z3njoOjcXCD7XMpZw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-14 12:40 ` Jan Kara
2017-08-14 12:40 ` Jan Kara
2017-08-14 12:40 ` Jan Kara
2017-08-14 16:14 ` Dan Williams
2017-08-14 16:14 ` Dan Williams
[not found] ` <CAPcyv4hi_Y5Qj=h_Qf4Bcyv+EWBosa2gQT+-8ro3hPY9VMshSA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-15 8:37 ` Jan Kara
2017-08-15 8:37 ` Jan Kara
2017-08-15 8:37 ` Jan Kara
2017-08-15 23:50 ` Dan Williams
2017-08-15 23:50 ` Dan Williams
[not found] ` <CAPcyv4hFTn4Fz5o+Gm857mS-RA6WAVsf4CmwiLiK2O8w2_SamQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-16 13:57 ` Jan Kara
2017-08-16 13:57 ` Jan Kara
2017-08-16 13:57 ` Jan Kara
[not found] ` <20170814124059.GC17820-4I4JzKEfoa/jFM9bn6wA6Q@public.gmane.org>
2017-08-21 9:16 ` Peter Zijlstra
2017-08-21 9:16 ` Peter Zijlstra
2017-08-21 9:16 ` Peter Zijlstra
2017-08-14 21:46 ` Darrick J. Wong
2017-08-14 21:46 ` Darrick J. Wong
2017-08-14 21:46 ` Darrick J. Wong
2017-08-13 23:46 ` Dave Chinner
2017-08-13 23:46 ` Dave Chinner
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