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From: Christoph Hellwig <hch@lst.de>
To: John Garry <john.g.garry@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>,
	Dave Chinner <david@fromorbit.com>,
	Ritesh Harjani <ritesh.list@gmail.com>,
	chandan.babu@oracle.com, djwong@kernel.org, dchinner@redhat.com,
	viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz,
	linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, catherine.hoang@oracle.com,
	martin.petersen@oracle.com
Subject: Re: [PATCH v4 00/14] forcealign for xfs
Date: Mon, 23 Sep 2024 14:07:15 +0200	[thread overview]
Message-ID: <20240923120715.GA13585@lst.de> (raw)
In-Reply-To: <cfdbb625-90b8-45d1-838b-bf5b670f49f1@oracle.com>

On Mon, Sep 23, 2024 at 09:16:22AM +0100, John Garry wrote:
> Outside the block allocator changes, most changes for forcealign are just 
> refactoring the RT big alloc unit checks. So - as you have said previously 
> - this so-called madness is already there. How can the sanity be improved?

As a first step by not making it worse, and that not only means not
spreading the rtextent stuff further, but more importantly not introducing
additional complexities by requiring to be able to write over the
written/unwritten boundaries created by either rtextentsize > 1 or
the forcealign stuff if you actually want atomic writes.

> To me, yes, there are so many "if (RT)" checks and special cases in the 
> code, which makes a maintenance headache.

Replacing them with a different condition doesn't really make that
any better.

  reply	other threads:[~2024-09-23 12:07 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-13 16:36 [PATCH v4 00/14] forcealign for xfs John Garry
2024-08-13 16:36 ` [PATCH v4 01/14] xfs: only allow minlen allocations when near ENOSPC John Garry
2024-08-23 16:28   ` Darrick J. Wong
2024-08-13 16:36 ` [PATCH v4 02/14] xfs: always tail align maxlen allocations John Garry
2024-08-23 16:31   ` Darrick J. Wong
2024-08-29 17:58     ` John Garry
2024-08-29 21:34       ` Darrick J. Wong
2024-08-13 16:36 ` [PATCH v4 03/14] xfs: simplify extent allocation alignment John Garry
2024-08-13 16:36 ` [PATCH v4 04/14] xfs: make EOF allocation simpler John Garry
2024-09-04 18:25   ` Ritesh Harjani
2024-09-05  7:51     ` John Garry
2024-08-13 16:36 ` [PATCH v4 05/14] xfs: introduce forced allocation alignment John Garry
2024-08-13 16:36 ` [PATCH v4 06/14] xfs: align args->minlen for " John Garry
2024-08-13 16:36 ` [PATCH v4 07/14] xfs: Introduce FORCEALIGN inode flag John Garry
2024-08-13 16:36 ` [PATCH v4 08/14] xfs: Update xfs_inode_alloc_unitsize() for forcealign John Garry
2024-08-13 16:36 ` [PATCH v4 09/14] xfs: Update xfs_setattr_size() " John Garry
2024-08-13 16:36 ` [PATCH v4 10/14] xfs: Do not free EOF blocks " John Garry
2024-08-13 16:36 ` [PATCH v4 11/14] xfs: Only free full extents " John Garry
2024-08-13 16:36 ` [PATCH v4 12/14] xfs: Unmap blocks according to forcealign John Garry
2024-08-23 16:35   ` Darrick J. Wong
2024-08-13 16:36 ` [PATCH v4 13/14] xfs: Don't revert allocated offset for forcealign John Garry
2024-08-13 16:36 ` [PATCH v4 14/14] xfs: Enable file data forcealign feature John Garry
2024-09-04 18:14 ` [PATCH v4 00/14] forcealign for xfs Ritesh Harjani
2024-09-04 23:20   ` Dave Chinner
2024-09-05  3:56     ` Ritesh Harjani
2024-09-05  6:33       ` Dave Chinner
2024-09-10  2:51         ` Ritesh Harjani
2024-09-16  6:33           ` Dave Chinner
2024-09-10 12:33         ` Ritesh Harjani
2024-09-16  7:03           ` Dave Chinner
2024-09-16 10:24             ` John Garry
2024-09-17 20:54               ` Darrick J. Wong
2024-09-17 23:34                 ` Dave Chinner
2024-09-17 22:12               ` Dave Chinner
2024-09-18  7:59                 ` John Garry
2024-09-23  2:57                   ` Dave Chinner
2024-09-23  3:33                     ` Christoph Hellwig
2024-09-23  8:16                       ` John Garry
2024-09-23 12:07                         ` Christoph Hellwig [this message]
2024-09-23 12:33                           ` John Garry
2024-09-24  6:17                             ` Christoph Hellwig
2024-09-24  9:48                               ` John Garry
2024-11-29 11:36                                 ` John Garry
2024-09-23  8:00                     ` John Garry
2024-09-05 10:15     ` John Garry
2024-09-05 21:47       ` Dave Chinner
2024-09-06 14:31         ` John Garry
2024-09-08 22:49           ` Dave Chinner
2024-09-09 16:18             ` John Garry
2024-09-16  5:25               ` Dave Chinner
2024-09-16  9:44                 ` John Garry
2024-09-17 22:27                   ` Dave Chinner
2024-09-18 10:12                     ` John Garry
2024-11-14 12:48                       ` Long Li
2024-11-14 16:22                         ` John Garry
2024-11-14 20:07                         ` Dave Chinner
2024-11-15  8:14                           ` John Garry
2024-11-15 11:20                           ` Long Li

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