From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: cem@kernel.org, stable@vger.kernel.org, linux-xfs@vger.kernel.org
Subject: Re: [PATCH 08/14] xfs: fix maximum atomic cow length computation
Date: Mon, 21 Sep 2026 22:21:21 -0700 [thread overview]
Message-ID: <arIQUbrLZNVv10Mo@infradead.org> (raw)
In-Reply-To: <178996120721.181988.7950955477687457877.stgit@frogsfrogsfrogs>
On Sun, Sep 20, 2026 at 11:17:04PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
>
> LOLLM says rounddown_pow_of_two acts funny if you pass it 0, so we need
> to catch this possibility because maybe the filesystem doesn't support
> software atomic writes at all.
Can this happen? Shouldn't the xfs_can_sw_atomic_write() above guard
against this?
next prev parent reply other threads:[~2026-09-22 5:21 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 6:13 [PATCHSET] xfs: LLM-inspired bug fixes, part 16 Darrick J. Wong
2026-09-21 6:15 ` [PATCH 01/14] xfs: fix missing xfs_qm_adjust_dqlimits call in quotacheck repair Darrick J. Wong
2026-09-22 5:14 ` Christoph Hellwig
2026-09-21 6:15 ` [PATCH 02/14] xfs: online quotacheck must dirty dquot if enforcement adjustments needed Darrick J. Wong
2026-09-22 5:14 ` Christoph Hellwig
2026-09-22 18:02 ` Darrick J. Wong
2026-09-21 6:15 ` [PATCH 03/14] xfs: fix buffer overruns in xfs_ioc_attr_list Darrick J. Wong
2026-09-22 5:15 ` Christoph Hellwig
2026-09-22 17:31 ` Darrick J. Wong
2026-09-21 6:16 ` [PATCH 04/14] xfs: clean up after failed metafile relinking Darrick J. Wong
2026-09-22 5:17 ` Christoph Hellwig
2026-09-22 17:33 ` Darrick J. Wong
2026-09-21 6:16 ` [PATCH 05/14] xfs: pass xfs_trans_resv object to reservation calculation helpers Darrick J. Wong
2026-09-22 5:18 ` Christoph Hellwig
2026-09-22 17:29 ` Darrick J. Wong
2026-09-22 17:34 ` Darrick J. Wong
2026-09-21 6:16 ` [PATCH 06/14] xfs: fix xfs_rename_space_res for non-pptr filesystems Darrick J. Wong
2026-09-22 5:20 ` Christoph Hellwig
2026-09-22 17:36 ` Darrick J. Wong
2026-09-21 6:16 ` [PATCH 07/14] xfs: fix ondisk symlink target validation in xrep_dinode_check_dfork Darrick J. Wong
2026-09-22 5:20 ` Christoph Hellwig
2026-09-22 20:42 ` Dave Chinner
2026-09-21 6:17 ` [PATCH 08/14] xfs: fix maximum atomic cow length computation Darrick J. Wong
2026-09-22 5:21 ` Christoph Hellwig [this message]
2026-09-22 6:53 ` Darrick J. Wong
2026-09-21 6:17 ` [PATCH 09/14] xfs: add missing healthmon trace strings Darrick J. Wong
2026-09-22 5:21 ` Christoph Hellwig
2026-09-21 6:17 ` [PATCH 10/14] xfarray: don't crash when sorting if array element crosses a folio Darrick J. Wong
2026-09-22 5:22 ` Christoph Hellwig
2026-09-22 17:53 ` Darrick J. Wong
2026-09-23 4:39 ` Christoph Hellwig
2026-09-21 6:17 ` [PATCH 11/14] xfarray: don't allow users to unset in the middle of an array Darrick J. Wong
2026-09-22 5:23 ` Christoph Hellwig
2026-09-22 6:47 ` Darrick J. Wong
2026-09-22 18:14 ` Darrick J. Wong
2026-09-21 6:18 ` [PATCH 12/14] xfs: don't allow sorting sparse arrays Darrick J. Wong
2026-09-22 5:24 ` Christoph Hellwig
2026-09-22 18:07 ` Darrick J. Wong
2026-09-21 6:18 ` [PATCH 13/14] xfs: simply the free space btree repair code Darrick J. Wong
2026-09-22 5:24 ` Christoph Hellwig
2026-09-21 6:18 ` [PATCH 14/14] xfarray: warn against sorting arrays with identical elements Darrick J. Wong
2026-09-22 5:25 ` Christoph Hellwig
2026-09-22 18:10 ` Darrick J. Wong
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