From: Christoph Hellwig <hch@infradead.org>
To: "Darrick J. Wong" <djwong@kernel.org>
Cc: hch@lst.de, cem@kernel.org, stable@vger.kernel.org,
linux-xfs@vger.kernel.org
Subject: Re: [PATCH 1/6] xfs: fix xfs_rtrmapbt_mem_cursor for non-rmap filesystems
Date: Tue, 18 Aug 2026 23:16:39 -0700 [thread overview]
Message-ID: <aoVKR4HmS3Hi7WBg@infradead.org> (raw)
In-Reply-To: <178659861897.833922.17703139818760252058.stgit@frogsfrogsfrogs>
On Wed, Aug 12, 2026 at 10:25:40PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <djwong@kernel.org>
>
> It's possible to construct an in-memory rtrmap btree for filesystems
> that don't have the rmap feature enabled. The kernel doesn't do this,
> but xfs_repair will, if asked to reindex a filesystem that has rtreflink
> enabled but not rtrmap. Therefore, we must create the cursor with
> enough levels to handle a maximally sized btree possible.
Should repair initialize m_rtrmap_maxlevels instead of overallocating
in the kernel?
next prev parent reply other threads:[~2026-08-19 6:16 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-13 5:24 [PATCHSET 2/2] xfs: LLM-inspired bug fixes, part 6 Darrick J. Wong
2026-08-13 5:25 ` [PATCH 1/6] xfs: fix xfs_rtrmapbt_mem_cursor for non-rmap filesystems Darrick J. Wong
2026-08-19 6:16 ` Christoph Hellwig [this message]
2026-08-13 5:25 ` [PATCH 2/6] xfs: preserve owner on in-memory btree creation Darrick J. Wong
2026-08-19 6:17 ` Christoph Hellwig
2026-08-13 5:26 ` [PATCH 3/6] xfs: don't leak new_bp if xfs_btree_bload_drop_buf fails Darrick J. Wong
2026-08-19 6:20 ` Christoph Hellwig
2026-08-13 5:26 ` [PATCH 4/6] xfs: actually recover intended file sizes in xfs_xmi_item_recover_intent Darrick J. Wong
2026-08-19 6:21 ` Christoph Hellwig
2026-08-13 5:26 ` [PATCH 5/6] xfs: don't modify file attributes or poke fsnotify for dry runs Darrick J. Wong
2026-08-19 6:24 ` Christoph Hellwig
2026-08-13 5:26 ` [PATCH 6/6] xfs: fix bnobt repair space reservation disposal failure Darrick J. Wong
2026-08-19 6:24 ` Christoph Hellwig
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