linux-kernel - Re: [PATCH v2 3/3] xfs: quietly ignore deprecated mount options

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Message-ID: <aPHX-Iq2KOccWw-h@infradead.org>
Date: Thu, 16 Oct 2025 22:45:28 -0700
From: Christoph Hellwig <hch@...radead.org>
To: "Darrick J. Wong" <djwong@...nel.org>
Cc: Vlastimil Babka <vbabka@...e.cz>, Carlos Maiolino <cem@...nel.org>,
	linux-kernel@...r.kernel.org, linux-xfs@...r.kernel.org,
	Oleksandr Natalenko <oleksandr@...alenko.name>,
	Pavel Reichl <preichl@...hat.com>,
	Thorsten Leemhuis <linux@...mhuis.info>
Subject: Re: [PATCH v2 3/3] xfs: quietly ignore deprecated mount options

On Wed, Oct 15, 2025 at 08:37:02AM -0700, Darrick J. Wong wrote:
> won't have to deal with attr1 structures anymore, because V5 always has
> attr2.

There's isn't really any attr1 structures anyway, it's really just
lex flexible (aka) dump partitioning of the space in the inode.

> I think you're right, we should keep this forever.  It's not that big of
> a deal to accumulate all the dead mount options via fsparam_dead, and
> probably a good tombstone to prevent accidental reuse in the future.

Agreed.