linux-kernel - Re: [PATCH] f2fs: introduce on-disk layout version checking functionality

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Message-ID: <20160520075849.GA8067@infradead.org>
Date:	Fri, 20 May 2016 00:58:49 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Viacheslav Dubeyko <slava@...eyko.com>
Cc:	Jaegeuk Kim <jaegeuk@...nel.org>, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	Vyacheslav.Dubeyko@...t.com, Cyril.Guyot@...t.com,
	Adam.Manzanares@...t.com, Damien.LeMoal@...t.com
Subject: Re: [PATCH] f2fs: introduce on-disk layout version checking
 functionality

Please don't do the mistake of versioning the structure, but instead
use feature flags, similar to what extN and modern XFS file systems do.