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From: Artem Bityutskiy <dedekind1@gmail.com>
To: Hyunchul Lee <hyc.lee@gmail.com>
Cc: Richard Weinberger <richard@nod.at>,
	linux-mtd@lists.infradead.org, Hyunchul Lee <cheol.lee@lge.com>,
	kernel-team@lge.com
Subject: Re: [PATCH 0/3] ubifs: add lz4hc compression
Date: Wed, 01 Mar 2017 12:35:38 +0200	[thread overview]
Message-ID: <1488364538.3583.6.camel@gmail.com> (raw)
In-Reply-To: <20170301011224.GC15972@Hyeoncheol-PC00>

On Wed, 2017-03-01 at 10:12 +0900, Hyunchul Lee wrote:
> yes, it is an in-memory inode. but i think that there can be problem
> of 
> backward compatibility. for example, if ubifs_ino_node's compr_type
> is
> 4 in flash, the previous version of ubifs could misinterpret it as 0,
> because ubifs_inode's compr_type(2-bit) is assigned
> ubifs_ino_nodes' compr_type at ubifs_iget.

Good point. I guess changing the in-memory compr_type to something
wider right away would be a good idea, even if no new compressors are
added.

  reply	other threads:[~2017-03-01 10:36 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-28  5:16 [PATCH 0/3] ubifs: add lz4hc compression Hyunchul Lee
2017-02-28  5:16 ` [PATCH 1/3] ubifs: add lz4hc compressor Hyunchul Lee
2017-02-28  5:16 ` [PATCH 2/3] ubifs: change type of ubifs_inode's compr_type to unsigend:16 Hyunchul Lee
2017-02-28 10:17 ` [PATCH 0/3] ubifs: add lz4hc compression Artem Bityutskiy
2017-03-01  1:12   ` Hyunchul Lee
2017-03-01 10:35     ` Artem Bityutskiy [this message]
2017-03-03  8:08 ` Richard Weinberger
2017-03-03 11:07   ` Hyunchul Lee
2017-03-03 12:00     ` Artem Bityutskiy
2017-03-03 12:07       ` Richard Weinberger

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