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Subject: Re: [PATCH 0/3] ubifs: add lz4hc compression
From: Artem Bityutskiy <dedekind1@gmail.com>
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To: Hyunchul Lee <hyc.lee@gmail.com>, Richard Weinberger <richard@nod.at>
Cc: linux-mtd@lists.infradead.org, Hyunchul Lee <cheol.lee@lge.com>
Date: Tue, 28 Feb 2017 12:17:05 +0200
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On Tue, 2017-02-28 at 14:16 +0900, Hyunchul Lee wrote:
> Another compression type cannot be added any more in respect that
> type of
> ubifs_inode's compr_type is "unsigned:2" and there are 4 compression
> types.  There may be overflow in assignment to compr_type, and
> prevision 
> version of ubifs is trying to decompress file with wrong compression
> type.

But this is just an in-memory inode structure, and you can change it,
just increase the size of 'compr_type'.