linux-kernel - Re: [PATCH] ubi: fix correct rb_tree node comparison in add

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Date:	Wed, 25 Jun 2014 23:11:46 +0200
From:	Richard Weinberger <richard@....at>
To:	Heiko Schocher <hs@...x.de>, linux-mtd@...ts.infradead.org
CC:	Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	Mike Snitzer <snitzer@...hat.com>, Wolfgang Denk <wd@...x.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ubi: fix correct rb_tree node comparison in add_vol

Am 24.06.2014 09:25, schrieb Heiko Schocher:
> Commit 604b592e6fd3c98f21435e1181ba7723ffc24715 ("UBI: fix rb_tree node comparison in add_map")
> 
> introduced problems with attaching ubi fastmap images,
> created with older kernel.
> 
> As in ubi_find_av() from attach.c is
> [...]
>                 if (vol_id > av->vol_id)
>                         p = p->rb_left;
>                 else
>                         p = p->rb_right;
> 
> sync this logic also in add_vol() with this.
> 
> With this patch attaching older ubi images works again.
> 
> Signed-off-by: Heiko Schocher <hs@...x.de>

Thanks a lot for fixing this!

Acked-by: Richard Weinberger <richard@....at>

Thanks,
//richard
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