From: Artem Bityutskiy <dedekind@infradead.org>
To: haver@vnet.ibm.com
Cc: MTDML <linux-mtd@lists.infradead.org>
Subject: Re: [PATCH] UBI: introduce sequential counter
Date: Tue, 13 Feb 2007 17:40:01 +0200 [thread overview]
Message-ID: <1171381201.17314.60.camel@sauron> (raw)
In-Reply-To: <1171379484.4094.5.camel@localhost.localdomain>
On Tue, 2007-02-13 at 16:11 +0100, Frank Haverkamp wrote:
> The 64bit nature could complicate the compare code a little, and
> we are limited to those 4KiB as you know. Mhm. It should be than
> a comparission of a 64bit value instead of a 32bit one.
With current 32 bit versions you have to take care of overflow. For
example, version 1 is newer then version 0xFFFFFFFA. I doubt comparing 2
64-bit variable with _no_ need to look it overflow is more difficult and
takes more code.
These 32 bit overflowing counters really introduce mess.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
prev parent reply other threads:[~2007-02-13 16:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-08 20:02 [PATCH] UBI: introduce sequential counter Artem Bityutskiy
2007-02-08 22:16 ` Josh Boyer
2007-02-09 5:50 ` Jörn Engel
2007-02-09 9:19 ` Artem Bityutskiy
2007-02-09 9:12 ` Artem Bityutskiy
2007-02-09 13:12 ` Josh Boyer
2007-02-09 14:40 ` Artem Bityutskiy
2007-02-09 14:50 ` Josh Boyer
2007-02-09 14:54 ` Artem Bityutskiy
2007-02-13 15:11 ` Frank Haverkamp
2007-02-13 15:40 ` Artem Bityutskiy [this message]
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