[PATCH] UBI: introduce sequential counter

Artem Bityutskiy dedekind at infradead.org
Tue Feb 13 10:40:01 EST 2007


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)





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