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Date: Thu, 6 Dec 2001 09:12:45 +0900
Message-Id: <200112060012.JAA04482@asami.proc.flab.fujitsu.co.jp>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: Davide Libenzi <davidel@xmailserver.org>,
        Shuji YAMAMURA <yamamura@flab.fujitsu.co.jp>,
        lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] task_struct + kernel stack colouring ...
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Manfred Spraul writes:
 > Shuij, I don't understand why you need both a shift and a modulo: 
 > address % odd_number should generate a random distribution (i.e. all 
 > bits affect the result), even without the shift.

The lame duck reason was: previously it was intended to use within
Current macro, the division should be avoided such a frequently used
operation.

Currently the stack coloring operation is required only at process
creation time, division by a odd number is sufficient and we'll
experiment it.
--
Kouichi Kumon, Software Laboratory, Fujitsu Labs.
kumon@flab.fujitsu.co.jp
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