From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Fri, 29 Aug 2008 14:19:55 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-core] [RFC][PATCH 2/3] Switch to handle-based
 fast	mutex owners
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To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: xenomai-core <xenomai@xenomai.org>

Jan Kiszka wrote:
> Probably. But it will definitely need full fast locking support inside
> xnsynch, which is basically about defining and maintaining a generic
> user-shared lock word from within xnsynch services that has at least a
> 'claimed' and a 'assignment pending' bit. Looks like we will not run out
> of work soon... ;)

The way xnsynch_sleep_on checks the owner field and retries for the
implementation of the lock stealing already furiously look like a mutex
compare and exchange...


-- 
                                                 Gilles.