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Date:      Mon, 07 May 2001 08:35:27 -0700 (PDT)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Brian Somers <brian@FreeBSD.org>
Cc:        cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org
Subject:   RE: cvs commit: src/sys/dev/digi digi.c digi.h digi_isa.c digi_p
Message-ID:  <XFMail.010507083527.jhb@FreeBSD.org>
In-Reply-To: <200105071113.f47BDDN96189@freefall.freebsd.org>

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On 07-May-01 Brian Somers wrote:
> brian       2001/05/07 04:13:13 PDT
> 
>   Modified files:
>     sys/dev/digi         digi.c digi.h digi_isa.c digi_pci.c 
>   Log:
>   Change COM_LOCK/COM_UNLOCK to a regular mutex - still conditional on
>   SMP being defined.

Woah.  COM_LOCK is a special case due to sio/cy using fast interrupt handlers,
and if digi is using a fast interrupt handler, then it needs to be a spin
mutex, not a regular mutex.  Also, mutexes should be on all the time, not just
#ifdef SMP.  Note that COM_LOCK is always defined now.

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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