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Date:      Tue, 06 Feb 2001 12:03:03 +0100
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Boris Popov <bp@butya.kz>
Cc:        freebsd-arch@FreeBSD.ORG, freebsd-fs@FreeBSD.ORG
Subject:   Re: vnode interlock API 
Message-ID:  <33407.981457383@critter>
In-Reply-To: Your message of "Tue, 06 Feb 2001 17:00:03 %2B0600." <Pine.BSF.4.21.0102061638280.82511-100000@lion.butya.kz> 

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Sounds like something which should have been done long time ago...

In message <Pine.BSF.4.21.0102061638280.82511-100000@lion.butya.kz>, Boris Popov writes:
>	Hello,
>
>	Few months ago simple locks used for vnode interlock were replaced
>by mutexes. It causes additional pain for externally maintained
>filesystems and lowers portability of the code between -stable and
>-current.
>
>	So, I suggest to introduce two macro definitions which will hide
>implementation details for interlocks:
>
>#define VI_LOCK(vp)		mtx_enter(&(vp)->v_interlock, MTX_DEF)
>#define VI_UNLOCK(vp)		mtx_exit(&(vp)->v_interlock, MTX_DEF)
>
>	for RELENG_4 they will look like this:
>
>#define VI_LOCK(vp)		simple_lock(&(vp)->v_interlock)
>#define VI_UNLOCK(vp)		simple_unlock(&(vp)->v_interlock)
>
>	Any comments, suggestions ?
>
>--
>Boris Popov
>http://www.butya.kz/~bp/
>
>
>
>To Unsubscribe: send mail to majordomo@FreeBSD.org
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>

--
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.


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