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Date: Wed, 13 Dec 2000 00:18:36 -0500 (EST)
From: Bosko Milekic <bmilekic@technokratis.com>
Subject: Re: cvs commit: src/sys/sys mbuf.h
In-reply-to: <200012130513.eBD5D4s83055@freefall.freebsd.org>
To: Bosko Milekic <bmilekic@FreeBSD.org>
Cc: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
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  Sincere appologies, should have also said:

  Reported By: alfred

On Tue, 12 Dec 2000, Bosko Milekic wrote:

> bmilekic    2000/12/12 21:13:03 PST
> 
>   Modified files:
>     sys/sys              mbuf.h 
>   Log:
>   Eliminate a race in MEXTFREE(). The reference counter decrement and test
>   was not atomic. We now make sure that we free the ext buf if the reference
>   count is about to reach 0 but also make sure that nobody else has done it
>   before us.
>   
>   While I'm here, change refcnt to u_int (from long). This fixes a compiler
>   warning regarding use of atomic_cmpset_long on i386.
>   
>   Submitted by: jasone
>   Reviewed by: jlemon, jake
>   
>   Revision  Changes    Path
>   1.65      +17 -12    src/sys/sys/mbuf.h
> 
> 
> 


  Bosko Milekic
  bmilekic@technokratis.com




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