From owner-cvs-all  Mon Jul 12 20:33: 1 1999
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From: Alan Cox <alc@FreeBSD.org>
Date: Mon, 12 Jul 1999 20:32:18 -0700 (PDT)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/i386/include atomic.h
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alc         1999/07/12 20:32:18 PDT

  Modified files:
    sys/i386/include     atomic.h 
  Log:
  Changed the implementation of the primitives to guarantee atomicity
  with respect to interrupts on UP systems.  (The upgrade from gcc 2.7.x
  to egcs 1.1.2 produced at least one non-atomic code sequence in
  swap_pager_getpages.)
  
  In addition, the primitives are now SMP-safe, but only on SMPs.  (For
  portability between SMPs and UPs, modules are compiled with the SMP-safe
  versions.)
  
  Submitted by:	dillon and myself
  Reviewed by:	bde
  
  Revision  Changes    Path
  1.2       +42 -22    src/sys/i386/include/atomic.h



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