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From: Alan Cox <alc@FreeBSD.org>
Date: Sat, 24 Jul 2004 07:40:36 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org,
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Subject: cvs commit: src/sys/vm vm_map.c vm_map.h
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alc         2004-07-24 07:40:36 UTC

  FreeBSD src repository

  Modified files:
    sys/vm               vm_map.c vm_map.h 
  Log:
  Simplify vmspace initialization.  The bcopy() of fields from the old
  vmspace to the new vmspace in vmspace_exec() is mostly wasted effort.  With
  one exception, vm_swrss, the copied fields are immediately overwritten.
  Instead, initialize these fields to zero in vmspace_alloc(), eliminating a
  bcopy() from vmspace_exec() and a bzero() from vmspace_fork().
  
  Revision  Changes    Path
  1.345     +8 -11     src/sys/vm/vm_map.c
  1.112     +0 -3      src/sys/vm/vm_map.h