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From: Matt Dillon <dillon@FreeBSD.ORG>
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Date: Thu, 21 Jan 1999 02:06:24 -0800 (PST)
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To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG
Subject: cvs commit: src/sys/vm vm_page.h
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dillon      1999/01/21 02:06:24 PST

  Modified files:
    sys/vm               vm_page.h 
  Log:
      The TAILQ hashq has been turned into a singly-linked=list link,
      reducing the size of vm_page_t.
  
      SWAPBLK_NONE and SWAPBLK_MASK are defined here.  These actually are
      more generalized then their names imply, but their placement is somewhat
      of a legacy issue from a prior test version of this code that put
      the swapblk in the vm_page_t structure.  That test code was eventually
      thrown away.  The legacy remains.
  
      Added vm_page_flash() inline.  Similar to vm_page_wakeup() except that
      it does not clear PG_BUSY ( one assumes that PG_BUSY is already clear ).
      Used by a number of routines to wakeup waiters.
  
      Collapsed some of the code in inline calls to make other inline calls.
      GCC will optimize this well and it reduces duplication.
  
      vm_page_free() and vm_page_free_zero() inlines added to convert to
      the proper vm_page_free_toq() call.
  
      vm_page_sleep_busy() inline added, replacing vm_page_sleep() ( which has
      been removed ).  This implements a much more optimizable page-waiting
      function.
  
  Revision  Changes    Path
  1.51      +1 -1      src/sys/vm/vm_page.h

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