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From: Alan Cox <alc@FreeBSD.org>
Date: Sat, 30 Oct 2010 16:09:15 +0000 (UTC)
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X-FreeBSD-CVS-Branch: RELENG_7
Subject: cvs commit: src/sys/vm vm_map.c
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alc         2010-10-30 16:09:15 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/vm               vm_map.c 
  Log:
  SVN rev 214558 on 2010-10-30 16:09:15Z by alc
  
  MFC r213408
    If vm_map_find() is asked to allocate a superpage-aligned region of
    virtual addresses that is greater than a superpage in size but not a
    multiple of the superpage size, then vm_map_find() is not always
    expanding the kernel pmap to support the last few small pages being
    allocated.  Previously, we grew the kernel page table in
    vm_map_findspace() when we found the first available virtual address.
    Now, instead, we defer the call to pmap_growkernel() until we are
    committed to a range of virtual addresses in vm_map_insert().
  
  Revision    Changes    Path
  1.388.2.12  +8 -14     src/sys/vm/vm_map.c