cvs commit: src/sys/vm vm_contig.c vm_pageout.c vm_pageout.h

[John Baldwin]

jhb         2008-09-17 20:30:42 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/vm               vm_contig.c vm_pageout.c vm_pageout.h 
  Log:
  SVN rev 183124 on 2008-09-17 20:30:42Z by jhb
  
  MFC: 173901,173918
  - Tidy up: Add comments.  Eliminate the pointless
    malloc_type_allocated(..., 0) calls that occur when contigmalloc() has
    failed.  Eliminate the acquisition and release of the page queues lock
    from vm_page_release_contig().  Rename contigmalloc2() to
    contigmapping(), reflecting what it does.
  - Make contigmalloc(9)'s page laundering more robust.  Specifically, use
    vm_pageout_fallback_object_lock() in vm_contig_launder_page() to better
    handle a lock-ordering problem.  Consequently, trylock's failure on the
    page's containing object no longer implies that the page cannot be
    laundered.
  
  Approved by:    re (kib), alc
  
  Revision   Changes    Path
  1.63.2.1   +29 -22    src/sys/vm/vm_contig.c
  1.292.2.3  +1 -1      src/sys/vm/vm_pageout.c
  1.41.10.1  +1 -0      src/sys/vm/vm_pageout.h