cvs commit: src/sys/vm uma_core.c

[Robert Watson]

rwatson     2005-07-20 18:47:42 UTC

  FreeBSD src repository

  Modified files:
    sys/vm               uma_core.c 
  Log:
  Further UMA statistics related changes:
  
  - Add a new uma_zfree_internal() flag, ZFREE_STATFREE, which causes it to
    to update the zone's uz_frees statistic.  Previously, the statistic was
    updated unconditionally.
  
  - Use the flag in situations where a "real" free occurs: i.e., one where
    the caller is freeing an allocated item, to be differentiated from
    situations where uma_zfree_internal() is used to tear down the item
    during slab teardown in order to invoke its fini() method.  Also use
    the flag when UMA is freeing its internal objects.
  
  - When exchanging a bucket with the zone from the per-CPU cache when
    freeing an item, flush cache statistics back to the zone (since the
    zone lock and critical section are both held) to match the allocation
    case.
  
  MFC after: 3 days
  
  Revision  Changes    Path
  1.128     +27 -14    src/sys/vm/uma_core.c