cvs commit: src/sys/vm uma_core.c

Mohan Srinivasan mohans at
Sun Feb 11 03:13:55 UTC 2007

mohans      2007-02-11 03:13:54 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/vm               uma_core.c 
  MFC :
  Fix for a bug where only one process (of multiple) blocked on
  maxpages on a zone is woken up, with the rest never being woken up as
  a result of the ZFLAG_FULL flag being cleared. Wakeup all such blocked
  procsses instead. This change introduces a thundering herd, but since
  this should be relatively infrequent, optimizing this (by introducing
  a count of blocked processes, for example) may be premature.
  Reviewd by: ups@
  Revision    Changes    Path  +7 -2      src/sys/vm/uma_core.c

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