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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Wed, 29 Dec 2010 11:39:15 +0000 (UTC)
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Subject: cvs commit: src/sys/dev/md md.c
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kib         2010-12-29 11:39:15 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/md           md.c 
  Log:
  SVN rev 216793 on 2010-12-29 11:39:15Z by kib
  
  Add sysctl vm.md_malloc_wait, non-zero value of which switches malloc-backed
  md(4) to using M_WAITOK malloc calls.
  
  M_NOWAITOK allocations may fail when enough memory could be freed, but not
  immediately. E.g. SU UFS becomes quite unhappy when metadata write return
  error, that would happen for failed malloc() call.
  
  Reported and tested by: pho
  MFC after:      1 week
  
  Revision  Changes    Path
  1.191     +8 -3      src/sys/dev/md/md.c