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From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date: Tue, 11 May 2010 22:29:00 +0000 (UTC)
To: cvs-src-old@freebsd.org
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Subject: cvs commit: src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs
	vdev_geom.c
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pjd         2010-05-11 22:29:00 UTC

  FreeBSD src repository

  Modified files:
    sys/cddl/contrib/opensolaris/uts/common/fs/zfs vdev_geom.c 
  Log:
  SVN rev 207936 on 2010-05-11 22:29:00Z by pjd
  
  Eventhough r203504 eliminates taste traffic provoked by vdev_geom.c,
  ZFS still like to open all vdevs, close them and open them again,
  which in turn provokes taste traffic anyway.
  
  I don't know of any clean way to fix it, so do it the hard way - if we can't
  open provider for writing just retry 5 times with 0.5 pauses. This should
  elimitate accidental races caused by other classes tasting providers created on
  top of our vdevs.
  
  MFC after:      3 days
  Reported by:    James R. Van Artsdalen <james-freebsd-fs2@jrv.org>
  Reported by:    Yuri Pankov <yuri.pankov@gmail.com>
  
  Revision  Changes    Path
  1.20      +10 -1     src/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c