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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Thu, 12 Mar 2009 12:43:56 +0000 (UTC)
To: cvs-src-old@freebsd.org
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Subject: cvs commit: src/sys/ufs/ffs ffs_vfsops.c ffs_vnops.c
 src/sys/ufs/ufs inode.h
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kib         2009-03-12 12:43:56 UTC

  FreeBSD src repository

  Modified files:
    sys/ufs/ffs          ffs_vfsops.c ffs_vnops.c 
    sys/ufs/ufs          inode.h 
  Log:
  SVN rev 189737 on 2009-03-12 12:43:56Z by kib
  
  The non-modifying EA VOPs are executed with only shared vnode lock taken.
  Provide a custom lock around initializing and tearing down EA area,
  to prevent both memory leaks and double-free of it. Count the number
  of EA area accessors.
  
  Lock protocol requires either holding exclusive vnode lock to modify
  i_ea_area, or shared vnode lock and owning IN_EA_LOCKED flag in i_flag.
  
  Noted by:       YAMAMOTO, Taku <taku tackymt homeip net>
  Tested by:      pho (previous version)
  MFC after:      2 weeks
  
  Revision  Changes    Path
  1.363     +1 -0      src/sys/ufs/ffs/ffs_vfsops.c
  1.187     +90 -63    src/sys/ufs/ffs/ffs_vnops.c
  1.55      +3 -0      src/sys/ufs/ufs/inode.h