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From: Jaakko Heinonen <jh@FreeBSD.org>
Date: Wed, 15 Sep 2010 14:23:55 +0000 (UTC)
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Subject: cvs commit: src/sys/fs/devfs devfs.h devfs_devs.c devfs_vnops.c
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jh          2010-09-15 14:23:55 UTC

  FreeBSD src repository

  Modified files:
    sys/fs/devfs         devfs.h devfs_devs.c devfs_vnops.c 
  Log:
  SVN rev 212660 on 2010-09-15 14:23:55Z by jh
  
  Remove empty devfs directories automatically.
  
  devfs_delete() now recursively removes empty parent directories unless
  the DEVFS_DEL_NORECURSE flag is specified. devfs_delete() can't be
  called anymore with a parent directory vnode lock held because the
  possible parent directory deletion needs to lock the vnode. Thus we
  unlock the parent directory vnode in devfs_remove() before calling
  devfs_delete().
  
  Call devfs_populate_vp() from devfs_symlink() and devfs_vptocnp() as now
  directories can get removed.
  
  Add a check for DE_DOOMED flag to devfs_populate_vp() because
  devfs_delete() drops dm_lock before the VI_DOOMED vnode flag gets set.
  This ensures that devfs_populate_vp() returns an error for directories
  which are in progress of deletion.
  
  Reviewed by:    kib
  Discussed on:   freebsd-current (mostly silence)
  
  Revision  Changes    Path
  1.36      +4 -1      src/sys/fs/devfs/devfs.h
  1.64      +71 -8     src/sys/fs/devfs/devfs_devs.c
  1.194     +31 -8     src/sys/fs/devfs/devfs_vnops.c