ext[23]_rename do not update [cm]time of target directory

[Andreas Schwab]

POSIX says in
<http://www.opengroup.org/onlinepubs/009695399/functions/rename.html>:

  Upon successful completion, rename() shall mark for update the st_ctime
  and st_mtime fields of the parent directory of each file.

ext[23]_rename fail to update st_[cm]time of the target directory if the
target file already existed.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab at suse.de
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
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