Please pull logfs tree for fixes

["Jörn Engel" <joern@logfs.org>]

Another set of fixes.  Two of them are security relevant.  But given
that an attacker needs mount access and few people have logfs compiled
in, that's unlikely to be a huge issue.

 gc.c        |    8 ++++++
 journal.c   |   29 ++++++++++++++---------
 logfs.h     |   15 ++++++++++--
 readwrite.c |   75 +++++++++++++++++++++++++++++++++---------------------------
 segment.c   |    8 ------
 super.c     |   11 +++++++-
 6 files changed, 91 insertions(+), 55 deletions(-)

Jörn

-- 
More computing sins are committed in the name of efficiency (without
necessarily achieving it) than for any other single reason - including
blind stupidity.
-- W. A. Wulf