git: HAMMER - Stabilize and refactor volume removal

[Michael Neumann <mneumann@xxxxxxxxxxxxxxxxxxxxxxx>]

commit c47d84e8a8c736e7c9f793dba11edc6f233a22c5
Author: Michael Neumann <mneumann@ntecs.de>
Date:   Sun Dec 13 19:56:55 2009 +0100

    HAMMER - Stabilize and refactor volume removal
    
    * Correctly handle already freed layer1 entries.
    * Correclty avoid reallocation on the volume to be removed
      during reblocking.
    * Erase volume header after removal so that trying to mount it
      afterwards will fail (otherwise mount will silently use it).

Summary of changes:
 sys/vfs/hammer/hammer_blockmap.c |   23 +++---
 sys/vfs/hammer/hammer_volume.c   |  167 ++++++++++++++++++++++++--------------
 2 files changed, 119 insertions(+), 71 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/c47d84e8a8c736e7c9f793dba11edc6f233a22c5


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