git: HAMMER VFS - Force reading from the block device when live dedup is enabled

[Matthew Dillon]

commit a1ef9200bdb647f6277c6adf5e23c8dfee9d0b24
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Sat Apr 2 17:25:25 2011 -0700

    HAMMER VFS - Force reading from the block device when live dedup is enabled
    
    * Attempting to access the vnode's buffer cache is currently not MPSAFE
      and can cause crashes so don't try to do that.  Use the block device
      instead.
    
    * It is suggested but not required that vfs.hammer.double_buffer mode also
      be enabled if you use vfs.hammer.live.deup.

Summary of changes:
 sys/vfs/hammer/hammer_dedup.c |   15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a1ef9200bdb647f6277c6adf5e23c8dfee9d0b24


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