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git: HAMMER VFS - Expand vfs.hammer.debug_io capabilities


From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 16 Aug 2010 23:55:43 -0700 (PDT)

commit 24c8374a23b091f1eef91c6cf508ad88dfa99440
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date:   Mon Aug 16 23:18:09 2010 -0700

    HAMMER VFS - Expand vfs.hammer.debug_io capabilities
    
    * Add debugging capabilities which are able to distinguish IO requests
      which are cached from IO requests which have to go to the device.
    
    * vfs.hammer.debug_io bit 0 (i.e. the value 1) will use the new feature.
      This is for debugging only.

Summary of changes:
 sys/kern/vfs_bio.c             |    7 +++++++
 sys/kern/vfs_cluster.c         |    3 ++-
 sys/sys/buf.h                  |    2 +-
 sys/vfs/hammer/hammer_io.c     |   39 +++++++++++++++++++++++++++++++++++++++
 sys/vfs/hammer/hammer_ondisk.c |    2 +-
 sys/vfs/hammer/hammer_vnops.c  |    7 +++++++
 6 files changed, 57 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/24c8374a23b091f1eef91c6cf508ad88dfa99440


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