TAKE - make dmapi open_by_handle independent of mount event info

[Dean Roehrich <roehrich@xxxxxxx>]

Change dm_open_by_handle() to expect an open file descriptor on the
specified filesystem.  This removes the unsavory dependence between this
function and data from the mount event.  We'll make the libdm library
work a bit harder.


Date:  Tue Jun 18 14:00:32 PDT 2002
Workarea:  clink-eth.americas.sgi.com:/data/clink/a67/roehrich/2.4.x-xfs

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.x-xfs


Modid:  2.4.x-xfs:slinx:121882a
linux/fs/xfs_dmapi/dmapi_register.c - 1.13
linux/fs/xfs_dmapi/dmapi_private.h - 1.10
linux/fs/xfs_dmapi/dmapi_sysent.c - 1.7
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