[Qemu-block] [PATCH v6 0/4] Dynamic module loading for block drivers

[Colin Lord]

I'm sending one more version of this series. v5 didn't seem to need any
huge makeovers, but I found a small bug in it so I'm hoping it hasn't
been committed yet. In v5, if a user explicitly specified the driver to
use, eg driver=gluster, and the driver was modularized, it was not
correctly detected and qemu would exit since it could not find the
driver. This series fixes that.

In addition, the two patches I sent to remove unneeded lines in the
Makefile and to modularize nfs are included in this series.

v6:
- Fix bug so that users can specify a modularized driver on the cli
  without qemu exiting
- Remove extra lines from Makefile
- Add patch to modularize NFS

v5:
- No format drivers are modularized, therefore the probe functions are
  all being left completely untouched.
- Remove dmg from block-obj-m since it is not a target of the
  modularization effort.
- Modify module_block.py to only include the library name and protocol
  name fields in the generated struct. The other fields are no longer
  necessary for the drivers that are being modularized.

v4:
- Fix indentation of the generated header file module_block.h
- Drivers and probe functions are now all located in the block/
  directory, rather than being split between block/ and block/probe/. In
  addition the header files for each probe/driver pair are in the block/
  directory, not the include/block/driver/ directory (which no longer
  exists).
- Since the probe files are in block/ now, they follow the naming
  pattern of format-probe.c
- Renamed crypto probe file to be crypto-probe.c, luks is no longer in
  the filename
- Fixed formatting of parallels_probe() function header
- Enforced consistent naming convention for the probe functions. They
  now follow the pattern bdrv_format_probe().

Colin Lord (3):
  blockdev: prepare iSCSI block driver for dynamic loading
  blockdev: Add dynamic module loading for block drivers
  blockdev: Modularize nfs block driver

Marc Mari (1):
  blockdev: Add dynamic generation of module_block.h

 Makefile                        |  10 ++--
 block.c                         |  62 ++++++++++++++++++++---
 block/Makefile.objs             |   4 +-
 block/iscsi.c                   |  36 --------------
 configure                       |   4 +-
 include/qemu/module.h           |   3 ++
 scripts/modules/module_block.py | 108 ++++++++++++++++++++++++++++++++++++++++
 util/module.c                   |  38 ++++----------
 vl.c                            |  38 ++++++++++++++
 9 files changed, 226 insertions(+), 77 deletions(-)
 create mode 100644 scripts/modules/module_block.py

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2.5.5