[Qemu-devel] [PATCH v7 00/20] block: Image locking series for 2.8

[Fam Zheng <famz@redhat.com>]

v7: - Rebase.
    - Address comments from Kevin and Max.
    - Option rename: "exclusive" -> "auto". [Kevin]
    - Option placement: "root BDS" -> "node".
      It's still a bit controversy where the option should go, but so far it
      seems per node is the safest.
    - Assert in bdrv_open_common that lock flags don't conflict. [Kevin]
    - Skip qemu_dup patches as they are already merged.
    - Fix a wrong assertion in raw_reopen_to_unlock.
    - Put "static int" to the same line in raw-posix.c. [Kevin]
    - Remove superfluous blank lines.
    - Add comment in raw posix's sophisticated reopen code. [Kevin]
    - .bdrv_lockf is kept on the contrary to separate .bdrv_lock and
      .bdrv_unlock, because having the BdrvLockfCmd in the interface makes
      implementing the reopen logic as is done in this series much easier.
    - Drop the unnecessary mirror target locking patch. [Max]
    - Add a patch to let 130 work with image locking.

Fam Zheng (20):
  block: Add flag bits for image locking
  qapi: Add lock-mode in blockdev-add options
  block: Add and parse "lock-mode" option for image locking
  block: Introduce image file locking
  osdep: Add qemu_lock_fd and qemu_unlock_fd
  raw-posix: Add image locking support
  qemu-io: Add "-L" option for BDRV_O_NO_LOCK
  qemu-img: Add "-L" option to sub commands
  qemu-img: Update documentation of "-L" option
  qemu-nbd: Add "--no-lock/-L" option
  block: Don't lock drive-backup target image in none mode
  qemu-iotests: 046: Move version detection out from verify_io
  qemu-iotests: Wait for QEMU processes before checking image in 091
  qemu-iotests: 030: Disable image locking when checking test image
  iotests: 087: Disable image locking in cases where file is shared
  iotests: 130: Check image info locklessly
  iotests: Disable image locking in 085
  tests: Use null-co:// instead of /dev/null
  block: Turn on image locking by default
  qemu-iotests: Add test case 153 for image locking

 block.c                    |  80 +++++++++
 block/raw-posix.c          | 298 ++++++++++++++++++++++++++++++-
 blockdev.c                 |  14 ++
 include/block/block.h      |  14 +-
 include/block/block_int.h  |   5 +
 include/qemu/osdep.h       |   2 +
 qapi/block-core.json       |  19 +-
 qemu-img-cmds.hx           |  44 ++---
 qemu-img.c                 |  92 ++++++++--
 qemu-img.texi              |   3 +
 qemu-io.c                  |  24 ++-
 qemu-nbd.c                 |   7 +-
 qemu-nbd.texi              |   2 +
 qemu-options.hx            |   1 +
 tests/drive_del-test.c     |   2 +-
 tests/nvme-test.c          |   2 +-
 tests/qemu-iotests/030     |   2 +-
 tests/qemu-iotests/046     |  22 +--
 tests/qemu-iotests/085     |   3 +-
 tests/qemu-iotests/087     |   6 +
 tests/qemu-iotests/091     |   3 +
 tests/qemu-iotests/091.out |   1 +
 tests/qemu-iotests/130     |   4 +-
 tests/qemu-iotests/130.out |   4 +-
 tests/qemu-iotests/153     | 197 +++++++++++++++++++++
 tests/qemu-iotests/153.out | 426 +++++++++++++++++++++++++++++++++++++++++++++
 tests/qemu-iotests/group   |   1 +
 tests/usb-hcd-uhci-test.c  |   2 +-
 tests/usb-hcd-xhci-test.c  |   2 +-
 tests/virtio-blk-test.c    |   2 +-
 tests/virtio-scsi-test.c   |   4 +-
 util/osdep.c               |  29 +++
 32 files changed, 1246 insertions(+), 71 deletions(-)
 create mode 100755 tests/qemu-iotests/153
 create mode 100644 tests/qemu-iotests/153.out

-- 
2.7.4