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[Qemu-block] [PATCH 0/6] block: Fix op blockers for inactive images

From: Kevin Wolf
Subject: [Qemu-block] [PATCH 0/6] block: Fix op blockers for inactive images
Date: Thu, 4 May 2017 18:52:35 +0200

Fam's image locking series introduced some special-casing in the file-posix
driver that avoids taking locks when the image is inactive. While this works,
it really isn't the job of the file-posix driver, but the core block layer
should consider that inactive nodes require a lot less permissions.

This series integrates op blockers with bdrv_inactivate/invalidate_cache() to
solve this problem gennerically, and removes the workaround in file-posix.

Kevin Wolf (6):
  migration: Unify block node activation error handling
  block: New BdrvChildRole.activate() for blk_resume_after_migration()
  block: Drop permissions when migration completes
  block: Inactivate parents before children
  block: Fix write/resize permissions for inactive images
  file-posix: Remove .bdrv_inactivate/invalidate_cache

 block.c                   | 76 ++++++++++++++++++++++++++++++++++++++++----
 block/block-backend.c     | 81 +++++++++++++++++++++++++++++++----------------
 block/file-posix.c        | 33 -------------------
 include/block/block.h     |  3 +-
 include/block/block_int.h |  6 ++++
 migration/migration.c     | 13 ++------
 migration/savevm.c        |  9 ++----
 qmp.c                     | 18 ++++-------
 8 files changed, 139 insertions(+), 100 deletions(-)


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