[qemu-xen master] Merge remote-tracking branch 'remotes/ericb/tags/pull-bitmaps-2020-08-03' into staging

[patchbot@xxxxxxx]

commit 45a150aa2b3492acf6691c7bdbeb25a8545d8345
Merge: 6c5dfc9ccb643a0d50fdec9f10806b14960571d1 
edadc99a2ee90daeaaf4fba21d623ec8efe7c8e6
Author:     Peter Maydell <peter.maydell@xxxxxxxxxx>
AuthorDate: Mon Aug 3 15:13:49 2020 +0100
Commit:     Peter Maydell <peter.maydell@xxxxxxxxxx>
CommitDate: Mon Aug 3 15:13:49 2020 +0100

    Merge remote-tracking branch 'remotes/ericb/tags/pull-bitmaps-2020-08-03' 
into staging
    
    bitmaps patches for 2020-08-03
    
    - fix bitmap migration involving read-only bitmap from backing chain
    
    # gpg: Signature made Mon 03 Aug 2020 15:06:51 BST
    # gpg:                using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
    # gpg: Good signature from "Eric Blake <eblake@xxxxxxxxxx>" [full]
    # gpg:                 aka "Eric Blake (Free Software Programmer) 
<ebb9@xxxxxxx>" [full]
    # gpg:                 aka "[jpeg image of size 6874]" [full]
    # Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 
436A
    
    * remotes/ericb/tags/pull-bitmaps-2020-08-03:
      iotests/169: Test source cont with backing bmap
      qcow2: Release read-only bitmaps when inactivated
    
    Signed-off-by: Peter Maydell <peter.maydell@xxxxxxxxxx>

 block/qcow2-bitmap.c       | 23 ++++++++++++++---
 tests/qemu-iotests/169     | 64 +++++++++++++++++++++++++++++++++++++++++++++-
 tests/qemu-iotests/169.out |  4 +--
 3 files changed, 84 insertions(+), 7 deletions(-)
--
generated by git-patchbot for /home/xen/git/qemu-xen.git#master