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[Qemu-devel] [PATCH v2 00/10] Misc reopen-related patches


From: Alberto Garcia
Subject: [Qemu-devel] [PATCH v2 00/10] Misc reopen-related patches
Date: Mon, 3 Sep 2018 17:33:58 +0300

Hi,

as part of my blockdev-reopen work here's a new set of patches. This
doesn't implement yet the core functionality of the new reopen
command, but it does fix a few things that help us pave the way.
I believe that the next series after this one will be the last.

The main change is the removal of child references from the options
and explicit_options QDicts. This was already discussed in the
previous series[1], and here's the implementation.

Regards,

Berto

[1] https://lists.gnu.org/archive/html/qemu-block/2018-08/msg00474.html

v2:
- Patches 3 and 5: Make comments more explicit. [Max]
- Patch 6: Use qemu_opts_to_qdict() in bdrv_reopen_prepare() to put
  all unprocessed options back into the QDict. [Max]
- Patches 8-10: Use qemu_opt_get_del() and update commit messages to
  reflect the changes in patch 6. [Max]

v1: https://lists.gnu.org/archive/html/qemu-block/2018-08/msg00846.html
- Initial version

Output of backport-diff against v1:

Key:
[----] : patches are identical
[####] : number of functional differences between upstream/downstream patch
[down] : patch is downstream-only
The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively

001/10:[----] [--] 'qemu-io: Fix writethrough check in reopen'
002/10:[----] [--] 'file-posix: x-check-cache-dropped should default to false 
on reopen'
003/10:[0003] [FC] 'block: Remove child references from 
bs->{options,explicit_options}'
004/10:[----] [--] 'block: Don't look for child references in 
append_open_options()'
005/10:[0005] [FC] 'block: Allow child references on reopen'
006/10:[down] 'block: Forbid trying to change unsupported options during reopen'
007/10:[----] [--] 'file-posix: Forbid trying to change unsupported options 
during reopen'
008/10:[0003] [FC] 'block: Allow changing 'discard' on reopen'
009/10:[0002] [FC] 'block: Allow changing 'detect-zeroes' on reopen'
010/10:[0002] [FC] 'block: Allow changing 'force-share' on reopen'

Alberto Garcia (10):
  qemu-io: Fix writethrough check in reopen
  file-posix: x-check-cache-dropped should default to false on reopen
  block: Remove child references from bs->{options,explicit_options}
  block: Don't look for child references in append_open_options()
  block: Allow child references on reopen
  block: Forbid trying to change unsupported options during reopen
  file-posix: Forbid trying to change unsupported options during reopen
  block: Allow changing 'discard' on reopen
  block: Allow changing 'detect-zeroes' on reopen
  block: Allow changing 'force-share' on reopen

 block.c               | 161 +++++++++++++++++++++++++++++++++-----------------
 block/file-posix.c    |   9 ++-
 include/block/block.h |   2 +
 qemu-io-cmds.c        |   2 +-
 4 files changed, 117 insertions(+), 57 deletions(-)

-- 
2.11.0




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