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[Qemu-devel] [PATCH v2 0/3] qcow2: Drop REFCOUNT_SHIFT
From: |
Max Reitz |
Subject: |
[Qemu-devel] [PATCH v2 0/3] qcow2: Drop REFCOUNT_SHIFT |
Date: |
Wed, 3 Sep 2014 00:25:06 +0200 |
In preparation for qemu maybe actually supporting variable refcount
widths in the far future, drop the hardcoded REFCOUNT_SHIFT and instead
use the value as given by the image.
Also, the qcow2 documentation gave the width of a refcount block entry
as sizeof(uint16_t), which is wrong for any refcount order other than 4.
Fix that.
This is a follow-up to my "[PATCH v5 00/11] qcow2: Fix image repairing"
series and therefore depends on it.
v2:
- Patch 2: Fix wrongly fixed calculation [BenoƮt, Eric]
- Patch 3: Added [Eric]
git-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
001/3:[----] [--] 'qcow2: Drop REFCOUNT_SHIFT'
002/3:[0002] [FC] 'docs/qcow2: Correct refcount_block_entries'
003/3:[down] 'docs/qcow2: Limit refcount_order to [0, 6]'
Max Reitz (3):
qcow2: Drop REFCOUNT_SHIFT
docs/qcow2: Correct refcount_block_entries
docs/qcow2: Limit refcount_order to [0, 6]
block/qcow2-refcount.c | 32 ++++++++++++++------------------
block/qcow2.c | 2 +-
block/qcow2.h | 2 --
docs/specs/qcow2.txt | 3 ++-
4 files changed, 17 insertions(+), 22 deletions(-)
--
2.1.0
- [Qemu-devel] [PATCH v2 0/3] qcow2: Drop REFCOUNT_SHIFT,
Max Reitz <=