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[Qemu-devel] [PATCH 0/2] qcow2: Drop REFCOUNT_SHIFT


From: Max Reitz
Subject: [Qemu-devel] [PATCH 0/2] qcow2: Drop REFCOUNT_SHIFT
Date: Fri, 29 Aug 2014 23:45:25 +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.


Max Reitz (2):
  qcow2: Drop REFCOUNT_SHIFT
  docs/qcow2: Correct refcount_block_entries

 block/qcow2-refcount.c | 32 ++++++++++++++------------------
 block/qcow2.c          |  2 +-
 block/qcow2.h          |  2 --
 docs/specs/qcow2.txt   |  2 +-
 4 files changed, 16 insertions(+), 22 deletions(-)

-- 
2.1.0




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