Anatol Belski f8008191d2 block: qcow: Add support variable refcount widths ...

QCOW2 v3 specifies refcount_order 0-6 with
refcount_bits = 1 << refcount_order. Previously only 16-bit (order 4)
was supported.

Changes:
- RefcountBytes trait handles byte-aligned types (8/16/32/64-bit)
- Generic pack/unpack for sub-byte widths (1/2/4-bit)
- Function pointers for read/write selected at open time
- Internal refcount type widened from u16 to u64

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>

2026-01-25 09:36:42 +00:00

..

src

block: qcow: Add support variable refcount widths

2026-01-25 09:36:42 +00:00

Cargo.toml

block: qcow: Validate incompatible feature bits

2026-01-23 18:58:56 +00:00