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qcow2: Explicit mention of padding bytes

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Although we already covered the need for padding bytes with our
changes in commit 3ae3fcfa, commit 66fcbca5 (both v5.0.0) added one
byte and relied on the rest of the text for implicitly covering 7
padding bytes.  For consistency with other parts of the header (such
as the header extension format listing padding from n - m, or the
snapshot table entry listing variable padding), we might as well call
out the remaining 7 bytes as padding until such time (as any) as they
gain another meaning.

Signed-off-by: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Message-Id: <20230522184631.47211-1-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
This commit is contained in:
Eric Blake
2023-05-22 13:46:31 -05:00
parent 430746359f
commit 5cf899e215
1 changed files with 1 additions and 0 deletions
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docs/interop/qcow2.txt
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@ -226,6 +226,7 @@ version 2.
<https://www.zlib.net/> in QEMU. However, clusters with the
deflate compression type do not have zlib headers.
105 - 111: Padding, contents defined below.
=== Header padding ===