From 3c7d14b201ee4eeec2ca259b5a071a4599aa8847 Mon Sep 17 00:00:00 2001 From: Alberto Garcia Date: Tue, 10 Apr 2018 18:05:04 +0200 Subject: [PATCH] specs/qcow2: Clarify that compressed clusters have the COPIED bit reset Compressed clusters are not supposed to have the COPIED bit set, but this is not made explicit in the specs, so let's document it. Signed-off-by: Alberto Garcia Message-id: 74552e1d6e858d3159cb0c0e188e80bc9248e337.1523376013.git.berto@igalia.com Reviewed-by: Eric Blake Signed-off-by: Max Reitz --- docs/interop/qcow2.txt | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/docs/interop/qcow2.txt b/docs/interop/qcow2.txt index feb711fb6a..8e1547ded2 100644 --- a/docs/interop/qcow2.txt +++ b/docs/interop/qcow2.txt @@ -400,10 +400,10 @@ L2 table entry: 62: 0 for standard clusters 1 for compressed clusters - 63: 0 for a cluster that is unused or requires COW, 1 if its - refcount is exactly one. This information is only accurate - in L2 tables that are reachable from the active L1 - table. + 63: 0 for clusters that are unused, compressed or require COW. + 1 for standard clusters whose refcount is exactly one. + This information is only accurate in L2 tables + that are reachable from the active L1 table. Standard Cluster Descriptor: -- 2.49.0