Anatol Belski 94368c622e block: Add BackingFilesDisabled error for actionable user guidance ... When a QCOW2 image has a backing file but backing_files=on is not set, the error was MaxNestingDepthExceeded which gives no indication that this is a policy decision or how to resolve it. Add a BackingFilesDisabled error variant whose message indicates that backing file support is disabled and references the backing_files option. The translation from MaxNestingDepthExceeded to BackingFilesDisabled happens at the QcowDiskSync boundary where the policy decision is made, preserving the original error for genuine recursive depth exhaustion. Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>		2026-02-19 13:48:40 +00:00
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src	block: Add BackingFilesDisabled error for actionable user guidance	2026-02-19 13:48:40 +00:00
Cargo.toml	block: qcow: Validate incompatible feature bits	2026-01-23 18:58:56 +00:00