Verify that physical size of a sparse file is less than
logical size.
Assisted-by: Claude:Opus-4.6
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
Verify that try_clone preserves the backend variant for
each RawBackend: sync, AIO and io_uring.
Assisted-by: Claude:Opus-4.6
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
Verify each RawBackend variant stores correctly and
create_async_io dispatches to the matching constructor.
Assisted-by: Claude:Opus-4.6
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
Verify that RawDisk with the sync backend reports the correct
logical size for a temporary file. Introduce make_raw_file helper
and TEST_SIZE constant for reuse in subsequent tests.
Assisted-by: Claude:Opus-4.6
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
Add the DiskFile marker and AsyncDiskFile with try_clone and
create_async_io. The dispatch creates RawFileSync, RawFileAsync,
or RawFileAsyncAio depending on the backend selected at
construction. Alignment handling is left to the workers as is,
to be centralized separately per #8050.
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
Use the block device aware resize from RawFileDisk. For block
devices, verify the externally set size matches instead of
calling ftruncate. For regular files, truncate as usual.
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
Introduce the unified DiskFile wrapper for raw disk images. The
RawBackend enum selects between sync, io_uring, and AIO backends
at construction time.
Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
