Function open_raw

block/src/factory.rs:142–169

(
    file: fs::File,
    options: &DiskOpenOptions<'_>,
)

}

fn open_raw(
    file: fs::File,
    options: &DiskOpenOptions<'_>,
) -> BlockResult<Box<dyn AsyncFullDiskFile>> {
    if !options.readonly && !options.sparse {
        preallocate_disk(&file, options.path);
    }

    #[cfg(feature = "io_uring")]
    if !options.disable_io_uring {
        if io_uring_supported() {
            info!("Opening RAW disk file with io_uring backend");
            return Ok(Box::new(RawDisk::new(file, RawBackend::IoUring)));
        }
        info!("io_uring runtime probe failed for RAW, trying next backend");
    }

    if !options.disable_aio {
        if aio_supported() {
            info!("Opening RAW disk file with AIO backend");
            return Ok(Box::new(RawDisk::new(file, RawBackend::Aio)));
        }
        info!("AIO runtime probe failed for RAW, using synchronous backend");
    }

    info!("Opening RAW disk file with synchronous backend");
    Ok(Box::new(RawDisk::new(file, RawBackend::Sync)))
}

fn open_qcow2(
    file: fs::File,