Function aio_supported

block/src/factory.rs:69–72

Returns true when Linux AIO is supported on the running kernel. The result is cached so the probe runs at most once per process.

()

///
/// The result is cached so the probe runs at most once per process.
fn aio_supported() -> bool {
    static SUPPORTED: OnceLock<bool> = OnceLock::new();
    *SUPPORTED.get_or_init(block_aio_is_supported)
}

/// Open a disk image and construct the appropriate async backend.
///