Date: Tue, 7 Jun 2016 18:28:11 +0800 (PHT) From: Paul Goyette <[email protected]>
Can anyone suggest a reliable way to ensure that a device-driver module can be _really_ safely detached? General approach: 1. Prevent new references (e.g., devsw_detach). 2. Wait for existing references to drain (or roll back with devsw_attach if you don't want to wait, and fail with EBUSY). 3. Unload.
