On Mon, Jul 21, 2025 at 09:20:27AM +0800, Zizhi Wo wrote: > Sorry, disk_live() is only declared but not defined when CONFIG_BLOCK is > not set... You can just add a if (IS_ENABLED(CONFIG_BLOCK)) check around it. But the layering here feels wrong. sget_dev and it's helper operate purely on the dev_t. Anything actually dealing with a block device / gendisk should be in the helpers that otherwise use it.
