nilfs2: replace WARNONs by nilfserror for checkpoint acquisition failure
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.331 by commit b63026b5e13040cd5afa11769dd0d9e1504b031a. For more details please see the references link.