[ Upstream commit e59fb6749ed833deee5b3cfd7e89925296d41f49 ] lockd needs to be able to hash filehandles for tracepoints. Move the nfs_fhandle_hash() helper to a common nfs include file. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Stable-dep-of: cd35b6cb4664 ("nfs: add missing selections of CONFIG_CRC32") Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Ulrich Hecht <uli@kernel.org>