zfsonlinux/zfs — pull request #1762 by nedbass (2013-10-01 00:08:47+00:00)
Title: Export symbols dsl_pool_config_{enter,exit}

These are needed by consumers (i.e. Lustre) who wish to use the
dsl_prop_register() interface to register callbacks when pool
properties of interest change. This interface requires that the
DSL pool configuration lock is held when called.