if requested. LKMs which need it should use: SRCS+= vnode_if.h CLEANFILES+= vnode_if.h vnode_if.c These rules were already present for VFS LKMs; now they are enabled all the time. (VFS LKMs do not need the fragment above; it is still done for them.)
work in the Makefile. Just define VFS_LKM and you're off!