On Mon, Nov 18, 2019 at 11:26 PM Jens Axboe <axboe@xxxxxxxxx> wrote: > > On 11/17/19 9:52 PM, Masahiro Yamada wrote: > > Commit 2dffd23f81a3 ("kbuild: make single target builds much faster") > > made the situation much better. > > > > To improve it even more, apply the similar idea to the top Makefile. > > Trim unrelated directories from build-dirs. > > > > The single build code must be moved above the 'descend' target. > > I tested linux-next, which does improve things a bit, and this one on > top further improves it. We're now not THAT far off the situation > before these changes, that's a huge win. Thanks for working on this! > > You can add: > > Tested-by: Jens Axboe <axboe@xxxxxxxxx> > > to the commit, if you wish. > Applied to linux-kbuild with Jens' Tested-by. -- Best Regards Masahiro Yamada