Hi Tejun, After merging the cgroup tree, today's linux-next build (x86_64 allmodconfig) failed like this:
mm/vmscan.c: In function 'sane_reclaim': mm/vmscan.c:178:2: error: implicit declaration of function 'cgroup_on_dfl' [-Werror=implicit-function-declaration] if (cgroup_on_dfl(memcg->css.cgroup)) ^ Caused by commit d5028f9f7d8d ("vmscan: fix sane_reclaim helper for legacy memcg") from Linus' tree interacting with commit 9e10a130d9b6 ("cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl()") from the cgroup tree. We new this was coming, so I have applied the following merge fix patch from Andrew's tree and can carry it as necessary: From: Michal Hocko <mho...@kernel.org> Subject: vmscan build fix Signed-off-by: Andrew Morton <a...@linux-foundation.org> --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN mm/vmscan.c~vmscan-build-fix mm/vmscan.c --- a/mm/vmscan.c~vmscan-build-fix +++ a/mm/vmscan.c @@ -175,7 +175,7 @@ static bool sane_reclaim(struct scan_con if (!memcg) return true; #ifdef CONFIG_CGROUP_WRITEBACK - if (cgroup_on_dfl(memcg->css.cgroup)) + if (cgroup_subsys_on_dfl(memory_cgrp_subsys)) return true; #endif return false; _ -- Cheers, Stephen Rothwell s...@canb.auug.org.au -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/