Hi Andrew, After merging the akpm-current tree, today's linux-next build (x86_64 allmodconfig) failed like this: mm/memcontrol.c: In function '__mem_cgroup_iter_next': mm/memcontrol.c:982:4: error: 'prev_cgroup' undeclared (first use in this function) prev_cgroup = next_cgroup; ^ mm/memcontrol.c:982:18: error: 'next_cgroup' undeclared (first use in this function) prev_cgroup = next_cgroup; ^ I applied this patch: From: Stephen Rothwell Date: Mon, 12 Aug 2013 16:04:36 +1000 Subject: [PATCH] memcontrol: further merge fix patch Signed-off-by: Stephen Rothwell --- mm/memcontrol.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 624d69e..a367145 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -979,7 +979,7 @@ skip_node: switch (mem_cgroup_filter(mem, root, cond)) { case SKIP: - prev_cgroup = next_cgroup; + prev_css = next_css; goto skip_node; case SKIP_TREE: if (mem == root) @@ -998,7 +998,7 @@ skip_node: if (css_tryget(&mem->css)) return mem; else { - prev_cgroup = next_cgroup; + prev_css = next_css; goto skip_node; } break; -- 1.8.4.rc0 -- Cheers, Stephen Rothwell sfr@canb.auug.org.au