On 11.02.2020 14:46, Vasily Averin wrote: > On 2/11/20 2:38 PM, Kirill Tkhai wrote: >> Leaving mem_cgroup_iter() loop requires mem_cgroup_iter_break(). >> >> Fixes: bf8d5d52ffe8 "memcg: introduce memory.min" >> Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> >> --- >> mm/vmscan.c | 3 ++- >> 1 file changed, 2 insertions(+), 1 deletion(-) >> >> diff --git a/mm/vmscan.c b/mm/vmscan.c >> index b1863de475fb..f6efe2348ba3 100644 >> --- a/mm/vmscan.c >> +++ b/mm/vmscan.c >> @@ -2653,8 +2653,9 @@ static void shrink_node_memcgs(pg_data_t *pgdat, struct scan_control *sc) >> continue; >> } >> memcg_memory_event(memcg, MEMCG_LOW); >> - break; > > It is not cycle break, it is switch/case break. Oh, I missed this, thanks. >> + /* fallthrough */ >> case MEMCG_PROT_NONE: >> + mem_cgroup_iter_break(target_memcg, memcg); >> /* >> * All protection thresholds breached. We may >> * still choose to vary the scan pressure >> >>
