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-rw-r--r--mm/page-writeback.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index a7ba5cee950b..a146e3389e78 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -171,6 +171,11 @@ static struct dirty_throttle_control *mdtc_gdtc(struct dirty_throttle_control *m
return mdtc->gdtc;
}
+static struct fprop_local_percpu *wb_memcg_completions(struct bdi_writeback *wb)
+{
+ return &wb->memcg_completions;
+}
+
static void wb_min_max_ratio(struct bdi_writeback *wb,
unsigned long *minp, unsigned long *maxp)
{
@@ -213,6 +218,11 @@ static struct dirty_throttle_control *mdtc_gdtc(struct dirty_throttle_control *m
return NULL;
}
+static struct fprop_local_percpu *wb_memcg_completions(struct bdi_writeback *wb)
+{
+ return NULL;
+}
+
static void wb_min_max_ratio(struct bdi_writeback *wb,
unsigned long *minp, unsigned long *maxp)
{
@@ -530,9 +540,16 @@ static void wb_domain_writeout_inc(struct wb_domain *dom,
*/
static inline void __wb_writeout_inc(struct bdi_writeback *wb)
{
+ struct wb_domain *cgdom;
+
__inc_wb_stat(wb, WB_WRITTEN);
wb_domain_writeout_inc(&global_wb_domain, &wb->completions,
wb->bdi->max_prop_frac);
+
+ cgdom = mem_cgroup_wb_domain(wb);
+ if (cgdom)
+ wb_domain_writeout_inc(cgdom, wb_memcg_completions(wb),
+ wb->bdi->max_prop_frac);
}
void wb_writeout_inc(struct bdi_writeback *wb)
@@ -583,6 +600,14 @@ int wb_domain_init(struct wb_domain *dom, gfp_t gfp)
return fprop_global_init(&dom->completions, gfp);
}
+#ifdef CONFIG_CGROUP_WRITEBACK
+void wb_domain_exit(struct wb_domain *dom)
+{
+ del_timer_sync(&dom->period_timer);
+ fprop_global_destroy(&dom->completions);
+}
+#endif
+
/*
* bdi_min_ratio keeps the sum of the minimum dirty shares of all
* registered backing devices, which, for obvious reasons, can not