| Message ID | 20230328061638.203420-3-yosryahmed@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | memcg: make rstat flushing irq and sleep friendly | expand |
On Mon, Mar 27, 2023 at 11:16 PM Yosry Ahmed <yosryahmed@google.com> wrote: > > mem_cgroup_flush_stats_delayed() suggests his is using a delayed_work, > but this is actually sometimes flushing directly from the callsite. > > What it's doing is ratelimited calls. A better name would be > mem_cgroup_flush_stats_ratelimited(). > > Suggested-by: Johannes Weiner <hannes@cmpxchg.org> > Signed-off-by: Yosry Ahmed <yosryahmed@google.com> Acked-by: Shakeel Butt <shakeelb@google.com>
On Tue, Mar 28, 2023 at 06:16:31AM +0000, Yosry Ahmed wrote: > mem_cgroup_flush_stats_delayed() suggests his is using a delayed_work, > but this is actually sometimes flushing directly from the callsite. > > What it's doing is ratelimited calls. A better name would be > mem_cgroup_flush_stats_ratelimited(). > > Suggested-by: Johannes Weiner <hannes@cmpxchg.org> > Signed-off-by: Yosry Ahmed <yosryahmed@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org>
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index b6eda2ab205d..ac3f3b3a45e2 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -1037,7 +1037,7 @@ static inline unsigned long lruvec_page_state_local(struct lruvec *lruvec, } void mem_cgroup_flush_stats(void); -void mem_cgroup_flush_stats_delayed(void); +void mem_cgroup_flush_stats_ratelimited(void); void __mod_memcg_lruvec_state(struct lruvec *lruvec, enum node_stat_item idx, int val); @@ -1535,7 +1535,7 @@ static inline void mem_cgroup_flush_stats(void) { } -static inline void mem_cgroup_flush_stats_delayed(void) +static inline void mem_cgroup_flush_stats_ratelimited(void) { } diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 0205e58ea430..c3b6aae78901 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -653,7 +653,7 @@ void mem_cgroup_flush_stats(void) __mem_cgroup_flush_stats(); } -void mem_cgroup_flush_stats_delayed(void) +void mem_cgroup_flush_stats_ratelimited(void) { if (time_after64(jiffies_64, flush_next_time)) mem_cgroup_flush_stats(); diff --git a/mm/workingset.c b/mm/workingset.c index 00c6f4d9d9be..af862c6738c3 100644 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -462,7 +462,7 @@ void workingset_refault(struct folio *folio, void *shadow) mod_lruvec_state(lruvec, WORKINGSET_REFAULT_BASE + file, nr); - mem_cgroup_flush_stats_delayed(); + mem_cgroup_flush_stats_ratelimited(); /* * Compare the distance to the existing workingset size. We * don't activate pages that couldn't stay resident even if
mem_cgroup_flush_stats_delayed() suggests his is using a delayed_work, but this is actually sometimes flushing directly from the callsite. What it's doing is ratelimited calls. A better name would be mem_cgroup_flush_stats_ratelimited(). Suggested-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Yosry Ahmed <yosryahmed@google.com> --- include/linux/memcontrol.h | 4 ++-- mm/memcontrol.c | 2 +- mm/workingset.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-)