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Subject[patch 1/3] MM: remove unused quiet_vmstat function
Remove unused quiet_vmstat function.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

---
include/linux/vmstat.h | 1 -
mm/vmstat.c | 25 -------------------------
2 files changed, 26 deletions(-)

Index: linux-2.6-git-disable-vmstat-worker/include/linux/vmstat.h
===================================================================
--- linux-2.6-git-disable-vmstat-worker.orig/include/linux/vmstat.h 2017-04-24 18:52:42.957724687 -0300
+++ linux-2.6-git-disable-vmstat-worker/include/linux/vmstat.h 2017-04-24 18:53:15.086793496 -0300
@@ -233,7 +233,6 @@
extern void __dec_zone_state(struct zone *, enum zone_stat_item);
extern void __dec_node_state(struct pglist_data *, enum node_stat_item);

-void quiet_vmstat(void);
void cpu_vm_stats_fold(int cpu);
void refresh_zone_stat_thresholds(void);

Index: linux-2.6-git-disable-vmstat-worker/mm/vmstat.c
===================================================================
--- linux-2.6-git-disable-vmstat-worker.orig/mm/vmstat.c 2017-04-24 18:52:42.957724687 -0300
+++ linux-2.6-git-disable-vmstat-worker/mm/vmstat.c 2017-04-24 18:53:53.075874785 -0300
@@ -1657,31 +1657,6 @@
}

/*
- * Switch off vmstat processing and then fold all the remaining differentials
- * until the diffs stay at zero. The function is used by NOHZ and can only be
- * invoked when tick processing is not active.
- */
-void quiet_vmstat(void)
-{
- if (system_state != SYSTEM_RUNNING)
- return;
-
- if (!delayed_work_pending(this_cpu_ptr(&vmstat_work)))
- return;
-
- if (!need_update(smp_processor_id()))
- return;
-
- /*
- * Just refresh counters and do not care about the pending delayed
- * vmstat_update. It doesn't fire that often to matter and canceling
- * it would be too expensive from this path.
- * vmstat_shepherd will take care about that for us.
- */
- refresh_cpu_vm_stats(false);
-}
-
-/*
* Shepherd worker thread that checks the
* differentials of processors that have their worker
* threads for vm statistics updates disabled because of

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