From: Marcelo Tosatti <mtosatti@redhat.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Cc: Luiz Capitulino <lcapitulino@redhat.com>,
Rik van Riel <riel@redhat.com>,
Linux RT Users <linux-rt-users@vger.kernel.org>,
Marcelo Tosatti <mtosatti@redhat.com>
Subject: [patch 1/2] MM: remove unused quiet_vmstat function
Date: Tue, 25 Apr 2017 10:57:18 -0300 [thread overview]
Message-ID: <20170425135843.636700422@redhat.com> (raw)
In-Reply-To: 20170425135717.375295031@redhat.com
[-- Attachment #1: remove-vmstat-quiet --]
[-- Type: text/plain, Size: 2250 bytes --]
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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next prev parent reply other threads:[~2017-04-25 14:00 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-25 13:57 [patch 0/2] per-CPU vmstat thresholds and vmstat worker disablement Marcelo Tosatti
2017-04-25 13:57 ` Marcelo Tosatti [this message]
2017-04-25 13:57 ` [patch 2/2] MM: allow per-cpu vmstat_threshold and vmstat_worker configuration Marcelo Tosatti
2017-04-25 19:29 ` Rik van Riel
2017-04-25 19:36 ` Marcelo Tosatti
2017-05-02 14:28 ` Luiz Capitulino
2017-05-02 16:52 ` Marcelo Tosatti
2017-05-02 17:15 ` Luiz Capitulino
2017-05-02 17:21 ` Marcelo Tosatti
2017-05-11 15:37 ` Christoph Lameter
2017-05-12 12:27 ` Marcelo Tosatti
2017-05-12 15:11 ` Christoph Lameter
2017-05-12 15:40 ` Marcelo Tosatti
2017-05-12 16:03 ` Christoph Lameter
2017-05-12 16:07 ` Christoph Lameter
2017-05-12 16:19 ` Marcelo Tosatti
2017-05-12 16:57 ` Christoph Lameter
2017-05-15 19:15 ` Marcelo Tosatti
2017-05-16 13:37 ` Christoph Lameter
2017-05-19 14:34 ` Marcelo Tosatti
2017-05-19 17:13 ` Christoph Lameter
2017-05-19 17:49 ` Luiz Capitulino
2017-05-22 16:35 ` Christoph Lameter
2017-05-25 19:35 ` Marcelo Tosatti
2017-05-26 3:24 ` Christoph Lameter
2017-05-26 19:09 ` Marcelo Tosatti
2017-05-30 18:17 ` Christoph Lameter
2017-07-10 15:05 ` Marcelo Tosatti
2017-05-20 8:26 ` Marcelo Tosatti
2017-05-22 16:38 ` Christoph Lameter
2017-05-22 21:13 ` Marcelo Tosatti
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