The patch titled
Subject: mm, vmstat: cancel pending work of the cpu_stat_off CPU
has been added to the -mm tree. Its filename is
mm-vmstat-make-quiet_vmstat-lighter-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-vmstat-make-quiet_vmstat-lighter-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-vmstat-make-quiet_vmstat-lighter-fix.patch
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------------------------------------------------------
From: Mike Galbraith <mgalbraith@xxxxxxx>
Subject: mm, vmstat: cancel pending work of the cpu_stat_off CPU
Cancel pending work of the cpu_stat_off CPU.
Signed-off-by: Mike Galbraith <mgalbraith@xxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmstat.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff -puN mm/vmstat.c~mm-vmstat-make-quiet_vmstat-lighter-fix mm/vmstat.c
--- a/mm/vmstat.c~mm-vmstat-make-quiet_vmstat-lighter-fix
+++ a/mm/vmstat.c
@@ -1486,25 +1486,25 @@ static void vmstat_shepherd(struct work_
get_online_cpus();
/* Check processors whose vmstat worker threads have been disabled */
- for_each_cpu(cpu, cpu_stat_off)
+ for_each_cpu(cpu, cpu_stat_off) {
+ struct delayed_work *dw = &per_cpu(vmstat_work, cpu);
+
if (need_update(cpu)) {
if (cpumask_test_and_clear_cpu(cpu, cpu_stat_off))
- queue_delayed_work_on(cpu, vmstat_wq,
- &per_cpu(vmstat_work, cpu), 0);
+ queue_delayed_work_on(cpu, vmstat_wq, dw, 0);
} else {
/*
* Cancel the work if quiet_vmstat has put this
* cpu on cpu_stat_off because the work item might
* be still scheduled
*/
- cancel_delayed_work(this_cpu_ptr(&vmstat_work));
+ cancel_delayed_work(dw);
}
-
+ }
put_online_cpus();
schedule_delayed_work(&shepherd,
round_jiffies_relative(sysctl_stat_interval));
-
}
static void __init start_shepherd_timer(void)
_
Patches currently in -mm which might be from mgalbraith@xxxxxxx are
mm-vmstat-make-quiet_vmstat-lighter-fix.patch
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