p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

mm/vmstat: Drop get_online_cpus() from init_cpu_node_state/vmstat_cpu_dead() 

Both functions are called with protection against cpu hotplug already so
*_online_cpus() could be dropped.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: linux-mm@kvack.org
Cc: rt@linutronix.de
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Vlastimil Babka <vbabka@suse.cz>
Link: http://lkml.kernel.org/r/20161126231350.10321-8-bigeasy@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Sebastian Andrzej Siewior 2016-11-27 00:13:35 +01:00 committed by Thomas Gleixner
parent b32614c034
commit 76f290935b
1 changed files with 1 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
mm/vmstat.c
View File

@ -1722,24 +1722,19 @@ static void __init init_cpu_node_state(void)
{ {
int cpu; int cpu;
get_online_cpus();
for_each_online_cpu(cpu) for_each_online_cpu(cpu)
node_set_state(cpu_to_node(cpu), N_CPU); node_set_state(cpu_to_node(cpu), N_CPU);
put_online_cpus();
} }
static void vmstat_cpu_dead(int node) static void vmstat_cpu_dead(int node)
{ {
int cpu; int cpu;
get_online_cpus();
for_each_online_cpu(cpu) for_each_online_cpu(cpu)
if (cpu_to_node(cpu) == node) if (cpu_to_node(cpu) == node)
goto end; return;
node_clear_state(node, N_CPU); node_clear_state(node, N_CPU);
end:
put_online_cpus();
} }
/* /*