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authorWen Congyang <wency@cn.fujitsu.com>2013-02-23 04:33:29 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-24 05:50:13 +0400
commit76bba1423f6313ccf7bd7cd400f1f2049bbc740a (patch)
tree957d8fd523cf0340e2a9c11ac21c4d3f86b7e3b1 /drivers/acpi
parent90b30cdc1d87450e2ae89c8f8a29102dc2c1992e (diff)
downloadlinux-76bba1423f6313ccf7bd7cd400f1f2049bbc740a.tar.xz
cpu-hotplug, memory-hotplug: try offlining the node when hotremoving a cpu
The node will be offlined when all memory/cpu on the node is hotremoved. So we should try offline the node when hotremoving a cpu on the node. Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Cc: David Rientjes <rientjes@google.com> Cc: Jiang Liu <liuj97@gmail.com> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/processor_driver.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index cbf1f122666b..df34bd04ae62 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -45,6 +45,7 @@
#include <linux/cpuidle.h>
#include <linux/slab.h>
#include <linux/acpi.h>
+#include <linux/memory_hotplug.h>
#include <asm/io.h>
#include <asm/cpu.h>
@@ -641,6 +642,7 @@ static int acpi_processor_remove(struct acpi_device *device)
per_cpu(processors, pr->id) = NULL;
per_cpu(processor_device_array, pr->id) = NULL;
+ try_offline_node(cpu_to_node(pr->id));
free:
free_cpumask_var(pr->throttling.shared_cpu_map);