From: Xishi Qiu <qiuxishi@xxxxxxxxxx>
online_pages() does build_all_zonelists() and zone_pcp_update(),
I think offline_pages() should do it too.
When the zone has no memory to allocate, remove it form other
nodes' zonelists. zone_batchsize() depends on zone's present pages,
if zone's present pages are changed, zone's pcp should be updated.
Signed-off-by: Xishi Qiu <qiuxishi@xxxxxxxxxx>
---
mm/memory_hotplug.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index bc7e7a2..5f6997f 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -973,8 +973,13 @@ repeat:
init_per_zone_wmark_min();
- if (!populated_zone(zone))
+ if (!populated_zone(zone)) {
zone_pcp_reset(zone);
+ mutex_lock(&zonelists_mutex);
+ build_all_zonelists(NULL, NULL);
+ mutex_unlock(&zonelists_mutex);
+ } else
+ zone_pcp_update(zone);
if (!node_present_pages(node)) {
node_clear_state(node, N_HIGH_MEMORY);
--
1.7.6.1
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