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-rw-r--r--include/linux/mmzone.h3
-rw-r--r--init/main.c2
-rw-r--r--mm/memory_hotplug.c10
-rw-r--r--mm/page_alloc.c7
4 files changed, 12 insertions, 10 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index e3d7754f25f0..5c7645e156a5 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -756,7 +756,8 @@ static inline bool is_dev_zone(const struct zone *zone)
#include <linux/memory_hotplug.h>
extern struct mutex zonelists_mutex;
-void build_all_zonelists(pg_data_t *pgdat, struct zone *zone);
+void build_all_zonelists(pg_data_t *pgdat, struct zone *zone,
+ bool hotplug_context);
void wakeup_kswapd(struct zone *zone, int order, enum zone_type classzone_idx);
bool __zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark,
int classzone_idx, unsigned int alloc_flags,
diff --git a/init/main.c b/init/main.c
index d47860dbe896..7ad08957dd18 100644
--- a/init/main.c
+++ b/init/main.c
@@ -512,7 +512,7 @@ asmlinkage __visible void __init start_kernel(void)
smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
boot_cpu_hotplug_init();
- build_all_zonelists(NULL, NULL);
+ build_all_zonelists(NULL, NULL, false);
page_alloc_init();
pr_notice("Kernel command line: %s\n", boot_command_line);
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 449999657c0b..a4ffe5996317 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1125,7 +1125,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
mutex_lock(&zonelists_mutex);
if (!populated_zone(zone)) {
need_zonelists_rebuild = 1;
- build_all_zonelists(NULL, zone);
+ build_all_zonelists(NULL, zone, true);
}
ret = walk_system_ram_range(pfn, nr_pages, &onlined_pages,
@@ -1146,7 +1146,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
if (onlined_pages) {
node_states_set_node(nid, &arg);
if (need_zonelists_rebuild)
- build_all_zonelists(NULL, NULL);
+ build_all_zonelists(NULL, NULL, true);
else
zone_pcp_update(zone);
}
@@ -1220,7 +1220,7 @@ static pg_data_t __ref *hotadd_new_pgdat(int nid, u64 start)
* to access not-initialized zonelist, build here.
*/
mutex_lock(&zonelists_mutex);
- build_all_zonelists(pgdat, NULL);
+ build_all_zonelists(pgdat, NULL, true);
mutex_unlock(&zonelists_mutex);
/*
@@ -1276,7 +1276,7 @@ int try_online_node(int nid)
if (pgdat->node_zonelists->_zonerefs->zone == NULL) {
mutex_lock(&zonelists_mutex);
- build_all_zonelists(NULL, NULL);
+ build_all_zonelists(NULL, NULL, true);
mutex_unlock(&zonelists_mutex);
}
@@ -2016,7 +2016,7 @@ repeat:
if (!populated_zone(zone)) {
zone_pcp_reset(zone);
mutex_lock(&zonelists_mutex);
- build_all_zonelists(NULL, NULL);
+ build_all_zonelists(NULL, NULL, true);
mutex_unlock(&zonelists_mutex);
} else
zone_pcp_update(zone);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index de00e0fec484..f394dd87fa03 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4608,7 +4608,7 @@ int numa_zonelist_order_handler(struct ctl_table *table, int write,
user_zonelist_order = oldval;
} else if (oldval != user_zonelist_order) {
mutex_lock(&zonelists_mutex);
- build_all_zonelists(NULL, NULL);
+ build_all_zonelists(NULL, NULL, false);
mutex_unlock(&zonelists_mutex);
}
}
@@ -4988,11 +4988,12 @@ build_all_zonelists_init(void)
* (2) call of __init annotated helper build_all_zonelists_init
* [protected by SYSTEM_BOOTING].
*/
-void __ref build_all_zonelists(pg_data_t *pgdat, struct zone *zone)
+void __ref build_all_zonelists(pg_data_t *pgdat, struct zone *zone,
+ bool hotplug_context)
{
set_zonelist_order();
- if (system_state == SYSTEM_BOOTING) {
+ if (system_state == SYSTEM_BOOTING && !hotplug_context) {
build_all_zonelists_init();
} else {
#ifdef CONFIG_MEMORY_HOTPLUG