diff options
| -rw-r--r-- | mm/memory_hotplug.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index f6f23833de44..c8e450132813 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1016,6 +1016,10 @@ static pg_data_t __ref *hotadd_new_pgdat(int nid, u64 start) return NULL; arch_refresh_nodedata(nid, pgdat); + } else { + /* Reset the nr_zones and classzone_idx to 0 before reuse */ + pgdat->nr_zones = 0; + pgdat->classzone_idx = 0; } /* we can use NODE_DATA(nid) from here */ @@ -1863,15 +1867,6 @@ void try_offline_node(int nid) if (is_vmalloc_addr(zone->wait_table)) vfree(zone->wait_table); } - - /* - * Since there is no way to guarentee the address of pgdat/zone is not - * on stack of any kernel threads or used by other kernel objects - * without reference counting or other symchronizing method, do not - * reset node_data and free pgdat here. Just reset it to 0 and reuse - * the memory when the node is online again. - */ - memset(pgdat, 0, sizeof(*pgdat)); } EXPORT_SYMBOL(try_offline_node); |