Commit ca4b3f30 authored by Jianguo Wu's avatar Jianguo Wu Committed by Linus Torvalds

mm/hotplug: only free wait_table if it's allocated by vmalloc

zone->wait_table may be allocated from bootmem, it can not be freed.
Signed-off-by: default avatarJianguo Wu <wujianguo@huawei.com>
Reviewed-by: default avatarTang Chen <tangchen@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 96e7d7a1
...@@ -1779,7 +1779,11 @@ void try_offline_node(int nid) ...@@ -1779,7 +1779,11 @@ void try_offline_node(int nid)
for (i = 0; i < MAX_NR_ZONES; i++) { for (i = 0; i < MAX_NR_ZONES; i++) {
struct zone *zone = pgdat->node_zones + i; struct zone *zone = pgdat->node_zones + i;
if (zone->wait_table) /*
* wait_table may be allocated from boot memory,
* here only free if it's allocated by vmalloc.
*/
if (is_vmalloc_addr(zone->wait_table))
vfree(zone->wait_table); vfree(zone->wait_table);
} }
......
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