diff options
| -rw-r--r-- | include/linux/mmzone.h | 2 | ||||
| -rw-r--r-- | mm/vmscan.c | 7 |
2 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 9f7c3ebcbbad..aa2d80b61d47 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -633,7 +633,7 @@ typedef struct pglist_data { range, including holes */ int node_id; wait_queue_head_t kswapd_wait; - struct task_struct *kswapd; + struct task_struct *kswapd; /* Protected by lock_memory_hotplug() */ int kswapd_max_order; enum zone_type classzone_idx; } pg_data_t; diff --git a/mm/vmscan.c b/mm/vmscan.c index 769935d17c01..1b0ed361e5bf 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2952,14 +2952,17 @@ int kswapd_run(int nid) } /* - * Called by memory hotplug when all memory in a node is offlined. + * Called by memory hotplug when all memory in a node is offlined. Caller must + * hold lock_memory_hotplug(). */ void kswapd_stop(int nid) { struct task_struct *kswapd = NODE_DATA(nid)->kswapd; - if (kswapd) + if (kswapd) { kthread_stop(kswapd); + NODE_DATA(nid)->kswapd = NULL; + } } static int __init kswapd_init(void) |