diff options
| -rw-r--r-- | kernel/kthread.c | 2 | ||||
| -rw-r--r-- | mm/vmscan.c | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c index 6a5373868a9..c5f3c6613b6 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -115,7 +115,9 @@ static void keventd_create_kthread(void *_create) create->result = ERR_PTR(pid); } else { wait_for_completion(&create->started); + read_lock(&tasklist_lock); create->result = find_task_by_pid(pid); + read_unlock(&tasklist_lock); } complete(&create->done); } diff --git a/mm/vmscan.c b/mm/vmscan.c index fd572bbdc9f..78865c849f8 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1356,7 +1356,9 @@ static int __init kswapd_init(void) pid = kernel_thread(kswapd, pgdat, CLONE_KERNEL); BUG_ON(pid < 0); + read_lock(&tasklist_lock); pgdat->kswapd = find_task_by_pid(pid); + read_unlock(&tasklist_lock); } total_memory = nr_free_pagecache_pages(); hotcpu_notifier(cpu_callback, 0); |