diff options
| -rw-r--r-- | mm/percpu-km.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/percpu-km.c b/mm/percpu-km.c index dc096b5a6ce4..65fd5580e447 100644 --- a/mm/percpu-km.c +++ b/mm/percpu-km.c @@ -94,8 +94,15 @@ static void pcpu_destroy_chunk(struct pcpu_chunk *chunk) pcpu_stats_chunk_dealloc(); trace_percpu_destroy_chunk(chunk->base_addr); - if (chunk->data) + if (chunk->data) { + struct page *pages = (struct page *)chunk->data; + int i; + + /* clear chunk info from each page before free them */ + for (i = 0; i < nr_pages; i++) + pcpu_set_page_chunk(pages + i, NULL); __free_pages(chunk->data, order_base_2(nr_pages)); + } pcpu_free_chunk(chunk); } |