diff options
| -rw-r--r-- | mm/vmscan.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 412d787..3b58602 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -732,7 +732,14 @@ static unsigned long shrink_page_list(struct list_head *page_list, if (!mapping || !__remove_mapping(mapping, page)) goto keep_locked; - unlock_page(page); + /* + * At this point, we have no other references and there is + * no way to pick any more up (removed from LRU, removed + * from pagecache). Can use non-atomic bitops now (and + * we obviously don't have to worry about waking up a process + * waiting on the page lock, because there are no references. + */ + __clear_page_locked(page); free_it: nr_reclaimed++; if (!pagevec_add(&freed_pvec, page)) { |
