diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memcontrol.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 128f45c16fa..e8493fb2d69 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -250,7 +250,7 @@ unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, unsigned long scan; LIST_HEAD(pc_list); struct list_head *src; - struct page_cgroup *pc; + struct page_cgroup *pc, *tmp; if (active) src = &mem_cont->active_list; @@ -258,11 +258,18 @@ unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, src = &mem_cont->inactive_list; spin_lock(&mem_cont->lru_lock); - for (scan = 0; scan < nr_to_scan && !list_empty(src); scan++) { - pc = list_entry(src->prev, struct page_cgroup, lru); + scan = 0; + list_for_each_entry_safe_reverse(pc, tmp, src, lru) { + if (scan++ > nr_to_scan) + break; page = pc->page; VM_BUG_ON(!pc); + if (unlikely(!PageLRU(page))) { + scan--; + continue; + } + if (PageActive(page) && !active) { __mem_cgroup_move_lists(pc, true); scan--; |