diff options
| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-07-04 21:21:56 +0800 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-07-17 17:14:46 -0700 |
| commit | 0b175468a02d9ae8b97919b4de62ab4da578b520 (patch) | |
| tree | 19b25baa77e252518a30694d0fcef12a7d439c0b /mm/huge_memory.c | |
| parent | 3ce4fee4401206cf5a2c476ec0ee6c90191dfade (diff) | |
mm/huge_memory: try to free subpage in swapcache when possible
Subpages in swapcache won't be freed even if it is the last user of the
page until next time reclaim. It shouldn't hurt indeed, but we could try
to free these pages to save more memory for system.
Link: https://lkml.kernel.org/r/20220704132201.14611-12-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Zach O'Keefe <zokeefe@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 266afca39058..de3feb97f0e9 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2538,7 +2538,7 @@ static void __split_huge_page(struct page *page, struct list_head *list, * requires taking the lru_lock so we do the put_page * of the tail pages after the split is complete. */ - put_page(subpage); + free_page_and_swap_cache(subpage); } } |