From: Chen Wandun chenwandun@huawei.com

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4SK3S CVE: NA

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Low-reliable memory is located in ZONE_MOVABLE, so gfp should contain GFP_HIGHMEM and GFP_MOVABLE when reclaim memory.

Signed-off-by: Chen Wandun chenwandun@huawei.com Reviewed-by: Kefeng Wang wangkefeng.wang@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c index 994c116306aa2..b6afafdef5075 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -4042,8 +4042,8 @@ unsigned long shrink_page_cache(gfp_t mask) { unsigned long nr_pages;

- /* We reclaim the highmem zone too, it is useful for 32bit arch */ - nr_pages = __shrink_page_cache(mask | __GFP_HIGHMEM); + /* reclaim from movable zone */ + nr_pages = __shrink_page_cache(mask | __GFP_HIGHMEM | __GFP_MOVABLE);

return nr_pages; }