Messages in this thread | | | From | Muchun Song <> | Date | Fri, 18 Mar 2022 16:24:48 +0800 | Subject | Re: [PATCH v2 09/11] mm/migration: fix potential page refcounts leak in migrate_pages |
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On Thu, Mar 17, 2022 at 10:41 PM Miaohe Lin <linmiaohe@huawei.com> wrote: > > In -ENOMEM case, there might be some subpages of fail-to-migrate THPs > left in thp_split_pages list. We should move them back to migration > list so that they could be put back to the right list by the caller > otherwise the page refcnt will be leaked here. Also adjust nr_failed > and nr_thp_failed accordingly to make vm events account more accurate. > > Fixes: b5bade978e9b ("mm: migrate: fix the return value of migrate_pages()") > Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> > Reviewed-by: Zi Yan <ziy@nvidia.com> > Reviewed-by: "Huang, Ying" <ying.huang@intel.com> > Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
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