diff options
| author | Jinjiang Tu <tujinjiang@huawei.com> | 2025-03-18 16:39:38 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-20 10:18:18 +0200 |
| commit | e8defb8b2082cc031342e2a4217d7aa1a36a1fe8 (patch) | |
| tree | c3a6791d56459d799149d7e39ce3c62a36bb0153 /include | |
| parent | bbaec591f62cfc9ebae0ee9e234f52242e535271 (diff) | |
mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper
commit 5f5ee52d4f58605330b09851273d6e56aaadd29e upstream.
Patch series "mm/vmscan: don't try to reclaim hwpoison folio".
Fix a bug during memory reclaim if folio is hwpoisoned.
This patch (of 2):
Introduce helper folio_contain_hwpoisoned_page() to check if the entire
folio is hwpoisoned or it contains hwpoisoned pages.
Link: https://lkml.kernel.org/r/20250318083939.987651-1-tujinjiang@huawei.com
Link: https://lkml.kernel.org/r/20250318083939.987651-2-tujinjiang@huawei.com
Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/page-flags.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 691506bdf2c5..27f38932c1c4 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -1113,6 +1113,12 @@ static inline bool is_page_hwpoison(const struct page *page) return folio_test_hugetlb(folio) && PageHWPoison(&folio->page); } +static inline bool folio_contain_hwpoisoned_page(struct folio *folio) +{ + return folio_test_hwpoison(folio) || + (folio_test_large(folio) && folio_test_has_hwpoisoned(folio)); +} + bool is_free_buddy_page(const struct page *page); PAGEFLAG(Isolated, isolated, PF_ANY); |