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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2024-03-21 14:24:44 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-04-25 20:56:00 -0700 |
| commit | 8682a7be36d8c6ebd484753034a716a13f8a1f54 (patch) | |
| tree | b8f8ac218f0dd1430c14cb56c619f27b8b726914 /include | |
| parent | 85edc15a4c606094a14c36ebf5bceea7f9a3e395 (diff) | |
| download | lwn-8682a7be36d8c6ebd484753034a716a13f8a1f54.tar.gz lwn-8682a7be36d8c6ebd484753034a716a13f8a1f54.zip | |
mm: remove a call to compound_head() from is_page_hwpoison()
We can call it only once instead of twice.
Link: https://lkml.kernel.org/r/20240321142448.1645400-7-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/page-flags.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 6fb3cd42ee59..94eb8a11a321 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -1065,11 +1065,14 @@ static inline bool PageHuge(const struct page *page) * best effort only and inherently racy: there is no way to synchronize with * failing hardware. */ -static inline bool is_page_hwpoison(struct page *page) +static inline bool is_page_hwpoison(const struct page *page) { + const struct folio *folio; + if (PageHWPoison(page)) return true; - return PageHuge(page) && PageHWPoison(compound_head(page)); + folio = page_folio(page); + return folio_test_hugetlb(folio) && PageHWPoison(&folio->page); } extern bool is_free_buddy_page(struct page *page); |