Messages in this thread Patch in this message | | | From | Luis Chamberlain <> | Subject | [RFC v2 1/8] page_flags: add is_folio_hwpoison() | Date | Fri, 26 May 2023 00:55:45 -0700 |
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Provide a helper similar to is_page_hwpoison() for folios which tests the first head and if the folio is large any page in the folio is tested for the poison flag.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> --- include/linux/page-flags.h | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 1c68d67b832f..4d5f395edf03 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -883,6 +883,13 @@ static inline bool is_page_hwpoison(struct page *page) return PageHuge(page) && PageHWPoison(compound_head(page)); } +static inline bool is_folio_hwpoison(struct folio *folio) +{ + if (folio_test_hwpoison(folio)) + return true; + return folio_test_large(folio) && folio_test_has_hwpoisoned(folio); +} + /* * For pages that are never mapped to userspace (and aren't PageSlab), * page_type may be used. Because it is initialised to -1, we invert the -- 2.39.2
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