| From | Matthew Wilcox <> | Subject | [PATCH v6 36/51] mm: Allow THPs to be removed from the page cache | Date | Wed, 10 Jun 2020 13:13:30 -0700 |
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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
page_cache_free_page() assumes THPs are PMD_SIZE; fix that assumption.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- mm/filemap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/filemap.c b/mm/filemap.c index ab9746aff766..78f888d028c5 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -248,7 +248,7 @@ static void page_cache_free_page(struct address_space *mapping, freepage(page); if (PageTransHuge(page) && !PageHuge(page)) { - page_ref_sub(page, HPAGE_PMD_NR); + page_ref_sub(page, thp_nr_pages(page)); VM_BUG_ON_PAGE(page_count(page) <= 0, page); } else { put_page(page); -- 2.26.2
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