Messages in this thread Patch in this message | | | From | yanfei.xu@windrive ... | Subject | [PATCH v2] mm/hugetlb: remove redundant check in preparing and destroying gigantic page | Date | Tue, 2 Feb 2021 19:20:02 +0800 |
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From: Yanfei Xu <yanfei.xu@windriver.com>
Gigantic page is a compound page and its order is more than 1. Thus it must be available for hpage_pincount. Let's remove the redundant check for gigantic page.
Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com> --- mm/hugetlb.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index a3e4fa2c5e94..dac5db569ccb 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1219,8 +1219,7 @@ static void destroy_compound_gigantic_page(struct page *page, struct page *p = page + 1; atomic_set(compound_mapcount_ptr(page), 0); - if (hpage_pincount_available(page)) - atomic_set(compound_pincount_ptr(page), 0); + atomic_set(compound_pincount_ptr(page), 0); for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) { clear_compound_head(p); @@ -1501,9 +1500,7 @@ static void prep_compound_gigantic_page(struct page *page, unsigned int order) set_compound_head(p, page); } atomic_set(compound_mapcount_ptr(page), -1); - - if (hpage_pincount_available(page)) - atomic_set(compound_pincount_ptr(page), 0); + atomic_set(compound_pincount_ptr(page), 0); } /* -- 2.27.0
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