From d79d176a303775e2ccb16ca3c08bb63c030aa4dc Mon Sep 17 00:00:00 2001 From: Baoquan He Date: Tue, 13 Oct 2020 16:56:14 -0700 Subject: mm/hugetlb.c: remove the unnecessary non_swap_entry() If a swap entry tests positive for either is_[migration|hwpoison]_entry(), then its swap_type() is among SWP_MIGRATION_READ, SWP_MIGRATION_WRITE and SWP_HWPOISON. All these types >= MAX_SWAPFILES, exactly what is asserted with non_swap_entry(). So the checking non_swap_entry() in is_hugetlb_entry_migration() and is_hugetlb_entry_hwpoisoned() is redundant. Let's remove it to optimize code. Signed-off-by: Baoquan He Signed-off-by: Andrew Morton Reviewed-by: Mike Kravetz Reviewed-by: David Hildenbrand Reviewed-by: Anshuman Khandual Link: https://lkml.kernel.org/r/20200723032248.24772-3-bhe@redhat.com Signed-off-by: Linus Torvalds --- mm/hugetlb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'mm/hugetlb.c') diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 57b96c1d5265..a7d312cc018e 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3799,7 +3799,7 @@ bool is_hugetlb_entry_migration(pte_t pte) if (huge_pte_none(pte) || pte_present(pte)) return false; swp = pte_to_swp_entry(pte); - if (non_swap_entry(swp) && is_migration_entry(swp)) + if (is_migration_entry(swp)) return true; else return false; @@ -3812,7 +3812,7 @@ static bool is_hugetlb_entry_hwpoisoned(pte_t pte) if (huge_pte_none(pte) || pte_present(pte)) return false; swp = pte_to_swp_entry(pte); - if (non_swap_entry(swp) && is_hwpoison_entry(swp)) + if (is_hwpoison_entry(swp)) return true; else return false; -- cgit v1.2.3