From a62ca3f40feaaaf0dfc4db1f2edeca5a70f4123d Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Sat, 21 Mar 2026 14:42:49 +0800 Subject: mm: change to return bool for ptep_test_and_clear_young() Patch series "change young flag check functions to return bool", v2. This is a cleanup patchset to change all young flag check functions to return bool, as discussed with David in the previous thread[1]. Since callers only care about whether the young flag was set, returning bool makes the intention clearer. No functional changes intended. This patch (of 6): Callers use ptep_test_and_clear_young() to clear the young flag and check whether it was set. Change the return type to bool to make the intention clearer. Link: https://lkml.kernel.org/r/cover.1774075004.git.baolin.wang@linux.alibaba.com Link: https://lkml.kernel.org/r/57e70efa9703d43959aa645246ea3cbdba14fa17.1774075004.git.baolin.wang@linux.alibaba.com Signed-off-by: Baolin Wang Reviewed-by: Ritesh Harjani (IBM) Reviewed-by: Lorenzo Stoakes (Oracle) Acked-by: David Hildenbrand (Arm) Cc: Liam Howlett Cc: Michal Hocko Cc: Mike Rapoport Cc: Suren Baghdasaryan Signed-off-by: Andrew Morton --- arch/parisc/include/asm/pgtable.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'arch/parisc/include/asm') diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index f6fb99cb94d9..7097c785f690 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -438,16 +438,17 @@ static inline pte_t ptep_get(pte_t *ptep) } #define ptep_get ptep_get -static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) +static inline bool ptep_test_and_clear_young(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep) { pte_t pte; pte = ptep_get(ptep); if (!pte_young(pte)) { - return 0; + return false; } set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte)); - return 1; + return true; } int ptep_clear_flush_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep); -- cgit v1.2.3