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| author | Baolin Wang <baolin.wang@linux.alibaba.com> | 2026-03-21 14:42:49 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-04-05 13:53:35 -0700 |
| commit | a62ca3f40feaaaf0dfc4db1f2edeca5a70f4123d (patch) | |
| tree | 4cd7340e8a6ac1c21e0c6d83a476b6b361f6f66e /arch/riscv/include | |
| parent | f2a48f8fb56466488f7525e3349d4e2f45dc5d74 (diff) | |
| download | lwn-a62ca3f40feaaaf0dfc4db1f2edeca5a70f4123d.tar.gz lwn-a62ca3f40feaaaf0dfc4db1f2edeca5a70f4123d.zip | |
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 <baolin.wang@linux.alibaba.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Reviewed-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/pgtable.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index ab4ce1cc9d9c..643d12481b02 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -659,8 +659,8 @@ static inline void pte_clear(struct mm_struct *mm, extern int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address, pte_t *ptep, pte_t entry, int dirty); #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG /* defined in mm/pgtable.c */ -extern int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long address, - pte_t *ptep); +bool ptep_test_and_clear_young(struct vm_area_struct *vma, + unsigned long address, pte_t *ptep); #define __HAVE_ARCH_PTEP_GET_AND_CLEAR static inline pte_t ptep_get_and_clear(struct mm_struct *mm, |