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mm: change to return bool for pmdp_test_and_clear_young()

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Callers use pmdp_test_and_clear_young() to clear the young flag and check
whether it was set for this PMD entry.  Change the return type to bool to
make the intention clearer.

Link: https://lkml.kernel.org/r/f1d31307a13365d3d0fed5809727dcc2dd59631b.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>
This commit is contained in:
Baolin Wang
2026-03-21 14:42:51 +08:00
committed by Andrew Morton
parent 06c4dfa3ce
commit 42e26354c4
8 changed files with 27 additions and 29 deletions
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10
arch/powerpc/include/asm/book3s/64/pgtable.h
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@@ -1161,13 +1161,13 @@ pud_hugepage_update(struct mm_struct *mm, unsigned long addr, pud_t *pudp,
* For radix we should always find H_PAGE_HASHPTE zero. Hence
* the below will work for radix too
*/
static inline int __pmdp_test_and_clear_young(struct mm_struct *mm,
unsigned long addr, pmd_t *pmdp)
static inline bool __pmdp_test_and_clear_young(struct mm_struct *mm,
unsigned long addr, pmd_t *pmdp)
{
unsigned long old;
if ((pmd_raw(*pmdp) & cpu_to_be64(_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0)
return 0;
return false;
old = pmd_hugepage_update(mm, addr, pmdp, _PAGE_ACCESSED, 0);
return ((old & _PAGE_ACCESSED) != 0);
}
@@ -1300,8 +1300,8 @@ extern int pudp_set_access_flags(struct vm_area_struct *vma,
pud_t entry, int dirty);
#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
extern int pmdp_test_and_clear_young(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp);
bool pmdp_test_and_clear_young(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp);
#define __HAVE_ARCH_PUDP_TEST_AND_CLEAR_YOUNG
extern int pudp_test_and_clear_young(struct vm_area_struct *vma,
unsigned long address, pud_t *pudp);