[RFC PATCH 26/34] x86: mm: define pudp_set_access_flags() when CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD is enabled only.
Yeoreum Yun <[email protected]>
| Newsgroups | org.kernel.vger.linux-arch,dev.linux.lists.loongarch,org.infradead.lists.kvm-riscv,org.infradead.lists.linux-riscv,org.kernel.vger.linux-csky,org.kernel.vger.linux-kernel,org.kernel.vger.linux-m68k,org.kernel.vger.linux-mips,org.kernel.vger.linux-openrisc |
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| Message-ID | <[email protected]> |
We want to rework how set_pXd() behaves for generic compile-time folded page tables by disallowing its use and triggering a compile-time error when it is used improperly, ensuring that the actual first-level set_pXd() function is used instead. For this, define pudp_set_access_flags() when CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD is enabled only. Signed-off-by: Yeoreum Yun <[email protected]> --- arch/x86/mm/pgtable.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index e4bf6a1d63618..a263625cdcd6b 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -418,6 +418,7 @@ int pmdp_set_access_flags(struct vm_area_struct *vma, return changed; } +#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD int pudp_set_access_flags(struct vm_area_struct *vma, unsigned long address, pud_t *pudp, pud_t entry, int dirty) { @@ -437,6 +438,7 @@ int pudp_set_access_flags(struct vm_area_struct *vma, unsigned long address, return changed; } +#endif /* CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */ #endif bool ptep_test_and_clear_young(struct vm_area_struct *vma, -- LEVI:{C3F47F37-75D8-414A-A8BA-3980EC8A46D7}