diff --git a/include/linux/linkage.h b/include/linux/linkage.h index b11660b706c5..53fe1f48fd28 100644 --- a/include/linux/linkage.h +++ b/include/linux/linkage.h @@ -39,6 +39,10 @@ #define __page_aligned_data __section(".data..page_aligned") __aligned(PAGE_SIZE) #define __page_aligned_bss __section(".bss..page_aligned") __aligned(PAGE_SIZE) +#ifndef __bss_pgtbl +#define __bss_pgtbl __page_aligned_bss +#endif + /* * For assembly routines. * diff --git a/mm/kasan/init.c b/mm/kasan/init.c index 9c880f607c6a..66a883887987 100644 --- a/mm/kasan/init.c +++ b/mm/kasan/init.c @@ -26,10 +26,10 @@ * - Latter it reused it as zero shadow to cover large ranges of memory * that allowed to access, but not handled by kasan (vmalloc/vmemmap ...). */ -unsigned char kasan_early_shadow_page[PAGE_SIZE] __page_aligned_bss; +unsigned char kasan_early_shadow_page[PAGE_SIZE] __bss_pgtbl; #if CONFIG_PGTABLE_LEVELS > 4 -p4d_t kasan_early_shadow_p4d[MAX_PTRS_PER_P4D] __page_aligned_bss; +p4d_t kasan_early_shadow_p4d[MAX_PTRS_PER_P4D] __bss_pgtbl; static inline bool kasan_p4d_table(pgd_t pgd) { return pgd_page(pgd) == virt_to_page(lm_alias(kasan_early_shadow_p4d)); @@ -41,7 +41,7 @@ static inline bool kasan_p4d_table(pgd_t pgd) } #endif #if CONFIG_PGTABLE_LEVELS > 3 -pud_t kasan_early_shadow_pud[MAX_PTRS_PER_PUD] __page_aligned_bss; +pud_t kasan_early_shadow_pud[MAX_PTRS_PER_PUD] __bss_pgtbl; static inline bool kasan_pud_table(p4d_t p4d) { return p4d_page(p4d) == virt_to_page(lm_alias(kasan_early_shadow_pud)); @@ -53,7 +53,7 @@ static inline bool kasan_pud_table(p4d_t p4d) } #endif #if CONFIG_PGTABLE_LEVELS > 2 -pmd_t kasan_early_shadow_pmd[MAX_PTRS_PER_PMD] __page_aligned_bss; +pmd_t kasan_early_shadow_pmd[MAX_PTRS_PER_PMD] __bss_pgtbl; static inline bool kasan_pmd_table(pud_t pud) { return pud_page(pud) == virt_to_page(lm_alias(kasan_early_shadow_pmd)); @@ -65,7 +65,7 @@ static inline bool kasan_pmd_table(pud_t pud) } #endif pte_t kasan_early_shadow_pte[MAX_PTRS_PER_PTE + PTE_HWTABLE_PTRS] - __page_aligned_bss; + __bss_pgtbl; static inline bool kasan_pte_table(pmd_t pmd) {