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Subject[PATCH] arm/kasan: kasan_alloc a more precise size for pte
Date
From: Hailong Liu <liu.hailong6@zte.com.cn>

The *PTE_HWTABLE_OFF + PTE_HWTABLE_SIZE* may be a more accurate and
meaningful size for PTE tables than *PAGE_SIZE* when populating the
PMD entries for arm.

Signed-off-by: Hailong Liu <liu.hailong6@zte.com.cn>
---
arch/arm/mm/kasan_init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mm/kasan_init.c b/arch/arm/mm/kasan_init.c
index 9c348042a724..c2a697704d6c 100644
--- a/arch/arm/mm/kasan_init.c
+++ b/arch/arm/mm/kasan_init.c
@@ -99,7 +99,7 @@ static void __init kasan_pmd_populate(pud_t *pudp, unsigned long addr,
* allocated.
*/
void *p = early ? kasan_early_shadow_pte :
- kasan_alloc_block(PAGE_SIZE);
+ kasan_alloc_block(PTE_HWTABLE_OFF + PTE_HWTABLE_SIZE);

if (!p) {
panic("%s failed to allocate shadow block for address 0x%lx\n",
--
2.17.1

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