[PATCH v3 09/14] x86: Minimal SLAB alignment

[Maciej Wieczor-Retman]

Adjust x86 minimal SLAB alignment to match KASAN granularity size. In
tag-based mode the size changes to 16 bytes so the value needs to be 16.

Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@xxxxxxxxx>
---
Changelog v3:
- Fix typo in patch message 4 -> 16.
- Change define location to arch/x86/include/asm/cache.c.

 arch/x86/include/asm/cache.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
index 69404eae9983..3232583b5487 100644
--- a/arch/x86/include/asm/cache.h
+++ b/arch/x86/include/asm/cache.h
@@ -21,4 +21,8 @@
 #endif
 #endif
 
+#ifdef CONFIG_KASAN_SW_TAGS
+#define ARCH_SLAB_MINALIGN (1ULL << KASAN_SHADOW_SCALE_SHIFT)
+#endif
+
 #endif /* _ASM_X86_CACHE_H */
-- 
2.49.0