[PATCH v8 09/21] x86/paravirt: Align paravirt thunk functions at 16-byte boundaries

[Josh Poimboeuf]

Paravirt thunk functions aren't aligned, which can impact performance
and is inconsistent with gcc-generated functions.

Align them at 16-byte boundaries to be consistent with gcc functions.

Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
 arch/x86/include/asm/paravirt.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 2545f3e..5dcbf17 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -778,6 +778,7 @@ static __always_inline void __ticket_unlock_kick(struct arch_spinlock *lock,
 	extern typeof(func) __raw_callee_save_##func;			\
 									\
 	asm(".pushsection .text;"					\
+	    ".align 16;"						\
 	    ".globl " PV_THUNK_NAME(func) ";"				\
 	    ".type " PV_THUNK_NAME(func) ", @function;"			\
 	    PV_THUNK_NAME(func) ":"					\
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/