Merge tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux...

[sfrench/cifs-2.6.git] / arch / x86 / include / asm / barrier.h

diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
index fe1e7e3cc844a84e08908e44094d020d2fa2107a..63bdc6b85219716cd000aa2551ec5133bafeaec7 100644 (file)
--- a/arch/x86/include/asm/barrier.h
+++ b/arch/x86/include/asm/barrier.h
@@ -79,6 +79,9 @@ do {                                                                  \
 #define __smp_mb__before_atomic()      do { } while (0)
 #define __smp_mb__after_atomic()       do { } while (0)
 
+/* Writing to CR3 provides a full memory barrier in switch_mm(). */
+#define smp_mb__after_switch_mm()      do { } while (0)
+
 #include <asm-generic/barrier.h>
 
 #endif /* _ASM_X86_BARRIER_H */