Fix kernel unaligned access on sparc64

[zfs] / lib / libspl / include / sys / isa_defs.h

diff --git a/lib/libspl/include/sys/isa_defs.h b/lib/libspl/include/sys/isa_defs.h
index a5bea0396e7b21f87fa86da980bea368fdea638f..7a90e077e8079512f52dceaba6965fd56dbb7fd7 100644 (file)
--- a/lib/libspl/include/sys/isa_defs.h
+++ b/lib/libspl/include/sys/isa_defs.h
@@ -55,6 +55,7 @@ extern "C" {
 #endif
 
 #define        _SUNOS_VTOC_16
+#define        HAVE_EFFICIENT_UNALIGNED_ACCESS
 
 /* i386 arch specific defines */
 #elif defined(__i386) || defined(__i386__)
@@ -76,6 +77,7 @@ extern "C" {
 #endif
 
 #define        _SUNOS_VTOC_16
+#define        HAVE_EFFICIENT_UNALIGNED_ACCESS
 
 /* powerpc arch specific defines */
 #elif defined(__powerpc) || defined(__powerpc__) || defined(__powerpc64__)
@@ -99,6 +101,7 @@ extern "C" {
 #endif
 
 #define        _SUNOS_VTOC_16
+#define        HAVE_EFFICIENT_UNALIGNED_ACCESS
 
 /* arm arch specific defines */
 #elif defined(__arm) || defined(__arm__) || defined(__aarch64__)
@@ -129,6 +132,10 @@ extern "C" {
 
 #define        _SUNOS_VTOC_16
 
+#if defined(__ARM_FEATURE_UNALIGNED)
+#define        HAVE_EFFICIENT_UNALIGNED_ACCESS
+#endif
+
 /* sparc arch specific defines */
 #elif defined(__sparc) || defined(__sparc__)