diff --git a/include/os/linux/spl/sys/errno.h b/include/os/linux/spl/sys/errno.h
index 6015b1a3e2..f6d9212a61 100644
--- a/include/os/linux/spl/sys/errno.h
+++ b/include/os/linux/spl/sys/errno.h
@@ -44,4 +44,14 @@
 
 #define	ENOTSUP		EOPNOTSUPP
 
+/*
+ * We'll take the unused errnos, 'EBADE' and 'EBADR' (from the Convergent
+ * graveyard) to indicate checksum errors and fragmentation.
+ */
+#define	ECKSUM	EBADE
+#define	EFRAGS	EBADR
+
+/* Similar for ENOACTIVE */
+#define	ENOTACTIVE	ENOANO
+
 #endif	/* _SYS_ERRNO_H */
diff --git a/include/sys/zio.h b/include/sys/zio.h
index bf441ff8d5..23a4a6ea93 100644
--- a/include/sys/zio.h
+++ b/include/sys/zio.h
@@ -265,16 +265,6 @@ enum zio_wait_type {
 	ZIO_WAIT_TYPES
 };
 
-/*
- * We'll take the unused errnos, 'EBADE' and 'EBADR' (from the Convergent
- * graveyard) to indicate checksum errors and fragmentation.
- */
-#define	ECKSUM	EBADE
-#define	EFRAGS	EBADR
-
-/* Similar for ENOACTIVE */
-#define	ENOTACTIVE	ENOANO
-
 typedef void zio_done_func_t(zio_t *zio);
 
 extern int zio_dva_throttle_enabled;
diff --git a/lib/libspl/include/os/linux/sys/Makefile.am b/lib/libspl/include/os/linux/sys/Makefile.am
index c11732cc1f..6b170fa8c8 100644
--- a/lib/libspl/include/os/linux/sys/Makefile.am
+++ b/lib/libspl/include/os/linux/sys/Makefile.am
@@ -1,6 +1,7 @@
 libspldir = $(includedir)/libspl/sys
 libspl_HEADERS = \
 	$(top_srcdir)/lib/libspl/include/os/linux/sys/byteorder.h \
+	$(top_srcdir)/lib/libspl/include/os/linux/sys/errno.h \
 	$(top_srcdir)/lib/libspl/include/os/linux/sys/file.h \
 	$(top_srcdir)/lib/libspl/include/os/linux/sys/mnttab.h \
 	$(top_srcdir)/lib/libspl/include/os/linux/sys/mount.h \
diff --git a/lib/libspl/include/sys/errno.h b/lib/libspl/include/os/linux/sys/errno.h
similarity index 84%
rename from lib/libspl/include/sys/errno.h
rename to lib/libspl/include/os/linux/sys/errno.h
index e8bfbe3538..30d20ab895 100644
--- a/lib/libspl/include/sys/errno.h
+++ b/lib/libspl/include/os/linux/sys/errno.h
@@ -31,5 +31,16 @@
  */
 #ifndef _LIBSPL_SYS_ERRNO_H
 #define	_LIBSPL_SYS_ERRNO_H
+
 #include <errno.h>
+/*
+ * We'll take the unused errnos, 'EBADE' and 'EBADR' (from the Convergent
+ * graveyard) to indicate checksum errors and fragmentation.
+ */
+#define	ECKSUM	EBADE
+#define	EFRAGS	EBADR
+
+/* Similar for ENOACTIVE */
+#define	ENOTACTIVE	ENOANO
+
 #endif /* _LIBSPL_SYS_ERRNO_H */
diff --git a/lib/libspl/include/sys/Makefile.am b/lib/libspl/include/sys/Makefile.am
index 54aece1299..6855a39d12 100644
--- a/lib/libspl/include/sys/Makefile.am
+++ b/lib/libspl/include/sys/Makefile.am
@@ -11,7 +11,6 @@ libspl_HEADERS = \
 	$(top_srcdir)/lib/libspl/include/sys/debug.h \
 	$(top_srcdir)/lib/libspl/include/sys/dkio.h \
 	$(top_srcdir)/lib/libspl/include/sys/dklabel.h \
-	$(top_srcdir)/lib/libspl/include/sys/errno.h \
 	$(top_srcdir)/lib/libspl/include/sys/feature_tests.h \
 	$(top_srcdir)/lib/libspl/include/sys/int_limits.h \
 	$(top_srcdir)/lib/libspl/include/sys/int_types.h \