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Diffstat (limited to 'arch/s390/include/uapi/asm/dasd.h')
-rw-r--r--arch/s390/include/uapi/asm/dasd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/dasd.h b/arch/s390/include/uapi/asm/dasd.h
index e73e1b0db19b..48a2f475b90a 100644
--- a/arch/s390/include/uapi/asm/dasd.h
+++ b/arch/s390/include/uapi/asm/dasd.h
@@ -193,6 +193,7 @@ typedef struct format_data_t {
#define DASD_FMT_INT_FMT_HA 2 /* write home address, also set FMT_R0 ! */
#define DASD_FMT_INT_INVAL 4 /* invalidate tracks */
#define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */
+#define DASD_FMT_INT_FMT_NOR0 16 /* remove permission to write record zero */
/*
* struct format_check_t