Also support protocol version 8 in conjunction with protocol version 7.

Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 blktrace.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/blktrace.h b/blktrace.h
index 0281088..ba06237 100644
--- a/blktrace.h
+++ b/blktrace.h
@@ -70,6 +70,7 @@ extern struct timespec abs_start_time;
 
 #define CHECK_MAGIC(magic)		(((magic) & 0xffffff00) == BLK_IO_TRACE_MAGIC)
 #define SUPPORTED_VERSION	(0x07)
+#define SUPPORTED_VERSION2	(0x08)
 
 #if __BYTE_ORDER == __LITTLE_ENDIAN
 #define be16_to_cpu(x)		__bswap_16(x)
@@ -99,7 +100,8 @@ static inline int verify_trace(__u32 magic)
 	}
 
 	version = magic & 0xff;
-	if (version != SUPPORTED_VERSION) {
+	if (version != SUPPORTED_VERSION &&
+	    version != SUPPORTED_VERSION2) {
 		fprintf(stderr, "unsupported trace version %x\n", version);
 		return 1;
 	}
-- 
2.51.1