[PATCH] Support for live tracing

[blktrace.git] / blktrace_api.h

diff --git a/blktrace_api.h b/blktrace_api.h
index 3861ab6dcfb9ecefc46cc3b827f18925831b582b..5b0ab319b0d579657b70f5aeecf5bf016bb503d3 100644 (file)
--- a/blktrace_api.h
+++ b/blktrace_api.h
@@ -51,7 +51,7 @@ enum {
 #define BLK_TA_COMPLETE                (__BLK_TA_COMPLETE| BLK_TC_ACT(BLK_TC_COMPLETE))
 
 #define BLK_IO_TRACE_MAGIC     0x65617400
-#define BLK_IO_TRACE_VERSION   0x02
+#define BLK_IO_TRACE_VERSION   0x03
 
 /*
  * The trace itself
@@ -64,6 +64,7 @@ struct blk_io_trace {
        __u32 bytes;            /* transfer length */
        __u32 action;           /* what happened */
        __u32 pid;              /* who did it */
+       __u16 cpu;              /* on what cpu did it happen */
        __u16 error;            /* completion error */
        __u16 pdu_len;          /* length of data after this trace */
 };