trace: update old trace events in docs

Commit c5f1ad4 ("block: Remove bdrv_aio_readv/writev/flush()") removed bdrv_aio_readv()/bdrv_aio_writev() so the example in the tracing documentation is no longer valid. Reported-by: Wang Dong <[email protected]> Signed-off-by: Stefan Hajnoczi <[email protected]> Reviewed-by: Eric Blake <[email protected]> Message-id: [email protected] Signed-off-by: Stefan Hajnoczi <[email protected]>
walexzzy · Jul 17, 2017 · 304187c · 304187c
1 parent 5caa262
commit 304187c
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/docs/devel/tracing.txt b/docs/devel/tracing.txt
@@ -14,8 +14,7 @@ for debugging, profiling, and observing execution.
 
 2. Create a file with the events you want to trace:
 
-   echo bdrv_aio_readv   > /tmp/events
-   echo bdrv_aio_writev >> /tmp/events
+   echo memory_region_ops_read >/tmp/events
 
 3. Run the virtual machine to produce a trace file: