* trace-cmd record: Update filter_command() to use tracefs_instance_file_append()
@ 2021-05-13 21:03 Steven Rostedt
0 siblings, 0 replies; only message in thread
From: Steven Rostedt @ 2021-05-13 21:03 UTC (permalink / raw)
To: Linux Trace Devel
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Now that trace-cmd depends on libtracefs 1.2, have filter_command use the
tracefs_instance_file_append() as it had originally when first added,
instead of open coding it for libtracefs 1.1.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
tracecmd/trace-record.c | 15 +--------------
1 file changed, 1 insertion(+), 14 deletions(-)
diff --git a/tracecmd/trace-record.c b/tracecmd/trace-record.c
index 5219d60b..ba9542ff 100644
--- a/tracecmd/trace-record.c
+++ b/tracecmd/trace-record.c
@@ -4556,20 +4556,7 @@ enum filter_type {
static int filter_command(struct tracefs_instance *instance, const char *cmd)
{
- char *path;
- int ret;
- int fd;
-
- path = tracefs_instance_get_file(instance, "set_ftrace_filter");
- if (!path)
- return -1;
- fd = open(path, O_WRONLY);
- tracefs_put_tracing_file(path);
- if (fd < 0)
- return -1;
- ret = write(fd, cmd, strlen(cmd));
- close(fd);
- return ret;
+ return tracefs_instance_file_append(instance, "set_ftrace_filter", cmd);
}
static int write_func_filter(enum filter_type type, struct buffer_instance *instance,
--
2.29.2
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