Re: [PATCH 03/37] perf tools: Use perf_data_file__fd() consistently

From: David Ahern
Date: Fri Dec 26 2014 - 11:30:57 EST


On 12/24/14 12:14 AM, Namhyung Kim wrote:

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 84df2deed988..d8b13407594d 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -375,8 +375,10 @@ static int __cmd_inject(struct perf_inject *inject)
}
}


How about a local variable to make this more readable?
fd = perf_data_file__fd(file_out)

- if (!file_out->is_pipe)
- lseek(file_out->fd, session->header.data_offset, SEEK_SET);
+ if (!file_out->is_pipe) {
+ lseek(perf_data_file__fd(file_out), session->header.data_offset,
+ SEEK_SET);
+ }

ret = perf_session__process_events(session, &inject->tool);

@@ -385,7 +387,8 @@ static int __cmd_inject(struct perf_inject *inject)
perf_header__set_feat(&session->header,
HEADER_BUILD_ID);
session->header.data_size = inject->bytes_written;
- perf_session__write_header(session, session->evlist, file_out->fd, true);
+ perf_session__write_header(session, session->evlist,
+ perf_data_file__fd(file_out), true);
}

return ret;
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index aa5fa6aabb31..054c6e57d3b9 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -196,7 +196,7 @@ static int process_buildids(struct record *rec)
struct perf_session *session = rec->session;
u64 start = session->header.data_offset;

- u64 size = lseek(file->fd, 0, SEEK_CUR);
+ u64 size = lseek(perf_data_file__fd(file), 0, SEEK_CUR);
if (size == 0)
return 0;

@@ -360,12 +360,12 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
perf_header__clear_feat(&session->header, HEADER_GROUP_DESC);

Similarly in this function.


if (file->is_pipe) {
- err = perf_header__write_pipe(file->fd);
+ err = perf_header__write_pipe(perf_data_file__fd(file));
if (err < 0)
goto out_child;
} else {
err = perf_session__write_header(session, rec->evlist,
- file->fd, false);
+ perf_data_file__fd(file), false);
if (err < 0)
goto out_child;
}
@@ -397,8 +397,10 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
* return this more properly and also
* propagate errors that now are calling die()
*/
- err = perf_event__synthesize_tracing_data(tool, file->fd, rec->evlist,
- process_synthesized_event);
+ err = perf_event__synthesize_tracing_data(tool,
+ perf_data_file__fd(file),
+ rec->evlist,
+ process_synthesized_event);
if (err <= 0) {
pr_err("Couldn't record tracing data.\n");
goto out_child;
@@ -541,7 +543,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
if (!rec->no_buildid)
process_buildids(rec);
perf_session__write_header(rec->session, rec->evlist,
- file->fd, true);
+ perf_data_file__fd(&rec->file), true);
}

out_delete_session:

David

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/