perf session: Remove superfluous callchain_cursor member

Since we have it in evsel->hists.callchain_cursor, remove it from
perf_session.

One more step in disentangling several places from requiring a
perf_session pointer.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-rxr5dj3di7ckyfmnz0naku1z@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 8 insertions, 9 deletions

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 6e7d5f5..734358b 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -216,7 +216,7 @@ static bool symbol__match_parent_regex(struct symbol *sym)
 	return 0;
 }
 
-int perf_session__resolve_callchain(struct perf_session *self,
+int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
 				    struct thread *thread,
 				    struct ip_callchain *chain,
 				    struct symbol **parent)
@@ -225,7 +225,7 @@ int perf_session__resolve_callchain(struct perf_session *self,
 	unsigned int i;
 	int err;
 
-	callchain_cursor_reset(&self->callchain_cursor);
+	callchain_cursor_reset(&evsel->hists.callchain_cursor);
 
 	for (i = 0; i < chain->nr; i++) {
 		u64 ip;
@@ -261,7 +261,7 @@ int perf_session__resolve_callchain(struct perf_session *self,
 				break;
 		}
 
-		err = callchain_cursor_append(&self->callchain_cursor,
+		err = callchain_cursor_append(&evsel->hists.callchain_cursor,
 					      ip, al.map, al.sym);
 		if (err)
 			return err;
@@ -1254,14 +1254,14 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 	return NULL;
 }
 
-void perf_session__print_ip(union perf_event *event,
+void perf_session__print_ip(union perf_event *event, struct perf_evsel *evsel,
 			    struct perf_sample *sample,
 			    struct perf_session *session,
 			    int print_sym, int print_dso)
 {
 	struct addr_location al;
 	const char *symname, *dsoname;
-	struct callchain_cursor *cursor = &session->callchain_cursor;
+	struct callchain_cursor *cursor = &evsel->hists.callchain_cursor;
 	struct callchain_cursor_node *node;
 
 	if (perf_event__preprocess_sample(event, session, &al, sample,
@@ -1273,7 +1273,7 @@ void perf_session__print_ip(union perf_event *event,
 
 	if (symbol_conf.use_callchain && sample->callchain) {
 
-		if (perf_session__resolve_callchain(session, al.thread,
+		if (perf_session__resolve_callchain(session, evsel, al.thread,
 						sample->callchain, NULL) != 0) {
 			if (verbose)
 				error("Failed to resolve callchain. Skipping\n");
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 13bd5e0..d2f4303 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -50,7 +50,6 @@ struct perf_session {
 	int			cwdlen;
 	char			*cwd;
 	struct ordered_samples	ordered_samples;
-	struct callchain_cursor	callchain_cursor;
 	char			filename[0];
 };
 
@@ -100,7 +99,7 @@ int __perf_session__process_events(struct perf_session *self,
 int perf_session__process_events(struct perf_session *self,
 				 struct perf_event_ops *event_ops);
 
-int perf_session__resolve_callchain(struct perf_session *self,
+int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
 				    struct thread *thread,
 				    struct ip_callchain *chain,
 				    struct symbol **parent);
@@ -169,7 +168,7 @@ static inline int perf_session__parse_sample(struct perf_session *session,
 struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
 					    unsigned int type);
 
-void perf_session__print_ip(union perf_event *event,
+void perf_session__print_ip(union perf_event *event, struct perf_evsel *evsel,
 				 struct perf_sample *sample,
 				 struct perf_session *session,
 				 int print_sym, int print_dso);