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 6e7d5f54b37d..734358b51ed1 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 13bd5e0a0691..d2f430367713 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);