perf tools: Delay loading symtabs till we hit a map with it

So that we can have a quicker start on perf top and even
speedups in the other tools, as we can have maps with no hits,
so no need to load its symtabs.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256773881-4191-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 9 insertions, 7 deletions

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 8f0208ce237a..0273d83f728f 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -909,6 +909,8 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
         int ret = -1;
         int fd;
 
+        self->loaded = true;
+
         if (!name)
                 return -1;
 
@@ -1019,6 +1021,8 @@ static int dso__load_module_sym(struct dso *self, struct map *map,
 {
         int err = 0, fd = open(self->long_name, O_RDONLY);
 
+        self->loaded = true;
+
         if (fd < 0) {
                 pr_err("%s: cannot open %s\n", __func__, self->long_name);
                 return err;
@@ -1214,6 +1218,8 @@ static int dso__load_vmlinux(struct dso *self, struct map *map,
 {
         int err, fd = open(vmlinux, O_RDONLY);
 
+        self->loaded = true;
+
         if (fd < 0)
                 return -1;
 
@@ -1312,19 +1318,15 @@ static struct dso *dsos__find(const char *name)
         return NULL;
 }
 
-struct dso *dsos__findnew(const char *name, unsigned int sym_priv_size,
-                          bool *is_new)
+struct dso *dsos__findnew(const char *name, unsigned int sym_priv_size)
 {
         struct dso *dso = dsos__find(name);
 
         if (!dso) {
                 dso = dso__new(name, sym_priv_size);
-                if (dso) {
+                if (dso != NULL)
                         dsos__add(dso);
-                        *is_new = true;
-                }
-        } else
-                *is_new = false;
+        }
 
         return dso;
 }