1 files changed, 43 insertions, 0 deletions

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 3b8c00506672..6f0dd90c36ce 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -2107,6 +2107,36 @@ int __machine__create_kernel_maps(struct machine *self, struct dso *kernel)
         return 0;
 }
 
+void machine__destroy_kernel_maps(struct machine *self)
+{
+        enum map_type type;
+
+        for (type = 0; type < MAP__NR_TYPES; ++type) {
+                struct kmap *kmap;
+
+                if (self->vmlinux_maps[type] == NULL)
+                        continue;
+
+                kmap = map__kmap(self->vmlinux_maps[type]);
+                map_groups__remove(&self->kmaps, self->vmlinux_maps[type]);
+                if (kmap->ref_reloc_sym) {
+                        /*
+                         * ref_reloc_sym is shared among all maps, so free just
+                         * on one of them.
+                         */
+                        if (type == MAP__FUNCTION) {
+                                free((char *)kmap->ref_reloc_sym->name);
+                                kmap->ref_reloc_sym->name = NULL;
+                                free(kmap->ref_reloc_sym);
+                        }
+                        kmap->ref_reloc_sym = NULL;
+                }
+
+                map__delete(self->vmlinux_maps[type]);
+                self->vmlinux_maps[type] = NULL;
+        }
+}
+
 int machine__create_kernel_maps(struct machine *self)
 {
         struct dso *kernel = machine__create_kernel(self);
@@ -2351,6 +2381,19 @@ failure:
         return ret;
 }
 
+void machines__destroy_guest_kernel_maps(struct rb_root *self)
+{
+        struct rb_node *next = rb_first(self);
+
+        while (next) {
+                struct machine *pos = rb_entry(next, struct machine, rb_node);
+
+                next = rb_next(&pos->rb_node);
+                rb_erase(&pos->rb_node, self);
+                machine__delete(pos);
+        }
+}
+
 int machine__load_kallsyms(struct machine *self, const char *filename,
                            enum map_type type, symbol_filter_t filter)
 {