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-rw-r--r--util/module.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/util/module.c b/util/module.c
index a5f7fbd941..c90973721f 100644
--- a/util/module.c
+++ b/util/module.c
@@ -163,14 +163,28 @@ void module_load_one(const char *prefix, const char *lib_name)
char *fname = NULL;
char *exec_dir;
char *dirs[3];
+ char *module_name;
int i = 0;
int ret;
+ static GHashTable *loaded_modules;
if (!g_module_supported()) {
fprintf(stderr, "Module is not supported by system.\n");
return;
}
+ if (!loaded_modules) {
+ loaded_modules = g_hash_table_new(g_str_hash, g_str_equal);
+ }
+
+ module_name = g_strdup_printf("%s%s", prefix, lib_name);
+
+ if (g_hash_table_lookup(loaded_modules, module_name)) {
+ g_free(module_name);
+ return;
+ }
+ g_hash_table_insert(loaded_modules, module_name, module_name);
+
exec_dir = qemu_get_exec_dir();
dirs[i++] = g_strdup_printf("%s", CONFIG_QEMU_MODDIR);
dirs[i++] = g_strdup_printf("%s/..", exec_dir ? : "");
@@ -180,8 +194,8 @@ void module_load_one(const char *prefix, const char *lib_name)
exec_dir = NULL;
for (i = 0; i < ARRAY_SIZE(dirs); i++) {
- fname = g_strdup_printf("%s/%s%s%s",
- dirs[i], prefix, lib_name, HOST_DSOSUF);
+ fname = g_strdup_printf("%s/%s%s",
+ dirs[i], module_name, HOST_DSOSUF);
ret = module_load_file(fname);
g_free(fname);
fname = NULL;