diff --git a/qtfs/qtfs_server/fsops.c b/qtfs/qtfs_server/fsops.c
index c1705d64524f326c3a33ce83feb3ab27f9753b46..32624e83c08d98139c9fa33bcdf761e88c0fce83 100644
--- a/qtfs/qtfs_server/fsops.c
+++ b/qtfs/qtfs_server/fsops.c
@@ -49,7 +49,9 @@ bool in_white_list(char *path, int type)
 {
 	int i, in_wl = -1;
 
+    read_lock(&g_whitelist_lock);
 	if (!g_whitelist[type]) {
+        read_unlock(&g_whitelist_lock);
 		return true;
 	}
 	for (i = 0; i < g_whitelist[type]->len; i++) {
@@ -58,6 +60,7 @@ bool in_white_list(char *path, int type)
 			break;
 		}
 	}
+    read_unlock(&g_whitelist_lock);
 	return in_wl != -1;
 }
 
diff --git a/qtfs/qtfs_server/qtfs-server.c b/qtfs/qtfs_server/qtfs-server.c
index 7bedb15ea1a41d97438504c792a8130b6e4dd040..97b79f4b29f36cfb69892879fc3de6c88c24e5df 100644
--- a/qtfs/qtfs_server/qtfs-server.c
+++ b/qtfs/qtfs_server/qtfs-server.c
@@ -42,8 +42,10 @@ struct qtfs_server_epoll_s qtfs_epoll = {
 	.events = NULL,
 	.kevents = NULL,
 };
+rwlock_t qtfs_epoll_rwlock;
 
 struct whitelist* g_whitelist[QTFS_WHITELIST_MAX];
+rwlock_t g_whitelist_rwlock;
 
 long qtfs_server_epoll_thread(struct qtfs_conn_var_s *pvar)
 {
@@ -186,9 +188,7 @@ long qtfs_server_misc_ioctl(struct file *file, unsigned int cmd, unsigned long a
 				return QTERROR;
 			}
 			for (i = 0; i < init_userp.thread_nums; i++)
-				qtfs_info("userp set idx:%d size:%lu user pointer:%lx %lx", i,
-					qtfs_userps[i].size, (unsigned long)qtfs_userps[i].userp,
-					(unsigned long)qtfs_userps[i].userp2);
+				qtfs_info("userp set idx:%d size:%lu", i, qtfs_userps[i].size);
 			break;
 		case QTFS_IOCTL_THREAD_RUN:
 			pvar = qtfs_conn_get_param();
@@ -203,6 +203,7 @@ long qtfs_server_misc_ioctl(struct file *file, unsigned int cmd, unsigned long a
 			qtfs_conn_put_param(pvar);
 			break;
 		case QTFS_IOCTL_EPFDSET:
+            write_lock(&qtfs_epoll_rwlock);
 			if (qtfs_epoll.kevents != NULL) {
 				kfree(qtfs_epoll.kevents);
 				qtfs_epoll.kevents = NULL;
@@ -210,11 +211,13 @@ long qtfs_server_misc_ioctl(struct file *file, unsigned int cmd, unsigned long a
 			if (copy_from_user(&qtfs_epoll, (void __user *)arg, sizeof(struct qtfs_server_epoll_s))) {
 				qtfs_err("copy epoll struct from arg failed.");
 				ret = QTERROR;
+                write_unlock(&qtfs_epoll_rwlock);
 				break;
 			}
 			if (qtfs_epoll.event_nums > QTFS_MAX_EPEVENTS_NUM) {
 				qtfs_err("epoll arg set failed, event nums:%d too big", qtfs_epoll.event_nums);
 				ret = QTERROR;
+                write_unlock(&qtfs_epoll_rwlock);
 				break;
 			}
 			qtfs_info("epoll arg set, epfd:%d event nums:%d events.",
@@ -224,8 +227,10 @@ long qtfs_server_misc_ioctl(struct file *file, unsigned int cmd, unsigned long a
 			if (qtfs_epoll.kevents == NULL) {
 				qtfs_err("epoll kernel events kmalloc failed.");
 				ret = QTERROR;
+                write_unlock(&qtfs_epoll_rwlock);
 				break;
 			}
+            write_unlock(&qtfs_epoll_rwlock);
 			break;
 		case QTFS_IOCTL_EPOLL_THREAD_INIT:
 			ret = qtfs_server_epoll_init();
@@ -236,7 +241,9 @@ long qtfs_server_misc_ioctl(struct file *file, unsigned int cmd, unsigned long a
 				ret = QTERROR;
 				break;
 			}
+            write_lock(&qtfs_epoll_rwlock);
 			ret = qtfs_server_epoll_thread(qtfs_epoll_var);
+            write_unlock(&qtfs_epoll_rwlock);
 			if (ret == QTEXIT) {
 				qtfs_info("qtfs epoll thread exit.");
 				qtfs_epoll_cut_conn(qtfs_epoll_var);
@@ -275,13 +282,17 @@ long qtfs_server_misc_ioctl(struct file *file, unsigned int cmd, unsigned long a
 				kfree(tmp);
 				return QTERROR;
 			}
+            write_lock(&g_whitelist_rwlock);
 			if (g_whitelist[tmp->type] != NULL) {
 				kfree(g_whitelist[tmp->type]);
 			}
 			g_whitelist[tmp->type] = tmp;
+            write_unlock(&g_whitelist_rwlock);
+            read_lock(&g_whitelist_rwlock)
 			for (i = 0; i < g_whitelist[tmp->type]->len; i++) {
-				qtfs_err("init %d list:%d %s", tmp->type, i, g_whitelist[tmp->type]->wl[i].path);
+				qtfs_info("init %d list:%d %s", tmp->type, i, g_whitelist[tmp->type]->wl[i].path);
 			}
+            read_unlock(&g_whitelist_rwlock)
 			break;
 		case QTFS_IOCTL_ALLINFO:
 		case QTFS_IOCTL_CLEARALL:
@@ -306,9 +317,15 @@ static int __init qtfs_server_init(void)
 	qtfs_log_init(qtfs_log_level, sizeof(qtfs_log_level));
 	if (qtfs_kallsyms_hack_init() != 0)
 		return -1;
+    rwlock_init(&g_whitelist_rwlock);
+    rwlock_init(&qtfs_epoll_rwlock);
+
+    write_lock(&g_whitelist_rwlock);    
 	for (i = 0; i < QTFS_WHITELIST_MAX; i++) {
 		g_whitelist[i] = NULL;
 	}
+    write_unlock(&g_whitelist_rwlock);
+
 	qtfs_diag_info = (struct qtinfo *)kmalloc(sizeof(struct qtinfo), GFP_KERNEL);
 	if (qtfs_diag_info == NULL) {
 		qtfs_err("kmalloc qtfs diag info failed.");
@@ -370,12 +387,16 @@ static void __exit qtfs_server_exit(void)
 		kfree(qtfs_userps);
 		qtfs_userps = NULL;
 	}
+
+    write_lock(&g_whitelist_rwlock);
 	for (i = 0; i < QTFS_WHITELIST_MAX; i++) {
 		if (g_whitelist[i] != NULL) {
 			kfree(g_whitelist[i]);
 		}
 	}
-	qtfs_misc_destroy();
+    write_unlock(&g_whitelist_rwlock);
+	
+    qtfs_misc_destroy();
 	qtfs_uds_remote_exit();
 	qtfs_syscall_replace_stop();
 	qtfs_info("qtfs server exit done.\n");
@@ -392,5 +413,4 @@ module_param_string(qtfs_conn_type, qtfs_conn_type, sizeof(qtfs_conn_type), 0600
 module_init(qtfs_server_init);
 module_exit(qtfs_server_exit);
 MODULE_AUTHOR("liqiang64@huawei.com");
-MODULE_LICENSE("GPL");
-
+MODULE_LICENSE("GPL");
\ No newline at end of file