diff --git a/0002-change-default-devsl-from-0-to-4.patch b/0002-change-default-devsl-from-0-to-4.patch
new file mode 100644
index 0000000000000000000000000000000000000000..6f48b78f4bfd6c8eb4edb1b0f733d9c5b9c808f3
--- /dev/null
+++ b/0002-change-default-devsl-from-0-to-4.patch
@@ -0,0 +1,42 @@
+From d37115e961f66357473e232a9591a6c5a803f9a6 Mon Sep 17 00:00:00 2001
+From: heppen <hepeng68@huawei.com>
+Date: Sat, 24 Jun 2023 18:09:33 +0800
+Subject: [PATCH] change default devsl from 0 to 4
+
+---
+ .../distributedfiledaemon/src/network/kernel_talker.cpp     | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/services/distributedfiledaemon/src/network/kernel_talker.cpp b/services/distributedfiledaemon/src/network/kernel_talker.cpp
+index bb53d50..8ee8dbb 100644
+--- a/services/distributedfiledaemon/src/network/kernel_talker.cpp
++++ b/services/distributedfiledaemon/src/network/kernel_talker.cpp
+@@ -75,15 +75,13 @@ void KernelTalker::SinkSessionTokernel(shared_ptr<BaseSession> session)
+     int socketFd = session->GetHandle();
+     auto masterkey = session->GetKey();
+     auto cid = session->GetCid();
+-    LOGD("sink session to kernel success, cid:%{public}s, socketFd:%{public}d, key[0]:%{public}x", cid.c_str(),
+-         socketFd, *(uint32_t *)masterkey.data());
+ 
+     uint8_t status = (session->IsFromServer() ? SOCKET_STAT_ACCEPT : SOCKET_STAT_OPEN);
+ 
+     UpdateSocketParam cmd = {
+         .cmd = CMD_UPDATE_SOCKET,
+         .newfd = socketFd,
+-        .devsl = 0,
++        .devsl = 4,
+         .status = status,
+     };
+     if (memcpy_s(cmd.masterKey, KEY_MAX_LEN, masterkey.data(), KEY_MAX_LEN) != EOK) {
+@@ -94,6 +92,8 @@ void KernelTalker::SinkSessionTokernel(shared_ptr<BaseSession> session)
+         return;
+     }
+     SetCmd(cmd);
++    LOGD("sink session to kernel success, cid:%{public}s, socketFd:%{public}d, key[0]:%{public}x, devsl:%{public}d",
++         cid.c_str(), socketFd, *(uint32_t *)masterkey.data(), cmd.devsl);
+ 
+     // DevslDispatcher::DevslGetRegister(cid, shared_from_this());
+ }
+-- 
+2.33.0
+
diff --git a/dfs_service.spec b/dfs_service.spec
index abdaeb7648d43a0ebfb9b3d906a9665ab174d49b..5def46214223251e176689514bef1e6b2ed3d420 100644
--- a/dfs_service.spec
+++ b/dfs_service.spec
@@ -5,12 +5,13 @@
 
 Name: dfs_service
 Version: 1.0.0
-Release: 1
+Release: 2
 Summary: The distributed file service.
 License: Apache License 2.0
 Url: https://gitee.com/openharmony/filemanagement_dfs_service
 Source0: https://gitee.com/openharmony/filemanagement_dfs_service/repository/archive/%{openHarmony_source_release}.tar.gz #/filemanagement_dfs_service-%{openHarmony_source_release}.tar.gz
 Patch0: 0001-cut-access_token-common_event-ability.patch
+Patch1: 0002-change-default-devsl-from-0-to-4.patch
 
 BuildRequires: distributed-build, libboundscheck, libatomic, distributed-utils
 Requires: libboundscheck, libatomic, distributed-utils
@@ -33,6 +34,7 @@ cp -r %{_builddir}/build/openeuler/compiler_gn/* %{_builddir}/
 
 %setup -q -T -a 0 -c -n %{dfs_service_dir}
 %patch0 -p1 -d %{dfs_service_dir}/dfs_service
+%patch1 -p1 -d %{dfs_service_dir}/dfs_service
 
 
 %build
@@ -49,13 +51,19 @@ rm -rf %{_builddir}/out
 
 %install
 install -d %{buildroot}/%{_libdir}
+install -d %{buildroot}/system/lib64
 
 # prepare so
 install -m 0755 %{_builddir}/out/openeuler/packages/phone/system/lib64/libdistributedfile*.so %{buildroot}/%{_libdir}
+install -m 0755 %{_builddir}/out/openeuler/packages/phone/system/lib64/libdistributedfile*.so %{buildroot}/system/lib64
 
 %files
 %{_libdir}/*.so
+/system/lib64/*.so
 
 %changelog
-* Sun Jun 18 2023 hepeng <hepeng68@huawei.com> - 1.0.0-1
+* Sat Jun 24 2023 Peng He <hepeng68@huawei.com> - 1.0.0-2
+- Change default devsl from 0 to 4.
+
+* Sun Jun 18 2023 Peng He <hepeng68@huawei.com> - 1.0.0-1
 - Cut access_token, common_event, ability.