1 /*
2 * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification,
5 * are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice, this list of
8 * conditions and the following disclaimer.
9 *
10 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
11 * of conditions and the following disclaimer in the documentation and/or other materials
12 * provided with the distribution.
13 *
14 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific prior written
16 * permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
27 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
28 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 /****************************************************************************
32 * Included Files
33 ****************************************************************************/
34 #include "unistd.h"
35 #include "fs/mount.h"
36 #include "vfs_config.h"
37
38 /****************************************************************************
39 * Private Functions
40 ****************************************************************************/
41
42 /****************************************************************************
43 * Public Functions
44 ****************************************************************************/
45
46 /****************************************************************************
47 * Name: sync
48 *
49 * Description:
50 * sync() will sync data of every mount point
51 *
52 ****************************************************************************/
53
sync(void)54 void sync(void)
55 {
56 int ret;
57 struct Mount *mnt = NULL;
58 LIST_HEAD *mntList = GetMountList();
59
60 VnodeHold();
61 LOS_DL_LIST_FOR_EACH_ENTRY(mnt, mntList, struct Mount, mountList)
62 {
63 if (mnt->ops->Sync != NULL)
64 {
65 ret = mnt->ops->Sync(mnt);
66 if (ret != OK)
67 {
68 PRINT_ERR("sync failed, %s, %s\n", mnt->pathName, strerror(-ret));
69 }
70 }
71 }
72 VnodeDrop();
73 }
74