1 /*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 * conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 * of conditions and the following disclaimer in the documentation and/or other materials
13 * provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 * to endorse or promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include "disk_pri.h"
33 #include "fcntl.h"
34 #include "fs/file.h"
35 #include "fs/fs_operation.h"
36 #include "linux/spinlock.h"
37 #include "los_init.h"
38 #include "los_printf.h"
39 #include "fs/mount.h"
40 #include "path_cache.h"
41 #include "sys/statfs.h"
42 #include "unistd.h"
43 #include "vnode.h"
44
los_vfs_init(void)45 void los_vfs_init(void)
46 {
47 uint retval;
48 static bool g_vfs_init = false;
49 if (g_vfs_init) {
50 return;
51 }
52
53 #ifdef LOSCFG_FS_FAT_DISK
54 spin_lock_init(&g_diskSpinlock);
55 spin_lock_init(&g_diskFatBlockSpinlock);
56 #endif
57 files_initialize();
58 files_initlist(&tg_filelist);
59
60 retval = VnodesInit();
61 if (retval != LOS_OK) {
62 PRINT_ERR("los_vfs_init VnodeInit failed error %d\n", retval);
63 return;
64 }
65
66 retval = PathCacheInit();
67 if (retval != LOS_OK) {
68 PRINT_ERR("los_vfs_init PathCacheInit failed error %d\n", retval);
69 return;
70 }
71 retval = VnodeHashInit();
72 if (retval != LOS_OK) {
73 PRINT_ERR("los_vfs_init VnodeHashInit failed error %d\n", retval);
74 return;
75 }
76
77 retval = VnodeDevInit();
78 if (retval != LOS_OK) {
79 PRINT_ERR("los_vfs_init VnodeDevInit failed error %d\n", retval);
80 return;
81 }
82
83 g_vfs_init = true;
84 }
85
86 LOS_MODULE_INIT(los_vfs_init, LOS_INIT_LEVEL_KMOD_BASIC);
87