feat: add sync() to vfs

新增sync方法，该方法每次调用，会遍历系统内所有的mount点，调用各个文件系统注册
的sync方法，完成对所有已挂载文件系统的sync操作。

close #I480HV

Signed-off-by: Guangyao Ma <guangyao.ma@outlook.com>
Change-Id: I57ced9c3f7685a448defd17ae56c842796b5668f

fs/fat/os_adapt/fatfs.c

@@ -34,6 +34,7 @@
 #include "ff.h"
 #include "disk_pri.h"
 #include "diskio.h"
+#include "fs/file.h"
 #include "fs/fs.h"
 #include "fs/dirent_fs.h"
 #include "fs/mount.h"
@@ -1297,6 +1298,29 @@ int fatfs_umount(struct Mount *mnt, struct Vnode **blkdriver)
     return 0;
 }
 
+int fatfs_sync_adapt(struct Mount *mnt)
+{
+    (void)mnt;
+    int ret = 0;
+#ifdef LOSCFG_FS_FAT_CACHE
+    struct Vnode *dev = NULL;
+    los_part *part = NULL;
+
+    if (mnt == NULL) {
+        return -EINVAL;
+    }
+
+    dev = mnt->vnodeDev;
+    part = los_part_find(dev);
+    if (part == NULL) {
+        return -EINVAL;
+    }
+
+    ret = OsSdSync(part->disk_id);
+#endif
+    return ret;
+}
+
 int fatfs_statfs(struct Mount *mnt, struct statfs *info)
 {
     FATFS *fs = (FATFS *)mnt->data;
@@ -2207,6 +2231,7 @@ struct MountOps fatfs_mops = {
     .Mount = fatfs_mount,
     .Unmount = fatfs_umount,
     .Statfs = fatfs_statfs,
+    .Sync = fatfs_sync_adapt,
 };
 
 struct file_operations_vfs fatfs_fops = {

fs/include/fs/mount.h

@@ -61,6 +61,7 @@ struct MountOps {
     int (*Mount)(struct Mount *mount, struct Vnode *vnode, const void *data);
     int (*Unmount)(struct Mount *mount, struct Vnode **blkdriver);
     int (*Statfs)(struct Mount *mount, struct statfs *sbp);
+    int (*Sync)(struct Mount *mount);
 };
 
 typedef int (*foreach_mountpoint_t)(const char *devpoint,

fs/vfs/BUILD.gn

@@ -71,6 +71,7 @@ kernel_module(module_name) {
     "$LITEOSTHIRDPARTY/NuttX/fs/inode/fs_files.c",
     "$LITEOSTHIRDPARTY/NuttX/fs/mount/fs_foreachmountpoint.c",
     "$LITEOSTHIRDPARTY/NuttX/fs/mount/fs_mount.c",
+    "$LITEOSTHIRDPARTY/NuttX/fs/mount/fs_sync.c",
     "$LITEOSTHIRDPARTY/NuttX/fs/mount/fs_umount.c",
     "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_close.c",
     "$LITEOSTHIRDPARTY/NuttX/fs/vfs/fs_dup.c",

fs/vfs/Makefile

@@ -80,6 +80,7 @@ $(LITEOSTHIRDPARTY)/NuttX/fs/dirent/fs_telldir.c \
 \
 $(LITEOSTHIRDPARTY)/NuttX/fs/mount/fs_mount.c \
 $(LITEOSTHIRDPARTY)/NuttX/fs/mount/fs_umount.c \
+$(LITEOSTHIRDPARTY)/NuttX/fs/mount/fs_sync.c \
 \
 $(LITEOSTHIRDPARTY)/NuttX/fs/driver/fs_blockproxy.c \
 $(LITEOSTHIRDPARTY)/NuttX/fs/mount/fs_foreachmountpoint.c \

fs/vfs/bcache/src/bcache.c

@@ -1087,8 +1087,6 @@ OsBcache *BlockCacheInit(struct Vnode *devNode, UINT32 sectorSize, UINT32 sector
         return NULL;
     }
 
-    set_sd_sync_fn(OsSdSync);
-
     bcacheMem = (UINT8 *)zalloc(memSize);
     if (bcacheMem == NULL) {
         PRINT_ERR("bcache_init : malloc %u Bytes failed!\n", memSize);

fs/vfs/operation/vfs_other.c

@@ -444,28 +444,6 @@ char *rindex(const char *s, int c)
     return (char *)strrchr(s, c);
 }
 
-int (*sd_sync_fn)(int) = NULL;
-
-int (*nand_sync_fn)(void) = NULL;
-
-void set_sd_sync_fn(int (*sync_fn)(int))
-{
-    sd_sync_fn = sync_fn;
-}
-
-void sync(void)
-{
-#ifdef LOSCFG_FS_FAT_CACHE
-    if (sd_sync_fn != NULL)
-      {
-        (void)sd_sync_fn(0);
-        (void)sd_sync_fn(1);
-        return;
-      }
-#endif
-    PRINT_ERR("Unsupport syscall %s\n", __FUNCTION__);
-}
-
 static char *ls_get_fullpath(const char *path, struct dirent *pdirent)
 {
     char *fullpath = NULL;

fs/vfs/vfs_cmd/vfs_shellcmd.c

@@ -1569,13 +1569,11 @@ int osShellCmdChgrp(int argc, const char **argv)
 SHELLCMD_ENTRY(lsfd_shellcmd, CMD_TYPE_EX, "lsfd", XARGS, (CmdCallBackFunc)osShellCmdLsfd);
 SHELLCMD_ENTRY(statfs_shellcmd, CMD_TYPE_EX, "statfs", XARGS, (CmdCallBackFunc)osShellCmdStatfs);
 SHELLCMD_ENTRY(touch_shellcmd, CMD_TYPE_EX, "touch", XARGS, (CmdCallBackFunc)osShellCmdTouch);
-#if (defined(LOSCFG_FS_FAT))
-SHELLCMD_ENTRY(sync_shellcmd, CMD_TYPE_EX, "sync", XARGS, (CmdCallBackFunc)osShellCmdSync);
-#endif
 #ifdef LOSCFG_KERNEL_SYSCALL
 SHELLCMD_ENTRY(su_shellcmd, CMD_TYPE_EX, "su", XARGS, (CmdCallBackFunc)osShellCmdSu);
 #endif
 #endif
+SHELLCMD_ENTRY(sync_shellcmd, CMD_TYPE_EX, "sync", XARGS, (CmdCallBackFunc)osShellCmdSync);
 SHELLCMD_ENTRY(ls_shellcmd, CMD_TYPE_EX, "ls", XARGS, (CmdCallBackFunc)osShellCmdLs);
 SHELLCMD_ENTRY(pwd_shellcmd, CMD_TYPE_EX, "pwd", XARGS, (CmdCallBackFunc)osShellCmdPwd);
 SHELLCMD_ENTRY(cd_shellcmd, CMD_TYPE_EX, "cd", XARGS, (CmdCallBackFunc)osShellCmdCd);