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Searched refs:dentry (Results 1 – 16 of 16) sorted by relevance

/DragonOS-0.1.2/kernel/src/filesystem/VFS/
Ddcache.c13 int vfs_dentry_put(struct vfs_dir_entry_t *dentry) in vfs_dentry_put() argument
18 const struct vfs_dir_entry_t *start_dentry = dentry; in vfs_dentry_put()
21 if (unlikely(dentry->lockref.count > 1)) in vfs_dentry_put()
28 if (D_ISDIR(dentry)) in vfs_dentry_put()
40 in_value = (uint64_t)dentry; in vfs_dentry_put()
42 list_del(&dentry->child_node_list); // 从父dentry中删除 in vfs_dentry_put()
47 kfifo_out(&fifo, &dentry, sizeof(uint64_t)); in vfs_dentry_put()
48 BUG_ON(dentry == NULL); in vfs_dentry_put()
49 struct List *list = &dentry->subdirs_list; in vfs_dentry_put()
60 } while (list_next(list) != (&dentry->subdirs_list)); in vfs_dentry_put()
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Dmount.h11 struct vfs_dir_entry_t *dentry; // 被挂载前,当前目录项的dentry member
37 int do_umount(struct vfs_dir_entry_t *dentry);
47 static inline void dont_mount(struct vfs_dir_entry_t *dentry) in dont_mount() argument
50 dentry->d_flags |= VFS_DF_CANNOT_MOUNT; in dont_mount()
53 static inline void detach_mounts(struct vfs_dir_entry_t *dentry) in detach_mounts() argument
55 if (!D_MOUNTED(dentry)) in detach_mounts()
68 struct mountpoint *mount_find_mnt_list_by_parent(struct vfs_dir_entry_t *dentry);
DVFS.c113 static struct vfs_dir_entry_t *vfs_search_dentry_list(struct vfs_dir_entry_t *dentry, const char *n… in vfs_search_dentry_list() argument
115 if (list_empty(&dentry->subdirs_list)) in vfs_search_dentry_list()
118 struct List *ptr = &dentry->subdirs_list; in vfs_search_dentry_list()
126 } while (list_next(ptr) != (&dentry->subdirs_list)); in vfs_search_dentry_list()
149 struct vfs_dir_entry_t *dentry = NULL; in vfs_path_walk() local
164 dentry = vfs_search_dentry_list(parent, tmpname); in vfs_path_walk()
170 if (dentry == NULL) in vfs_path_walk()
172 dentry = vfs_alloc_dentry(tmp_path_len + 1); in vfs_path_walk()
174 memcpy(dentry->name, (void *)tmp_path, tmp_path_len); in vfs_path_walk()
175 dentry->name[tmp_path_len] = '\0'; in vfs_path_walk()
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Dinternal.h16 int vfs_may_delete(struct vfs_dir_entry_t *dentry, bool isdir);
18 #define D_ISDIR(dentry) ((dentry)->dir_inode->attribute & VFS_IF_DIR) argument
28 static inline bool is_local_mountpoint(struct vfs_dir_entry_t *dentry) in is_local_mountpoint() argument
30 if (D_MOUNTED(dentry)) in is_local_mountpoint()
Dmount.c30 mp->dentry = old_dentry; in do_mount()
58 int do_umount(struct vfs_dir_entry_t *dentry) in do_umount() argument
71 struct mountpoint *mount_find_mnt_list_by_parent(struct vfs_dir_entry_t *dentry) in mount_find_mnt_list_by_parent() argument
82 if (dentry == tmp->parent_dentry) in mount_find_mnt_list_by_parent()
DVFS.h167 long (*unlink)(struct vfs_index_node_t *inode, struct vfs_dir_entry_t *dentry);
289 int vfs_dentry_put(struct vfs_dir_entry_t *dentry);
291 … user_namespace *mnt_userns, struct vfs_index_node_t *parent_inode, struct vfs_dir_entry_t *dentry,
/DragonOS-0.1.2/kernel/src/filesystem/devfs/
Dinternal.h72 static inline void __devfs_fill_inode(struct vfs_dir_entry_t *dentry, struct vfs_index_node_t *inod… in __devfs_fill_inode() argument
74 dentry->dir_inode = inode; in __devfs_fill_inode()
75 dentry->dir_inode->file_ops = private_inode_data->f_ops; in __devfs_fill_inode()
76 dentry->dir_inode->inode_ops = &devfs_inode_ops; in __devfs_fill_inode()
78 dentry->dir_inode->private_inode_info = private_inode_data; in __devfs_fill_inode()
79 dentry->dir_inode->sb = &devfs_sb; in __devfs_fill_inode()
80 dentry->dir_inode->attribute = inode_attr; in __devfs_fill_inode()
82 private_inode_data->inode = dentry->dir_inode; in __devfs_fill_inode()
91 static inline void __devfs_fill_dentry(struct vfs_dir_entry_t *dentry, const char *name) in __devfs_fill_dentry() argument
93 strcpy(dentry->name, name); in __devfs_fill_dentry()
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Dchardev.c59 struct vfs_dir_entry_t *dentry = vfs_alloc_dentry(namelen + 1); in __devfs_chardev_register() local
60 __devfs_fill_dentry(dentry, devname); in __devfs_chardev_register()
61 __devfs_fill_inode(dentry, vfs_alloc_inode(), VFS_IF_DEVICE, private_info); in __devfs_chardev_register()
64 __devfs_dentry_bind_parent(chardev_folder_dentry, dentry); in __devfs_chardev_register()
68 *target_dentry = dentry; in __devfs_chardev_register()
Ddevfs.c87 struct vfs_dir_entry_t *dentry = file_ptr->dEntry; in devfs_readdir() local
88 struct List *list = &dentry->subdirs_list; in devfs_readdir()
93 if (list == &dentry->subdirs_list) // 找完了 in devfs_readdir()
234 struct vfs_dir_entry_t *dentry = NULL; // 该指针由对应类型设备的注册函数设置 in devfs_register_device() local
239 retval = __devfs_chardev_register(private_info, &dentry); in devfs_register_device()
/DragonOS-0.1.2/kernel/src/filesystem/rootfs/
Drootfs.c14 static inline void __release_dentry(struct vfs_dir_entry_t *dentry) in __release_dentry() argument
16 kfree(dentry->name); in __release_dentry()
17 kfree(dentry); in __release_dentry()
54 struct vfs_dir_entry_t *dentry = file_ptr->dEntry; in rootfs_readdir() local
55 struct List *list = &dentry->subdirs_list; in rootfs_readdir()
60 if (list == &dentry->subdirs_list) // 找完了 in rootfs_readdir()
127 struct vfs_dir_entry_t *dentry = vfs_alloc_dentry(strlen(name) + 1); in rootfs_add_dir() local
128 strcpy(dentry->name, name); in rootfs_add_dir()
129 dentry->name_length = strlen(name); in rootfs_add_dir()
130 dentry->parent = rootfs_sb.root; in rootfs_add_dir()
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/DragonOS-0.1.2/docs/kernel/filesystem/vfs/
Doverview.md9 ### dentry对象
11   dentry的全称为directory entry，是VFS中对于目录项的一种抽象数据结构。当读取具体文件系统时，将会由创建dentry对象。dentry对象中包含了指向in…
13   dentry对象为真实文件系统上的目录结构建立了缓存，一旦内存中存在对应路径的dentry对象，我们就能直接获取其中的信息，而不需要进行费时的磁盘操作。请注意，dentry只…
17 …index node，即索引节点。一般来说，每个dentry都应当包含指向其inode的指针。inode是VFS提供的对文件对象的抽象。inode中的信息是从具体文件系统中读取而来，也可以被刷回具…
23   当一个进程试图通过VFS打开某个文件时，我们需要为这个进程创建文件描述符对象。每个文件对象都会绑定文件的dentry和文件操作方法结构体，还有文件对象的私有信息。
100   该具体文件系统的根目录的dentry
/DragonOS-0.1.2/docs/kernel/filesystem/rootfs/
Dindex.md5   rootfs的初始化将与VFS一同初始化。rootfs将为系统的各项文件系统的挂载创建dentry，使得其他的文件系统如`devfs`等，能在磁盘文件系统被挂载之前被正确的初…
/DragonOS-0.1.2/kernel/src/filesystem/fat32/
Dfat32.c1121 int64_t fat32_unlink(struct vfs_index_node_t *dir, struct vfs_dir_entry_t *dentry) in fat32_unlink() argument
1125 struct vfs_index_node_t *inode_to_remove = dentry->dir_inode; in fat32_unlink()
1130 retval = vfat_find(dir, dentry->name, &sinfo); in fat32_unlink()
1139 retval = fat32_detach_inode(dentry->dir_inode); in fat32_unlink()
1200 struct fat32_Directory_t *dentry = NULL; in fat32_readdir() local
1204 dentry = (struct fat32_Directory_t *)(buf + file_ptr->position % fsbi->bytes_per_clus); in fat32_readdir()
1209 i += 32, file_ptr->position += 32, ++dentry) in fat32_readdir()
1212 if (dentry->DIR_Attr == ATTR_LONG_NAME) in fat32_readdir()
1215 … if (dentry->DIR_Name[0] == 0xe5 || dentry->DIR_Name[0] == 0x00 || dentry->DIR_Name[0] == 0x05) in fat32_readdir()
1220 long_dentry = (struct fat32_LongDirectory_t *)(dentry - 1); in fat32_readdir()
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/DragonOS-0.1.2/kernel/src/filesystem/procfs/
Dprocfs.c274 struct vfs_dir_entry_t *dentry = file_ptr->dEntry; in procfs_readdir() local
275 struct List *list = &dentry->subdirs_list; in procfs_readdir()
280 if (list == &dentry->subdirs_list) // 找完了 in procfs_readdir()
481 struct vfs_dir_entry_t *dentry = vfs_path_walk(path, 0); in proc_create_file() local
489 dentry->dir_inode->private_inode_info = (void *)finode; in proc_create_file()
/DragonOS-0.1.2/kernel/src/process/
Dprocess.c134 struct vfs_dir_entry_t *dentry = NULL; in process_open_exec_file() local
137 dentry = vfs_path_walk(path, 0); in process_open_exec_file()
139 if (dentry == NULL) in process_open_exec_file()
142 if (dentry->dir_inode->attribute == VFS_IF_DIR) in process_open_exec_file()
151 filp->dEntry = dentry; in process_open_exec_file()
153 filp->file_ops = dentry->dir_inode->file_ops; in process_open_exec_file()
/DragonOS-0.1.2/kernel/src/syscall/
Dsyscall.c405 struct vfs_dir_entry_t *dentry = vfs_path_walk(path, 0); in sys_chdir() local
409 if (dentry == NULL) in sys_chdir()
413 if (dentry->dir_inode->attribute != VFS_IF_DIR) in sys_chdir()