| /* |
| * |
| * Copyright (C) 2011 Novell Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| */ |
| |
| struct ovl_entry; |
| |
| enum ovl_path_type { |
| OVL_PATH_UPPER, |
| OVL_PATH_MERGE, |
| OVL_PATH_LOWER, |
| }; |
| |
| extern const char *ovl_opaque_xattr; |
| extern const char *ovl_whiteout_xattr; |
| extern const struct dentry_operations ovl_dentry_operations; |
| |
| enum ovl_path_type ovl_path_type(struct dentry *dentry); |
| u64 ovl_dentry_version_get(struct dentry *dentry); |
| void ovl_dentry_version_inc(struct dentry *dentry); |
| void ovl_path_upper(struct dentry *dentry, struct path *path); |
| void ovl_path_lower(struct dentry *dentry, struct path *path); |
| enum ovl_path_type ovl_path_real(struct dentry *dentry, struct path *path); |
| struct dentry *ovl_dentry_upper(struct dentry *dentry); |
| struct dentry *ovl_dentry_lower(struct dentry *dentry); |
| struct dentry *ovl_dentry_real(struct dentry *dentry); |
| struct dentry *ovl_entry_real(struct ovl_entry *oe, bool *is_upper); |
| bool ovl_dentry_is_opaque(struct dentry *dentry); |
| void ovl_dentry_set_opaque(struct dentry *dentry, bool opaque); |
| bool ovl_is_whiteout(struct dentry *dentry); |
| void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry); |
| struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, |
| struct nameidata *nd); |
| struct file *ovl_path_open(struct path *path, int flags); |
| |
| struct dentry *ovl_upper_create(struct dentry *upperdir, struct dentry *dentry, |
| struct kstat *stat, const char *link); |
| |
| /* readdir.c */ |
| extern const struct file_operations ovl_dir_operations; |
| int ovl_check_empty_and_clear(struct dentry *dentry, enum ovl_path_type type); |
| |
| /* inode.c */ |
| int ovl_setattr(struct dentry *dentry, struct iattr *attr); |
| int ovl_permission(struct inode *inode, int mask); |
| int ovl_setxattr(struct dentry *dentry, const char *name, |
| const void *value, size_t size, int flags); |
| ssize_t ovl_getxattr(struct dentry *dentry, const char *name, |
| void *value, size_t size); |
| ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size); |
| int ovl_removexattr(struct dentry *dentry, const char *name); |
| |
| struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, |
| struct ovl_entry *oe); |
| /* dir.c */ |
| extern const struct inode_operations ovl_dir_inode_operations; |
| |
| /* copy_up.c */ |
| int ovl_copy_up(struct dentry *dentry); |
| int ovl_copy_up_truncate(struct dentry *dentry, loff_t size); |