15 static int ovl_copy_up_truncate(struct dentry *dentry)  in ovl_copy_up_truncate()  argument
18 	struct dentry *parent;  in ovl_copy_up_truncate()
22 	parent = dget_parent(dentry);  in ovl_copy_up_truncate()
27 	ovl_path_lower(dentry, &lowerpath);  in ovl_copy_up_truncate()
33 	err = ovl_copy_up_one(parent, dentry, &lowerpath, &stat);  in ovl_copy_up_truncate()
40 int ovl_setattr(struct dentry *dentry, struct iattr *attr)  in ovl_setattr()  argument
43 	struct dentry *upperdentry;  in ovl_setattr()
54 	err = inode_change_ok(dentry->d_inode, attr);  in ovl_setattr()
58 	err = ovl_want_write(dentry);  in ovl_setattr()
62 	err = ovl_copy_up(dentry);  in ovl_setattr()
64 		upperdentry = ovl_dentry_upper(dentry);  in ovl_setattr()
69 			ovl_copyattr(upperdentry->d_inode, dentry->d_inode);  in ovl_setattr()
72 	ovl_drop_write(dentry);  in ovl_setattr()
77 static int ovl_getattr(struct vfsmount *mnt, struct dentry *dentry,  in ovl_getattr()  argument
82 	ovl_path_real(dentry, &realpath);  in ovl_getattr()
89 	struct dentry *alias = NULL;  in ovl_permission()
91 	struct dentry *realdentry;  in ovl_permission()
151 	struct dentry *realdentry;
155 static const char *ovl_follow_link(struct dentry *dentry, void **cookie)  in ovl_follow_link()  argument
157 	struct dentry *realdentry;  in ovl_follow_link()
162 	realdentry = ovl_dentry_real(dentry);  in ovl_follow_link()
202 static int ovl_readlink(struct dentry *dentry, char __user *buf, int bufsiz)  in ovl_readlink()  argument
207 	ovl_path_real(dentry, &realpath);  in ovl_readlink()
208 	realinode = realpath.dentry->d_inode;  in ovl_readlink()
215 	return realinode->i_op->readlink(realpath.dentry, buf, bufsiz);  in ovl_readlink()
224 int ovl_setxattr(struct dentry *dentry, const char *name,  in ovl_setxattr()  argument
228 	struct dentry *upperdentry;  in ovl_setxattr()
230 	err = ovl_want_write(dentry);  in ovl_setxattr()
238 	err = ovl_copy_up(dentry);  in ovl_setxattr()
242 	upperdentry = ovl_dentry_upper(dentry);  in ovl_setxattr()
246 	ovl_drop_write(dentry);  in ovl_setxattr()
251 static bool ovl_need_xattr_filter(struct dentry *dentry,  in ovl_need_xattr_filter()  argument
255 		return S_ISDIR(dentry->d_inode->i_mode);  in ovl_need_xattr_filter()
260 ssize_t ovl_getxattr(struct dentry *dentry, const char *name,  in ovl_getxattr()  argument
264 	enum ovl_path_type type = ovl_path_real(dentry, &realpath);  in ovl_getxattr()
266 	if (ovl_need_xattr_filter(dentry, type) && ovl_is_private_xattr(name))  in ovl_getxattr()
269 	return vfs_getxattr(realpath.dentry, name, value, size);  in ovl_getxattr()
272 ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size)  in ovl_listxattr()  argument
275 	enum ovl_path_type type = ovl_path_real(dentry, &realpath);  in ovl_listxattr()
279 	res = vfs_listxattr(realpath.dentry, list, size);  in ovl_listxattr()
283 	if (!ovl_need_xattr_filter(dentry, type))  in ovl_listxattr()
304 int ovl_removexattr(struct dentry *dentry, const char *name)  in ovl_removexattr()  argument
308 	enum ovl_path_type type = ovl_path_real(dentry, &realpath);  in ovl_removexattr()
310 	err = ovl_want_write(dentry);  in ovl_removexattr()
315 	if (ovl_need_xattr_filter(dentry, type) && ovl_is_private_xattr(name))  in ovl_removexattr()
319 		err = vfs_getxattr(realpath.dentry, name, NULL, 0);  in ovl_removexattr()
323 		err = ovl_copy_up(dentry);  in ovl_removexattr()
327 		ovl_path_upper(dentry, &realpath);  in ovl_removexattr()
330 	err = vfs_removexattr(realpath.dentry, name);  in ovl_removexattr()
332 	ovl_drop_write(dentry);  in ovl_removexattr()
338 				  struct dentry *realdentry)  in ovl_open_need_copy_up()
352 struct inode *ovl_d_select_inode(struct dentry *dentry, unsigned file_flags)  in ovl_d_select_inode()  argument
358 	if (d_is_dir(dentry))  in ovl_d_select_inode()
359 		return d_backing_inode(dentry);  in ovl_d_select_inode()
361 	type = ovl_path_real(dentry, &realpath);  in ovl_d_select_inode()
362 	if (ovl_open_need_copy_up(file_flags, type, realpath.dentry)) {  in ovl_d_select_inode()
363 		err = ovl_want_write(dentry);  in ovl_d_select_inode()
368 			err = ovl_copy_up_truncate(dentry);  in ovl_d_select_inode()
370 			err = ovl_copy_up(dentry);  in ovl_d_select_inode()
371 		ovl_drop_write(dentry);  in ovl_d_select_inode()
375 		ovl_path_upper(dentry, &realpath);  in ovl_d_select_inode()
378 	if (realpath.dentry->d_flags & DCACHE_OP_SELECT_INODE)  in ovl_d_select_inode()
379 		return realpath.dentry->d_op->d_select_inode(realpath.dentry, file_flags);  in ovl_d_select_inode()
381 	return d_backing_inode(realpath.dentry);  in ovl_d_select_inode()