71 static struct dentry *__kernfs_fh_to_dentry(struct super_block *sb,  in __kernfs_fh_to_dentry()  argument
75 	struct kernfs_super_info *info = kernfs_info(sb);  in __kernfs_fh_to_dentry()
115 	inode = kernfs_get_inode(sb, kn);  in __kernfs_fh_to_dentry()
123 static struct dentry *kernfs_fh_to_dentry(struct super_block *sb,  in kernfs_fh_to_dentry()  argument
127 	return __kernfs_fh_to_dentry(sb, fid, fh_len, fh_type, false);  in kernfs_fh_to_dentry()
130 static struct dentry *kernfs_fh_to_parent(struct super_block *sb,  in kernfs_fh_to_parent()  argument
134 	return __kernfs_fh_to_dentry(sb, fid, fh_len, fh_type, true);  in kernfs_fh_to_parent()
158 struct kernfs_root *kernfs_root_from_sb(struct super_block *sb)  in kernfs_root_from_sb()  argument
160 	if (sb->s_op == &kernfs_sops)  in kernfs_root_from_sb()
161 		return kernfs_info(sb)->root;  in kernfs_root_from_sb()
196 				  struct super_block *sb)  in kernfs_node_dentry()  argument
201 	BUG_ON(sb->s_op != &kernfs_sops);  in kernfs_node_dentry()
203 	dentry = dget(sb->s_root);  in kernfs_node_dentry()
236 static int kernfs_fill_super(struct super_block *sb, struct kernfs_fs_context *kfc)  in kernfs_fill_super()  argument
238 	struct kernfs_super_info *info = kernfs_info(sb);  in kernfs_fill_super()
242 	info->sb = sb;  in kernfs_fill_super()
244 	sb->s_iflags |= SB_I_NOEXEC | SB_I_NODEV;  in kernfs_fill_super()
245 	sb->s_blocksize = PAGE_SIZE;  in kernfs_fill_super()
246 	sb->s_blocksize_bits = PAGE_SHIFT;  in kernfs_fill_super()
247 	sb->s_magic = kfc->magic;  in kernfs_fill_super()
248 	sb->s_op = &kernfs_sops;  in kernfs_fill_super()
249 	sb->s_xattr = kernfs_xattr_handlers;  in kernfs_fill_super()
251 		sb->s_export_op = &kernfs_export_ops;  in kernfs_fill_super()
252 	sb->s_time_gran = 1;  in kernfs_fill_super()
255 	sb->s_shrink.seeks = 0;  in kernfs_fill_super()
259 	inode = kernfs_get_inode(sb, info->root->kn);  in kernfs_fill_super()
272 	sb->s_root = root;  in kernfs_fill_super()
273 	sb->s_d_op = &kernfs_dops;  in kernfs_fill_super()
277 static int kernfs_test_super(struct super_block *sb, struct fs_context *fc)  in kernfs_test_super()  argument
279 	struct kernfs_super_info *sb_info = kernfs_info(sb);  in kernfs_test_super()
285 static int kernfs_set_super(struct super_block *sb, struct fs_context *fc)  in kernfs_set_super()  argument
290 	return set_anon_super_fc(sb, fc);  in kernfs_set_super()
299 const void *kernfs_super_ns(struct super_block *sb)  in kernfs_super_ns()  argument
301 	struct kernfs_super_info *info = kernfs_info(sb);  in kernfs_super_ns()
318 	struct super_block *sb;  in kernfs_get_tree()  local
331 	sb = sget_fc(fc, kernfs_test_super, kernfs_set_super);  in kernfs_get_tree()
332 	if (IS_ERR(sb))  in kernfs_get_tree()
333 		return PTR_ERR(sb);  in kernfs_get_tree()
335 	if (!sb->s_root) {  in kernfs_get_tree()
336 		struct kernfs_super_info *info = kernfs_info(sb);  in kernfs_get_tree()
340 		error = kernfs_fill_super(sb, kfc);  in kernfs_get_tree()
342 			deactivate_locked_super(sb);  in kernfs_get_tree()
345 		sb->s_flags |= SB_ACTIVE;  in kernfs_get_tree()
352 	fc->root = dget(sb->s_root);  in kernfs_get_tree()
371 void kernfs_kill_sb(struct super_block *sb)  in kernfs_kill_sb()  argument
373 	struct kernfs_super_info *info = kernfs_info(sb);  in kernfs_kill_sb()
383 	kill_anon_super(sb);  in kernfs_kill_sb()