55 static void release_system_zone(struct ext4_system_blocks *system_blks)  in release_system_zone()  argument
60 				&system_blks->root, node)  in release_system_zone()
69 static int add_system_zone(struct ext4_system_blocks *system_blks,  in add_system_zone()  argument
74 	struct rb_node **n = &system_blks->root.rb_node, *node;  in add_system_zone()
98 	rb_insert_color(new_node, &system_blks->root);  in add_system_zone()
107 			rb_erase(node, &system_blks->root);  in add_system_zone()
118 			rb_erase(node, &system_blks->root);  in add_system_zone()
129 	struct ext4_system_blocks *system_blks;  in debug_print_tree()  local
134 	system_blks = rcu_dereference(sbi->s_system_blks);  in debug_print_tree()
135 	node = rb_first(&system_blks->root);  in debug_print_tree()
148 				       struct ext4_system_blocks *system_blks,  in ext4_protect_reserved_inode()  argument
176 			err = add_system_zone(system_blks, map.m_pblk, n, ino);  in ext4_protect_reserved_inode()
195 	struct ext4_system_blocks *system_blks;  in ext4_destroy_system_zone()  local
197 	system_blks = container_of(rcu, struct ext4_system_blocks, rcu);  in ext4_destroy_system_zone()
198 	release_system_zone(system_blks);  in ext4_destroy_system_zone()
199 	kfree(system_blks);  in ext4_destroy_system_zone()
215 	struct ext4_system_blocks *system_blks;  in ext4_setup_system_zone()  local
221 	system_blks = kzalloc(sizeof(*system_blks), GFP_KERNEL);  in ext4_setup_system_zone()
222 	if (!system_blks)  in ext4_setup_system_zone()
229 			ret = add_system_zone(system_blks,  in ext4_setup_system_zone()
236 		ret = add_system_zone(system_blks,  in ext4_setup_system_zone()
240 		ret = add_system_zone(system_blks,  in ext4_setup_system_zone()
244 		ret = add_system_zone(system_blks,  in ext4_setup_system_zone()
251 		ret = ext4_protect_reserved_inode(sb, system_blks,  in ext4_setup_system_zone()
262 	rcu_assign_pointer(sbi->s_system_blks, system_blks);  in ext4_setup_system_zone()
268 	release_system_zone(system_blks);  in ext4_setup_system_zone()
269 	kfree(system_blks);  in ext4_setup_system_zone()
285 	struct ext4_system_blocks *system_blks;  in ext4_release_system_zone()  local
287 	system_blks = rcu_dereference_protected(EXT4_SB(sb)->s_system_blks,  in ext4_release_system_zone()
291 	if (system_blks)  in ext4_release_system_zone()
292 		call_rcu(&system_blks->rcu, ext4_destroy_system_zone);  in ext4_release_system_zone()
299 	struct ext4_system_blocks *system_blks;  in ext4_sb_block_valid()  local
315 	system_blks = rcu_dereference(sbi->s_system_blks);  in ext4_sb_block_valid()
316 	if (system_blks == NULL)  in ext4_sb_block_valid()
319 	n = system_blks->root.rb_node;  in ext4_sb_block_valid()