354 static void zswap_entry_put(struct zswap_tree *tree,  in zswap_entry_put()  argument
361 		zswap_rb_erase(&tree->rbroot, entry);  in zswap_entry_put()
853 	struct zswap_tree *tree;  in zswap_writeback_entry()  local
869 	tree = zswap_trees[swp_type(swpentry)];  in zswap_writeback_entry()
873 	spin_lock(&tree->lock);  in zswap_writeback_entry()
874 	entry = zswap_entry_find_get(&tree->rbroot, offset);  in zswap_writeback_entry()
877 		spin_unlock(&tree->lock);  in zswap_writeback_entry()
880 	spin_unlock(&tree->lock);  in zswap_writeback_entry()
922 	spin_lock(&tree->lock);  in zswap_writeback_entry()
924 	zswap_entry_put(tree, entry);  in zswap_writeback_entry()
933 	if (entry == zswap_rb_search(&tree->rbroot, offset))  in zswap_writeback_entry()
934 		zswap_entry_put(tree, entry);  in zswap_writeback_entry()
935 	spin_unlock(&tree->lock);  in zswap_writeback_entry()
947 	spin_lock(&tree->lock);  in zswap_writeback_entry()
948 	zswap_entry_put(tree, entry);  in zswap_writeback_entry()
949 	spin_unlock(&tree->lock);  in zswap_writeback_entry()
1000 	struct zswap_tree *tree = zswap_trees[type];  in zswap_frontswap_store()  local
1016 	if (!zswap_enabled || !tree) {  in zswap_frontswap_store()
1106 	spin_lock(&tree->lock);  in zswap_frontswap_store()
1108 		ret = zswap_rb_insert(&tree->rbroot, entry, &dupentry);  in zswap_frontswap_store()
1112 			zswap_rb_erase(&tree->rbroot, dupentry);  in zswap_frontswap_store()
1113 			zswap_entry_put(tree, dupentry);  in zswap_frontswap_store()
1116 	spin_unlock(&tree->lock);  in zswap_frontswap_store()
1140 	struct zswap_tree *tree = zswap_trees[type];  in zswap_frontswap_load()  local
1148 	spin_lock(&tree->lock);  in zswap_frontswap_load()
1149 	entry = zswap_entry_find_get(&tree->rbroot, offset);  in zswap_frontswap_load()
1152 		spin_unlock(&tree->lock);  in zswap_frontswap_load()
1155 	spin_unlock(&tree->lock);  in zswap_frontswap_load()
1178 	spin_lock(&tree->lock);  in zswap_frontswap_load()
1179 	zswap_entry_put(tree, entry);  in zswap_frontswap_load()
1180 	spin_unlock(&tree->lock);  in zswap_frontswap_load()
1188 	struct zswap_tree *tree = zswap_trees[type];  in zswap_frontswap_invalidate_page()  local
1192 	spin_lock(&tree->lock);  in zswap_frontswap_invalidate_page()
1193 	entry = zswap_rb_search(&tree->rbroot, offset);  in zswap_frontswap_invalidate_page()
1196 		spin_unlock(&tree->lock);  in zswap_frontswap_invalidate_page()
1201 	zswap_rb_erase(&tree->rbroot, entry);  in zswap_frontswap_invalidate_page()
1204 	zswap_entry_put(tree, entry);  in zswap_frontswap_invalidate_page()
1206 	spin_unlock(&tree->lock);  in zswap_frontswap_invalidate_page()
1212 	struct zswap_tree *tree = zswap_trees[type];  in zswap_frontswap_invalidate_area()  local
1215 	if (!tree)  in zswap_frontswap_invalidate_area()
1219 	spin_lock(&tree->lock);  in zswap_frontswap_invalidate_area()
1220 	rbtree_postorder_for_each_entry_safe(entry, n, &tree->rbroot, rbnode)  in zswap_frontswap_invalidate_area()
1222 	tree->rbroot = RB_ROOT;  in zswap_frontswap_invalidate_area()
1223 	spin_unlock(&tree->lock);  in zswap_frontswap_invalidate_area()
1224 	kfree(tree);  in zswap_frontswap_invalidate_area()
1230 	struct zswap_tree *tree;  in zswap_frontswap_init()  local
1232 	tree = kzalloc(sizeof(*tree), GFP_KERNEL);  in zswap_frontswap_init()
1233 	if (!tree) {  in zswap_frontswap_init()
1238 	tree->rbroot = RB_ROOT;  in zswap_frontswap_init()
1239 	spin_lock_init(&tree->lock);  in zswap_frontswap_init()
1240 	zswap_trees[type] = tree;  in zswap_frontswap_init()