325 static void zswap_entry_put(struct zswap_tree *tree,  in zswap_entry_put()  argument
332 		zswap_rb_erase(&tree->rbroot, entry);  in zswap_entry_put()
840 	struct zswap_tree *tree;  in zswap_writeback_entry()  local
856 	tree = zswap_trees[swp_type(swpentry)];  in zswap_writeback_entry()
860 	spin_lock(&tree->lock);  in zswap_writeback_entry()
861 	entry = zswap_entry_find_get(&tree->rbroot, offset);  in zswap_writeback_entry()
864 		spin_unlock(&tree->lock);  in zswap_writeback_entry()
867 	spin_unlock(&tree->lock);  in zswap_writeback_entry()
909 	spin_lock(&tree->lock);  in zswap_writeback_entry()
911 	zswap_entry_put(tree, entry);  in zswap_writeback_entry()
920 	if (entry == zswap_rb_search(&tree->rbroot, offset))  in zswap_writeback_entry()
921 		zswap_entry_put(tree, entry);  in zswap_writeback_entry()
922 	spin_unlock(&tree->lock);  in zswap_writeback_entry()
934 	spin_lock(&tree->lock);  in zswap_writeback_entry()
935 	zswap_entry_put(tree, entry);  in zswap_writeback_entry()
936 	spin_unlock(&tree->lock);  in zswap_writeback_entry()
965 	struct zswap_tree *tree = zswap_trees[type];  in zswap_frontswap_store()  local
975 	if (!zswap_enabled || !tree) {  in zswap_frontswap_store()
1043 	spin_lock(&tree->lock);  in zswap_frontswap_store()
1045 		ret = zswap_rb_insert(&tree->rbroot, entry, &dupentry);  in zswap_frontswap_store()
1049 			zswap_rb_erase(&tree->rbroot, dupentry);  in zswap_frontswap_store()
1050 			zswap_entry_put(tree, dupentry);  in zswap_frontswap_store()
1053 	spin_unlock(&tree->lock);  in zswap_frontswap_store()
1077 	struct zswap_tree *tree = zswap_trees[type];  in zswap_frontswap_load()  local
1085 	spin_lock(&tree->lock);  in zswap_frontswap_load()
1086 	entry = zswap_entry_find_get(&tree->rbroot, offset);  in zswap_frontswap_load()
1089 		spin_unlock(&tree->lock);  in zswap_frontswap_load()
1092 	spin_unlock(&tree->lock);  in zswap_frontswap_load()
1106 	spin_lock(&tree->lock);  in zswap_frontswap_load()
1107 	zswap_entry_put(tree, entry);  in zswap_frontswap_load()
1108 	spin_unlock(&tree->lock);  in zswap_frontswap_load()
1116 	struct zswap_tree *tree = zswap_trees[type];  in zswap_frontswap_invalidate_page()  local
1120 	spin_lock(&tree->lock);  in zswap_frontswap_invalidate_page()
1121 	entry = zswap_rb_search(&tree->rbroot, offset);  in zswap_frontswap_invalidate_page()
1124 		spin_unlock(&tree->lock);  in zswap_frontswap_invalidate_page()
1129 	zswap_rb_erase(&tree->rbroot, entry);  in zswap_frontswap_invalidate_page()
1132 	zswap_entry_put(tree, entry);  in zswap_frontswap_invalidate_page()
1134 	spin_unlock(&tree->lock);  in zswap_frontswap_invalidate_page()
1140 	struct zswap_tree *tree = zswap_trees[type];  in zswap_frontswap_invalidate_area()  local
1143 	if (!tree)  in zswap_frontswap_invalidate_area()
1147 	spin_lock(&tree->lock);  in zswap_frontswap_invalidate_area()
1148 	rbtree_postorder_for_each_entry_safe(entry, n, &tree->rbroot, rbnode)  in zswap_frontswap_invalidate_area()
1150 	tree->rbroot = RB_ROOT;  in zswap_frontswap_invalidate_area()
1151 	spin_unlock(&tree->lock);  in zswap_frontswap_invalidate_area()
1152 	kfree(tree);  in zswap_frontswap_invalidate_area()
1158 	struct zswap_tree *tree;  in zswap_frontswap_init()  local
1160 	tree = kzalloc(sizeof(struct zswap_tree), GFP_KERNEL);  in zswap_frontswap_init()
1161 	if (!tree) {  in zswap_frontswap_init()
1166 	tree->rbroot = RB_ROOT;  in zswap_frontswap_init()
1167 	spin_lock_init(&tree->lock);  in zswap_frontswap_init()
1168 	zswap_trees[type] = tree;  in zswap_frontswap_init()