diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 958dd185c0d6..c946bccf0748 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -2432,7 +2432,7 @@ static int btrfs_show_devname(struct seq_file *m, struct dentry *root)
 static long btrfs_nr_cached_objects(struct super_block *sb, struct shrink_control *sc)
 {
 	struct btrfs_fs_info *fs_info = btrfs_sb(sb);
-	const s64 nr = percpu_counter_sum_positive(&fs_info->evictable_extent_maps);
+	const s64 nr = percpu_counter_read_positive(&fs_info->evictable_extent_maps);
 
 	trace_btrfs_extent_map_shrinker_count(fs_info, nr);