diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index defc216..f58c0ca 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -682,6 +682,7 @@
 			if (ops->ent_get(&fatent) == FAT_ENT_FREE)
 				free++;
 		} while (fat_ent_next(sbi, &fatent));
+		cond_resched();
 	}
 	sbi->free_clusters = free;
 	sbi->free_clus_valid = 1;