Set license using %license

[platform/upstream/btrfs-progs.git] / extent-cache.h

diff --git a/extent-cache.h b/extent-cache.h
index 1ce68ef..82db7fa 100644 (file)
--- a/extent-cache.h
+++ b/extent-cache.h
@@ -53,7 +53,7 @@ struct cache_extent *next_cache_extent(struct cache_extent *pe);
 struct cache_extent *search_cache_extent(struct cache_tree *tree, u64 start);
 
 /*
- * Find a cahce_extent which restrictly covers start.
+ * Find a cache_extent which restrictly covers start.
  *
  * If not found, return NULL.
  */
@@ -110,4 +110,12 @@ int add_cache_extent2(struct cache_tree *tree,
                      u64 objectid, u64 start, u64 size);
 int insert_cache_extent2(struct cache_tree *tree, struct cache_extent *pe);
 
+/*
+ * Insert a cache_extent range [start, start + size).
+ *
+ * This function may merge with existing cache_extent.
+ * NOTE: caller must ensure the inserted range won't cover with any existing
+ * range.
+ */
+int add_merge_cache_extent(struct cache_tree *tree, u64 start, u64 size);
 #endif