}
int btrfs_leaf_free_space(struct extent_buffer *leaf);
-/*
- * Get the correct offset inside the page of extent buffer.
- *
- * @eb: target extent buffer
- * @start: offset inside the extent buffer
- *
- * Will handle both sectorsize == PAGE_SIZE and sectorsize < PAGE_SIZE cases.
- */
-static inline size_t get_eb_offset_in_page(const struct extent_buffer *eb,
- unsigned long offset)
-{
- /*
- * For sectorsize == PAGE_SIZE case, eb->start will always be aligned
- * to PAGE_SIZE, thus adding it won't cause any difference.
- *
- * For sectorsize < PAGE_SIZE, we must only read the data that belongs
- * to the eb, thus we have to take the eb->start into consideration.
- */
- return offset_in_page(offset + eb->start);
-}
-
-static inline unsigned long get_eb_page_index(unsigned long offset)
-{
- /*
- * For sectorsize == PAGE_SIZE case, plain >> PAGE_SHIFT is enough.
- *
- * For sectorsize < PAGE_SIZE case, we only support 64K PAGE_SIZE,
- * and have ensured that all tree blocks are contained in one page,
- * thus we always get index == 0.
- */
- return offset >> PAGE_SHIFT;
-}
-
static inline int is_fstree(u64 rootid)
{
if (rootid == BTRFS_FS_TREE_OBJECTID ||