block_cache_get_writable_etc
extern status_t block_cache_get_writable_etc(void *cache, off_t blockNumber,
return block_cache_get_writable_etc(fVolume->BlockCache(),
= block_cache_get_writable_etc(blockCache, 0, -1, reinterpret_cast<void**>(&buffer));
status = block_cache_get_writable_etc(blockCache, rootDirSector, -1,
if (block_cache_get_writable_etc(_cache, blockNumber,