HelenOS sources

ext4_superblock_get_log_block_size   59 uspace/lib/ext4/include/ext4/superblock.h extern uint32_t ext4_superblock_get_log_block_size(ext4_superblock_t *);
ext4_superblock_get_log_block_size  235 uspace/lib/ext4/src/superblock.c 	return 1024 << ext4_superblock_get_log_block_size(sb);