taglinefilesource code
s_desc_per_block448fs/ext2/super.csb->u.ext2_sb.s_desc_per_block = sb->s_blocksize /
s_desc_per_block155include/linux/ext2_fs.h# define EXT2_DESC_PER_BLOCK(s)    ((s)->u.ext2_sb.s_desc_per_block)
s_desc_per_block41include/linux/ext2_fs_sb.hunsigned long s_desc_per_block;  /* Number of group descriptors per block */