erofs_blk_t
erofs_blk_t startblk, addrmask;
erofs_blk_t blkaddr = erofs_blknr(sb, erofs_iloc(inode));
erofs_blk_t addrmask = BIT_ULL(48) - 1;
#define erofs_blknr(sb, pos) ((erofs_blk_t)((pos) >> (sb)->s_blocksize_bits))
erofs_blk_t startblk;
erofs_blk_t blocks;
erofs_blk_t uniaddr;
erofs_blk_t pblk, compressedblks;
__field(erofs_blk_t, blkaddr )