F2FS_ORPHANS_PER_BLOCK
if (nentries == F2FS_ORPHANS_PER_BLOCK) {
F2FS_ORPHANS_PER_BLOCK;
#define GET_ORPHAN_BLOCKS(n) (((n) + F2FS_ORPHANS_PER_BLOCK - 1) / \
F2FS_ORPHANS_PER_BLOCK)
__le32 ino[F2FS_ORPHANS_PER_BLOCK]; /* inode numbers */