ext4_ext_walk_space  240 fs/ext4/ext4_extents.h extern int ext4_ext_walk_space(struct inode *, ext4_lblk_t, ext4_lblk_t,
ext4_ext_walk_space 3214 fs/ext4/extents.c 		error = ext4_ext_walk_space(inode, start_blk, len_blks,