mb_debug(ac->ac_sb, "use %llu/%d from inode pa %p\n", start, len, pa); @@ -4667,37 +4668,49 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac) pa = ac->ac_pa;if (ac->ac_b_ex.fe_len < ac->ac_g_ex.fe_len) {...
//将“下一个”最近的inode号保存在本inode的ext4_inode_info->i_dtime中 //这样,当本inode写回磁盘时,会将“下一个”orphaninode号写回磁盘。 2030NEXT_ORPHAN(inode)=le32_to_cpu(EXT4_SB(sb)->s_es->s_last_orphan); //将最近的inode号保存在ext4_super_block->s_last_orphan中, //这样,当...