开源重复数据删除技术方案 mark

ZFS dedup

    

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开源重复数据删除技术纵览

 

SYSCALL_DEFINE.(read

  vfs_read

    file->f_op->read

      ext4_file_operations.read = do_sync_read  //struct file_operations

        ext4_file_operations.aio_read = generic_file_aio_read

          do_generic_file_read

            mapping->a_ops->readpage

              ext4_ordered_aops.readpage = ext4_readpage  //struct address_space_operations

                ext4_get_block