比较新的日志文件系统简化了系统重新启动时的磁盘检查过程。

Newer journaling file systems simplify the disk-check process when the system starts up again.

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在重新引导系统时，只需要检查仍然标为DIRTY的文件系统的一致性。

When the system reboots, only file systems that are still marked as DIRTY need to be checked for consistency.

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如果当前检查点失效，文件系统只需回滚到上一个有效的检查点，重新获得有效的文件系统。

If the current checkpoint was invalid, the file system need only step back to the last good checkpoint for a valid file system.

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