[Info-vax] Re; Spiralog, RMS Journaling (was Re: FREESPADRIFT)

lawrencedo99 at gmail.com lawrencedo99 at gmail.com
Wed Jun 22 03:27:26 EDT 2016


On Wednesday, June 22, 2016 at 3:30:03 AM UTC+12, Johnny Billquist wrote:
> On 2016-06-18 11:19, Lawrence D’Oliveiro wrote:
>
>> Time Machine plays fast and loose with your filesystem integrity (multiple hard links to directories), and you pay the price in reliability <http://arstechnica.com/civis/viewtopic.php?t=1252811>.
> 
> Multiple hard links are not a problem for file system integrity.

Yes they are.

Consider either (or both) of the following questions:

* How do you prevent reference cycles?
* What happens if you don’t?

> (Hint: what do you think . and .. is?)

Those cause their own share of problems--look at all the code in directory-search APIs that have to special-case those useless entries and skip over them...



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