Re: reiser4 plugins

[Hans Reiser <reiser@namesys.com>]

Jonathan Briggs wrote:

>On Tue, 2005-07-05 at 23:44 -0700, Hans Reiser wrote:
>  
>
>>Hubert Chan wrote:
>>    
>>
>>>And a question: is it feasible to store, for each inode, its parent(s),
>>>instead of just the hard link count?
>>> 
>>>
>>>      
>>>
>>Ooh, now that is an interesting old idea I haven't considered in 20
>>years.... makes fsck more robust too....
>>    
>>
>
>Hey, sounds like the idea I proposed a couple months ago of storing the
>path names in each file, instead of in directories.  Only better, since
>each path component isn't text but a link instead.
>
>It still has the performance and locking problem of having to update
>every child file when moving a directory tree to a new parent.  On the
>other hand, maybe the benefit is worth the cost.
>  
>
Oh no, don't store the whole path, store just the parent list.  This
will make fsck more robust in the event that the directory gets
clobbered by hardware error.

I don't think it affects the cost of detecting cycles though, I think it
only makes fsck more robust.

Hans
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