From: Tobias Reif <tobiasreif@...>
Date: 2002-06-03T05:48:37+09:00
Subject: Re: Finding all applications

Rick Bradley wrote:


> A related problem is that an inode may have a number of (even zero)
> filesystem entries (filenames),

zero results in deletion:
http://cm.bell-labs.com/7thEdMan/v7vol2a.pdf
"When a new file is created, an i-node is allocated for it and a 
directory entry is made that contains the name of the file and the 
i-node number. Making a link to an existing file involves creating a 
directory entry with the new name, copying the i-number from the 
original file entry, and incrementing the link-count field of the 
i-node. Removing (deleting) a file is done by decrementing the 
link-count of the i-node specified by its directory entry and erasing 
the directory entry.
If the link-count drops to 0, any disk blocks in the file are freed and 
the i-node is de-allocated."

> and this information is not stored in
> the inode entry.


It isn't?
"[...] (the file's i-node ) contains the description of the file:
[...]
vi the number of links to the file, that is, the number of times it 
appears in a directory"

Tobi


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