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RE: Re: link(2) and symlinks

To: Donn Terry <yyyyyy@xxxxxxxxxxxxxxxxxxxxx>
Subject: RE: Re: link(2) and symlinks
From: Albert Cahalan <yyyyyy@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 17 Mar 2005 14:49:56 -0500
Cc: David Korn <yyy@xxxxxxxxxxxxxxxx>, Austin Group list <yyyyyyyyyyyyyy@xxxxxxxxxxxxx>
References: <DDE1793D7266AD488BB4F5E8D38EACB80AEDC491@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com>
On Thu, 2005-03-17 at 07:38 -0800, Donn Terry wrote:
> Dave reminds me...
> 
> The objective of some of the POSIX statements about symlinks was to
> permit a "fast symlink" implementation where the symlinks did not appear
> as inodes in the filesystem at all, but rather were "smart" directory
> entries.
> 
> If a symlink has a link count (and thus can be the target of a hard
> link) (or protections, or...) then "fast symlinks" become harder
> (effectively impractical), and it dictates that symlinks be implemented
> as inodes.

The act of hard linking can be made to change a "fast symlink"
into a normal symlink.


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