Interesting reading that I agree with;-)

Interesting reading that I agree with;-)

[Hans Reiser]

[-- Attachment #1: Type: text/plain, Size: 122 bytes --]

It is a pity we don't have more folks like Rob working on Linux.

Hans

http://plan9.bell-labs.com/sys/doc/lexnames.html


[-- Attachment #2: plan9.bell-labs.com/sys/doc/lexnames.html --]
[-- Type: text/html, Size: 37017 bytes --]

Re: Interesting reading that I agree with;-)

[Andreas Dilger]

On May 22, 2002  18:33 +0400, Hans Reiser wrote:
> It is a pity we don't have more folks like Rob working on Linux.

I haven't read the whole paper, but at first glance it would appear
to be trivial to do this under Linux, because the dentries maintain such
an absolute path to a file.  The only thing that appears to be needed
for this is the new syscall and the applications to actually use it.
The syscall just needs to walk the dentry tree upwards to generate the
full path, as is already done in the __d_path() function.

Cheers, Andreas
--
Andreas Dilger
http://www-mddsp.enel.ucalgary.ca/People/adilger/
http://sourceforge.net/projects/ext2resize/

Re: Interesting reading that I agree with;-)

[Lehmann]

On Wed, May 22, 2002 at 01:42:04PM -0600, Andreas Dilger <adilger@clusterfs.com> wrote:
> an absolute path to a file.  The only thing that appears to be needed
> for this is the new syscall and the applications to actually use it.

The syscall is named "readlink":

   ls -ld /proc/self/fd/0
   lrwx------    1 root     root           64 May 23 03:23 0 -> /dev/pts/1

Of course, it has to solve problems like the stupid way of appending
(instead of prepending) "(deleted)".

Much more useful. IMHO, would be a flink() call, although it might destroy
some optimizations in some filesystems ;->

-- 
      -----==-                                             |
      ----==-- _                                           |
      ---==---(_)__  __ ____  __       Marc Lehmann      +--
      --==---/ / _ \/ // /\ \/ /       pcg@goof.com      |e|
      -=====/_/_//_/\_,_/ /_/\_\       XX11-RIPE         --+
    The choice of a GNU generation                       |
                                                         |

Re: Interesting reading that I agree with;-)

[Hans Reiser]

Andreas Dilger wrote:

>On May 22, 2002  18:33 +0400, Hans Reiser wrote:
>  
>
>>It is a pity we don't have more folks like Rob working on Linux.
>>    
>>
>
>I haven't read the whole paper, but at first glance it would appear
>to be trivial to do this under Linux, because the dentries maintain such
>an absolute path to a file.  The only thing that appears to be needed
>for this is the new syscall and the applications to actually use it.
>The syscall just needs to walk the dentry tree upwards to generate the
>full path, as is already done in the __d_path() function.
>
>Cheers, Andreas
>--
>Andreas Dilger
>http://www-mddsp.enel.ucalgary.ca/People/adilger/
>http://sourceforge.net/projects/ext2resize/
>
>
>
>  
>
I am told that Viro feels it would break applications.  I think the 
current .. handling should be considered a bug, and I don't really care 
what obscure applications are broken in return for fixing this commonly 
occuring bug.

Hans