lkml.org 
[lkml]   [2004]   [Jan]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [autofs] [RFC] Towards a Modern Autofs
raven@themaw.net wrote:

>On Mon, 12 Jan 2004, Mike Waychison wrote:
>
>
>
>>>Transparency of an autofs filesystem (as I'm calling it) is the situation
>>>where, given a map
>>>
>>>/usr /man1 server:/usr/man1
>>> /man2 server:/usr/man2
>>>
>>>where the filesystem /usr contains, say a directory lib, that needs to be
>>>available while also seeing the automounted directories.
>>>
>>>
>>>
>>>
>>>
>>I see. This requires direct mount triggers to do properly. Trying to
>>do it with some sort of passthrough to the underlying filesystem is a
>>nightmare waiting to happen..
>>
>>
>>
>
>So what are we saying here?
>
>We install triggers at /usr/man1 and /usr/man2.
>Then suppose the map had a nobrowse option.
>Does the trigger also take care of hiding man1 and man2?
>
>Is there some definition of these triggers?
>
>
The example above is a direct map entry with no root offset. The
semantics are different than if it were an indirect map with browsing
enable.

I tested this out against other automount implementations and discovered
that direct map entries with no root offsets should be broken down into
several direct map entries with root offsets.. so:

/usr /man1 server:/usr/man1 \
/man2 server:/usr/man2

is the same as the two distinct entries:

/usr/man1 server:/usr/man1
/usr/man2 server:/usr/man2

Now that I think about it, the discussion in my proposal paper about
multimounts with no root offsets probably isn't required.

--
Mike Waychison
Sun Microsystems, Inc.
1 (650) 352-5299 voice
1 (416) 202-8336 voice
mailto: Michael.Waychison@Sun.COM
http://www.sun.com

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
NOTICE: The opinions expressed in this email are held by me,
and may not represent the views of Sun Microsystems, Inc.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2005-03-22 14:00    [W:0.111 / U:0.460 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site