Re: About locking in the kernel

[Ed L Cashin <ecashin@uga.edu>]

Ian Kent <raven@themaw.net> writes:

> On Sun, 3 Aug 2003, Ian Kent wrote:
>
>> 
>> Hi all,
>> 
>> I have been working on enhancements to the autofs4 kernel (together with 
>> the daemon) module to add support for ghosting (aka. browsable 
>> directories). Doing this has left me with the question of when and how 
>> should locks and semaphores be used.
>> 
>
> Anybody willing to talk about this?
>
> Is it a stupid question?
>
> Or am I missing something or maybe everything?

Well, I don't know anything about autofs4 or what you mean by ghosting
(since it seems you don't mean imaging a complete O.S. installation
with the commercial product, Ghost), so I wasn't going to respond.

If you're interested in learning more about locking in the kernel,
though, a couple places to start would be these.  (Do "make psdocs"
beforehand.)

  Documentation/DocBook/kernel-locking.ps

... and if you're interested in virtual memory, 

  Documentation/vm/locking


-- 
--Ed L Cashin            |   PGP public key:
  ecashin@uga.edu        |   http://noserose.net/e/pgp/

--
Kernelnewbies: Help each other learn about the Linux kernel.
Archive:       http://mail.nl.linux.org/kernelnewbies/
FAQ:           http://kernelnewbies.org/faq/