lkml.org 
[lkml]   [2003]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: Writing modules for 2.5
From
Date
Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

> > Next question: what is the correct replacement for MOD_INC_USE_COUNT?
>
> If you know the use count is already one there isnt one, jut use
> MOD_INC_USE_COUNT and flame Rusty
>
> If you can't prove the use count is already one for your own module
> you have a problem (and did in 2.4 in truth). The layers try and
> lock the layer below. So char drivers are locked by core code,
> block drivers likewise, tty drivers and so on...
>
> Most driver layers now have an owner: field in the file ops or other
> structure they register
>
> owner: THIS_MODULE,
>
> (THIS_MODULE comes out currently in a non modular buils too)

My situation is like this: I am converting a char device driver to
work with linux 2.5. In the open and close functions there are
MOD_INC/DEC_USECOUNT calls. The question is what they should be
replaced with. Will it be handled correctly without them?

--
Måns Rullgård
mru@users.sf.net
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:34    [W:0.218 / U:0.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site