lkml.org 
[lkml]   [2007]   [Mar]   [25]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
FromDmitry Torokhov <>
SubjectRe: chrdev_open lifetime question
DateSun, 25 Mar 2007 01:36:25 -0400
Hi Pete,

On Monday 19 March 2007 21:02, Pete Zaitcev wrote:
> On Wed, 7 Mar 2007 17:23:05 -0500, "Dmitry Torokhov" <dmitry.torokhov@gmail.com> wrote:
> 
> > It seems that if a process keeps a character device open then other
> > processes will also be able to get into filp->f_op->open(inode,filp)
> > in chrdev_open() even after a driver called cdev_del() as part of its
> > unwind procedure. Is this correct or am I missing something?
> 
> I see no replies in the archives. Have you got any private ones?

No I have not.

> 
> Also, what's the context?

I want to switch input handlers to cdevs to rip table of devices out
of input core and lift limit on potential number of devices and was
pondering locking implications.

-- 
Dmitry
-
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: 2007-03-25 07:39    [from the cache]
©2003-2008