Re: [PATCH 2/7] revoke: add f_light flag for struct file
From: Pekka J Enberg
Date: Fri Mar 09 2007 - 08:13:58 EST
At some point in time, I wrote:
> > Btw, what we can do is delay closing the actual revoked file until the
> > task terminates. This has the unfortunate side-effect that a task has
> > no way of freeing the resources now. But, I am beginning to think it's
> > not a big problem because the inode mapping will be zapped immediately
> > upon revoke anyway...
On Fri, 9 Mar 2007, Alan Cox wrote:
> Actually you can't entirely do this. The revoke() definition states
> explicitly that the driver close occurs at the point of revoke() not
> later.
>
> That can however be pushed into the device revoke method for the cases
> where it might matter (eg tty).
Yeah, you just make f_ops->revoke close the driver and f_ops->flush a
no-op if the driver has already been closed.
Pekka
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/