Re: [PATCH] ATM locking fix.

Maksim Krasnyanskiy (
Wed, 27 Mar 2002 17:55:50 -0800

>I'm applying this patch with some minor cleanups of my own.
Ok. And don't forget a patch sent by Francois on top of mine.

>I went and then checked around for atm_find_dev() users to
>make sure they held the atm_dev_lock, and I discovered several pieces
>of "hidden treasure".
Hmm, I thought I check all of them.

>Firstly, have a look at net/atm/common.c:atm_ioctl() and how it
>accesses userspace while holding atm_dev_lock. That is just the
>tip of the iceberg.
Yeah, that's what I said from the very beginning. ATM locking is messed up.


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