On 05/26/2011 03:19 PM, Eric Blake wrote:
On 05/11/2011 02:36 PM, Stefan Berger wrote:
> This patch reorders the locks for the nwfilter updates and the access
> the nwfilter objects. In the case that the IP address learning thread
> was instantiating filters while an update happened, the previous order
> lead to a deadlock.
>
> I am also adding a text file describing the locking order of the
> nwfilter subsystem.
>
> Signed-off-by: Stefan Berger<stefanb(a)us.ibm.com>
>
> ---
> src/conf/nwfilter_conf.c | 9 ++++----
> src/nwfilter/locking.txt | 45
Hmm. We have daemon/THREADING.txt, src/qemu/THREADS.txt, and now
src/nwfilter/locking.txt.
Let's pick a single name for all 3 (THREADS.txt is my favorite - it's
shortest, and by being ALL-CAPS, it sorts first in the directory for
when you need it, and does not interfere with .c files for when you
don't want to be bothered by it).
I think you can be pre-approved to push an independent patch that
trivially renames THREADING.txt to THREADS.txt, plus the Makefile.am
fallout.
Also, you need to list your new file in src/Makefile.am.
ACK with those changes.
I pushed the code part now, will do the text later.
Stefan