I make simple LKM (Linux kernel module) to interact my MPI application (multi process per one compute node) at user level with kernel level information. I need to extract some data from kernel to the user level application at runtime. My MPI application uses few processes run on the same compute node simultaneously. My LKM provides two files in /proc.
Tag: thread-safety
Is iptables thread safe?
This seems to me to be a basic question, but google and SO fail to give me an answer. As the title says, is iptables thread safe? If I have multiple processes making calls to iptables, should I create a lock for myself? There seems to be some threads from 2009 querying if netfilter is thread-safe, with no solid resolution.