tree 7d52ec628c6aa39a9123dd851a85479298bca25d
parent 9a145c04a293933002ec288a4d6b4f370b59e4d1
author Toke Høiland-Jørgensen <toke@redhat.com> 1624550753 +0200
committer Daniel Borkmann <daniel@iogearbox.net> 1624556474 +0200

doc: Give XDP as example of non-obvious RCU reader/updater pairing

This commit gives an example of non-obvious RCU reader/updater pairing
in the guise of the XDP feature in networking, which calls BPF programs
from network-driver NAPI (softirq) context.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210624160609.292325-4-toke@redhat.com