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| author |   Toke Høiland-Jørgensen <toke@redhat.com> | 2021-06-24 18:05:56 +0200 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2021-06-24 19:43:11 +0200 |
| commit | 77151ccf10659d4066074f278402032f3265f0cc (patch) | |
| tree | 0e91b4e0e041da86beb85813ee2fa49e8ab497c0 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | xdp: Add proper __rcu annotations to redirect map entries (diff) | |
| download | linux-dev-77151ccf10659d4066074f278402032f3265f0cc.tar.xz linux-dev-77151ccf10659d4066074f278402032f3265f0cc.zip | |
bpf, sched: Remove unneeded rcu_read_lock() around BPF program invocation
The rcu_read_lock() call in cls_bpf and act_bpf are redundant: on the TX
side, there's already a call to rcu_read_lock_bh() in __dev_queue_xmit(),
and on RX there's a covering rcu_read_lock() in
netif_receive_skb{,_list}_internal().
With the previous patches we also amended the lockdep checks in the map
code to not require any particular RCU flavour, so we can just get rid of
the rcu_read_lock()s.
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210624160609.292325-7-toke@redhat.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions