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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2024-06-20 15:21:57 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-06-24 16:41:23 -0700 |
| commit | c67ef53a88db5bcc29a6da20dcbc09206d49d0a9 (patch) | |
| tree | f35d2e83369e7b74259d321726c85a2260b02450 /lib/debug_locks.c | |
| parent | ebad6d0334793f16a16e5320182f665292a31e0c (diff) | |
| download | lwn-c67ef53a88db5bcc29a6da20dcbc09206d49d0a9.tar.gz lwn-c67ef53a88db5bcc29a6da20dcbc09206d49d0a9.zip | |
netfilter: br_netfilter: Use nested-BH locking for brnf_frag_data_storage.
brnf_frag_data_storage is a per-CPU variable and relies on disabled BH
for its locking. Without per-CPU locking in local_bh_disable() on
PREEMPT_RT this data structure requires explicit locking.
Add a local_lock_t to the data structure and use local_lock_nested_bh()
for locking. This change adds only lockdep coverage and does not alter
the functional behaviour for !PREEMPT_RT.
Cc: Florian Westphal <fw@strlen.de>
Cc: Jozsef Kadlecsik <kadlec@netfilter.org>
Cc: Nikolay Aleksandrov <razor@blackwall.org>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Roopa Prabhu <roopa@nvidia.com>
Cc: bridge@lists.linux.dev
Cc: coreteam@netfilter.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://patch.msgid.link/20240620132727.660738-8-bigeasy@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'lib/debug_locks.c')
0 files changed, 0 insertions, 0 deletions