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authorAlexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com>2022-08-11 18:20:12 +0300
committerDavid S. Miller <davem@davemloft.net>2022-08-15 11:25:09 +0100
commit0ff4eb3d5ebbf72a7fc355e6001a0a6740662bf9 (patch)
treeb125989d84ebd30c5cee492f61550f205f139964 /include
parent66ba215cb51323e4e55e38fd5f250e0fae0cbc94 (diff)
neighbour: make proxy_queue.qlen limit per-device
Right now we have a neigh_param PROXY_QLEN which specifies maximum length of neigh_table->proxy_queue. But in fact, this limitation doesn't work well because check condition looks like: tbl->proxy_queue.qlen > NEIGH_VAR(p, PROXY_QLEN) The problem is that p (struct neigh_parms) is a per-device thing, but tbl (struct neigh_table) is a system-wide global thing. It seems reasonable to make proxy_queue limit per-device based. v2: - nothing changed in this patch v3: - rebase to net tree Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@kernel.org> Cc: Yajun Deng <yajun.deng@linux.dev> Cc: Roopa Prabhu <roopa@nvidia.com> Cc: Christian Brauner <brauner@kernel.org> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: Alexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com> Cc: Konstantin Khorenko <khorenko@virtuozzo.com> Cc: kernel@openvz.org Cc: devel@openvz.org Suggested-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Alexander Mikhalitsyn <alexander.mikhalitsyn@virtuozzo.com> Reviewed-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/neighbour.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 9f0bab0589d9..3827a6b395fd 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -83,6 +83,7 @@ struct neigh_parms {
struct rcu_head rcu_head;
int reachable_time;
+ int qlen;
int data[NEIGH_VAR_DATA_MAX];
DECLARE_BITMAP(data_state, NEIGH_VAR_DATA_MAX);
};