treewide: remove files for building 5.10 kernel

[openwrt/openwrt.git] / target / linux / generic / backport-5.10 / 610-v5.13-01-netfilter-flowtable-separate-replace-destroy-and-sta.patch

diff --git a/target/linux/generic/backport-5.10/610-v5.13-01-netfilter-flowtable-separate-replace-destroy-and-sta.patch b/target/linux/generic/backport-5.10/610-v5.13-01-netfilter-flowtable-separate-replace-destroy-and-sta.patch
deleted file mode 100644 (file)
index 478a2e0..0000000
--- a/target/linux/generic/backport-5.10/610-v5.13-01-netfilter-flowtable-separate-replace-destroy-and-sta.patch
+++ /dev/null
@@ -1,98 +0,0 @@
-From: Oz Shlomo <ozsh@nvidia.com>
-Date: Tue, 23 Mar 2021 00:56:19 +0100
-Subject: [PATCH] netfilter: flowtable: separate replace, destroy and
- stats to different workqueues
-
-Currently the flow table offload replace, destroy and stats work items are
-executed on a single workqueue. As such, DESTROY and STATS commands may
-be backloged after a burst of REPLACE work items. This scenario can bloat
-up memory and may cause active connections to age.
-
-Instatiate add, del and stats workqueues to avoid backlogs of non-dependent
-actions. Provide sysfs control over the workqueue attributes, allowing
-userspace applications to control the workqueue cpumask.
-
-Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
-Reviewed-by: Paul Blakey <paulb@nvidia.com>
-Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
----
-
---- a/net/netfilter/nf_flow_table_offload.c
-+++ b/net/netfilter/nf_flow_table_offload.c
-@@ -13,7 +13,9 @@
- #include <net/netfilter/nf_conntrack_core.h>
- #include <net/netfilter/nf_conntrack_tuple.h>
- 
--static struct workqueue_struct *nf_flow_offload_wq;
-+static struct workqueue_struct *nf_flow_offload_add_wq;
-+static struct workqueue_struct *nf_flow_offload_del_wq;
-+static struct workqueue_struct *nf_flow_offload_stats_wq;
- 
- struct flow_offload_work {
-       struct list_head        list;
-@@ -827,7 +829,12 @@ static void flow_offload_work_handler(st
- 
- static void flow_offload_queue_work(struct flow_offload_work *offload)
- {
--      queue_work(nf_flow_offload_wq, &offload->work);
-+      if (offload->cmd == FLOW_CLS_REPLACE)
-+              queue_work(nf_flow_offload_add_wq, &offload->work);
-+      else if (offload->cmd == FLOW_CLS_DESTROY)
-+              queue_work(nf_flow_offload_del_wq, &offload->work);
-+      else
-+              queue_work(nf_flow_offload_stats_wq, &offload->work);
- }
- 
- static struct flow_offload_work *
-@@ -899,8 +906,11 @@ void nf_flow_offload_stats(struct nf_flo
- 
- void nf_flow_table_offload_flush(struct nf_flowtable *flowtable)
- {
--      if (nf_flowtable_hw_offload(flowtable))
--              flush_workqueue(nf_flow_offload_wq);
-+      if (nf_flowtable_hw_offload(flowtable)) {
-+              flush_workqueue(nf_flow_offload_add_wq);
-+              flush_workqueue(nf_flow_offload_del_wq);
-+              flush_workqueue(nf_flow_offload_stats_wq);
-+      }
- }
- 
- static int nf_flow_table_block_setup(struct nf_flowtable *flowtable,
-@@ -1017,15 +1027,33 @@ EXPORT_SYMBOL_GPL(nf_flow_table_offload_
- 
- int nf_flow_table_offload_init(void)
- {
--      nf_flow_offload_wq  = alloc_workqueue("nf_flow_table_offload",
--                                            WQ_UNBOUND, 0);
--      if (!nf_flow_offload_wq)
-+      nf_flow_offload_add_wq  = alloc_workqueue("nf_ft_offload_add",
-+                                                WQ_UNBOUND | WQ_SYSFS, 0);
-+      if (!nf_flow_offload_add_wq)
-               return -ENOMEM;
- 
-+      nf_flow_offload_del_wq  = alloc_workqueue("nf_ft_offload_del",
-+                                                WQ_UNBOUND | WQ_SYSFS, 0);
-+      if (!nf_flow_offload_del_wq)
-+              goto err_del_wq;
-+
-+      nf_flow_offload_stats_wq  = alloc_workqueue("nf_ft_offload_stats",
-+                                                  WQ_UNBOUND | WQ_SYSFS, 0);
-+      if (!nf_flow_offload_stats_wq)
-+              goto err_stats_wq;
-+
-       return 0;
-+
-+err_stats_wq:
-+      destroy_workqueue(nf_flow_offload_del_wq);
-+err_del_wq:
-+      destroy_workqueue(nf_flow_offload_add_wq);
-+      return -ENOMEM;
- }
- 
- void nf_flow_table_offload_exit(void)
- {
--      destroy_workqueue(nf_flow_offload_wq);
-+      destroy_workqueue(nf_flow_offload_add_wq);
-+      destroy_workqueue(nf_flow_offload_del_wq);
-+      destroy_workqueue(nf_flow_offload_stats_wq);
- }