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Date: Mon, 27 Jun 2022 13:20:42 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Xin Long <lucien.xin@...il.com>,
Jon Maloy <jmaloy@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 031/102] tipc: simplify the finalize work queue
From: Xin Long <lucien.xin@...il.com>
[ Upstream commit be07f056396d6bb40963c45a02951c566ddeef8e ]
This patch is to use "struct work_struct" for the finalize work queue
instead of "struct tipc_net_work", as it can get the "net" and "addr"
from tipc_net's other members and there is no need to add extra net
and addr in tipc_net by defining "struct tipc_net_work".
Note that it's safe to get net from tn->bcl as bcl is always released
after the finalize work queue is done.
Signed-off-by: Xin Long <lucien.xin@...il.com>
Acked-by: Jon Maloy <jmaloy@...hat.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
net/tipc/core.c | 4 ++--
net/tipc/core.h | 8 +-------
net/tipc/discover.c | 4 ++--
net/tipc/link.c | 5 +++++
net/tipc/link.h | 1 +
net/tipc/net.c | 15 +++------------
6 files changed, 14 insertions(+), 23 deletions(-)
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 40c03085c0ea..96bfcb2986f5 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -60,7 +60,7 @@ static int __net_init tipc_init_net(struct net *net)
tn->trial_addr = 0;
tn->addr_trial_end = 0;
tn->capabilities = TIPC_NODE_CAPABILITIES;
- INIT_WORK(&tn->final_work.work, tipc_net_finalize_work);
+ INIT_WORK(&tn->work, tipc_net_finalize_work);
memset(tn->node_id, 0, sizeof(tn->node_id));
memset(tn->node_id_string, 0, sizeof(tn->node_id_string));
tn->mon_threshold = TIPC_DEF_MON_THRESHOLD;
@@ -112,7 +112,7 @@ static void __net_exit tipc_exit_net(struct net *net)
tipc_detach_loopback(net);
/* Make sure the tipc_net_finalize_work() finished */
- cancel_work_sync(&tn->final_work.work);
+ cancel_work_sync(&tn->work);
tipc_net_stop(net);
tipc_bcast_stop(net);
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 992924a849be..73a26b0b9ca1 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -90,12 +90,6 @@ extern unsigned int tipc_net_id __read_mostly;
extern int sysctl_tipc_rmem[3] __read_mostly;
extern int sysctl_tipc_named_timeout __read_mostly;
-struct tipc_net_work {
- struct work_struct work;
- struct net *net;
- u32 addr;
-};
-
struct tipc_net {
u8 node_id[NODE_ID_LEN];
u32 node_addr;
@@ -150,7 +144,7 @@ struct tipc_net {
struct tipc_crypto *crypto_tx;
#endif
/* Work item for net finalize */
- struct tipc_net_work final_work;
+ struct work_struct work;
/* The numbers of work queues in schedule */
atomic_t wq_count;
};
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index d4ecacddb40c..14bc20604051 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -167,7 +167,7 @@ static bool tipc_disc_addr_trial_msg(struct tipc_discoverer *d,
/* Apply trial address if we just left trial period */
if (!trial && !self) {
- tipc_sched_net_finalize(net, tn->trial_addr);
+ schedule_work(&tn->work);
msg_set_prevnode(buf_msg(d->skb), tn->trial_addr);
msg_set_type(buf_msg(d->skb), DSC_REQ_MSG);
}
@@ -307,7 +307,7 @@ static void tipc_disc_timeout(struct timer_list *t)
if (!time_before(jiffies, tn->addr_trial_end) && !tipc_own_addr(net)) {
mod_timer(&d->timer, jiffies + TIPC_DISC_INIT);
spin_unlock_bh(&d->lock);
- tipc_sched_net_finalize(net, tn->trial_addr);
+ schedule_work(&tn->work);
return;
}
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 7a353ff62844..064fdb8e50e1 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -344,6 +344,11 @@ char tipc_link_plane(struct tipc_link *l)
return l->net_plane;
}
+struct net *tipc_link_net(struct tipc_link *l)
+{
+ return l->net;
+}
+
void tipc_link_update_caps(struct tipc_link *l, u16 capabilities)
{
l->peer_caps = capabilities;
diff --git a/net/tipc/link.h b/net/tipc/link.h
index fc07232c9a12..a16f401fdabd 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -156,4 +156,5 @@ int tipc_link_bc_sync_rcv(struct tipc_link *l, struct tipc_msg *hdr,
int tipc_link_bc_nack_rcv(struct tipc_link *l, struct sk_buff *skb,
struct sk_buff_head *xmitq);
bool tipc_link_too_silent(struct tipc_link *l);
+struct net *tipc_link_net(struct tipc_link *l);
#endif
diff --git a/net/tipc/net.c b/net/tipc/net.c
index 0bb2323201da..671cb4f9d563 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -41,6 +41,7 @@
#include "socket.h"
#include "node.h"
#include "bcast.h"
+#include "link.h"
#include "netlink.h"
#include "monitor.h"
@@ -138,19 +139,9 @@ static void tipc_net_finalize(struct net *net, u32 addr)
void tipc_net_finalize_work(struct work_struct *work)
{
- struct tipc_net_work *fwork;
+ struct tipc_net *tn = container_of(work, struct tipc_net, work);
- fwork = container_of(work, struct tipc_net_work, work);
- tipc_net_finalize(fwork->net, fwork->addr);
-}
-
-void tipc_sched_net_finalize(struct net *net, u32 addr)
-{
- struct tipc_net *tn = tipc_net(net);
-
- tn->final_work.net = net;
- tn->final_work.addr = addr;
- schedule_work(&tn->final_work.work);
+ tipc_net_finalize(tipc_link_net(tn->bcl), tn->trial_addr);
}
void tipc_net_stop(struct net *net)
--
2.35.1
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