Wen Gu 25b1d0df94 net/smc: Fix hung_task when removing SMC-R devices ... commit 56d99e81ec upstream. A hung_task is observed when removing SMC-R devices. Suppose that a link group has two active links(lnk_A, lnk_B) associated with two different SMC-R devices(dev_A, dev_B). When dev_A is removed, the link group will be removed from smc_lgr_list and added into lgr_linkdown_list. lnk_A will be cleared and smcibdev(A)->lnk_cnt will reach to zero. However, when dev_B is removed then, the link group can't be found in smc_lgr_list and lnk_B won't be cleared, making smcibdev->lnk_cnt never reaches zero, which causes a hung_task. This patch fixes this issue by restoring the implementation of smc_smcr_terminate_all() to what it was before commit 349d43127d ("net/smc: fix kernel panic caused by race of smc_sock"). The original implementation also satisfies the intention that make sure QP destroy earlier than CQ destroy because we will always wait for smcibdev->lnk_cnt reaches zero, which guarantees QP has been destroyed. Fixes: 349d43127d ("net/smc: fix kernel panic caused by race of smc_sock") Signed-off-by: Wen Gu <guwen@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-01-27 11:05:31 +01:00
..
6lowpan	6lowpan: iphc: Fix an off-by-one check of array index	2021-07-22 16:19:03 +02:00
9p	9p/net: fix missing error check in p9_check_errors	2021-11-18 19:17:16 +01:00
802	net: 802: remove dead leftover after ipx driver removal	2021-08-13 16:30:35 -07:00
8021q	net: vlan: fix underflow for the real_dev refcnt	2021-12-01 09:04:53 +01:00
appletalk	net: socket: rework compat_ifreq_ioctl()	2021-07-23 14:20:25 +01:00
atm
ax25	ax25: uninitialized variable in ax25_setsockopt()	2022-01-27 11:03:59 +01:00
batman-adv	batman-adv: allow netlink usage in unprivileged containers	2022-01-27 11:04:25 +01:00
bluetooth	Bluetooth: hci_sync: Fix not setting adv set duration	2022-01-27 11:05:22 +01:00
bpf	bpf, test, cgroup: Use sk_{alloc,free} for test cases	2021-09-28 09:29:28 +02:00
bpfilter
bridge	netfilter: bridge: add support for pppoe filtering	2022-01-27 11:03:22 +01:00
caif	net-caif: avoid user-triggerable WARN_ON(1)	2021-09-14 12:51:15 +01:00
can	can: isotp: convert struct tpcon::{idx,len} to unsigned int	2022-01-16 09:12:44 +01:00
ceph
core	xdp: check prog type before updating BPF link	2022-01-27 11:05:26 +01:00
dcb
dccp	tcp: switch orphan_count to bare per-cpu counters	2021-11-18 19:16:33 +01:00
decnet	net: Remove redundant if statements	2021-08-05 13:27:50 +01:00
dns_resolver
dsa	net: dsa: fix incorrect function pointer check for MRP ring roles	2022-01-27 11:03:50 +01:00
ethernet	move netdev_boot_setup into Space.c	2021-08-03 13:05:26 +01:00
ethtool	ethtool: do not perform operations on net devices being unregistered	2021-12-14 10:57:09 +01:00
hsr
ieee802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-08-13 06:41:22 -07:00
ife
ipv4	ipv4: avoid quadratic behavior in netns dismantle	2022-01-27 11:05:27 +01:00
ipv6	xfrm: fix policy lookup for ipv6 gre packets	2022-01-27 11:05:14 +01:00
iucv	net/iucv: Replace deprecated CPU-hotplug functions.	2021-08-09 10:13:32 +01:00
kcm
key
l2tp	net/l2tp: Fix reference count leak in l2tp_udp_recv_core	2021-09-09 11:00:20 +01:00
l3mdev
lapb
llc	net: Remove redundant if statements	2021-08-05 13:27:50 +01:00
mac80211	mac80211: allow non-standard VHT MCS-10/11	2022-01-27 11:04:52 +01:00
mac802154	ieee802154: Remove redundant initialization of variable ret	2021-09-07 14:06:08 +01:00
mctp	mctp: Don't let RTM_DELROUTE delete local routes	2021-12-08 09:04:53 +01:00
mpls	net: mpls: Fix notifications when deleting a device	2021-12-08 09:04:47 +01:00
mptcp	mptcp: fix a DSS option writing error	2022-01-27 11:03:59 +01:00
ncsi	net/ncsi: check for error return from call to nla_put_u32	2022-01-05 12:42:37 +01:00
netfilter	netfilter: nft_set_pipapo: allocate pcpu scratch maps on clone	2022-01-27 11:03:51 +01:00
netlabel	net: fix NULL pointer reference in cipso_v4_doi_free	2021-08-30 12:23:18 +01:00
netlink	net: netlink: af_netlink: Prevent empty skb by adding a check on len.	2021-12-17 10:30:15 +01:00
netrom	netrom: fix api breakage in nr_setsockopt()	2022-01-27 11:04:00 +01:00
nfc	nfc: llcp: fix NULL error pointer dereference on sendmsg() after failed bind()	2022-01-27 11:02:48 +01:00
nsh
openvswitch	net: openvswitch: Fix ct_state nat flags for conns arriving from tc	2022-01-27 11:04:02 +01:00
packet	net/packet: rx_owner_map depends on pg_vec	2021-12-22 09:32:44 +01:00
phonet	phonet: refcount leak in pep_sock_accep	2022-01-11 15:35:16 +01:00
psample
qrtr	net: qrtr: revert check in qrtr_endpoint_post()	2021-09-02 11:37:02 +01:00
rds	rds: memory leak in __rds_conn_create()	2021-12-22 09:32:42 +01:00
rfkill
rose
rxrpc	rxrpc: Fix rxrpc_local leak in rxrpc_lookup_peer()	2021-12-08 09:04:49 +01:00
sched	net: openvswitch: Fix ct_state nat flags for conns arriving from tc	2022-01-27 11:04:02 +01:00
sctp	sctp: hold endpoint before calling cb in sctp_transport_lookup_process	2022-01-11 15:35:14 +01:00
smc	net/smc: Fix hung_task when removing SMC-R devices	2022-01-27 11:05:31 +01:00
strparser	bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding	2021-11-18 19:17:11 +01:00
sunrpc	SUNRPC: Partial revert of commit 6f9f17287e	2021-11-18 19:17:20 +01:00
switchdev	net: make switchdev_bridge_port_{,unoffload} loosely coupled with the bridge	2021-08-04 12:35:07 +01:00
tipc	net ticp:fix a kernel-infoleak in __tipc_sendmsg()	2022-01-11 15:35:16 +01:00
tls	net/tls: Fix authentication failure in CCM mode	2021-12-08 09:04:41 +01:00
unix	af_unix: annote lockless accesses to unix_tot_inflight & gc_in_progress	2022-01-27 11:05:30 +01:00
vmw_vsock	virtio/vsock: fix the transport to work with VMADDR_CID_ANY	2021-12-22 09:32:39 +01:00
wireless	cfg80211: Acquire wiphy mutex on regulatory work	2021-12-22 09:32:42 +01:00
x25
xdp	Revert "xsk: Do not sleep in poll() when need_wakeup set"	2021-12-22 09:32:51 +01:00
xfrm	xfrm: fix policy lookup for ipv6 gre packets	2022-01-27 11:05:14 +01:00
compat.c
devres.c
Kconfig	mctp: Add MCTP base	2021-07-29 15:06:49 +01:00
Makefile	mctp: Add MCTP base	2021-07-29 15:06:49 +01:00
socket.c	net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets	2022-01-27 11:03:52 +01:00
sysctl_net.c