Linus Torvalds 9b5390d7b6 af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock' ... commit 6e1ce3c345 upstream. Right now we use the 'readlock' both for protecting some of the af_unix IO path and for making the bind be single-threaded. The two are independent, but using the same lock makes for a nasty deadlock due to ordering with regards to filesystem locking. The bind locking would want to nest outside the VSF pathname locking, but the IO locking wants to nest inside some of those same locks. We tried to fix this earlier with commit c845acb324 ("af_unix: Fix splice-bind deadlock") which moved the readlock inside the vfs locks, but that caused problems with overlayfs that will then call back into filesystem routines that take the lock in the wrong order anyway. Splitting the locks means that we can go back to having the bind lock be the outermost lock, and we don't have any deadlocks with lock ordering. Acked-by: Rainer Weikusat <rweikusat@cyberadapt.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-09-30 10:18:36 +02:00
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9p
bluetooth
caif
irda
iucv
netfilter
netns
nfc
phonet
sctp
tc_act
6lowpan.h
act_api.h
addrconf.h
af_ieee802154.h
af_rxrpc.h
af_unix.h	af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock'	2016-09-30 10:18:36 +02:00
af_vsock.h
ah.h
arp.h
atmclip.h
ax25.h
ax88796.h
bond_3ad.h
bond_alb.h
bond_options.h
bonding.h	bonding: fix bond_get_stats()	2016-04-20 15:42:04 +09:00
busy_poll.h
cfg80211-wext.h
cfg80211.h
cfg802154.h
checksum.h
cipso_ipv4.h
cls_cgroup.h
codel.h	net_sched: update hierarchical backlog too	2016-05-18 17:06:39 -07:00
compat.h
datalink.h
dcbevent.h
dcbnl.h
dn_dev.h
dn_fib.h
dn_neigh.h
dn_nsp.h
dn_route.h
dn.h
dsa.h
dsfield.h
dst_metadata.h	gro: Make GRO aware of lightweight tunnels.	2016-03-03 15:07:04 -08:00
dst_ops.h
dst.h	net: fix IP early demux races	2015-12-14 23:52:00 -05:00
esp.h
ethoc.h
fib_rules.h
firewire.h
flow_dissector.h
flow.h
flowcache.h
fou.h
garp.h
gen_stats.h
genetlink.h
geneve.h
gre.h
gro_cells.h
gue.h
icmp.h
ieee80211_radiotap.h
ieee802154_netdev.h
if_inet6.h
inet_common.h
inet_connection_sock.h	tcp/dccp: fix another race at listener dismantle	2016-03-03 15:07:07 -08:00
inet_ecn.h	ipv6: update skb->csum when CE mark is propagated	2016-01-31 11:29:01 -08:00
inet_frag.h
inet_hashtables.h
inet_sock.h
inet_timewait_sock.h
inet6_connection_sock.h
inet6_hashtables.h
inetpeer.h	inet: tcp: fix inetpeer_set_addr_v4()	2015-12-16 00:14:12 -05:00
ip_fib.h	route: check and remove route cache when we get route	2016-03-03 15:07:07 -08:00
ip_tunnels.h	vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices	2016-06-24 10:18:18 -07:00
ip_vs.h	ipvs: drop first packet to redirect conntrack	2016-05-11 11:21:09 +02:00
ip.h
ip6_checksum.h
ip6_fib.h
ip6_route.h	ipv6: enforce flowi6_oif usage in ip6_dst_lookup_tail()	2016-03-03 15:07:05 -08:00
ip6_tunnel.h
ipcomp.h
ipconfig.h
ipv6.h
ipx.h
iw_handler.h	cfg80211/wext: fix message ordering	2016-03-16 08:42:59 -07:00
l3mdev.h	net: Propagate lookup failure in l3mdev_get_saddr to caller	2016-01-04 22:58:30 -05:00
lapb.h
lib80211.h
llc_c_ac.h
llc_c_ev.h
llc_c_st.h
llc_conn.h
llc_if.h
llc_pdu.h
llc_s_ac.h
llc_s_ev.h
llc_s_st.h
llc_sap.h
llc.h
lwtunnel.h
mac80211.h
mac802154.h
mip6.h
mld.h
mpls_iptunnel.h
mpls.h
mrp.h
ndisc.h
neighbour.h
net_namespace.h
net_ratelimit.h
netevent.h
netlabel.h
netlink.h
netprio_cgroup.h
netrom.h
nexthop.h
nl802154.h
p8022.h
ping.h
pkt_cls.h
pkt_sched.h
protocol.h
psnap.h
raw.h
rawv6.h
red.h
regulatory.h
request_sock.h
rose.h
route.h	net: Propagate lookup failure in l3mdev_get_saddr to caller	2016-01-04 22:58:30 -05:00
rtnetlink.h
sch_generic.h	net_sched: update hierarchical backlog too	2016-05-18 17:06:39 -07:00
scm.h	unix: correctly track in-flight fds in sending process user_struct	2016-03-03 15:07:05 -08:00
secure_seq.h
slhc_vj.h
snmp.h
sock.h	net: fix warnings in 'make htmldocs' by moving macro definition out of field declaration	2015-12-16 11:44:17 -05:00
Space.h
stp.h
switchdev.h	switchdev: pass pointer to fib_info instead of copy	2016-06-24 10:18:16 -07:00
tcp_memcontrol.h
tcp_states.h
tcp.h	tcp: fix use after free in tcp_xmit_retransmit_queue()	2016-09-30 10:18:34 +02:00
timewait_sock.h
transp_v6.h
tso.h
udp_tunnel.h
udp.h
udplite.h
vsock_addr.h
vxlan.h
wext.h
wimax.h
x25.h
x25device.h
xfrm.h	xfrm: add rcu protection to sk->sk_policy[]	2015-12-11 19:22:06 -05:00