linux/net
Eric Dumazet 3d7c8257d9 net_sched: prio: insure proper transactional behavior
Now prio_init() can return -ENOMEM, it also has to make sure
any allocated qdiscs are freed, since the caller (qdisc_create()) wont
call ->destroy() handler for us.

More generally, we want a transactional behavior for "tc qdisc
change ...", so prio_tune() should not make modifications if
any error is returned.

It means that we must validate parameters and allocate missing qdisc(s)
before taking root qdisc lock exactly once, to not leave the prio qdisc
in an intermediate state.

Fixes: cbdf451164 ("net_sched: prio: properly report out of memory errors")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15 12:29:54 -07:00
..
6lowpan 6lowpan: move mac802154 header 2016-04-13 10:41:10 +02:00
9p remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
802
8021q vlan: Propagate MAC address to VLANs 2016-05-31 11:56:48 -07:00
appletalk appletalk: fix erroneous return value 2016-02-18 14:59:34 -05:00
atm net/atm: sk_err_soft must be positive 2016-05-23 13:51:10 -07:00
ax25 ax25: add link layer header validation function 2016-03-09 22:13:01 -05:00
batman-adv batman-adv: initialize ELP orig address on secondary interfaces 2016-05-18 11:49:44 +08:00
bluetooth Bluetooth: fix power_on vs close race 2016-05-13 16:50:23 +02:00
bridge bridge: Fix incorrect re-injection of STP packets 2016-06-10 22:41:58 -07:00
caif net: caif: fix misleading indentation 2016-03-14 13:09:50 -04:00
can sock: enable timestamping using control messages 2016-04-04 15:50:30 -04:00
ceph libceph: use %s instead of %pE in dout()s 2016-05-30 23:00:23 +02:00
core net_sched: add missing paddattr description 2016-06-08 11:17:39 -07:00
dcb
dccp dccp: do not assume DCCP code is non preemptible 2016-05-02 17:02:25 -04:00
decnet decnet: Do not build routes to devices without decnet private data. 2016-04-10 23:01:30 -04:00
dns_resolver KEYS: Add a facility to restrict new links into a keyring 2016-04-11 22:37:37 +01:00
dsa dsa: Rename switch chip data to cd 2016-05-11 19:36:28 -04:00
ethernet eth: Pull header from first fragment via eth_get_headlen 2016-02-24 13:58:05 -05:00
hsr net/hsr: Use setup_timer and mod_timer. 2016-05-16 14:00:43 -04:00
ieee802154 ieee802154: fix logic error in ieee802154_llsec_parse_dev_addr 2016-05-29 22:36:25 -07:00
ipv4 ovs/gre: fix rtnl notifications on iface deletion 2016-06-14 22:21:44 -07:00
ipv6 udp reuseport: fix packet of same flow hashed to different socket 2016-06-14 17:23:09 -04:00
ipx
irda TTY and Serial driver update for 4.7-rc1 2016-05-20 20:57:27 -07:00
iucv
kcm kcm: fix a signedness in kcm_splice_read() 2016-05-19 11:26:51 -07:00
key
l2tp l2tp: fix configuration passed to setup_udp_tunnel_sock() 2016-06-08 11:11:53 -07:00
l3mdev net: l3mdev: Allow send on enslaved interface 2016-05-09 22:33:52 -04:00
lapb net/lapb: tuse %*ph to dump buffers 2016-05-29 22:33:25 -07:00
llc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
mac80211 mac80211: fix fast_tx header alignment 2016-05-31 12:14:04 +02:00
mac802154 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2016-03-19 10:05:34 -07:00
mpls gso: Remove arbitrary checks for unsupported GSO 2016-05-20 18:03:15 -04:00
netfilter ipvs: update real-server binding of outgoing connections in SIP-pe 2016-06-06 09:47:25 +09:00
netlabel netlabel: fix a problem with netlbl_secattr_catmap_setrng() 2016-04-05 16:10:47 -04:00
netlink netlink: Fix dump skb leak/double free 2016-05-16 22:05:15 -04:00
netrom
nfc nfc: nci: Add nci_nfcc_loopback to the nci core 2016-05-04 01:48:16 +02:00
openvswitch openvswitch: update checksum in {push,pop}_mpls 2016-05-31 13:51:42 -07:00
packet packet: compat support for sock_fprog 2016-06-09 23:41:03 -07:00
phonet sock: struct proto hash function may error 2016-02-11 03:54:14 -05:00
qrtr Merge tag 'qcom-soc-for-4.7-2' into net-next 2016-05-17 14:11:19 -04:00
rds RDS: TCP: fix race windows in send-path quiescence by rds_tcp_accept_one() 2016-06-07 15:10:15 -07:00
rfkill rfkill: Use switch to demux userspace operations 2016-04-05 10:48:53 +02:00
rose
rxrpc rxrpc: fix ptr_ret.cocci warnings 2016-06-07 15:30:21 -07:00
sched net_sched: prio: insure proper transactional behavior 2016-06-15 12:29:54 -07:00
sctp net: diag: add missing declarations 2016-06-10 23:22:55 -07:00
sunrpc NFS client updates for Linux 4.7 2016-05-26 10:33:33 -07:00
switchdev switchdev: pass pointer to fib_info instead of copy 2016-05-17 13:58:49 -04:00
tipc tipc: fix an infoleak in tipc_nl_compat_link_dump 2016-06-02 21:32:37 -07:00
unix constify security_path_{mkdir,mknod,symlink} 2016-03-28 00:47:27 -04:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
wimax
wireless wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel 2016-06-09 09:56:11 +02:00
x25 net: fix a kernel infoleak in x25 module 2016-05-09 22:45:33 -04:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-05-09 15:59:24 -04:00
Kconfig bpf: add generic constant blinding for use in jits 2016-05-16 13:49:32 -04:00
Makefile net: Add Qualcomm IPC router 2016-05-08 23:46:14 -04:00
compat.c packet: compat support for sock_fprog 2016-06-09 23:41:03 -07:00
socket.c fs: poll/select/recvmmsg: use timespec64 for timeout events 2016-05-19 19:12:14 -07:00
sysctl_net.c