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2018-03-14sctp: add SCTP_AUTH_FREE_KEY type for AUTHENTICATION_EVENTXin Long4-3/+52
This patch is to add SCTP_AUTH_FREE_KEY type for AUTHENTICATION_EVENT, as described in section 6.1.8 of RFC6458. SCTP_AUTH_FREE_KEY: This report indicates that the SCTP implementation will no longer use the key identifier specified in auth_keynumber. After deactivating a key, it would never be used again, which means it's refcnt can't be held/increased by new chunks. But there may be some chunks in out queue still using it. So only when refcnt is 1, which means no chunk in outqueue is using/holding this key either, this EVENT would be sent. When users receive this notification, they could do DEL_KEY sockopt to remove this shkey, and also tell the peer that this key won't be used in any chunk thoroughly from now on, then the peer can remove it as well safely. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14sctp: add sockopt SCTP_AUTH_DEACTIVATE_KEYXin Long2-3/+74
This patch is to add sockopt SCTP_AUTH_DEACTIVATE_KEY, as described in section 8.3.4 of RFC6458. This set option indicates that the application will no longer send user messages using the indicated key identifier. Note that RFC requires that only deactivated keys that are no longer used by an association can be deleted, but for the backward compatibility, it is not to check deactivated when deleting or replacing one sh_key. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14sctp: add support for SCTP AUTH Information for sendmsgXin Long2-1/+33
This patch is to add support for SCTP AUTH Information for sendmsg, as described in section 5.3.8 of RFC6458. With this option, you can provide shared key identifier used for sending the user message. It's also a necessary send info for sctp_sendv. Note that it reuses sinfo->sinfo_tsn to indicate if this option is set and sinfo->sinfo_ssn to save the shkey ID which can be 0. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14sctp: add refcnt support for sh_keyXin Long6-52/+89
With refcnt support for sh_key, chunks auth sh_keys can be decided before enqueuing it. Changing the active key later will not affect the chunks already enqueued. Furthermore, this is necessary when adding the support for authinfo for sendmsg in next patch. Note that struct sctp_chunk can't be grown due to that performance drop issue on slow cpu, so it just reuses head_skb memory for shkey in sctp_chunk. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14net/smc: schedule free_work when link group is terminatedKarsten Graul1-7/+13
The free_work worker must be scheduled when the link group is abnormally terminated. Signed-off-by: Karsten Graul <kgraul@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14net/smc: free link group without pending free_work onlyUrsula Braun2-1/+3
Make sure there is no pending or running free_work worker for the link group when freeing the link group. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14net/smc: pay attention to MAX_ORDER for CQ entriesUrsula Braun2-2/+9
smc allocates a certain number of CQ entries for used RoCE devices. For mlx5 devices the chosen constant number results in a large allocation causing this warning: [13355.124656] WARNING: CPU: 3 PID: 16535 at mm/page_alloc.c:3883 __alloc_pages_nodemask+0x2be/0x10c0 [13355.124657] Modules linked in: smc_diag(O) smc(O) xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp bridge stp llc ip6table_filter ip6_tables iptable_filter mlx5_ib ib_core sunrpc mlx5_core s390_trng rng_core ghash_s390 prng aes_s390 des_s390 des_generic sha512_s390 sha256_s390 sha1_s390 sha_common ptp pps_core eadm_sch dm_multipath dm_mod vhost_net tun vhost tap sch_fq_codel kvm ip_tables x_tables autofs4 [last unloaded: smc] [13355.124672] CPU: 3 PID: 16535 Comm: kworker/3:0 Tainted: G O 4.14.0uschi #1 [13355.124673] Hardware name: IBM 3906 M04 704 (LPAR) [13355.124675] Workqueue: events smc_listen_work [smc] [13355.124677] task: 00000000e2f22100 task.stack: 0000000084720000 [13355.124678] Krnl PSW : 0704c00180000000 000000000029da76 (__alloc_pages_nodemask+0x2be/0x10c0) [13355.124681] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3 [13355.124682] Krnl GPRS: 0000000000000000 00550e00014080c0 0000000000000000 0000000000000001 [13355.124684] 000000000029d8b6 00000000f3bfd710 0000000000000000 00000000014080c0 [13355.124685] 0000000000000009 00000000ec277a00 0000000000200000 0000000000000000 [13355.124686] 0000000000000000 00000000000001ff 000000000029d8b6 0000000084723720 [13355.124708] Krnl Code: 000000000029da6a: a7110200 tmll %r1,512 000000000029da6e: a774ff29 brc 7,29d8c0 #000000000029da72: a7f40001 brc 15,29da74 >000000000029da76: a7f4ff25 brc 15,29d8c0 000000000029da7a: a7380000 lhi %r3,0 000000000029da7e: a7f4fef1 brc 15,29d860 000000000029da82: 5820f0c4 l %r2,196(%r15) 000000000029da86: a53e0048 llilh %r3,72 [13355.124720] Call Trace: [13355.124722] ([<000000000029d8b6>] __alloc_pages_nodemask+0xfe/0x10c0) [13355.124724] [<000000000013bd1e>] s390_dma_alloc+0x6e/0x148 [13355.124733] [<000003ff802eeba6>] mlx5_dma_zalloc_coherent_node+0x8e/0xe0 [mlx5_core] [13355.124740] [<000003ff802eee18>] mlx5_buf_alloc_node+0x70/0x108 [mlx5_core] [13355.124744] [<000003ff804eb410>] mlx5_ib_create_cq+0x558/0x898 [mlx5_ib] [13355.124749] [<000003ff80407d40>] ib_create_cq+0x48/0x88 [ib_core] [13355.124751] [<000003ff80109fba>] smc_ib_setup_per_ibdev+0x52/0x118 [smc] [13355.124753] [<000003ff8010bcb6>] smc_conn_create+0x65e/0x728 [smc] [13355.124755] [<000003ff801081a2>] smc_listen_work+0x2d2/0x540 [smc] [13355.124756] [<0000000000162c66>] process_one_work+0x1be/0x440 [13355.124758] [<0000000000162f40>] worker_thread+0x58/0x458 [13355.124759] [<0000000000169e7e>] kthread+0x14e/0x168 [13355.124760] [<00000000009ce8be>] kernel_thread_starter+0x6/0xc [13355.124762] [<00000000009ce8b8>] kernel_thread_starter+0x0/0xc [13355.124762] Last Breaking-Event-Address: [13355.124764] [<000000000029da72>] __alloc_pages_nodemask+0x2ba/0x10c0 [13355.124764] ---[ end trace 34be38b581c0b585 ]--- This patch reduces the smc constant for the maximum number of allocated completion queue entries SMC_MAX_CQE by 2 to avoid high round up values in the mlx5 code, and reduces the number of allocated completion queue entries even more, if the final allocation for an mlx5 device hits the MAX_ORDER limit. Reported-by: Ihnken Menssen <menssen@de.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14sock: remove zerocopy sockopt restriction on closed tcp stateWillem de Bruijn1-2/+0
Socket option SO_ZEROCOPY determines whether the kernel ignores or processes flag MSG_ZEROCOPY on subsequent send calls. This to avoid changing behavior for legacy processes. Limiting the state change to closed sockets is annoying with passive sockets and not necessary for correctness. Once created, zerocopy skbs are processed based on their private state, not this socket flag. Remove the constraint. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-14pktgen: Fix memory leak in pktgen_if_writeGustavo A. R. Silva1-1/+1
_buf_ is an array and the one that must be freed is _tp_ instead. Fixes: a870a02cc963 ("pktgen: use dynamic allocation for debug print buffer") Reported-by: Wang Jian <jianjian.wang1@gmail.com> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-13pktgen: use dynamic allocation for debug print bufferArnd Bergmann1-7/+8
After the removal of the VLA, we get a harmless warning about a large stack frame: net/core/pktgen.c: In function 'pktgen_if_write': net/core/pktgen.c:1710:1: error: the frame size of 1076 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] The function was previously shown to be safe despite hitting the 1024 bye warning level. To get rid of the annoyging warning, while keeping it readable, this changes it to use strndup_user(). Obviously this is not a fast path, so the kmalloc() overhead can be disregarded. Fixes: 35951393bbff ("pktgen: Remove VLA usage") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-13net: Convert rds_tcp_net_opsKirill Tkhai1-0/+1
These pernet_operations create and destroy sysctl table and listen socket. Also, exit method flushes global workqueue and work. Everything looks per-net safe, so we can mark them async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-13net: Convert tipc_net_opsKirill Tkhai1-0/+1
TIPC looks concentrated in itself, and other pernet_operations seem not touching its entities. tipc_net_ops look pernet-divided, and they should be safe to be executed in parallel for several net the same time. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-13net: Convert sctp_ctrlsock_opsKirill Tkhai1-0/+1
These pernet_operations create and destroy net::sctp::ctl_sock. Since pernet_operations do not send sctp packets each other, they look safe to be marked as async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-13net: Convert sctp_defaults_opsKirill Tkhai1-0/+1
These pernet_operations have a deal with sysctl, /proc entries and statistics. Also, there are freeing of net::sctp::addr_waitq queue and net::sctp::local_addr_list in exit method. All of them look pernet-divided, and it seems these items are only interesting for sctp_defaults_ops, which are safe to be executed in parallel. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-13sctp: fix error return code in sctp_sendmsg_new_asoc()Wei Yongjun1-3/+7
Return error code -EINVAL in the address len check error handling case since 'err' can be overwrite to 0 by 'err = sctp_verify_addr()' in the for loop. Fixes: 2c0dbaa0c43d ("sctp: add support for SCTP_DSTADDRV4/6 Information for sendmsg") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Reviewed-by: Xin Long <lucien.xin@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-12net: rds: drop VLA in rds_walk_conn_path_info()Salvatore Mesoraca1-1/+4
Avoid VLA[1] by using an already allocated buffer passed by the caller. [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-12net: rds: drop VLA in rds_for_each_conn_info()Salvatore Mesoraca3-1/+5
Avoid VLA[1] by using an already allocated buffer passed by the caller. [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-12net: Make RX-FCS and HW GRO mutually exclusiveGal Pressman1-4/+11
Same as LRO, hardware GRO cannot be enabled with RX-FCS. When both are requested, hardware GRO will be dropped. Suggested-by: David Miller <davem@davemloft.net> Signed-off-by: Gal Pressman <galp@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-12net: llc: drop VLA in llc_sap_mcast()Salvatore Mesoraca1-3/+4
Avoid a VLA[1] by using a real constant expression instead of a variable. The compiler should be able to optimize the original code and avoid using an actual VLA. Anyway this change is useful because it will avoid a false positive with -Wvla, it might also help the compiler generating better code. [1] https://lkml.org/lkml/2018/3/7/621 Signed-off-by: Salvatore Mesoraca <s.mesoraca16@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-12rds: remove redundant variable 'sg_off'Colin Ian King1-2/+0
Variable sg_off is assigned a value but it is never read, hence it is redundant and can be removed. Cleans up clang warning: net/rds/message.c:373:2: warning: Value stored to 'sg_off' is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-12ipv6: Use ip6_multipath_hash_policy() in rt6_multipath_hash().David S. Miller1-1/+1
Make use of the new helper. Suggested-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09net: introduce IFF_NO_RX_HANDLERPaolo Abeni1-0/+3
Some network devices - notably ipvlan slave - are not compatible with any kind of rx_handler. Currently the hook can be installed but any configuration (bridge, bond, macsec, ...) is nonfunctional. This change allocates a priv_flag bit to mark such devices and explicitly forbid installing a rx_handler if such bit is set. The new bit is used by ipvlan slave device. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09pktgen: Remove VLA usageGustavo A. R. Silva1-1/+1
In preparation to enabling -Wvla, remove VLA usage and replace it with a fixed-length array instead. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09net sched actions: implement get_fill_size routine in act_gactRoman Mashak1-0/+14
Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09net sched actions: calculate add/delete event message sizeRoman Mashak1-0/+43
Introduce routines to calculate size of the shared tc netlink attributes and the full message size including netlink header and tc service header. Update add/delete action logic to have the size for event messages, the size is passed to tcf_add_notify() and tcf_del_notify() where the notification message is being allocated and constructed. Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09net sched actions: update Add/Delete action API with new argumentRoman Mashak2-9/+15
Introduce a new function argument to carry total attributes size for correct allocation of skb in event messages. Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-09net: do not create fallback tunnels for non-default namespacesEric Dumazet5-10/+33
fallback tunnels (like tunl0, gre0, gretap0, erspan0, sit0, ip6tnl0, ip6gre0) are automatically created when the corresponding module is loaded. These tunnels are also automatically created when a new network namespace is created, at a great cost. In many cases, netns are used for isolation purposes, and these extra network devices are a waste of resources. We are using thousands of netns per host, and hit the netns creation/delete bottleneck a lot. (Many thanks to Kirill for recent work on this) Add a new sysctl so that we can opt-out from this automatic creation. Note that these tunnels are still created for the initial namespace, to be the least intrusive for typical setups. Tested: lpk43:~# cat add_del_unshare.sh for i in `seq 1 40` do (for j in `seq 1 100` ; do unshare -n /bin/true >/dev/null ; done) & done wait lpk43:~# echo 0 >/proc/sys/net/core/fb_tunnels_only_for_init_net lpk43:~# time ./add_del_unshare.sh real 0m37.521s user 0m0.886s sys 7m7.084s lpk43:~# echo 1 >/proc/sys/net/core/fb_tunnels_only_for_init_net lpk43:~# time ./add_del_unshare.sh real 0m4.761s user 0m0.851s sys 1m8.343s lpk43:~# Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: ethtool: extend RXNFC API to support RSS spreading of filter matchesEdward Cree1-15/+49
We use a two-step process to configure a filter with RSS spreading. First, the RSS context is allocated and configured using ETHTOOL_SRSSH; this returns an identifier (rss_context) which can then be passed to subsequent invocations of ETHTOOL_SRXCLSRLINS to specify that the offset from the RSS indirection table lookup should be added to the queue number (ring_cookie) when delivering the packet. Drivers for devices which can only use the indirection table entry directly (not add it to a base queue number) should reject rule insertions combining RSS with a nonzero ring_cookie. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08rds: rds_info_from_znotifier() can be statickbuild test robot1-1/+1
Fixes: 9426bbc6de99 ("rds: use list structure to track information for zerocopy completion notification") Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08rds: rds_message_zcopy_from_user() can be statickbuild test robot1-1/+1
Fixes: d40a126b16ea ("rds: refactor zcopy code into rds_message_zcopy_from_user") Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net/ncsi: unlock on error in ncsi_set_interface_nl()Dan Carpenter1-0/+2
There are two error paths which are missing unlocks in this function. Fixes: 955dc68cb9b2 ("net/ncsi: Add generic netlink family") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net/ncsi: use kfree_skb() instead of kfree()Dan Carpenter1-2/+2
We're supposed to use kfree_skb() to free these sk_buffs. Fixes: 955dc68cb9b2 ("net/ncsi: Add generic netlink family") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08openvswitch: fix vport packet length check.William Tu1-4/+4
When sending a packet to a tunnel device, the dev's hard_header_len could be larger than the skb->len in function packet_length(). In the case of ip6gretap/erspan, hard_header_len = LL_MAX_HEADER + t_hlen, which is around 180, and an ARP packet sent to this tunnel has skb->len = 42. This causes the 'unsign int length' to become super large because it is negative value, causing the later ovs_vport_send to drop it due to over-mtu size. The patch fixes it by setting it to 0. Signed-off-by: William Tu <u9012063@gmail.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convet ipv6_net_opsKirill Tkhai1-0/+1
These pernet_operations are similar to ipv4_net_ops. They are safe to be async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert ipv4_net_opsKirill Tkhai1-0/+1
These pernet_operations register and unregister bunch of nf_conntrack_l4proto. Exit method unregisters related sysctl, init method calls init_net and get_net_proto. The whole builtin_l4proto4 array has pretty simple init_net and get_net_proto methods. The first one register sysctl table, the second one is just RO memory dereference. So, these pernet_operations are safe to be marked as async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert iptable_security_net_opsKirill Tkhai1-0/+1
These pernet_operations unregister net::ipv4::iptable_security table. Another net/pernet_operations do not send ipv4 packets to foreign net namespaces. So, we mark them async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert iptable_raw_net_opsKirill Tkhai1-0/+1
These pernet_operations unregister net::ipv4::iptable_raw table. Another net/pernet_operations do not send ipv4 packets to foreign net namespaces. So, we mark them async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert iptable_nat_net_opsKirill Tkhai1-0/+1
These pernet_operations unregister net::ipv4::nat_table table. Another net/pernet_operations do not send ipv4 packets to foreign net namespaces. So, we mark them async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert iptable_mangle_net_opsKirill Tkhai1-0/+1
These pernet_operations unregister net::ipv4::iptable_mangle table. Another net/pernet_operations do not send ipv4 packets to foreign net namespaces. So, we mark them async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert arptable_filter_net_opsKirill Tkhai1-0/+1
These pernet_operations unregister net::ipv4::arptable_filter. Another net/pernet_operations do not send arp packets to foreign net namespaces. So, we mark them async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert pg_net_opsKirill Tkhai1-0/+1
These pernet_operations create per-net pktgen threads and /proc entries. These pernet subsys looks closed in itself, and there are no pernet_operations outside this file, which are interested in the threads. Init and/or exit methods look safe to be executed in parallel. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert nfnl_queue_net_opsKirill Tkhai1-0/+1
These pernet_operations register and unregister net::nf::queue_handler and /proc entry. The handler is accessed only under RCU, so this looks safe to convert them. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert nfnl_log_net_opsKirill Tkhai1-0/+1
These pernet_operations create and destroy /proc entries. Also, exit method unsets nfulnl_logger. The logger is not set by default, and it becomes bound via userspace request. So, they look safe to be made async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert cttimeout_opsKirill Tkhai1-0/+1
These pernet_operations also look closed in themself. Exit method touch only per-net structures, so it's safe to execute them for several net namespaces in parallel. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert nfnl_acct_opsKirill Tkhai1-0/+1
These pernet_operations look closed in themself, and there are no other users of net::nfnl_acct_list outside. They are safe to be executed for several net namespaces in parallel. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert nfnetlink_net_opsKirill Tkhai1-0/+1
These pernet_operations create and destroy net::nfnl socket of NETLINK_NETFILTER code. There are no other places, where such type the socket is created, except these pernet_operations. It seem other pernet_operations depending on CONFIG_NETFILTER_NETLINK send messages to this socket. So, we mark it async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert nf_tables_net_opsKirill Tkhai1-0/+1
These pernet_operations looks nicely separated per-net. Exit method unregisters net's nf tables objects. We allow them be executed in parallel. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert xfrm_user_net_opsKirill Tkhai1-0/+1
These pernet_operations create and destroy net::xfrm::nlsk socket of NETLINK_XFRM. There is only entry point, where it's dereferenced, it's xfrm_user_rcv_msg(). There is no in-kernel senders to this socket. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net: Convert ip6 tables pernet_operationsKirill Tkhai5-0/+5
The pernet_operations: ip6table_filter_net_ops ip6table_mangle_net_ops ip6table_nat_net_ops ip6table_raw_net_ops ip6table_security_net_ops have exit methods, which call ip6t_unregister_table(). ip6table_filter_net_ops has init method registering filter table. Since there must not be in-flight ipv6 packets at the time of pernet_operations execution and since pernet_operations don't send ipv6 packets each other, these pernet_operations are safe to be async. Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-03-08net/sched: cls_flower: Add support to handle first frag as match fieldPieter Jansen van Vuuren1-0/+6
Allow setting firstfrag as matching option in tc flower classifier. # tc filter add dev eth0 protocol ip parent ffff: \ flower indev eth0 \ ip_flags firstfrag action mirred egress redirect dev eth1 Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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