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2014-01-21sctp: remove macros sctp_{lock|release}_sockwangweidong1-31/+31
Redefined {lock|release}_sock to sctp_{lock|release}_sock for user space friendly code which we haven't use in years, so removing them. Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21sctp: remove macros sctp_write_[un]_lockwangweidong1-8/+8
Redefined write_[un]lock to sctp_write_[un]lock for user space friendly code which we haven't use in years, so removing them. Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21sctp: remove macros sctp_spin_[un]lockwangweidong1-8/+8
Redefined spin_[un]lock to sctp_spin_[un]lock for user space friendly code which we haven't use in years, so removing them. Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21sctp: remove macros sctp_local_bh_{disable|enable}wangweidong4-26/+26
Redefined local_bh_{disable|enable} to sctp_local_bh_{disable|enable} for user space friendly code which we haven't use in years, so removing them. Signed-off-by: Wang Weidong <wangweidong1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21dsa: Use ether_addr_copyJoe Perches1-1/+1
Use ether_addr_copy instead of memcpy(a, b, ETH_ALEN) to save some cycles on arm and powerpc. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21pktgen: Use ether_addr_copyJoe Perches1-4/+4
Use ether_addr_copy instead of memcpy(a, b, ETH_ALEN) to save some cycles on arm and powerpc. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21netpoll: Use ether_addr_copyJoe Perches1-2/+2
Use ether_addr_copy instead of memcpy(a, b, ETH_ALEN) to save some cycles on arm and powerpc. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21caif_usb: Use ether_addr_copyJoe Perches1-2/+2
Use ether_addr_copy instead of memcpy(a, b, ETH_ALEN) to save some cycles on arm and powerpc. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21atm: Use ether_addr_copyJoe Perches2-5/+6
Use ether_addr_copy instead of memcpy(a, b, ETH_ALEN) to save some cycles on arm and powerpc. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21appletalk: Use ether_addr_copyJoe Perches1-6/+6
Use ether_addr_copy instead of memcpy(a, b, ETH_ALEN) to save some cycles on arm and powerpc. Convert struct aarp_entry.hwaddr[6] to hwaddr[ETH_ALEN]. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-218021q: Use ether_addr_copyJoe Perches2-4/+4
Use ether_addr_copy instead of memcpy(a, b, ETH_ALEN) to save some cycles on arm and powerpc. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21net: Export gro_find_by_type helpersOr Gerlitz1-0/+2
Export the gro_find_receive/complete_by_type helpers to they can be invoked by the gro callbacks of encapsulation protocols such as vxlan. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21net: Add GRO support for UDP encapsulating protocolsOr Gerlitz2-0/+144
Add GRO handlers for protocols that do UDP encapsulation, with the intent of being able to coalesce packets which encapsulate packets belonging to the same TCP session. For GRO purposes, the destination UDP port takes the role of the ether type field in the ethernet header or the next protocol in the IP header. The UDP GRO handler will only attempt to coalesce packets whose destination port is registered to have gro handler. Use a mark on the skb GRO CB data to disallow (flush) running the udp gro receive code twice on a packet. This solves the problem of udp encapsulated packets whose inner VM packet is udp and happen to carry a port which has registered offloads. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21rxrpc: out of bound read in debug codeDan Carpenter1-7/+14
Smatch complains because we are using an untrusted index into the rxrpc_acks[] array. It's just a read and it's only in the debug code, but it's simple enough to add a check and fix it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-218021q: update descriptionYegor Yefremov1-5/+5
Replace deprecated 'vconfig' tool with 'ip' from 'iproute2'. Add some beautifications like replacing 'ethernet' with 'Ethernet' and removing unneeded spaces. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21ipv6: protect protocols not handling ipv4 from v4 connection/bind attemptsHannes Frederic Sowa5-2/+22
Some ipv6 protocols cannot handle ipv4 addresses, so we must not allow connecting and binding to them. sendmsg logic does already check msg->name for this but must trust already connected sockets which could be set up for connection to ipv4 address family. Per-socket flag ipv6only is of no use here, as it is under users control by setsockopt. Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21ipv6: enable anycast addresses as source addresses in ICMPv6 error messagesFX Le Bail1-1/+2
- Uses ipv6_anycast_destination() in icmp6_send(). Suggested-by: Bill Fink <billfink@mindspring.com> Signed-off-by: Francois-Xavier Le Bail <fx.lebail@yahoo.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21tcp: delete redundant calls of tcp_mtup_init()Peter Pan(潘卫平)2-2/+0
As tcp_rcv_state_process() has already calls tcp_mtup_init() for non-fastopen sock, we can delete the redundant calls of tcp_mtup_init() in tcp_{v4,v6}_syn_recv_sock(). Signed-off-by: Weiping Pan <panweiping3@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21packet: fix a couple of cppcheck warningsDaniel Borkmann1-22/+15
Doesn't bring much, but also doesn't hurt us to fix 'em: 1) In tpacket_rcv() flush dcache page we can restirct the scope for start and end and remove one layer of indent. 2) In tpacket_destruct_skb() we can restirct the scope for ph. 3) In alloc_one_pg_vec_page() we can remove the NULL assignment and change spacing a bit. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21ipv4: remove the useless argument from ip_tunnel_hash()Duan Jiong1-5/+4
Since commit c544193214("GRE: Refactor GRE tunneling code") introduced function ip_tunnel_hash(), the argument itn is no longer in use, so remove it. Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21net: remove unnecessary initializations in net_dev_initSabrina Dubroca1-10/+0
softnet_data is already set to 0, no need to use memset or initialize specific fields to 0 or NULL afterwards. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21net_sched: act: export tcf_hash_search() instead of tcf_hash_lookup()WANG Cong2-9/+5
So that we will not expose struct tcf_common to modules. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-21net_sched: act: fetch hinfo from a->ops->hinfoWANG Cong10-58/+51
Every action ops has a pointer to hash info, so we don't need to hard-code it in each module. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19net: fix "queues" uevent between network namespacesWeilong Chen1-0/+26
When I create a new namespace with 'ip netns add net0', or add/remove new links in a namespace with 'ip link add/delete type veth', rx/tx queues events can be got in all namespaces. That is because rx/tx queue ktypes do not have namespace support, and their kobj parents are setted to NULL. This patch is to fix it. Reported-by: Libo Chen <chenlibo@huawei.com> Signed-off-by: Libo Chen <chenlibo@huawei.com> Signed-off-by: Weilong Chen <chenweilong@huawei.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19net_sched: act: remove capab from struct tc_action_opsWANG Cong9-10/+0
It is not actually implemented. Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19net: document accel_priv parameter for __dev_queue_xmit()Jason Wang1-1/+2
To silent "make htmldocs" warning. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19ipv6: optimize link local address searchHannes Frederic Sowa1-3/+9
ipv6_link_dev_addr sorts newly added addresses by scope in ifp->addr_list. Smaller scope addresses are added to the tail of the list. Use this fact to iterate in reverse over addr_list and break out as soon as a higher scoped one showes up, so we can spare some cycles on machines with lot's of addresses. The ordering of the addresses is not relevant and we are more likely to get the eui64 generated address with this change anyway. Suggested-by: Brian Haley <brian.haley@hp.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19ipv6: make IPV6_RECVPKTINFO work for ipv4 datagramsHannes Frederic Sowa6-20/+51
We currently don't report IPV6_RECVPKTINFO in cmsg access ancillary data for IPv4 datagrams on IPv6 sockets. This patch splits the ip6_datagram_recv_ctl into two functions, one which handles both protocol families, AF_INET and AF_INET6, while the ip6_datagram_recv_specific_ctl only handles IPv6 cmsg data. ip6_datagram_recv_*_ctl never reported back any errors, so we can make them return void. Also provide a helper for protocols which don't offer dual personality to further use ip6_datagram_recv_ctl, which is exported to modules. I needed to shuffle the code for ping around a bit to make it easier to implement dual personality for ping ipv6 sockets in future. Reported-by: Gert Doering <gert@space.net> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19sch_netem: replace magic numbers with enumerateYang Yingliang1-19/+28
Replace some magic numbers which describe states of 4-state model loss generator with enumerate. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19ipv6: add flowlabel_consistency sysctlFlorent Fourcot3-0/+16
With the introduction of IPV6_FL_F_REFLECT, there is no guarantee of flow label unicity. This patch introduces a new sysctl to protect the old behaviour, enable by default. Changelog of V3: * rename ip6_flowlabel_consistency to flowlabel_consistency * use net_info_ratelimited() * checkpatch cleanups Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19ipv6: add a flag to get the flow label used remotlyFlorent Fourcot2-2/+11
This information is already available via IPV6_FLOWINFO of IPV6_2292PKTOPTIONS, and them a filtering to get the flow label information. But it is probably logical and easier for users to add this here, and to control both sent/received flow label values with the IPV6_FLOWLABEL_MGR option. Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-19ipv6: add the IPV6_FL_F_REFLECT flag to IPV6_FL_A_GETFlorent Fourcot2-1/+32
With this option, the socket will reply with the flow label value read on received packets. The goal is to have a connection with the same flow label in both direction of the communication. Changelog of V4: * Do not erase the flow label on the listening socket. Use pktopts to store the received value Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-18ipv4: be friend with drop monitorEric Dumazet4-6/+6
Replace some dev_kfree_skb() with kfree_skb() calls when we drop one skb, this might help bug tracking. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-18net: add build-time checks for msg->msg_name sizeSteffen Hurrle33-75/+66
This is a follow-up patch to f3d3342602f8bc ("net: rework recvmsg handler msg_name and msg_namelen logic"). DECLARE_SOCKADDR validates that the structure we use for writing the name information to is not larger than the buffer which is reserved for msg->msg_name (which is 128 bytes). Also use DECLARE_SOCKADDR consistently in sendmsg code paths. Signed-off-by: Steffen Hurrle <steffen@hurrle.net> Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-18net: introduce SO_BPF_EXTENSIONSMichal Sekletar1-0/+4
For user space packet capturing libraries such as libpcap, there's currently only one way to check which BPF extensions are supported by the kernel, that is, commit aa1113d9f85d ("net: filter: return -EINVAL if BPF_S_ANC* operation is not supported"). For querying all extensions at once this might be rather inconvenient. Therefore, this patch introduces a new option which can be used as an argument for getsockopt(), and allows one to obtain information about which BPF extensions are supported by the current kernel. As David Miller suggests, we do not need to define any bits right now and status quo can just return 0 in order to state that this versions supports SKF_AD_PROTOCOL up to SKF_AD_PAY_OFFSET. Later additions to BPF extensions need to add their bits to the bpf_tell_extensions() function, as documented in the comment. Signed-off-by: Michal Sekletar <msekleta@redhat.com> Cc: David Miller <davem@davemloft.net> Reviewed-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller8-79/+70
Conflicts: drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c net/ipv4/tcp_metrics.c Overlapping changes between the "don't create two tcp metrics objects with the same key" race fix in net and the addition of the destination address in the lookup key in net-next. Minor overlapping changes in bnx2x driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17Bluetooth: remove direct compilation of 6lowpan_iphc.cStephen Warren1-4/+0
It's now built as a separate utility module, and enabling BT selects that module in Kconfig. This fixes: net/ieee802154/built-in.o:(___ksymtab_gpl+lowpan_process_data+0x0): multiple definition of `__ksymtab_lowpan_process_data' net/bluetooth/built-in.o:(___ksymtab_gpl+lowpan_process_data+0x0): first defined here net/ieee802154/built-in.o:(___ksymtab_gpl+lowpan_header_compress+0x0): multiple definition of `__ksymtab_lowpan_header_compress' net/bluetooth/built-in.o:(___ksymtab_gpl+lowpan_header_compress+0x0): first defined here net/ieee802154/built-in.o: In function `lowpan_header_compress': net/ieee802154/6lowpan_iphc.c:606: multiple definition of `lowpan_header_compress' net/bluetooth/built-in.o:/home/swarren/shared/git_wa/kernel/kernel.git/net/bluetooth/../ieee802154/6lowpan_iphc.c:606: first defined here net/ieee802154/built-in.o: In function `lowpan_process_data': net/ieee802154/6lowpan_iphc.c:344: multiple definition of `lowpan_process_data' net/bluetooth/built-in.o:/home/swarren/shared/git_wa/kernel/kernel.git/net/bluetooth/../ieee802154/6lowpan_iphc.c:344: first defined here make[1]: *** [net/built-in.o] Error 1 (this change probably simply wasn't "git add"d to a53d34c3465b) Fixes: a53d34c3465b ("net: move 6lowpan compression code to separate module") Fixes: 18722c247023 ("Bluetooth: Enable 6LoWPAN support for BT LE devices") Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17bonding: add netlink attributes to slave link devsfeldma@cumulusnetworks.com1-0/+54
If link is IFF_SLAVE, extend link dev netlink attributes to include slave attributes with new IFLA_SLAVE nest. Add netlink notification (RTM_NEWLINK) when slave status changes from backup to active, or visa-versa. Adds new ndo_get_slave op to net_device_ops to fill skb with IFLA_SLAVE attributes. Currently only used by bonding driver, but could be used by other aggregating devices with slaves. Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17ipv4: fix a dst leak in tunnelsEric Dumazet1-20/+14
This patch : 1) Remove a dst leak if DST_NOCACHE was set on dst Fix this by holding a reference only if dst really cached. 2) Remove a lockdep warning in __tunnel_dst_set() This was reported by Cong Wang. 3) Remove usage of a spinlock where xchg() is enough 4) Remove some spurious inline keywords. Let compiler decide for us. Fixes: 7d442fab0a67 ("ipv4: Cache dst in tunnels") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Cong Wang <cwang@twopensource.com> Cc: Tom Herbert <therbert@google.com> Cc: Maciej Żenczykowski <maze@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17ipv6: send Change Status Report after DAD is completedFlavio Leitner1-24/+33
The RFC 3810 defines two type of messages for multicast listeners. The "Current State Report" message, as the name implies, refreshes the *current* state to the querier. Since the querier sends Query messages periodically, there is no need to retransmit the report. On the other hand, any change should be reported immediately using "State Change Report" messages. Since it's an event triggered by a change and that it can be affected by packet loss, the rfc states it should be retransmitted [RobVar] times to make sure routers will receive timely. Currently, we are sending "Current State Reports" after DAD is completed. Before that, we send messages using unspecified address (::) which should be silently discarded by routers. This patch changes to send "State Change Report" messages after DAD is completed fixing the behavior to be RFC compliant and also to pass TAHI IPv6 testsuite. Signed-off-by: Flavio Leitner <fbl@redhat.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17ipv6: simplify detection of first operational link-local address on interfaceHannes Frederic Sowa1-21/+17
In commit 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") I build the detection of the first operational link-local address much to complex. Additionally this code now has a race condition. Replace it with a much simpler variant, which just scans the address list when duplicate address detection completes, to check if this is the first valid link local address and send RS and MLD reports then. Fixes: 1ec047eb4751e3 ("ipv6: introduce per-interface counter for dad-completed ipv6 addresses") Reported-by: Jiri Pirko <jiri@resnulli.us> Cc: Flavio Leitner <fbl@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Flavio Leitner <fbl@redhat.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17tcp: metrics: Avoid duplicate entries with the same destination-IPChristoph Paasch1-19/+32
Because the tcp-metrics is an RCU-list, it may be that two soft-interrupts are inside __tcp_get_metrics() for the same destination-IP at the same time. If this destination-IP is not yet part of the tcp-metrics, both soft-interrupts will end up in tcpm_new and create a new entry for this IP. So, we will have two tcp-metrics with the same destination-IP in the list. This patch checks twice __tcp_get_metrics(). First without holding the lock, then while holding the lock. The second one is there to confirm that the entry has not been added by another soft-irq while waiting for the spin-lock. Fixes: 51c5d0c4b169b (tcp: Maintain dynamic metrics in local cache.) Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17ipv6: tcp: fix flowlabel value in ACK messages send from TIME_WAITFlorent Fourcot2-6/+12
This patch is following the commit b903d324bee262 (ipv6: tcp: fix TCLASS value in ACK messages sent from TIME_WAIT). For the same reason than tclass, we have to store the flow label in the inet_timewait_sock to provide consistency of flow label on the last ACK. Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17net: rds: fix per-cpu helper usageGerald Schaefer1-4/+3
commit ae4b46e9d "net: rds: use this_cpu_* per-cpu helper" broke per-cpu handling for rds. chpfirst is the result of __this_cpu_read(), so it is an absolute pointer and not __percpu. Therefore, __this_cpu_write() should not operate on chpfirst, but rather on cache->percpu->first, just like __this_cpu_read() did before. Cc: <stable@vger.kernel.org> # 3.8+ Signed-off-byd Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-17Merge branch 'master' of ↵John W. Linville27-268/+462
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2014-01-16net-sysfs: add support for device-specific rx queue sysfs attributesMichael Dalton2-27/+35
Extend existing support for netdevice receive queue sysfs attributes to permit a device-specific attribute group. Initial use case for this support will be to allow the virtio-net device to export per-receive queue mergeable receive buffer size. Signed-off-by: Michael Dalton <mwdalton@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-16net: allow > 0 order atomic page alloc in skb_page_frag_refillMichael Dalton1-3/+1
skb_page_frag_refill currently permits only order-0 page allocs unless GFP_WAIT is used. Change skb_page_frag_refill to attempt higher-order page allocations whether or not GFP_WAIT is used. If memory cannot be allocated, the allocator will fall back to successively smaller page allocs (down to order-0 page allocs). This change brings skb_page_frag_refill in line with the existing page allocation strategy employed by netdev_alloc_frag, which attempts higher-order page allocations whether or not GFP_WAIT is set, falling back to successively lower-order page allocations on failure. Part of migration of virtio-net to per-receive queue page frag allocators. Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Michael Dalton <mwdalton@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-16net_sched: fix error return code in fw_change_attrs()Wei Yongjun1-1/+3
The error code was not set if change indev fail, so the error condition wasn't reflected in the return value. Fix to return a negative error code from this error handling case instead of 0. Fixes: 2519a602c273 ('net_sched: optimize tcf_match_indev()') Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-16tipc: standardize recvmsg routineYing Xue1-38/+42
Standardize the behaviour of waiting for events in TIPC recvmsg() so that all variables of socket or port structures are protected within socket lock, allowing the process of calling recvmsg() to be woken up at appropriate time. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-16tipc: standardize sendmsg routine of connected socketYing Xue1-19/+41
Standardize the behaviour of waiting for events in TIPC send_packet() so that all variables of socket or port structures are protected within socket lock, allowing the process of calling sendmsg() to be woken up at appropriate time. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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