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Jesper Dangaard Brouer 7ba91ecb16 net: for rate-limited ICMP replies save one atomic operation 
It is possible to avoid the atomic operation in icmp{v6,}_xmit_lock,
by checking the sysctl_icmp_msgs_per_sec ratelimit before these calls,
as pointed out by Eric Dumazet, but the BH disabled state must be correct.

The icmp_global_allow() call states it must be called with BH
disabled.  This protection was given by the calls icmp_xmit_lock and
icmpv6_xmit_lock.  Thus, split out local_bh_disable/enable from these
functions and maintain it explicitly at callers.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-01-09 15:49:12 -05:00
..
6lowpan 6lowpan: ndisc: no overreact if no short address is available 2016-09-19 20:19:34 +02:00
9p IB/core: add support to create a unsafe global rkey to ib_create_pd 2016-09-23 13:47:44 -04:00
802 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
8021q net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
appletalk
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atm net: atm: Fix warnings in net/atm/lec.c when !CONFIG_PROC_FS 2016-12-28 15:11:32 -05:00
ax25 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
batman-adv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
bluetooth Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-12-16 10:24:44 -08:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-01-09 15:39:11 -05:00
caif Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
can ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
ceph libceph: remove now unused finish_request() wrapper 2016-12-14 22:39:08 +01:00
core secure_seq: use SipHash in place of MD5 2017-01-09 13:58:57 -05:00
dcb net: dcb: set error code on failures 2016-12-03 23:54:25 -05:00
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
decnet Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dns_resolver
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dsa net: dsa: Make dsa_switch_ops const 2017-01-09 15:44:50 -05:00
ethernet net: make default TX queue length a defined constant 2016-11-07 20:15:55 -05:00
hsr Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-30 12:42:58 -04:00
ieee802154 Makefile: drop -D__CHECK_ENDIAN__ from cflags 2016-12-16 00:13:43 +02:00
ipv4 net: for rate-limited ICMP replies save one atomic operation 2017-01-09 15:49:12 -05:00
ipv6 net: for rate-limited ICMP replies save one atomic operation 2017-01-09 15:49:12 -05:00
ipx ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
irda Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
iucv Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-12-12 19:25:04 -08:00
kcm Merge branch 'work.splice_read' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2016-10-07 15:36:58 -07:00
key netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
l2tp net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
l3mdev
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lapb Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
llc net: fix sleeping for sk_wait_event() 2016-11-14 13:17:21 -05:00
mac80211 net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
mac802154 ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
mpls Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-06 21:33:19 -05:00
ncsi net/ncsi: Improve HNCDSC AEN handler 2016-10-20 11:23:08 -04:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2017-01-05 11:49:57 -05:00
netlabel netlabel: add CALIPSO to the list of built-in protocols 2017-01-06 22:20:45 -05:00
netlink Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
netrom
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nfc genetlink: mark families as __ro_after_init 2016-10-27 16:16:09 -04:00
openvswitch net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
packet packet: fix panic in __packet_set_timestamp on tpacket_v3 in tx mode 2017-01-04 23:55:42 -05:00
phonet netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
qrtr
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rds RDS: validate the requested traces user input against max supported 2017-01-06 22:14:26 -05:00
rfkill
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rose Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
rxrpc rxrpc: Allow listen(sock, 0) to be used to disable listening 2017-01-09 11:10:02 +00:00
sched net/sched: act_csum: compute crc32c on SCTP packets 2017-01-09 14:36:57 -05:00
sctp sctp: prepare asoc stream for stream reconf 2017-01-06 21:07:26 -05:00
strparser strparser: Propagate correct error code in strp_recv() 2016-10-12 01:51:49 -04:00
sunrpc ktime: Get rid of the union 2016-12-25 17:21:22 +01:00
switchdev Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-10-30 12:42:58 -04:00
tipc tipc: reduce risk of user starvation during link congestion 2017-01-03 11:13:05 -05:00
unix Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
vmw_vsock Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-17 20:17:04 -08:00
wimax genetlink: mark families as __ro_after_init 2016-10-27 16:16:09 -04:00
wireless nl80211: fix sched scan netlink socket owner destruction 2017-01-05 10:59:53 +01:00
x25 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
xfrm ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
Kconfig bpf: BPF for lightweight tunnel infrastructure 2016-12-02 10:51:49 -05:00
Makefile
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compat.c net: Assert at build time the assumptions we make about the CMSG header. 2017-01-04 13:24:19 -05:00
socket.c net: change init_inodecache() return void 2017-01-09 12:05:29 -05:00
sysctl_net.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2016-10-06 09:52:23 -07:00