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2008-03-04rc80211-pid: fix rate adjustmentStefano Brivio
Merge rate_control_pid_shift_adjust() to rate_control_pid_adjust_rate() in order to make the learning algorithm aware of constraints on rates. Also add some comments and rename variables. This fixes a bug which prevented 802.11b/g non-AP STAs from working with 802.11b only AP STAs. This patch was originally destined for 2.6.26, and is being backported to fix a user reported problem in post-2.6.24 kernels. Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-04[ESP]: Add select on AUTHENCHerbert Xu
Now the ESP uses the AEAD interface even for algorithms which are not combined mode, we need to select CONFIG_CRYPTO_AUTHENC as otherwise only combined mode algorithms will work. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[TCP]: TCP cubic v2.2Sangtae Ha
We have updated CUBIC to fix some issues with slow increase in large BDP networks. We also improved its convergence speed. The fix is in fact very simple -- the window increase limit of smax during the window probing phase (i.e., convex growth phase) is removed. We found that this does not affect TCP friendliness, but only improves its scalability. We have run some tests in our lab and also over the Internet path from NCSU to Japan. These results can be seen from the following page: http://netsrv.csc.ncsu.edu/wiki/index.php/Intra_protocol_fairness_testing_with_linux-2.6.23.9 http://netsrv.csc.ncsu.edu/wiki/index.php/RTT_fairness_testing_with_linux-2.6.23.9 http://netsrv.csc.ncsu.edu/wiki/index.php/TCP_friendliness_testing_with_linux-2.6.23.9 Signed-off-by: Sangtae Ha <sha2@ncsu.edu> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - Make ip6_dst_gc simplerDaniel Lezcano
This patches improves the readibility of the ip6_dst_gc() routine. It simplifies long lines which grow a lot due to the introduction of network namespaces support. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - make garbage collection work with multiple network ↵Benjamin Thery
namespaces This patch makes the necessary changes to make IPv6 dst_entry garbage collection work with multiple network namespaces. In ip6_dst_gc(), static local variables are now declared per-namespace. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - move ip6_dst_ops inside the network namespaceBenjamin Thery
The ip6_dst_ops is moved inside the network namespace structure. All references to this structure are now relative to the initial network namespace. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - dynamically allocate ip6_dst_opsDaniel Lezcano
ip6_dst_ops is dynamically allocated in init and exit functions. That provides the ability to do multiple instanciations of this structure. This will be needed for network namespaces, indeed dst_ops stores data that are required to be per namespace: entries and gc_thresh. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] rt6_info - move rt6_info structure inside the namespaceDaniel Lezcano
The rt6_info structures are moved inside the network namespace structure. All references to these structures are now relative to the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] rt6_info - make rt6_info accessed as a pointerDaniel Lezcano
This patch make mindless changes and prepares the code to use dynamic allocation for rt6_info structure. The code accesses the rt6_info structure as a pointer instead of a global static variable. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - make route6 per namespaceDaniel Lezcano
This patch makes the routing engine use the network namespaces to access routing informations: Add a network namespace parameter to ipv6_route_ioctl and propagate the network namespace value to all the routing code that have not yet been changed. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - Pass the network namespace parameter to ↵Daniel Lezcano
rt6_purge_dflt_routers Add a network namespace parameter to rt6_purge_dflt_routers. This is needed to call fib6_get_table with the appropriate network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - Pass network namespace to rt6_add_route_info and ↵Daniel Lezcano
rt6_get_route_info Add a network namespace parameter to rt6_add_route_info() and rt6_get_route_info to enable them to handle multiple network namespaces. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - Make proc entry /proc/net/rt6_stats per namespaceDaniel Lezcano
Make the proc entry /proc/net/rt6_stats work in all network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - Pass the network namespace parameter to rt6_lookupDaniel Lezcano
Add a network namespace parameter to rt6_lookup(). Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - create route6 proc files for the namespaceDaniel Lezcano
Make /proc/net/ipv6_route and /proc/net/rt6_stats to be per namespace. These proc files are now created when the network namespace is initialized. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETPOLL]: Revert two bogus cleanups that broke netconsole.David S. Miller
Based upon a report by Andrew Morton and code analysis done by Jarek Poplawski. This reverts 33f807ba0d9259e7c75c7a2ce8bd2787e5b540c7 ("[NETPOLL]: Kill NETPOLL_RX_DROP, set but never tested.") and c7b6ea24b43afb5749cb704e143df19d70e23dea ("[NETPOLL]: Don't need rx_flags."). The rx_flags did get tested for zero vs. non-zero and therefore we do need those tests and that code which sets NETPOLL_RX_DROP et al. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[AF_KEY]: Dump SA/SP entries non-atomicallyTimo Teras
Stop dumping of entries when af_key socket receive queue is getting full and continue it later when there is more room again. This fixes dumping of large databases. Currently the entries not fitting into the receive queue are just dropped (including the end-of-dump message) which can confuse applications. Signed-off-by: Timo Teras <timo.teras@iki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[TIPC]: Convert tsock->sem in a mutexMatthias Kaehlcke
The semaphore tsock->sem is used as mutex, convert it to the mutex API Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] rt6_stats - make the stats per network namespaceBenjamin Thery
The rt6_stats is now per namespace with this patch. It is allocated when a network namespace is created and freed when the network namespace exits and references are relative to the network namespace. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] rt6_stats - dynamically allocate the routes statisticsDaniel Lezcano
This patch allocates the rt6_stats struct dynamically when the fib6 is initialized. That provides the ability to create several instances of this structure for the network namespaces. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] fib6_rules - handle several network namespacesDaniel Lezcano
The fib6_rules_ops is moved to the network namespace structure. All references are changed to have it relatively to it. Each time a network namespace is created a new fib6_rules_ops is allocated, initialized and stored into the network namespace structure. The common part of the fib rules is namespace aware, so it is quite easy to retrieve the network namespace from the rules and use it in the different callbacks. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] fib6 rule - dynamic allocation of the rules struct opsDaniel Lezcano
The fib6_rules_ops structure is dynamically allocated, so that allows to make several instances of it per network namespace. The global static fib6_rules_ops structure is renamed to fib6_rules_ops_template in order to quickly memcopy it for the structure initialization. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] ip6_fib - clean node use namespaceBenjamin Thery
The fib6_clean_node function should have the network namespace it is working on. The fib6_cleaner_t structure is extended with the network namespace field to be passed to the fib6_clean_node function. The different functions calling the fib6_clean_node function are extended with the netns parameter when needed to propagate the netns pointer. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] ip6_fib - gc timer per namespaceDaniel Lezcano
Move the timer initialization at the network namespace creation and store the network namespace in the timer argument. That enables multiple timers (one per network namespace) to do garbage collecting. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] ip6_fib - dynamically allocate gc-timerDaniel Lezcano
The ip6_fib_timer gc timer is dynamically allocated and initialized in the ip6 fib init function. There are no more references to a static global variable. That will allow to make multiple instance of the garbage collecting timer and make them per namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] ip6_fib - add net to gc timer parameterDaniel Lezcano
The fib tables are now relative to the network namespace. When the garbage collector timer expires, we must have a network namespace parameter in order to retrieve the tables. For now this is the init_net, but we should be able to have a timer per namespace and use the timer callback parameter to pass the network namespace from the expired timer. The timer callback, fib6_run_gc, is actually used to be called synchronously by some functions and asynchronously when the timer expires. When the timer expires, the delay specified for fib6_run_gc parameter is always zero. So, I changed fib6_run_gc to not be a timer callback but a function called by the timer callback and I added a timer callback where its work is just to retrieve from the data arg of the timer the network namespace and call fib6_run_gc with zero expiring time and the network namespace parameters. That makes the code cleaner for the fib6_run_gc callers. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] ip6_fib - fib6_clean_all handle several network namespacesDaniel Lezcano
The function fib6_clean_all takes the network namespace as parameter. That allows to flush the routes related to a specific network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] ip6_fib - make it per network namespaceDaniel Lezcano
The fib table for ipv6 are moved to the network namespace structure. All references to them are made relatively to the network namespace. All external calls to the ip6_fib functions taking the network namespace parameter are made using the init_net variable, so the ip6_fib engine is ready for the namespaces but the callers not yet. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NETNS][IPV6] ip6_fib - dynamically allocate the fib tablesDaniel Lezcano
This patch changes the fib6 tables to be dynamically allocated. That provides the ability to make several instances of them when a new network namespace is created. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[IPV6] MCAST: Use standard path for sending MLD/MLDv2 messages.YOSHIFUJI Hideaki
This is changing the paths for sending MLD/MLDv2 messages from dev_queue_xmit() to standard dst_output(). Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[IPV6]: Make ndisc_dst_alloc() common for later use.YOSHIFUJI Hideaki
For later use, this patch is renaming ndisc_dst_alloc() (and related function/structures) to icmp6_dst_alloc() (and so on). This patch also removing unused function- pointer argument for it. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[IPV6]: Make ndisc_flow_init() common for later use.YOSHIFUJI Hideaki
For later use, this patch is renaming ndisc_flow_init() to icmpv6_flow_init() and putting it in common place. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[IPV6] ADDRCONF: Convert ipv6_get_saddr() to ipv6_dev_get_saddr().YOSHIFUJI Hideaki
Since most users of ipv6_get_saddr() pass non-NULL as dst argument, use ipv6_dev_get_saddr() directly. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[IPV6] SYSCTL: complete initialization for sysctl table in subsystem code.YOSHIFUJI Hideaki
Move initialization bits for subsystem sysctl tables to appropriate functions. - route - icmp Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[IPV6]: Move packet_type{} related bits to af_inet6.c.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[IPV6] UDP: Rename IPv6 UDP files.YOSHIFUJI Hideaki
Rename net/ipv6/udp.c to net/ipv6/udp_ipv6.c Rename net/ipv6/udplite.c to net/ipv6/udplite_ipv6.c. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[IPV4] UDP: Move IPv4-specific bits to other file.YOSHIFUJI Hideaki
Move IPv4-specific UDP bits from net/ipv4/udp.c into (new) net/ipv4/udp_ipv4.c. Rename net/ipv4/udplite.c to net/ipv4/udplite_ipv4.c. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[IPV4]: Fix size description of CONFIG_INET.YOSHIFUJI Hideaki
CONFIG_INET now enlarges about 400KB, not 140KB. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[UDP]: Allow users to configure UDP-Lite.YOSHIFUJI Hideaki
Let's give users an option for disabling UDP-Lite (~4K). old: | text data bss dec hex filename | 286498 12432 6072 305002 4a76a net/ipv4/built-in.o | 193830 8192 3204 205226 321aa net/ipv6/ipv6.o new (without UDP-Lite): | text data bss dec hex filename | 284086 12136 5432 301654 49a56 net/ipv4/built-in.o | 191835 7832 3076 202743 317f7 net/ipv6/ipv6.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[TCP]: Add IPv6 support to TCP SYN cookiesGlenn Griffin
Updated to incorporate Eric's suggestion of using a per cpu buffer rather than allocating on the stack. Just a two line change, but will resend in it's entirety. Signed-off-by: Glenn Griffin <ggriffin.kernel@gmail.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[TCP]: lower stack usage in cookie_hash() functionEric Dumazet
400 bytes allocated on stack might be a litle bit too much. Using a per_cpu var is more friendly. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-03[ARP]: Introduce the arp_hdr_len helper.Pavel Emelyanov
There are some place, that calculate the ARP header length. These calculations are correct, but a) some operate with "magic" constants, b) enlarge the code length (sometimes at the cost of coding style), c) are not informative from the first glance. The proposal is to introduce a helper, that includes all the good sides of these calculations. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[BLUETOOTH]: l2cap info_timer delete fix in hci_conn_delDave Young
When the l2cap info_timer is active the info_state will be set to L2CAP_INFO_FEAT_MASK_REQ_SENT, and it will be unset after the timer is deleted or timeout triggered. Here in l2cap_conn_del only call del_timer_sync when the info_state is set to L2CAP_INFO_FEAT_MASK_REQ_SENT. Signed-off-by: Dave Young <hidave.darkstar@gmail.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[NET]: Fix race in generic address resolution.Frank Blaschka
neigh_update sends skb from neigh->arp_queue while neigh_timer_handler has increased skbs refcount and calls solicit with the skb. neigh_timer_handler should not increase skbs refcount but make a copy of the skb and do solicit with the copy. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03iucv: fix build error on !SMPHeiko Carstens
Since a5fbb6d1064be885d2a6b82f625186753cf74848 "KVM: fix !SMP build error" smp_call_function isn't a define anymore that folds into nothing but a define that calls up_smp_call_function with all parameters. Hence we cannot #ifdef out the unused code anymore... This seems to be the preferred method, so do this for s390 as well. net/iucv/iucv.c: In function 'iucv_cleanup_queue': net/iucv/iucv.c:657: error: '__iucv_cleanup_queue' undeclared Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net> Signed-off-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[TCP]: Must count fack_count also when skippingIlpo Järvinen
It makes fackets_out to grow too slowly compared with the real write queue. This shouldn't cause those BUG_TRAP(packets <= tp->packets_out) to trigger but how knows how such inconsistent fackets_out affects here and there around TCP when everything is nowadays assuming accurate fackets_out. So lets see if this silences them all. Reported by Guillaume Chazarain <guichaz@gmail.com>. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03ipv6: fix inet6_init/icmpv6_cleanup sections mismatchAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[TCP]: Merge exit paths in tcp_v4_conn_request.Denis V. Lunev
Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[SCTP]: seq_printf format warning. (fixed)Denis V. Lunev
sctp_association->hbinterval is unsigned long. Replace %8d with %8lu. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-03[IPV4]: skb->dst can't be NULL in ip_options_echo.Denis V. Lunev
ip_options_echo is called on the packet input path after the initial routing. The dst entry on the packet is cleared only in the several very specific places and immidiately assigned back (may be new). Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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