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2006-03-20[NET] sem2mutex: net/Arjan van de Ven
Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NET]: dev_put/dev_hold cleanupStephen Hemminger
Get rid of the old __dev_put macro that is just a hold over from pre 2.6 kernel. And turn dev_hold into an inline instead of a macro. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP] options: Make dccp_insert_options & friends yell on errorArnaldo Carvalho de Melo
And not the silly LIMIT_NETDEBUG and silently return without inserting the option requested. Also drop some old debugging messages associated to option insertion. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Remove leftover dccp_send_response prototypeArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: ditch dccp_v[46]_ctl_send_ackArnaldo Carvalho de Melo
Merging it with its only user: dccp_v[46]_reqsk_send_ack. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Use sk->sk_prot->max_header consistently for non-data packetsArnaldo Carvalho de Melo
Using this also provides opportunities for introducing inet_csk_alloc_skb that would call alloc_skb, account it to the sock and skb_reserve(max_header), but I'll leave this for later, for now using sk_prot->max_header consistently is enough. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP] options: Fix handling of ackvecs in DATA packetsArnaldo Carvalho de Melo
I.e. they should be just ignored, but we have to use 'break', not 'continue', as we have to possibly reset the mandatory flag. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[ATM]: Fix build after neigh->parms->neigh_destructor change.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NET]: use fget_light() in net/socket.cBenjamin LaHaise
Here's an updated copy of the patch to use fget_light in net/socket.c. Rerunning the tests show a drop of ~80Mbit/s on average, which looks bad until you see the drop in cpu usage from ~89% to ~82%. That will get fixed in another patch... Before: max 8113.70, min 8026.32, avg 8072.34 87380 16384 16384 10.01 8045.55 87.11 87.11 1.774 1.774 87380 16384 16384 10.01 8065.14 90.86 90.86 1.846 1.846 87380 16384 16384 10.00 8077.76 89.85 89.85 1.822 1.822 87380 16384 16384 10.00 8026.32 89.80 89.80 1.833 1.833 87380 16384 16384 10.01 8108.59 89.81 89.81 1.815 1.815 87380 16384 16384 10.01 8034.53 89.01 89.01 1.815 1.815 87380 16384 16384 10.00 8113.70 90.45 90.45 1.827 1.827 87380 16384 16384 10.00 8111.37 89.90 89.90 1.816 1.816 87380 16384 16384 10.01 8077.75 87.96 87.96 1.784 1.784 87380 16384 16384 10.00 8062.70 90.25 90.25 1.834 1.834 After: max 8035.81, min 7963.69, avg 7998.14 87380 16384 16384 10.01 8000.93 82.11 82.11 1.682 1.682 87380 16384 16384 10.01 8016.17 83.67 83.67 1.710 1.710 87380 16384 16384 10.01 7963.69 83.47 83.47 1.717 1.717 87380 16384 16384 10.01 8014.35 81.71 81.71 1.671 1.671 87380 16384 16384 10.00 7967.68 83.41 83.41 1.715 1.715 87380 16384 16384 10.00 7995.22 81.00 81.00 1.660 1.660 87380 16384 16384 10.00 8002.61 83.90 83.90 1.718 1.718 87380 16384 16384 10.00 8035.81 81.71 81.71 1.666 1.666 87380 16384 16384 10.01 8005.36 82.56 82.56 1.690 1.690 87380 16384 16384 10.00 7979.61 82.50 82.50 1.694 1.694 Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NET]: minor net_rx_action optimizationStephen Hemminger
The functions list_del followed by list_add_tail is equivalent to the existing inline list_move_tail. list_move_tail avoids unnecessary _LIST_POISON. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NET]: Move destructor from neigh->ops to neigh_paramsMichael S. Tsirkin
struct neigh_ops currently has a destructor field, which no in-kernel drivers outside of infiniband use. The infiniband/ulp/ipoib in-tree driver stashes some info in the neighbour structure (the results of the second-stage lookup from ARP results to real link-level path), and it uses neigh->ops->destructor to get a callback so it can clean up this extra info when a neighbour is freed. We've run into problems with this: since the destructor is in an ops field that is shared between neighbours that may belong to different net devices, there's no way to set/clear it safely. The following patch moves this field to neigh_parms where it can be safely set, together with its twin neigh_setup. Two additional patches in the patch series update ipoib to use this new interface. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Updates version.Luiz Capitulino
Due to the thread's lock changes, we're at a new version now. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Removes thread_{un,}lock() macros.Luiz Capitulino
As suggested by Arnaldo, this patch replaces the thread_lock()/thread_unlock() by directly calls to mutex_lock()/mutex_unlock(). This change makes the code a bit more readable, and the direct calls are used everywhere in the kernel. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Convert thread lock to mutexes.Luiz Capitulino
pktgen's thread semaphores are strict mutexes, convert them to the mutex implementation. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NET]: Convert RTNL to mutex.Stephen Hemminger
This patch turns the RTNL from a semaphore to a new 2.6.16 mutex and gets rid of some of the leftover legacy. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[IPSEC] xfrm_user: Kill PAGE_SIZE check in verify_sec_ctx_len()David S. Miller
First, it warns when PAGE_SIZE >= 64K because the ctx_len field is 16-bits. Secondly, if there are any real length limitations it can be verified by the security layer security_xfrm_state_alloc() call. Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[TCP] H-TCP: Better time accountingBaruch Even
Instead of estimating the time since the last congestion event, count it directly. Signed-off-by: Baruch Even <baruch@ev-en.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[TCP] H-TCP: Account for delayed-ACKsBaruch Even
Account for delayed-ACKs in H-TCP. Delayed-ACKs cause H-TCP to be less aggressive than its design calls for. It is especially true when the receiver is a Linux machine where the average delayed ack is over 3 packets with values of 7 not unheard of. Signed-off-By: Baruch Even <baruch@ev-en.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[TCP] H-TCP: Use msecs_to_jiffiesBaruch Even
Use functions to calculate jiffies from milliseconds and not the old, crude method of dividing HZ by a value. Ensures more accurate values even in the face of strange HZ values. Signed-off-By: Baruch Even <baruch@ev-en.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Updates version.Luiz Capitulino
With all the previous changes, we're at a new version now. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Ports if_list to the in-kernel implementation.Luiz Capitulino
This patch ports the per-thread interface list list to the in-kernel linked list implementation. In the general, the resulting code is a bit simpler. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Fix Initialization fail leak.Luiz Capitulino
Even if pktgen's thread initialization fails for all CPUs, the module will be successfully loaded. This patch changes that behaivor, by returning an error on module load time, and also freeing all the resources allocated. It also prints a warning if a thread initialization has failed. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Fix kernel_thread() fail leak.Luiz Capitulino
Free all the alocated resources if kernel_thread() call fails. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Ports thread list to Kernel list implementation.Luiz Capitulino
The final result is a simpler and smaller code. Note that I'm adding a new member in the struct pktgen_thread called 'removed'. The reason is that I didn't find a better wait condition to be used in the place of the replaced one. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[PKTGEN]: Lindent run.Luiz Capitulino
Lindet run, with some fixes made by hand. Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP] options: Fix some aspects of mandatory option processingArnaldo Carvalho de Melo
According to dccp draft (draft-ietf-dccp-spec-13.txt) section 5.8.2 (Mandatory Option) the following patch correct the handling of the following cases: 1) "... and any Mandatory options received on DCCP-Data packets MUST be ignored." 2) "The connection is in error and should be reset with Reset Code 5, ... if option O is absent (Mandatory was the last byte of the option list), or if option O equals Mandatory." Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP] ccid2: coding style cleanupsArnaldo Carvalho de Melo
No changes in the logic where made. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP] ipv6: cleanupsArnaldo Carvalho de Melo
No changes in the logic were made, just removing trailing whitespaces, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[ICSK]: Introduce inet_csk_ctl_sock_createArnaldo Carvalho de Melo
Consolidating open coded sequences in tcp and dccp, v4 and v6. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP] ipv6: Add missing ipv6 control socketArnaldo Carvalho de Melo
I guess I forgot to add it, nah, now it just works: 18:04:33.274066 IP6 ::1.1476 > ::1.5001: request (service=0) 18:04:33.334482 IP6 ::1.5001 > ::1.1476: reset (code=bad_service_code) Ditched IP_DCCP_UNLOAD_HACK, as now we would have to do it for both IPv6 and IPv4, so I'll come up with another way for freeing the control sockets in upcoming changesets. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Uninline some functionsArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP] ipv4: make struct dccp_v4_prot staticAdrian Bunk
There's no reason for struct dccp_v4_prot being global. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[IPV6]: Fix some code/comment formatting in ip6_dst_output().David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[IPV4]: fib_trie stats fixRobert Olsson
fib_triestats has been buggy and caused oopses some platforms as openwrt. The patch below should cure those problems. Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[IPV4]: fib_trie initialzation fixRobert Olsson
In some kernel configs /proc functions seems to be accessed before the trie is initialized. The patch below checks for this. Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[TCP] mtu probing: move tcp-specific data out of inet_connection_sockJohn Heffner
This moves some TCP-specific MTU probing state out of inet_connection_sock back to tcp_sock. Signed-off-by: John Heffner <jheffner@psc.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[AF_UNIX]: use shift instead of integer divisionBenjamin LaHaise
The patch below replaces a divide by 2 with a shift -- sk_sndbuf is an integer, so gcc emits an idiv, which takes 10x longer than a shift by 1. This improves af_unix bandwidth by ~6-10K/s. Also, tidy up the comment to fit in 80 columns while we're at it. Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NET]: Uninline kfree_skb and allow NULL argumentJörn Engel
o Uninline kfree_skb, which saves some 15k of object code on my notebook. o Allow kfree_skb to be called with a NULL argument. Subsequent patches can remove conditional from drivers and further reduce source and object size. Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[LLC]: Fix sap refcountingArnaldo Carvalho de Melo
Thanks to Leslie Harlley Watter <leslie@watter.org> for reporting the problem an testing this patch. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[LLC]: Replace __inline__ with inlineArnaldo Carvalho de Melo
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[LLC]: Fix struct proto .nameArnaldo Carvalho de Melo
Cut'n'paste error from ddp_proto. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NET] pktgen: Fix races between control/worker threads.Arthur Kepner
There's a race in pktgen which can lead to a double free of a pktgen_dev's skb. If a worker thread is in the midst of doing fill_packet(), and the controlling thread gets a "stop" message, the already freed skb can be freed once again in pktgen_stop_device(). This patch gives all responsibility for cleaning up a pktgen_dev's skb to the associated worker thread. Signed-off-by: Arthur Kepner <akepner@sgi.com> Acked-by: Robert Olsson <Robert.Olsson@data.slu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Move the IPv4 specific bits from proto.c to ipv4.cArnaldo Carvalho de Melo
With this patch in place we can break down the complexity by better compartmentalizing the code that is common to ipv6 and ipv4. Now we have these modules: Module Size Used by dccp_diag 1344 0 inet_diag 9448 1 dccp_diag dccp_ccid3 15856 0 dccp_tfrc_lib 12320 1 dccp_ccid3 dccp_ccid2 5764 0 dccp_ipv4 16996 2 dccp 48208 4 dccp_diag,dccp_ccid3,dccp_ccid2,dccp_ipv4 dccp_ipv6 still requires dccp_ipv4 due to dccp_ipv6_mapped, that is the next target to work on the "hey, ipv4 is legacy, I only want ipv6 dude!" direction. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Rename init_dccp_v4_mibs to dccp_mib_initArnaldo Carvalho de Melo
And introduce dccp_mib_exit grouping previously open coded sequence. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Move dccp_hashinfo from ipv4.c to the coreArnaldo Carvalho de Melo
As it is used by both ipv4 and ipv6. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Dont use dccp_v4_checksum in dccp_make_responseArnaldo Carvalho de Melo
dccp_make_response is shared by ipv4/6 and the ipv6 code was recalculating the checksum, not good, so move the dccp_v4_checksum call to dccp_v4_send_response. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Move dccp_[un]hash from ipv4.c to the coreArnaldo Carvalho de Melo
As this is used by both ipv4 and ipv6 and is not ipv4 specific. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Move dccp_v4_{init,destroy}_sock to the coreArnaldo Carvalho de Melo
Removing one more ipv6 uses ipv4 stuff case in dccp land. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP]: Generalize dccp_v4_send_resetArnaldo Carvalho de Melo
Renaming it to dccp_send_reset and moving it from the ipv4 specific code to the core dccp code. This fixes some bugs in IPV6 where timers would send v4 resets, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[DCCP] feat: Introduce sysctls for the default featuresArnaldo Carvalho de Melo
[root@qemu ~]# for a in /proc/sys/net/dccp/default/* ; do echo $a ; cat $a ; done /proc/sys/net/dccp/default/ack_ratio 2 /proc/sys/net/dccp/default/rx_ccid 3 /proc/sys/net/dccp/default/send_ackvec 1 /proc/sys/net/dccp/default/send_ndp 1 /proc/sys/net/dccp/default/seq_window 100 /proc/sys/net/dccp/default/tx_ccid 3 [root@qemu ~]# So if wanting to test ccid3 as the tx CCID one can just do: [root@qemu ~]# echo 3 > /proc/sys/net/dccp/default/tx_ccid [root@qemu ~]# echo 2 > /proc/sys/net/dccp/default/rx_ccid [root@qemu ~]# cat /proc/sys/net/dccp/default/[tr]x_ccid 2 3 [root@qemu ~]# Of course we also need the setsockopt for each app to tell its preferences, but for testing or defining something other than CCID2 as the default for apps that don't explicitely set their preference the sysctl interface is handy. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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