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* netns: keep vlan slaves on master netns moveDavid Lamparter2010-09-172-0/+8
| | | | | | | | | | | | | | | | previously, if a vlan master device was moved from one network namespace to another, all 802.1q and macvlan slaves were deleted. we can use dev->reg_state to figure out whether dev_change_net_namespace is happening, since that won't set dev->reg_state NETREG_UNREGISTERING. so, this changes 8021q and macvlan to ignore NETDEV_UNREGISTER when reg_state is not NETREG_UNREGISTERING. Signed-off-by: David Lamparter <equinox@diac24.net> Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Daniel Lezcano <daniel.lezcano@free.fr> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* ethtool: change ethtool_set_gro() to use ethtool_op_get_rx_csumEric Dumazet2010-09-171-2/+5
| | | | | | | | | | | | | | | To be able to switch on GRO on a device, ethtool_set_gro() checks this device provides a get_rx_csum() method. Some devices dont provide this method, while they do support RX checksumming. This patch allows bonding to support GRO : ethtool -K bond0 gro on Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ip6tnl: get rid of ip6_tnl_lockEric Dumazet2010-09-161-30/+28
| | | | | | | | | | | As RTNL is held while doing tunnels inserts and deletes, we can remove ip6_tnl_lock spinlock. My initial RCU conversion was conservative and converted the rwlock to spinlock, with no RTNL requirement. Use appropriate rcu annotations and modern lockdep checks as well. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: include inetdevice.h for rcu_dereference_raw api changeStephen Rothwell2010-09-161-0/+1
| | | | | | | rcu_dereference_raw() now needs to know the type of its argument. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: enable GRO by default for vlan devicesBrandon Philips2010-09-151-0/+5
| | | | | | | | | | | | | Currently vlan devices don't have GRO by default as none of the Ethernet drivers add NETIF_F_GRO to their vlan_features. As GRO is a software feature add GRO to dev->vlan_features in register_netdevice() and let vlan_dev_init() take care that it gets enabled only when dev->features has NETIF_F_GRO too. Signed-off-by: Brandon Philips <bphilips@suse.de> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4: ip_ptr cleanupsEric Dumazet2010-09-154-5/+5
| | | | | | | | | dev->ip_ptr is protected by rtnl and rcu. Yet some places dont use appropriate primitives and/or locking rules. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* phonet: Fix build warning.David S. Miller2010-09-151-1/+2
| | | | | | | net/phonet/socket.c: In function ‘pn_res_seq_show’: net/phonet/socket.c:726: warning: format ‘%02X’ expects type ‘unsigned int’, but argument 3 has type ‘long int’ Signed-off-by: David S. Miller <davem@davemloft.net>
* Phonet: list subscribed resources via proc_fsRémi Denis-Courmont2010-09-152-0/+98
| | | | | Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Phonet: look up the resource routing table when forwardingRémi Denis-Courmont2010-09-151-0/+17
| | | | | Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Phonet: hook resource routing to userspace via ioctl()'sRémi Denis-Courmont2010-09-152-0/+14
| | | | | | | | | | I wish we could use something cleaner, such as bind(). But that would not work since resource subscription is orthogonal/in addition to the normal object ID allocated via bind(). This is similar to multicasting which also uses ioctl()'s. Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Phonet: resource routing backendRémi Denis-Courmont2010-09-151-0/+88
| | | | | | | | | | | | | | | | When both destination device and object are nul, Phonet routes the packet according to the resource field. In fact, this is the most common pattern when sending Phonet "request" packets. In this case, the packet is delivered to whichever endpoint (socket) has registered the resource. This adds a new table so that Linux processes can register their Phonet sockets to Phonet resources, if they have adequate privileges. (Namespace support is not implemented at the moment.) Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Phonet: remove dangling pipe if an endpoint is closed earlyRémi Denis-Courmont2010-09-151-1/+26
| | | | | | | | | | | | | | | | Closing a pipe endpoint is not normally allowed by the Phonet pipe, other than as a side after-effect of removing the pipe between two endpoints. But there is no way to prevent Linux userspace processes from being killed or suffering from bugs, so this can still happen. We might as well forcefully close Phonet pipe endpoints then. The cellular modem supports only a few existing pipes at a time. So we really should not leak them. This change instructs the modem to destroy the pipe if either of the pipe's endpoint (Linux socket) is closed too early. Signed-off-by: Rémi Denis-Courmont <remi.denis-courmont@nokia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'dccp' of git://eden-feed.erg.abdn.ac.uk/net-next-2.6David S. Miller2010-09-154-119/+73
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| * dccp ccid-3: Simplify and consolidate tx_parse_optionsGerrit Renker2010-09-152-46/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This simplifies and consolidates the TX option-parsing code: 1. The Loss Intervals option is not currently used, so dead code related to this option is removed. I am aware of no plans to support the option, but if someone wants to implement it (e.g. for inter-op tests), it is better to start afresh than having to also update currently unused code. 2. The Loss Event and Receive Rate options have a lot of code in common (both are 32 bit, both have same length etc.), so this is consolidated. 3. The test against GSR is not necessary, because - on first loading CCID3, ccid_new() zeroes out all fields in the socket; - ccid3_hc_tx_packet_recv() treats 0 and ~0U equivalently, due to pinv = opt_recv->ccid3or_loss_event_rate; if (pinv == ~0U || pinv == 0) hctx->p = 0; - as a result, the sequence number field is removed from opt_recv. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
| * dccp ccid-3: remove buggy RTT-sampling history lookupGerrit Renker2010-09-153-57/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes the RTT-sampling function tfrc_tx_hist_rtt(), since 1. it suffered from complex passing of return values (the return value both indicated successful lookup while the value doubled as RTT sample); 2. when for some odd reason the sample value equalled 0, this triggered a bug warning about "bogus Ack", due to the ambiguity of the return value; 3. on a passive host which has not sent anything the TX history is empty and thus will lead to unwanted "bogus Ack" warnings such as ccid3_hc_tx_packet_recv: server(e7b7d518): DATAACK with bogus ACK-28197148 ccid3_hc_tx_packet_recv: server(e7b7d518): DATAACK with bogus ACK-26641606. The fix is to replace the implicit encoding by performing the steps manually. Furthermore, the "bogus Ack" warning has been removed, since it can actually be triggered due to several reasons (network reordering, old packet, (3) above), hence it is not very useful. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
| * dccp ccid-3: A lower bound for the inter-packet scheduling algorithmGerrit Renker2010-09-152-16/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a subtle bug in the calculation of the inter-packet gap and shows that t_delta, as it is currently used, is not needed. The algorithm from RFC 5348, 8.3 below continually computes a send time t_nom, which is initialised with the current time t_now; t_gran = 1E6 / HZ specifies the scheduling granularity, s the packet size, and X the sending rate: t_distance = t_nom - t_now; // in microseconds t_delta = min(t_ipi, t_gran) / 2; // `delta' parameter in microseconds if (t_distance >= t_delta) { reschedule after (t_distance / 1000) milliseconds; } else { t_ipi = s / X; // inter-packet interval in usec t_nom += t_ipi; // compute the next send time send packet now; } Problem: -------- Rescheduling requires a conversion into milliseconds (sk_reset_timer()). The highest jiffy resolution with HZ=1000 is 1 millisecond, so using a higher granularity does not make much sense here. As a consequence, values of t_distance < 1000 are truncated to 0. This issue has so far been resolved by using instead if (t_distance >= t_delta + 1000) reschedule after (t_distance / 1000) milliseconds; This is unnecessarily large, a lower bound is t_delta' = max(t_delta, 1000). And it implies a further simplification: a) when HZ >= 500, then t_delta <= t_gran/2 = 10^6/(2*HZ) <= 1000, so that t_delta' = MAX(1000, t_delta) = 1000 (constant value); b) when HZ < 500, then t_delta = 1/2*MIN(rtt, t_ipi, t_gran) <= t_gran/2, so that 1000 <= t_delta' <= t_gran/2. The maximum error of using a constant t_delta in (b) is less than half a jiffy. Fix: ---- The patch replaces t_delta with a constant, whose value depends on CONFIG_HZ, changing the above algorithm to: if (t_distance >= t_delta') reschedule after (t_distance / 1000) milliseconds; where t_delta' = 10^6/(2*HZ) if HZ < 500, and t_delta' = 1000 otherwise. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
* | irda/irnet: use noop_llseekArnd Bergmann2010-09-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | There may be applications trying to seek on the irnet character device, so we should use noop_llseek to avoid returning an error when the default llseek changes to no_llseek. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* | sit: get rid of ipip6_lockEric Dumazet2010-09-151-33/+31
| | | | | | | | | | | | | | | | | | | | | | As RTNL is held while doing tunnels inserts and deletes, we can remove ipip6_lock spinlock. My initial RCU conversion was conservative and converted the rwlock to spinlock, with no RTNL requirement. Use appropriate rcu annotations and modern lockdep checks as well. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | gre: get rid of ipgre_lockEric Dumazet2010-09-151-29/+32
| | | | | | | | | | | | | | | | | | | | | | As RTNL is held while doing tunnels inserts and deletes, we can remove ipgre_lock spinlock. My initial RCU conversion was conservative and converted the rwlock to spinlock, with no RTNL requirement. Use appropriate rcu annotations and modern lockdep checks as well. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ipip: get rid of ipip_lockEric Dumazet2010-09-151-33/+34
| | | | | | | | | | | | | | | | | | | | | | As RTNL is held while doing tunnels inserts and deletes, we can remove ipip_lock spinlock. My initial RCU conversion was conservative and converted the rwlock to spinlock, with no RTNL requirement. Use appropriate rcu annotations and modern lockdep checks as well. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ethtool: Remove unimplemented flow specification typesBen Hutchings2010-09-151-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct ethtool_rawip4_spec and struct ethtool_ether_spec are neither commented nor used by any driver, so remove them. Adjust padding in the user-visible unions that included these structures. Fix references to struct ethtool_rawip4_spec in ethtool_get_rx_ntuple(), which should use struct ethtool_usrip4_spec. struct ethtool_usrip4_spec cannot hold IPv6 host addresses and there is no separate structure that can, so remove ETH_RX_NFC_IP6 and the reference to it in niu. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | X.25 remove bkl in connectandrew hendry2010-09-141-2/+0
| | | | | | | | | | | | | | Connect already has socket locking. Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | X.25 remove bkl in acceptAndrew Hendry2010-09-141-3/+5
| | | | | | | | | | | | | | | | | | Accept already has socket locking. [ Extend socket locking over TCP_LISTEN state test. -DaveM ] Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | X.25 remove bkl in bindandrew hendry2010-09-141-2/+2
| | | | | | | | | | | | | | Accept updates socket values in 3 lines so wrapped with lock_sock. Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | X.25 remove bkl in listenandrew hendry2010-09-141-2/+2
| | | | | | | | | | | | | | Listen updates socket values and needs lock_sock. Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/irda: Use static const char * const where possibleJoe Perches2010-09-141-1/+1
|/ | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow: better memory managementEric Dumazet2010-09-131-36/+42
| | | | | | | | | | | | | | | Allocate hash tables for every online cpus, not every possible ones. NUMA aware allocations. Dont use a full page on arches where PAGE_SIZE > 1024*sizeof(void *) misc: __percpu , __read_mostly, __cpuinit annotations flow_compare_t is just an "unsigned long" Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* pkt_sched: remov unnecessary bh_disablestephen hemminger2010-09-101-2/+2
| | | | | | | | Now that est_tree_lock is acquired with BH protection, the other call is unnecessary. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* fib: cleanupsEric Dumazet2010-09-101-32/+23
| | | | | | | | | | | Use rcu_dereference_rtnl() helper Change hard coded constants in fib_flag_trans() 7 -> RTN_UNREACHABLE 8 -> RTN_PROHIBIT Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2010-09-0942-258/+342
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/mac80211/main.c
| * sctp: fix test for end of loopJoe Perches2010-09-091-23/+23
| | | | | | | | | | | | | | | | | | | | Add a list_has_sctp_addr function to simplify loop Based on a patches by Dan Carpenter and David Miller Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge branch 'master' of ↵David S. Miller2010-09-0823-274/+919
| |\ | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
| | * Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-09-0714-37/+91
| | |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits) pkt_sched: Fix lockdep warning on est_tree_lock in gen_estimator ipvs: avoid oops for passive FTP Revert "sky2: don't do GRO on second port" gro: fix different skb headrooms bridge: Clear INET control block of SKBs passed into ip_fragment(). 3c59x: Remove incorrect locking; correct documented lock hierarchy sky2: don't do GRO on second port ipv4: minor fix about RPF in help of Kconfig xfrm_user: avoid a warning with some compiler net/sched/sch_hfsc.c: initialize parent's cl_cfmin properly in init_vf() pxa168_eth: fix a mdiobus leak net sched: fix kernel leak in act_police vhost: stop worker only if created MAINTAINERS: Add ehea driver as Supported ath9k_hw: fix parsing of HT40 5 GHz CTLs ath9k_hw: Fix EEPROM uncompress block reading on AR9003 wireless: register wiphy rfkill w/o holding cfg80211_mutex netlink: Make NETLINK_USERSOCK work again. irda: Correctly clean up self->ias_obj on irda_bind() failure. wireless extensions: fix kernel heap content leak ...
| | * \ Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-08-287-32/+21
| | |\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: net/ipv4: Eliminate kstrdup memory leak net/caif/cfrfml.c: use asm/unaligned.h ax25: missplaced sock_put(sk) qlge: reset the chip before freeing the buffers l2tp: test for ethernet header in l2tp_eth_dev_recv() tcp: select(writefds) don't hang up when a peer close connection tcp: fix three tcp sysctls tuning tcp: Combat per-cpu skew in orphan tests. pxa168_eth: silence gcc warnings pxa168_eth: update call to phy_mii_ioctl() pxa168_eth: fix error handling in prope pxa168_eth: remove unneeded null check phylib: Fix race between returning phydev and calling adjust_link caif-driver: add HAS_DMA dependency 3c59x: Fix deadlock between boomerang_interrupt and boomerang_start_tx qlcnic: fix poll implementation netxen: fix poll implementation bridge: netfilter: fix a memory leak
| | * \ \ Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-08-237-33/+31
| | |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits) netfilter: fix CONFIG_COMPAT support isdn/avm: fix build when PCMCIA is not enabled header: fix broken headers for user space e1000e: don't check for alternate MAC addr on parts that don't support it e1000e: disable ASPM L1 on 82573 ll_temac: Fix poll implementation netxen: fix a race in netxen_nic_get_stats() qlnic: fix a race in qlcnic_get_stats() irda: fix a race in irlan_eth_xmit() net: sh_eth: remove unused variable netxen: update version 4.0.74 netxen: fix inconsistent lock state vlan: Match underlying dev carrier on vlan add ibmveth: Fix opps during MTU change on an active device ehea: Fix synchronization between HW and SW send queue bnx2x: Update bnx2x version to 1.52.53-4 bnx2x: Fix PHY locking problem rds: fix a leak of kernel memory netlink: fix compat recvmsg netfilter: fix userspace header warning ...
| | * \ \ \ Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds2010-08-184-15/+46
| | |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: Fix an Oops in the NFSv4 atomic open code NFS: Fix the selection of security flavours in Kconfig NFS: fix the return value of nfs_file_fsync() rpcrdma: Fix SQ size calculation when memreg is FRMR xprtrdma: Do not truncate iova_start values in frmr registrations. nfs: Remove redundant NULL check upon kfree() nfs: Add "lookupcache" to displayed mount options NFS: allow close-to-open cache semantics to apply to root of NFS filesystem SUNRPC: fix NFS client over TCP hangs due to packet loss (Bug 16494)
| | | * | | | NFS: Fix the selection of security flavours in KconfigTrond Myklebust2010-08-171-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Randy Dunlap reports: ERROR: "svc_gss_principal" [fs/nfs/nfs.ko] undefined! because in fs/nfs/Kconfig, NFS_V4 selects RPCSEC_GSS_KRB5 and/or in fs/nfsd/Kconfig, NFSD_V4 selects RPCSEC_GSS_KRB5. RPCSEC_GSS_KRB5 does 5 selects, but none of these is enforced/followed by the fs/nfs[d]/Kconfig configs: select SUNRPC_GSS select CRYPTO select CRYPTO_MD5 select CRYPTO_DES select CRYPTO_CBC Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: J. Bruce Fields <bfields@fieldses.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | | * | | | rpcrdma: Fix SQ size calculation when memreg is FRMRTom Tucker2010-08-112-4/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates the computation to include the worst case situation where three FRMR are required to map a single RPC REQ. Signed-off-by: Tom Tucker <tom@ogc.us> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | | * | | | xprtrdma: Do not truncate iova_start values in frmr registrations.Steve Wise2010-08-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A bad cast causes the iova_start, which in this case is a 64b DMA bus address, to be truncated on 32b systems. This breaks frmrs on 32b systems. No cast is needed. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | | * | | | SUNRPC: fix NFS client over TCP hangs due to packet loss (Bug 16494)Andy Chittenden2010-08-101-6/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When reusing a TCP connection, ensure that it's aborted if a previous shutdown attempt has been made on that connection so that the RPC over TCP recovery mechanism succeeds. Signed-off-by: Andy Chittenden <andyc.bluearc@gmail.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * | | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-08-1712-57/+59
| | |\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: net: Fix a memmove bug in dev_gro_receive() net sched: fix some kernel memory leaks netfilter: {ip,ip6,arp}_tables: avoid lockdep false positive Revert "netlink: netlink_recvmsg() fix" ipv6: remove sysctl jiffies conversion on gc_elasticity and min_adv_mss xfrm: Use GFP_ATOMIC in xfrm_compile_policy ath5k: disable ASPM L0s for all cards ath9k_htc: load proper firmware for device ID 7015 wl1251: fix trigger scan timeout usage ath9k_htc: Fix disconnect issue in HT40 mode. ath9k_htc: fix panic on packet injection using airbase-ng tool. ipw2100: register pm_qos request before registering pci driver
| * | | | | | | udp: add rehash on connect()Eric Dumazet2010-09-084-2/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 30fff923 introduced in linux-2.6.33 (udp: bind() optimisation) added a secondary hash on UDP, hashed on (local addr, local port). Problem is that following sequence : fd = socket(...) connect(fd, &remote, ...) not only selects remote end point (address and port), but also sets local address, while UDP stack stored in secondary hash table the socket while its local address was INADDR_ANY (or ipv6 equivalent) Sequence is : - autobind() : choose a random local port, insert socket in hash tables [while local address is INADDR_ANY] - connect() : set remote address and port, change local address to IP given by a route lookup. When an incoming UDP frame comes, if more than 10 sockets are found in primary hash table, we switch to secondary table, and fail to find socket because its local address changed. One solution to this problem is to rehash datagram socket if needed. We add a new rehash(struct socket *) method in "struct proto", and implement this method for UDP v4 & v6, using a common helper. This rehashing only takes care of secondary hash table, since primary hash (based on local port only) is not changed. Reported-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | net: blackhole route should always be recalculatedJianzhao Wang2010-09-081-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Blackhole routes are used when xfrm_lookup() returns -EREMOTE (error triggered by IKE for example), hence this kind of route is always temporary and so we should check if a better route exists for next packets. Bug has been introduced by commit d11a4dc18bf41719c9f0d7ed494d295dd2973b92. Signed-off-by: Jianzhao Wang <jianzhao.wang@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | ipv4: Suppress lockdep-RCU false positive in FIB trie (3)Jarek Poplawski2010-09-081-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hi, Here is one more of these warnings and a patch below: Sep 5 23:52:33 del kernel: [46044.244833] =================================================== Sep 5 23:52:33 del kernel: [46044.269681] [ INFO: suspicious rcu_dereference_check() usage. ] Sep 5 23:52:33 del kernel: [46044.277000] --------------------------------------------------- Sep 5 23:52:33 del kernel: [46044.285185] net/ipv4/fib_trie.c:1756 invoked rcu_dereference_check() without protection! Sep 5 23:52:33 del kernel: [46044.293627] Sep 5 23:52:33 del kernel: [46044.293632] other info that might help us debug this: Sep 5 23:52:33 del kernel: [46044.293634] Sep 5 23:52:33 del kernel: [46044.325333] Sep 5 23:52:33 del kernel: [46044.325335] rcu_scheduler_active = 1, debug_locks = 0 Sep 5 23:52:33 del kernel: [46044.348013] 1 lock held by pppd/1717: Sep 5 23:52:33 del kernel: [46044.357548] #0: (rtnl_mutex){+.+.+.}, at: [<c125dc1f>] rtnl_lock+0xf/0x20 Sep 5 23:52:33 del kernel: [46044.367647] Sep 5 23:52:33 del kernel: [46044.367652] stack backtrace: Sep 5 23:52:33 del kernel: [46044.387429] Pid: 1717, comm: pppd Not tainted 2.6.35.4.4a #3 Sep 5 23:52:33 del kernel: [46044.398764] Call Trace: Sep 5 23:52:33 del kernel: [46044.409596] [<c12f9aba>] ? printk+0x18/0x1e Sep 5 23:52:33 del kernel: [46044.420761] [<c1053969>] lockdep_rcu_dereference+0xa9/0xb0 Sep 5 23:52:33 del kernel: [46044.432229] [<c12b7235>] trie_firstleaf+0x65/0x70 Sep 5 23:52:33 del kernel: [46044.443941] [<c12b74d4>] fib_table_flush+0x14/0x170 Sep 5 23:52:33 del kernel: [46044.455823] [<c1033e92>] ? local_bh_enable_ip+0x62/0xd0 Sep 5 23:52:33 del kernel: [46044.467995] [<c12fc39f>] ? _raw_spin_unlock_bh+0x2f/0x40 Sep 5 23:52:33 del kernel: [46044.480404] [<c12b24d0>] ? fib_sync_down_dev+0x120/0x180 Sep 5 23:52:33 del kernel: [46044.493025] [<c12b069d>] fib_flush+0x2d/0x60 Sep 5 23:52:33 del kernel: [46044.505796] [<c12b06f5>] fib_disable_ip+0x25/0x50 Sep 5 23:52:33 del kernel: [46044.518772] [<c12b10d3>] fib_netdev_event+0x73/0xd0 Sep 5 23:52:33 del kernel: [46044.531918] [<c1048dfd>] notifier_call_chain+0x2d/0x70 Sep 5 23:52:33 del kernel: [46044.545358] [<c1048f0a>] raw_notifier_call_chain+0x1a/0x20 Sep 5 23:52:33 del kernel: [46044.559092] [<c124f687>] call_netdevice_notifiers+0x27/0x60 Sep 5 23:52:33 del kernel: [46044.573037] [<c124faec>] __dev_notify_flags+0x5c/0x80 Sep 5 23:52:33 del kernel: [46044.586489] [<c124fb47>] dev_change_flags+0x37/0x60 Sep 5 23:52:33 del kernel: [46044.599394] [<c12a8a8d>] devinet_ioctl+0x54d/0x630 Sep 5 23:52:33 del kernel: [46044.612277] [<c12aabb7>] inet_ioctl+0x97/0xc0 Sep 5 23:52:34 del kernel: [46044.625208] [<c123f6af>] sock_ioctl+0x6f/0x270 Sep 5 23:52:34 del kernel: [46044.638046] [<c109d2b0>] ? handle_mm_fault+0x420/0x6c0 Sep 5 23:52:34 del kernel: [46044.650968] [<c123f640>] ? sock_ioctl+0x0/0x270 Sep 5 23:52:34 del kernel: [46044.663865] [<c10c3188>] vfs_ioctl+0x28/0xa0 Sep 5 23:52:34 del kernel: [46044.676556] [<c10c38fa>] do_vfs_ioctl+0x6a/0x5c0 Sep 5 23:52:34 del kernel: [46044.688989] [<c1048676>] ? up_read+0x16/0x30 Sep 5 23:52:34 del kernel: [46044.701411] [<c1021376>] ? do_page_fault+0x1d6/0x3a0 Sep 5 23:52:34 del kernel: [46044.714223] [<c10b6588>] ? fget_light+0xf8/0x2f0 Sep 5 23:52:34 del kernel: [46044.726601] [<c1241f98>] ? sys_socketcall+0x208/0x2c0 Sep 5 23:52:34 del kernel: [46044.739140] [<c10c3eb3>] sys_ioctl+0x63/0x70 Sep 5 23:52:34 del kernel: [46044.751967] [<c12fca3d>] syscall_call+0x7/0xb Sep 5 23:52:34 del kernel: [46044.764734] [<c12f0000>] ? cookie_v6_check+0x3d0/0x630 --------------> This patch fixes the warning: =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- net/ipv4/fib_trie.c:1756 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 1 lock held by pppd/1717: #0: (rtnl_mutex){+.+.+.}, at: [<c125dc1f>] rtnl_lock+0xf/0x20 stack backtrace: Pid: 1717, comm: pppd Not tainted 2.6.35.4a #3 Call Trace: [<c12f9aba>] ? printk+0x18/0x1e [<c1053969>] lockdep_rcu_dereference+0xa9/0xb0 [<c12b7235>] trie_firstleaf+0x65/0x70 [<c12b74d4>] fib_table_flush+0x14/0x170 ... Allow trie_firstleaf() to be called either under rcu_read_lock() protection or with RTNL held. The same annotation is added to node_parent_rcu() to prevent a similar warning a bit later. Followup of commits 634a4b20 and 4eaa0e3c. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | ipvs: fix active FTPJulian Anastasov2010-09-083-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Do not create expectation when forwarding the PORT command to avoid blocking the connection. The problem is that nf_conntrack_ftp.c:help() tries to create the same expectation later in POST_ROUTING and drops the packet with "dropping packet" message after failure in nf_ct_expect_related. - Change ip_vs_update_conntrack to alter the conntrack for related connections from real server. If we do not alter the reply in this direction the next packet from client sent to vport 20 comes as NEW connection. We alter it but may be some collision happens for both conntracks and the second conntrack gets destroyed immediately. The connection stucks too. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | gro: Re-fix different skb headroomsJarek Poplawski2010-09-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch: "gro: fix different skb headrooms" in its part: "2) allocate a minimal skb for head of frag_list" is buggy. The copied skb has p->data set at the ip header at the moment, and skb_gro_offset is the length of ip + tcp headers. So, after the change the length of mac header is skipped. Later skb_set_mac_header() sets it into the NET_SKB_PAD area (if it's long enough) and ip header is misaligned at NET_SKB_PAD + NET_IP_ALIGN offset. There is no reason to assume the original skb was wrongly allocated, so let's copy it as it was. bugzilla : https://bugzilla.kernel.org/show_bug.cgi?id=16626 fixes commit: 3d3be4333fdf6faa080947b331a6a19bce1a4f57 Reported-by: Plamen Petrov <pvp-lsts@fs.uni-ruse.bg> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> CC: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Plamen Petrov <pvp-lsts@fs.uni-ruse.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | ipv4: Fix reverse path filtering with multipath routing.David S. Miller2010-09-071-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Actually iterate over the next-hops to make sure we have a device match. Otherwise RP filtering is always elided when the route matched has multiple next-hops. Reported-by: Igor M Podlesny <for.poige@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | UNIX: Do not loop forever at unix_autobind().Tetsuo Handa2010-09-071-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We assumed that unix_autobind() never fails if kzalloc() succeeded. But unix_autobind() allows only 1048576 names. If /proc/sys/fs/file-max is larger than 1048576 (e.g. systems with more than 10GB of RAM), a local user can consume all names using fork()/socket()/bind(). If all names are in use, those who call bind() with addr_len == sizeof(short) or connect()/sendmsg() with setsockopt(SO_PASSCRED) will continue while (1) yield(); loop at unix_autobind() till a name becomes available. This patch adds a loop counter in order to give up after 1048576 attempts. Calling yield() for once per 256 attempts may not be sufficient when many names are already in use, for __unix_find_socket_byname() can take long time under such circumstance. Therefore, this patch also adds cond_resched() call. Note that currently a local user can consume 2GB of kernel memory if the user is allowed to create and autobind 1048576 UNIX domain sockets. We should consider adding some restriction for autobind operation. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | irda: off by oneDan Carpenter2010-09-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is an off by one. We would go past the end when we NUL terminate the "value" string at end of the function. The "value" buffer is allocated in irlan_client_parse_response() or irlan_provider_parse_command(). CC: stable@kernel.org Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | | netfilter: discard overlapping IPv6 fragmentNicolas Dichtel2010-09-071-65/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RFC5722 prohibits reassembling IPv6 fragments when some data overlaps. Bug spotted by Zhang Zuotao <zuotao.zhang@6wind.com>. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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