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2011-01-13Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) Documentation/trace/events.txt: Remove obsolete sched_signal_send. writeback: fix global_dirty_limits comment runtime -> real-time ppc: fix comment typo singal -> signal drivers: fix comment typo diable -> disable. m68k: fix comment typo diable -> disable. wireless: comment typo fix diable -> disable. media: comment typo fix diable -> disable. remove doc for obsolete dynamic-printk kernel-parameter remove extraneous 'is' from Documentation/iostats.txt Fix spelling milisec -> ms in snd_ps3 module parameter description Fix spelling mistakes in comments Revert conflicting V4L changes i7core_edac: fix typos in comments mm/rmap.c: fix comment sound, ca0106: Fix assignment to 'channel'. hrtimer: fix a typo in comment init/Kconfig: fix typo anon_inodes: fix wrong function name in comment fix comment typos concerning "consistent" poll: fix a typo in comment ... Fix up trivial conflicts in: - drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c) - fs/ext4/ext4.h Also fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
2011-01-13netfilter: ctnetlink: fix loop in ctnetlink_get_conntrack()Pablo Neira Ayuso
This patch fixes a loop in ctnetlink_get_conntrack() that can be triggered if you use the same socket to receive events and to perform a GET operation. Under heavy load, netlink_unicast() may return -EAGAIN, this error code is reserved in nfnetlink for the module load-on-demand. Instead, we return -ENOBUFS which is the appropriate error code that has to be propagated to user-space. Reported-by: Holger Eitzenberger <holger@eitzenberger.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-01-13netfilter: ebt_ip6: allow matching on ipv6-icmp types/codesFlorian Westphal
To avoid adding a new match revision icmp type/code are stored in the sport/dport area. Signed-off-by: Florian Westphal <fw@strlen.de> Reviewed-by: Holger Eitzenberger <holger@eitzenberger.org> Reviewed-by: Bart De Schuymer<bdschuym@pandora.be> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-01-13netfilter: x_table: speedup compat operationsEric Dumazet
One iptables invocation with 135000 rules takes 35 seconds of cpu time on a recent server, using a 32bit distro and a 64bit kernel. We eventually trigger NMI/RCU watchdog. INFO: rcu_sched_state detected stall on CPU 3 (t=6000 jiffies) COMPAT mode has quadratic behavior and consume 16 bytes of memory per rule. Switch the xt_compat algos to use an array instead of list, and use a binary search to locate an offset in the sorted array. This halves memory need (8 bytes per rule), and removes quadratic behavior [ O(N*N) -> O(N*log2(N)) ] Time of iptables goes from 35 s to 150 ms. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-01-13netfilter: xt_conntrack: support matching on port rangesPatrick McHardy
Add a new revision 3 that contains port ranges for all of origsrc, origdst, replsrc and repldst. The high ports are appended to the original v2 data structure to allow sharing most of the code with v1 and v2. Use of the revision specific port matching function is made dependant on par->match->revision. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-01-12eth: fix new kernel-doc warningRandy Dunlap
Fix new kernel-doc warning (copy-paste typo): Warning(net/ethernet/eth.c:366): No description found for parameter 'rxqs' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-12Merge branch 'master' of git://1984.lsi.us.es/net-2.6David S. Miller
2011-01-12inet6: prevent network storms caused by linux IPv6 routersAlexey Kuznetsov
Linux IPv6 forwards unicast packets, which are link layer multicasts... The hole was present since day one. I was 100% this check is there, but it is not. The problem shows itself, f.e. when Microsoft Network Load Balancer runs on a network. This software resolves IPv6 unicast addresses to multicast MAC addresses. Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-13IPVS: netns, final patch enabling network name space.Hans Schillstrom
all init_net removed, (except for some alloc related that needs to be there) Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, misc init_net removal in core.Hans Schillstrom
init_net removed in __ip_vs_addr_is_local_v6, and got net as param. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, svc counters moved in ip_vs_ctl,cHans Schillstrom
Last two global vars to be moved, ip_vs_ftpsvc_counter and ip_vs_nullsvc_counter. [horms@verge.net.au: removed whitespace-change-only hunk] Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, trash handlingHans Schillstrom
trash list per namspace, and reordering of some params in dst struct. [ horms@verge.net.au: Use cancel_delayed_work_sync() instead of cancel_rearming_delayed_work(). Found during merge conflict resoliution ] Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, defense work timer.Hans Schillstrom
This patch makes defense work timer per name-space, A net ptr had to be added to the ipvs struct, since it's needed by defense_work_handler. [ horms@verge.net.au: Use cancel_delayed_work_sync() instead of cancel_rearming_delayed_work(). Found during merge conflict resoliution ] Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, ip_vs_ctl local vars moved to ipvs struct.Hans Schillstrom
Moving global vars to ipvs struct, except for svc table lock. Next patch for ctl will be drop-rate handling. *v3 __ip_vs_mutex remains global ip_vs_conntrack_enabled(struct netns_ipvs *ipvs) Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, connection hash got net as param.Hans Schillstrom
Connection hash table is now name space aware. i.e. net ptr >> 8 is xor:ed to the hash, and this is the first param to be compared. The net struct is 0xa40 in size ( a little bit smaller for 32 bit arch:s) and cache-line aligned, so a ptr >> 5 might be a more clever solution ? All lookups where net is compared uses net_eq() which returns 1 when netns is disabled, and the compiler seems to do something clever in that case. ip_vs_conn_fill_param() have *net as first param now. Three new inlines added to keep conn struct smaller when names space is disabled. - ip_vs_conn_net() - ip_vs_conn_net_set() - ip_vs_conn_net_eq() *v3 moved net compare to the end in "fast path" Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, ip_vs_stats and its procfsHans Schillstrom
The statistic counter locks for every packet are now removed, and that statistic is now per CPU, i.e. no locks needed. However summing is made in ip_vs_est into ip_vs_stats struct which is moved to ipvs struc. procfs, ip_vs_stats now have a "per cpu" count and a grand total. A new function seq_file_single_net() in ip_vs.h created for handling of single_open_net() since it does not place net ptr in a struct, like others. /var/lib/lxc # cat /proc/net/ip_vs_stats_percpu Total Incoming Outgoing Incoming Outgoing CPU Conns Packets Packets Bytes Bytes 0 0 3 1 9D 34 1 0 1 2 49 70 2 0 1 2 34 76 3 1 2 2 70 74 ~ 1 7 7 18A 18E Conns/s Pkts/s Pkts/s Bytes/s Bytes/s 0 0 0 0 0 *v3 ip_vs_stats reamains as before, instead ip_vs_stats_percpu is added. u64 seq lock added *v4 Bug correction inbytes and outbytes as own vars.. per_cpu counter for all stats now as suggested by Julian. [horms@verge.net.au: removed whitespace-change-only hunk] Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns awareness to ip_vs_syncHans Schillstrom
All global variables moved to struct ipvs, most external changes fixed (i.e. init_net removed) in sync_buf create + 4 replaced by sizeof(struct..) Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns awareness to ip_vs_estHans Schillstrom
All variables moved to struct ipvs, most external changes fixed (i.e. init_net removed) *v3 timer per ns instead of a common timer in estimator. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns awareness to ip_vs_appHans Schillstrom
All variables moved to struct ipvs, most external changes fixed (i.e. init_net removed) in ip_vs_protocol param struct net *net added to: - register_app() - unregister_app() This affected almost all proto_xxx.c files Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, common protocol changes and use of appcnt.Hans Schillstrom
appcnt and timeout_table moved from struct ip_vs_protocol to ip_vs proto_data. struct net *net added as first param to - register_app() - unregister_app() - app_conn_bind() - ip_vs_conn_new() [horms@verge.net.au: removed cosmetic-change-only hunk] Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, use ip_vs_proto_data as param.Hans Schillstrom
ip_vs_protocol *pp is replaced by ip_vs_proto_data *pd in function call in ip_vs_protocol struct i.e. :, - timeout_change() - state_transition() ip_vs_protocol_timeout_change() got ipvs as param, due to above and a upcoming patch - defence work Most of this changes are triggered by Julians comment: "tcp_timeout_change should work with the new struct ip_vs_proto_data so that tcp_state_table will go to pd->state_table and set_tcp_state will get pd instead of pp" *v3 Mostly comments from Julian The pp -> pd conversion should start from functions like ip_vs_out() that use pp = ip_vs_proto_get(iph.protocol), now they should use ip_vs_proto_data_get(net, iph.protocol). conn_in_get() and conn_out_get() unused param *pp, removed. *v4 ip_vs_protocol_timeout_change() walk the proto_data path. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns preparation for proto_ah_espHans Schillstrom
In this phase (one), all local vars will be moved to ipvs struct. Remaining work, add param struct net *net to a couple of functions that common for all protos. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns preparation for proto_sctpHans Schillstrom
In this phase (one), all local vars will be moved to ipvs struct. Remaining work, add param struct net *net to a couple of functions that is common for all protos and use ip_vs_proto_data *v3 Removed unuset function set_state_timeout() Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns preparation for proto_udpHans Schillstrom
In this phase (one), all local vars will be moved to ipvs struct. Remaining work, add param struct net *net to a couple of functions that is common for all protos and use ip_vs_proto_data *v3 Removed unused function set_state_timeout() Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns preparation for proto_tcpHans Schillstrom
In this phase (one), all local vars will be moved to ipvs struct. Remaining work, add param struct net *net to a couple of functions that is common for all protos and use all ip_vs_proto_data *v3 Removed unused function as sugested by Simon Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, prepare protocolHans Schillstrom
Add support for protocol data per name-space. in struct ip_vs_protocol, appcnt will be removed when all protos are modified for network name-space. This patch causes warnings of unused functions, they will be used when next patch will be applied. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns awarness to lblc shedulerHans Schillstrom
var sysctl_ip_vs_lblc_expiration moved to ipvs struct as sysctl_lblc_expiration procfs updated to handle this. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns awarness to lblcr shedulerHans Schillstrom
var sysctl_ip_vs_lblcr_expiration moved to ipvs struct as sysctl_lblcr_expiration procfs updated to handle this. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns to services part 1Hans Schillstrom
Services hash tables got netns ptr a hash arg, While Real Servers (rs) has been moved to ipvs struct. Two new inline functions added to get net ptr from skb. Since ip_vs is called from different contexts there is two places to dig for the net ptr skb->dev or skb->sk this is handled in skb_net() and skb_sknet() Global functions, ip_vs_service_get() ip_vs_lookup_real_service() etc have got struct net *net as first param. If possible get net ptr skb etc, - if not &init_net is used at this early stage of patching. ip_vs_ctl.c procfs not ready for netns yet. *v3 Comments by Julian - __ip_vs_service_find and __ip_vs_svc_fwm_find are fast path, net_eq(svc->net, net) so the check is at the end now. - net = skb_net(skb) in ip_vs_out moved after check for skb_dst. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13IPVS: netns, add basic init per netns.Hans Schillstrom
Preparation for network name-space init, in this stage some empty functions exists. In most files there is a check if it is root ns i.e. init_net if (!net_eq(net, &init_net)) return ... this will be removed by the last patch, when enabling name-space. *v3 ip_vs_conn.c merge error corrected. net_ipvs #ifdef removed as sugested by Jan Engelhardt [ horms@verge.net.au: Removed whitespace-change-only hunks ] Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2011-01-13Merge branch 'master' of ↵Simon Horman
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 into HEAD
2011-01-12pass default dentry_operations to mount_pseudo()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-12net/ceph: make ceph_msgr_wq non-reentrantTejun Heo
ceph messenger code does a rather complex dancing around multithread workqueue to make sure the same work item isn't executed concurrently on different CPUs. This restriction can be provided by workqueue with WQ_NON_REENTRANT. Make ceph_msgr_wq non-reentrant workqueue with the default concurrency level and remove the QUEUED/BUSY logic. * This removes backoff handling in con_work() but it couldn't reliably block execution of con_work() to begin with - queue_con() can be called after the work started but before BUSY is set. It seems that it was an optimization for a rather cold path and can be safely removed. * The number of concurrent work items is bound by the number of connections and connetions are independent from each other. With the default concurrency level, different connections will be executed independently. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Sage Weil <sage@newdream.net> Cc: ceph-devel@vger.kernel.org Signed-off-by: Sage Weil <sage@newdream.net>
2011-01-12ceph: Always free allocated memory in osdmap_decode()Jesper Juhl
Always free memory allocated to 'pi' in net/ceph/osdmap.c::osdmap_decode(). Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Sage Weil <sage@newdream.net>
2011-01-12ceph: add dir_layout to inodeSage Weil
Add a ceph_dir_layout to the inode, and calculate dentry hash values based on the parent directory's specified dir_hash function. This is needed because the old default Linux dcache hash function is extremely week and leads to a poor distribution of files among dir fragments. Signed-off-by: Sage Weil <sage@newdream.net>
2011-01-12netfilter: fix compilation when conntrack is disabled but tproxy is enabledKOVACS Krisztian
The IPv6 tproxy patches split IPv6 defragmentation off of conntrack, but failed to update the #ifdef stanzas guarding the defragmentation related fields and code in skbuff and conntrack related code in nf_defrag_ipv6.c. This patch adds the required #ifdefs so that IPv6 tproxy can truly be used without connection tracking. Original report: http://marc.info/?l=linux-netdev&m=129010118516341&w=2 Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-01-12net: ax25: fix information leak to userland harderKees Cook
Commit fe10ae53384e48c51996941b7720ee16995cbcb7 adds a memset() to clear the structure being sent back to userspace, but accidentally used the wrong size. Reported-by: Brad Spengler <spender@grsecurity.net> Signed-off-by: Kees Cook <kees.cook@canonical.com> Cc: stable@kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (67 commits) cxgb4vf: recover from failure in cxgb4vf_open() netfilter: ebtables: make broute table work again netfilter: fix race in conntrack between dump_table and destroy ah: reload pointers to skb data after calling skb_cow_data() ah: update maximum truncated ICV length xfrm: check trunc_len in XFRMA_ALG_AUTH_TRUNC ehea: Increase the skb array usage net/fec: remove config FEC2 as it's used nowhere pcnet_cs: add new_id tcp: disallow bind() to reuse addr/port net/r8169: Update the function of parsing firmware net: ppp: use {get,put}_unaligned_be{16,32} CAIF: Fix IPv6 support in receive path for GPRS/3G arp: allow to invalidate specific ARP entries net_sched: factorize qdisc stats handling mlx4: Call alloc_etherdev to allocate RX and TX queues net: Add alloc_netdev_mqs function caif: don't set connection request param size before copying data cxgb4vf: fix mailbox data/control coherency domain race qlcnic: change module parameter permissions ...
2011-01-11Merge branch 'master' of git://1984.lsi.us.es/net-2.6David S. Miller
2011-01-11Merge branch 'nfs-for-2.6.38' of ↵Linus Torvalds
git://git.linux-nfs.org/projects/trondmy/nfs-2.6 * 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (89 commits) NFS fix the setting of exchange id flag NFS: Don't use vm_map_ram() in readdir NFSv4: Ensure continued open and lockowner name uniqueness NFS: Move cl_delegations to the nfs_server struct NFS: Introduce nfs_detach_delegations() NFS: Move cl_state_owners and related fields to the nfs_server struct NFS: Allow walking nfs_client.cl_superblocks list outside client.c pnfs: layout roc code pnfs: update nfs4_callback_recallany to handle layouts pnfs: add CB_LAYOUTRECALL handling pnfs: CB_LAYOUTRECALL xdr code pnfs: change lo refcounting to atomic_t pnfs: check that partial LAYOUTGET return is ignored pnfs: add layout to client list before sending rpc pnfs: serialize LAYOUTGET(openstateid) pnfs: layoutget rpc code cleanup pnfs: change how lsegs are removed from layout list pnfs: change layout state seqlock to a spinlock pnfs: add prefix to struct pnfs_layout_hdr fields pnfs: add prefix to struct pnfs_layout_segment fields ...
2011-01-11netfilter: fix race in conntrack between dump_table and destroyStephen Hemminger
The netlink interface to dump the connection tracking table has a race when entries are deleted at the same time. A customer reported a crash and the backtrace showed thatctnetlink_dump_table was running while a conntrack entry was being destroyed. (see https://bugzilla.vyatta.com/show_bug.cgi?id=6402). According to RCU documentation, when using hlist_nulls the reader must handle the case of seeing a deleted entry and not proceed further down the linked list. The old code would continue which caused the scan to walk into the free list. This patch uses locking (rather than RCU) for this operation which is guaranteed safe, and no longer requires getting reference while doing dump operation. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-01-11ah: reload pointers to skb data after calling skb_cow_data()Dang Hongwu
skb_cow_data() may allocate a new data buffer, so pointers on skb should be set after this function. Bug was introduced by commit dff3bb06 ("ah4: convert to ahash") and 8631e9bd ("ah6: convert to ahash"). Signed-off-by: Wang Xuefu <xuefu.wang@6wind.com> Acked-by: Krzysztof Witek <krzysztof.witek@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-11xfrm: check trunc_len in XFRMA_ALG_AUTH_TRUNCNicolas Dichtel
Maximum trunc length is defined by MAX_AH_AUTH_LEN (in bytes) and need to be checked when this value is set (in bits) by the user. In ah4.c and ah6.c a BUG_ON() checks this condiftion. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-11tcp: disallow bind() to reuse addr/portEric Dumazet
inet_csk_bind_conflict() logic currently disallows a bind() if it finds a friend socket (a socket bound on same address/port) satisfying a set of conditions : 1) Current (to be bound) socket doesnt have sk_reuse set OR 2) other socket doesnt have sk_reuse set OR 3) other socket is in LISTEN state We should add the CLOSE state in the 3) condition, in order to avoid two REUSEADDR sockets in CLOSE state with same local address/port, since this can deny further operations. Note : a prior patch tried to address the problem in a different (and buggy) way. (commit fda48a0d7a8412ced tcp: bind() fix when many ports are bound). Reported-by: Gaspar Chilingarov <gasparch@gmail.com> Reported-by: Daniel Baluta <daniel.baluta@gmail.com> Tested-by: Daniel Baluta <daniel.baluta@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-11rpc: allow xprt_class->setup to return a preexisting xprtJ. Bruce Fields
This allows us to reuse the xprt associated with a server connection if one has already been set up. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-01-11rpc: keep backchannel xprt as long as server connectionJ. Bruce Fields
Multiple backchannels can share the same tcp connection; from rfc 5661 section 2.10.3.1: A connection's association with a session is not exclusive. A connection associated with the channel(s) of one session may be simultaneously associated with the channel(s) of other sessions including sessions associated with other client IDs. However, multiple backchannels share a connection, they must all share the same xid stream (hence the same rpc_xprt); the only way we have to match replies with calls at the rpc layer is using the xid. So, keep the rpc_xprt around as long as the connection lasts, in case we're asked to use the connection as a backchannel again. Requests to create new backchannel clients over a given server connection should results in creating new clients that reuse the existing rpc_xprt. But to start, just reject attempts to associate multiple rpc_xprt's with the same underlying bc_xprt. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-01-11rpc: move sk_bc_xprt to svc_xprtJ. Bruce Fields
This seems obviously transport-level information even if it's currently used only by the server socket code. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2011-01-11Merge commit 'v2.6.37' into for-2.6.38-incomingJ. Bruce Fields
I made a slight mess of Documentation/filesystems/Locking; resolve conflicts with upstream before fixing it up.
2011-01-11net/9p: Use proper data typesM. Mohan Kumar
Use proper data types for storing the count of the binary blob and length of a string. Without this patch length calculation of string will always result in -1 because of comparision between signed and unsigned integer. Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2011-01-10CAIF: Fix IPv6 support in receive path for GPRS/3GKumar Sanghvi
Checks version field of IP in the receive path for GPRS/3G data and appropriately sets the value of skb->protocol. Signed-off-by: Sjur Braendeland <sjur.brandeland@stericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>