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* net/9p: Return error on read with NULL bufferSanchit Garg2010-10-281-4/+1
| | | | | | | | This patch ensures that a read(fd, NULL, 10) returns EFAULT on a 9p file. Signed-off-by: Sanchit Garg <sancgarg@linux.vnet.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* 9p: Add datasync to client side TFSYNC/RFSYNC for dotlVenkateswararao Jujjuri (JV)2010-10-281-3/+4
| | | | | | | | | | | | | | | | | | | | SYNOPSIS size[4] Tfsync tag[2] fid[4] datasync[4] size[4] Rfsync tag[2] DESCRIPTION The Tfsync transaction transfers ("flushes") all modified in-core data of file identified by fid to the disk device (or other permanent storage device) where that file resides. If datasync flag is specified data will be fleshed but does not flush modified metadata unless that metadata is needed in order to allow a subsequent data retrieval to be correctly handled. Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* net/9p: Return error if we fail to encode protocol dataAneesh Kumar K.V2010-10-282-3/+4
| | | | | | | | | We need to return error in case we fail to encode data in protocol buffer. This patch also return error in case of a failed copy_from_user. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* net/9p: Add waitq to VirtIO transport.Venkateswararao Jujjuri (JV)2010-10-282-8/+41
| | | | | | | | | | | If there is not enough space for the PDU on the VirtIO ring, current code returns -EIO propagating the error to user. This patch introduced a wqit_queue on the channel, and lets the process wait on this queue until VirtIO ring frees up. Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* [net/9p]Serialize virtqueue operations to make VirtIO transport SMP safe.Venkateswararao Jujjuri (JV)2010-10-281-10/+24
| | | | | Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* 9p: Implement TREADLINK operation for 9p2000.LM. Mohan Kumar2010-10-281-0/+26
| | | | | | | | | | | | | | | | | | | Synopsis size[4] TReadlink tag[2] fid[4] size[4] RReadlink tag[2] target[s] Description Readlink is used to return the contents of the symoblic link referred by fid. Contents of symboic link is returned as a response. target[s] - Contents of the symbolic link referred by fid. Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* 9p: Implement TGETLOCKM. Mohan Kumar2010-10-281-0/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Synopsis size[4] TGetlock tag[2] fid[4] getlock[n] size[4] RGetlock tag[2] getlock[n] Description TGetlock is used to test for the existence of byte range posix locks on a file identified by given fid. The reply contains getlock structure. If the lock could be placed it returns F_UNLCK in type field of getlock structure. Otherwise it returns the details of the conflicting locks in the getlock structure getlock structure: type[1] - Type of lock: F_RDLCK, F_WRLCK start[8] - Starting offset for lock length[8] - Number of bytes to check for the lock If length is 0, check for lock in all bytes starting at the location 'start' through to the end of file pid[4] - PID of the process that wants to take lock/owns the task in case of reply client[4] - Client id of the system that owns the process which has the conflicting lock Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* 9p: Implement TLOCKM. Mohan Kumar2010-10-281-0/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Synopsis size[4] TLock tag[2] fid[4] flock[n] size[4] RLock tag[2] status[1] Description Tlock is used to acquire/release byte range posix locks on a file identified by given fid. The reply contains status of the lock request flock structure: type[1] - Type of lock: F_RDLCK, F_WRLCK, F_UNLCK flags[4] - Flags could be either of P9_LOCK_FLAGS_BLOCK - Blocked lock request, if there is a conflicting lock exists, wait for that lock to be released. P9_LOCK_FLAGS_RECLAIM - Reclaim lock request, used when client is trying to reclaim a lock after a server restrart (due to crash) start[8] - Starting offset for lock length[8] - Number of bytes to lock If length is 0, lock all bytes starting at the location 'start' through to the end of file pid[4] - PID of the process that wants to take lock client_id[4] - Unique client id status[1] - Status of the lock request, can be P9_LOCK_SUCCESS(0), P9_LOCK_BLOCKED(1), P9_LOCK_ERROR(2) or P9_LOCK_GRACE(3) P9_LOCK_SUCCESS - Request was successful P9_LOCK_BLOCKED - A conflicting lock is held by another process P9_LOCK_ERROR - Error while processing the lock request P9_LOCK_GRACE - Server is in grace period, it can't accept new lock requests in this period (except locks with P9_LOCK_FLAGS_RECLAIM flag set) Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* [9p] Introduce client side TFSYNC/RFSYNC for dotl.Venkateswararao Jujjuri (JV)2010-10-281-0/+25
| | | | | | | | | | | | | | | | SYNOPSIS size[4] Tfsync tag[2] fid[4] size[4] Rfsync tag[2] DESCRIPTION The Tfsync transaction transfers ("flushes") all modified in-core data of file identified by fid to the disk device (or other permanent storage device) where that file resides. Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* net/9p: Add a Warning to catch NULL fids passed to p9_client_clunk().jvrao2010-10-281-0/+6
| | | | | Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* net/9p: This patch implements TLERROR/RLERROR on the 9P client.Arun R Bharadwaj2010-10-281-16/+27
| | | | | | Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2010-10-2743-320/+400
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (108 commits) ehea: Fixing statistics bonding: Fix lockdep warning after bond_vlan_rx_register() tunnels: Fix tunnels change rcu protection caif-u5500: Build config for CAIF shared mem driver caif-u5500: CAIF shared memory mailbox interface caif-u5500: CAIF shared memory transport protocol caif-u5500: Adding shared memory include drivers/isdn: delete double assignment drivers/net/typhoon.c: delete double assignment drivers/net/sb1000.c: delete double assignment qlcnic: define valid vlan id range qlcnic: reduce rx ring size qlcnic: fix mac learning ehea: fix use after free inetpeer: __rcu annotations fib_rules: __rcu annotates ctarget tunnels: add __rcu annotations net: add __rcu annotations to protocol ipv4: add __rcu annotations to routes.c qlge: bugfix: Restoring the vlan setting. ...
| * tunnels: Fix tunnels change rcu protectionPavel Emelyanov2010-10-274-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After making rcu protection for tunnels (ipip, gre, sit and ip6) a bug was introduced into the SIOCCHGTUNNEL code. The tunnel is first unlinked, then addresses change, then it is linked back probably into another bucket. But while changing the parms, the hash table is unlocked to readers and they can lookup the improper tunnel. Respective commits are b7285b79 (ipip: get rid of ipip_lock), 1507850b (gre: get rid of ipgre_lock), 3a43be3c (sit: get rid of ipip6_lock) and 94767632 (ip6tnl: get rid of ip6_tnl_lock). The quick fix is to wait for quiescent state to pass after unlinking, but if it is inappropriate I can invent something better, just let me know. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * inetpeer: __rcu annotationsEric Dumazet2010-10-271-58/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds __rcu annotations to inetpeer (struct inet_peer)->avl_left (struct inet_peer)->avl_right This is a tedious cleanup, but removes one smp_wmb() from link_to_pool() since we now use more self documenting rcu_assign_pointer(). Note the use of RCU_INIT_POINTER() instead of rcu_assign_pointer() in all cases we dont need a memory barrier. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * fib_rules: __rcu annotates ctargetEric Dumazet2010-10-271-5/+6
| | | | | | | | | | | | | | Adds __rcu annotation to (struct fib_rule)->ctarget Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * tunnels: add __rcu annotationsEric Dumazet2010-10-271-10/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add __rcu annotations to : (struct ip_tunnel)->prl (struct ip_tunnel_prl_entry)->next (struct xfrm_tunnel)->next struct xfrm_tunnel *tunnel4_handlers struct xfrm_tunnel *tunnel64_handlers And use appropriate rcu primitives to reduce sparse warnings if CONFIG_SPARSE_RCU_POINTER=y Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: add __rcu annotations to protocolEric Dumazet2010-10-272-6/+10
| | | | | | | | | | | | | | | | | | | | | | | | Add __rcu annotations to : struct net_protocol *inet_protos struct net_protocol *inet6_protos And use appropriate casts to reduce sparse warnings if CONFIG_SPARSE_RCU_POINTER=y Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ipv4: add __rcu annotations to routes.cEric Dumazet2010-10-271-29/+46
| | | | | | | | | | | | | | | | | | | | | | | | Add __rcu annotations to : (struct dst_entry)->rt_next (struct rt_hash_bucket)->chain And use appropriate rcu primitives to reduce sparse warnings if CONFIG_SPARSE_RCU_POINTER=y Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ipv6: fix refcnt problem related to POSTDAD stateUrsula Braun2010-10-271-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After running this bonding setup script modprobe bonding miimon=100 mode=0 max_bonds=1 ifconfig bond0 10.1.1.1/16 ifenslave bond0 eth1 ifenslave bond0 eth3 on s390 with qeth-driven slaves, modprobe -r fails with this message unregister_netdevice: waiting for bond0 to become free. Usage count = 1 due to twice detection of duplicate address. Problem is caused by a missing decrease of ifp->refcnt in addrconf_dad_failure. An extra call of in6_ifa_put(ifp) solves it. Problem has been introduced with commit f2344a131bccdbfc5338e17fa71a807dee7944fa. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Cc: David S. Miller <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: NETIF_F_HW_CSUM does not imply FCoE CRC offloadBen Hutchings2010-10-271-3/+3
| | | | | | | | | | | | | | | | | | | | NETIF_F_HW_CSUM indicates the ability to update an TCP/IP-style 16-bit checksum with the checksum of an arbitrary part of the packet data, whereas the FCoE CRC is something entirely different. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Cc: stable@kernel.org [2.6.32+] Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: Fix some corner cases in dev_can_checksum()Ben Hutchings2010-10-271-10/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_can_checksum() incorrectly returns true in these cases: 1. The skb has both out-of-band and in-band VLAN tags and the device supports checksum offload for the encapsulated protocol but only with one layer of encapsulation. 2. The skb has a VLAN tag and the device supports generic checksumming but not in conjunction with VLAN encapsulation. Rearrange the VLAN tag checks to avoid these. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * IPv6: Temp addresses are immediately deleted.Glenn Wurster2010-10-261-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a bug in the interaction between ipv6_create_tempaddr and addrconf_verify. Because ipv6_create_tempaddr uses the cstamp and tstamp from the public address in creating a private address, if we have not received a router advertisement in a while, tstamp + temp_valid_lft might be < now. If this happens, the new address is created inside ipv6_create_tempaddr, then the loop within addrconf_verify starts again and the address is immediately deleted. We are left with no temporary addresses on the interface, and no more will be created until the public IP address is updated. To avoid this, set the expiry time to be the minimum of the time left on the public address or the config option PLUS the current age of the public interface. Signed-off-by: Glenn Wurster <gwurster@scs.carleton.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * IPv6: Create temporary address if none exists.Glenn Wurster2010-10-261-2/+3
| | | | | | | | | | | | | | | | If privacy extentions are enabled, but no current temporary address exists, then create one when we get a router advertisement. Signed-off-by: Glenn Wurster <gwurster@scs.carleton.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * fib_hash: fix rcu sparse and logical errorsEric Dumazet2010-10-261-16/+20
| | | | | | | | | | | | | | | | | | | | | | While fixing CONFIG_SPARSE_RCU_POINTER errors, I had to fix accesses to fz->fz_hash for real. - &fz->fz_hash[fn_hash(f->fn_key, fz)] + rcu_dereference(fz->fz_hash) + fn_hash(f->fn_key, fz) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * fib: fix fib_nl_newrule()Eric Dumazet2010-10-261-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some panic reports in fib_rules_lookup() show a rule could have a NULL pointer as a next pointer in the rules_list. This can actually happen because of a bug in fib_nl_newrule() : It checks if current rule is the destination of unresolved gotos. (Other rules have gotos to this about to be inserted rule) Problem is it does the resolution of the gotos before the rule is inserted in the rules_list (and has a valid next pointer) Fix this by moving the rules_list insertion before the changes on gotos. A lockless reader can not any more follow a ctarget pointer, unless destination is ready (has a valid next pointer) Reported-by: Oleg A. Arkhangelsky <sysoleg@yandex.ru> Reported-by: Joe Buehler <aspam@cox.net> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Merge branch 'master' of ↵David S. Miller2010-10-264-8/+6
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * mac80211: Fix ibss station got expired immediatelyRajkumar Manoharan2010-10-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Station addition in ieee80211_ibss_rx_queued_mgmt is not updating sta->last_rx which is causing station expiry in ieee80211_ibss_work path. So sta addition and deletion happens repeatedly. CC: stable@kernel.org Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * cfg80211: fix regression on processing country IEsLuis R. Rodriguez2010-10-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch 4f366c5: wireless: only use alpha2 regulatory information from country IE removed some complex intersection we were always doing between the AP's country IE info and what we got from CRDA. When CRDA sent us back a regulatory domain we would do some sanity checks on that regulatory domain response we just got. Part of these sanity checks included checking that we already had performed an intersection for the request of NL80211_REGDOM_SET_BY_COUNTRY_IE type. This mean that cfg80211 was only processing country IEs for cases where we already had an intersection, but since we removed enforcing this this is no longer required, we should just apply the country IE country hint with the data received from CRDA. This patch has fixes intended for kernels >= 2.6.36. Cc: stable@kernel.org Reported-by: Easwar Krishnan <easwar.krishnan@atheros.com> Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * mac80211: don't sanitize invalid ratesChristian Lamparter2010-10-251-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I found this bug while poking around with a pure-gn AP. Commit: cfg80211/mac80211: Use more generic bitrate mask for rate control Added some sanity checks to ensure that each tx rate index is included in the configured mask and it would change any rate indexes if it wasn't. But, the current implementation doesn't take into account that the invalid rate index "-1" has a special meaning (= no further attempts) and it should not be "changed". Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * mac80211: cancel restart_work explicitly instead of depending on ↵Tejun Heo2010-10-251-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | flush_scheduled_work() iee80211_hw->restart_work is the only work which uses the system workqueue. Instead of calling flush_scheduled_work() during iee80211_exit(), cancel the work during unregistration. This is to prepare for the deprecation and removal of flush_scheduled_work(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | netfilter: Add missing CONFIG_SYSCTL checks in ipv6's nf_conntrack_reasm.cDavid S. Miller2010-10-261-1/+4
| | | | | | | | | | | | | | | Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | ipv4: add __rcu annotations to ip_ra_chainEric Dumazet2010-10-251-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add __rcu annotations to : (struct ip_ra_chain)->next struct ip_ra_chain *ip_ra_chain; And use appropriate rcu primitives. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: add __rcu annotation to sk_filterEric Dumazet2010-10-255-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add __rcu annotation to : (struct sock)->sk_filter And use appropriate rcu primitives to reduce sparse warnings if CONFIG_SPARSE_RCU_POINTER=y Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net_ns: add __rcu annotationsEric Dumazet2010-10-251-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | add __rcu annotation to (struct net)->gen, and use rcu_dereference_protected() in net_assign_generic() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | rps: add __rcu annotationsEric Dumazet2010-10-253-14/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add __rcu annotations to : (struct netdev_rx_queue)->rps_map (struct netdev_rx_queue)->rps_flow_table struct rps_sock_flow_table *rps_sock_flow_table; And use appropriate rcu primitives. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | netfilter: fix module dependency issues with IPv6 defragmentation, ip6tables ↵KOVACS Krisztian2010-10-255-9/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | and xt_TPROXY One of the previous tproxy related patches split IPv6 defragmentation and connection tracking, but did not correctly add Kconfig stanzas to handle the new dependencies correctly. This patch fixes that by making the config options mirror the setup we have for IPv4: a distinct config option for defragmentation that is automatically selected by both connection tracking and xt_TPROXY/xt_socket. The patch also changes the #ifdefs enclosing IPv6 specific code in xt_socket and xt_TPROXY: we only compile these in case we have ip6tables support enabled. Signed-off-by: KOVACS Krisztian <hidden@balabit.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | tunnels: add _rcu annotationsEric Dumazet2010-10-252-11/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (struct ip6_tnl)->next is rcu protected : (struct ip_tunnel)->next is rcu protected : (struct xfrm6_tunnel)->next is rcu protected : add __rcu annotation and proper rcu primitives. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net/802: add __rcu annotationsEric Dumazet2010-10-252-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (struct net_device)->garp_port is rcu protected : (struct garp_port)->applicants is rcu protected : add __rcu annotation and proper rcu primitives. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | ipv6: ip6_ptr rcu annotationsEric Dumazet2010-10-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | (struct net_device)->ip6_ptr is rcu protected : add __rcu annotation and proper rcu primitives. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | vlan: rcu annotationsEric Dumazet2010-10-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | (struct net_device)->vlgrp is rcu protected : add __rcu annotation and proper rcu primitives. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: Increase xmit RECURSION_LIMIT to 10.David S. Miller2010-10-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Three is definitely too low, and we know from reports that GRE tunnels stacked as deeply as 37 levels cause stack overflows, so pick some reasonable value between those two. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | l2tp: static functions should not be exportedStephen Rothwell2010-10-241-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Causes these build failures on PowerPC: net/l2tp/l2tp_core.c:1228: error: __ksymtab_l2tp_tunnel_closeall causes a section type conflict net/l2tp/l2tp_core.c:1228: error: __ksymtab_l2tp_tunnel_closeall causes a section type conflict net/l2tp/l2tp_core.c:1006: error: __ksymtab_l2tp_xmit_core causes a section type conflict net/l2tp/l2tp_core.c:1006: error: __ksymtab_l2tp_xmit_core causes a section type conflict net/l2tp/l2tp_core.c:847: error: __ksymtab_l2tp_udp_recv_core causes a section type conflict net/l2tp/l2tp_core.c:847: error: __ksymtab_l2tp_udp_recv_core causes a section type conflict Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | netlink: fix netlink_change_ngroups()Eric Dumazet2010-10-241-41/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 6c04bb18ddd633 (netlink: use call_rcu for netlink_change_ngroups) used a somewhat convoluted and racy way to perform call_rcu(). The old block of memory is freed after a grace period, but the rcu_head used to track it is located in new block. This can clash if we call two times or more netlink_change_ngroups(), and a block is freed before another. call_rcu() called on different cpus makes no guarantee in order of callbacks. Fix this using a more standard way of handling this : Each block of memory contains its own rcu_head, so that no 'use after free' can happens. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Johannes Berg <johannes@sipsolutions.net> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | tproxy: Add missing CAP_NET_ADMIN check to ipv6 sideBalazs Scheidler2010-10-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IP_TRANSPARENT requires root (more precisely CAP_NET_ADMIN privielges) for IPV6. However as I see right now this check was missed from the IPv6 implementation. Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | ip6_tunnel dont update the mtu on the route.Anders Franzen2010-10-241-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ip6_tunnel device did not unset the flag, IFF_XMIT_DST_RELEASE. This will make the dev layer to release the dst before calling the tunnel. The tunnel will not update any mtu/pmtu info, since it does not have a dst on the skb. Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | pktgen: clean up handling of local/transient counter varsPaul Gortmaker2010-10-241-15/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The temporary variable "i" is needlessly initialized to zero in two distinct cases in this file: 1) where it is set to zero and then used as an argument in an addition before being assigned a non-zero value. 2) where it is only used in a standard/typical loop counter For (1), simply delete assignment to zero and usages while still zero; for (2) simply make the loop start at zero as per standard practice as seen everywhere else in the same file. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | l2tp: make local function staticstephen hemminger2010-10-243-44/+41
| |/ | | | | | | | | | | | | | | | | Also moved the refcound inlines from l2tp_core.h to l2tp_core.c since only used in that one file. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'for-linus' of ↵Linus Torvalds2010-10-262-1/+3
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (52 commits) split invalidate_inodes() fs: skip I_FREEING inodes in writeback_sb_inodes fs: fold invalidate_list into invalidate_inodes fs: do not drop inode_lock in dispose_list fs: inode split IO and LRU lists fs: switch bdev inode bdi's correctly fs: fix buffer invalidation in invalidate_list fsnotify: use dget_parent smbfs: use dget_parent exportfs: use dget_parent fs: use RCU read side protection in d_validate fs: clean up dentry lru modification fs: split __shrink_dcache_sb fs: improve DCACHE_REFERENCED usage fs: use percpu counter for nr_dentry and nr_dentry_unused fs: simplify __d_free fs: take dcache_lock inside __d_path fs: do not assign default i_ino in new_inode fs: introduce a per-cpu last_ino allocator new helper: ihold() ...
| * | fs: do not assign default i_ino in new_inodeChristoph Hellwig2010-10-252-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of always assigning an increasing inode number in new_inode move the call to assign it into those callers that actually need it. For now callers that need it is estimated conservatively, that is the call is added to all filesystems that do not assign an i_ino by themselves. For a few more filesystems we can avoid assigning any inode number given that they aren't user visible, and for others it could be done lazily when an inode number is actually needed, but that's left for later patches. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | new helper: ihold()Al Viro2010-10-251-1/+1
| | | | | | | | | | | | | | | | | | Clones an existing reference to inode; caller must already hold one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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