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2009-04-20syncookies: remove last_synq_overflow from struct tcp_sockFlorian Westphal
last_synq_overflow eats 4 or 8 bytes in struct tcp_sock, even though it is only used when a listening sockets syn queue is full. We can (ab)use rx_opt.ts_recent_stamp to store the same information; it is not used otherwise as long as a socket is in listen state. Move linger2 around to avoid splitting struct mtu_probe across cacheline boundary on 32 bit arches. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-17[PATCH] net: remove superfluous call to synchronize_net()Eric Dumazet
inet_register_protosw() function is responsible for adding a new inet protocol into a global table (inetsw[]) that is used with RCU rules. As soon as the store of the pointer is done, other cpus might see this new protocol in inetsw[], so we have to make sure new protocol is ready for use. All pending memory updates should thus be committed to memory before setting the pointer. This is correctly done using rcu_assign_pointer() synchronize_net() is typically used at unregister time, after unsetting the pointer, to make sure no other cpu is still using the object we want to dismantle. Using it at register time is only adding an artificial delay that could hide a real bug, and this bug could popup if/when synchronize_rcu() can proceed faster than now. This saves about 13 ms on boot time on a HZ=1000 8 cpus machine ;) (4 calls to inet_register_protosw(), and about 3200 us per call) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-16Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2009-04-16Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2009-04-16netfilter: nf_nat: add support for persistent mappingsPatrick McHardy
The removal of the SAME target accidentally removed one feature that is not available from the normal NAT targets so far, having multi-range mappings that use the same mapping for each connection from a single client. The current behaviour is to choose the address from the range based on source and destination IP, which breaks when communicating with sites having multiple addresses that require all connections to originate from the same IP address. Introduce a IP_NAT_RANGE_PERSISTENT option that controls whether the destination address is taken into account for selecting addresses. http://bugzilla.kernel.org/show_bug.cgi?id=12954 Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-04-16gro: New frags interface to avoid copying shinfoHerbert Xu
It turns out that copying a 16-byte area at ~800k times a second can be really expensive :) This patch redesigns the frags GRO interface to avoid copying that area twice. The two disciples of the frags interface have been converted. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-15netfilter: nf_conntrack: fix crash when unloading helpersPatrick McHardy
Commit ea781f197d (netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and) get rid of call_rcu() was missing one conversion to the hlist_nulls functions, causing a crash when unloading conntrack helper modules. Reported-and-tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-04-15packet: avoid warnings when high-order page allocation failsEric Dumazet
Latest tcpdump/libpcap triggers annoying messages because of high order page allocation failures (when lowmem exhausted or fragmented) These allocation errors are correctly handled so could be silent. [22660.208901] tcpdump: page allocation failure. order:5, mode:0xc0d0 [22660.208921] Pid: 13866, comm: tcpdump Not tainted 2.6.30-rc2 #170 [22660.208936] Call Trace: [22660.208950] [<c04e2b46>] ? printk+0x18/0x1a [22660.208965] [<c02760f7>] __alloc_pages_internal+0x357/0x460 [22660.208980] [<c0276251>] __get_free_pages+0x21/0x40 [22660.208995] [<c04cc835>] packet_set_ring+0x105/0x3d0 [22660.209009] [<c04ccd1d>] packet_setsockopt+0x21d/0x4d0 [22660.209025] [<c0270400>] ? filemap_fault+0x0/0x450 [22660.209040] [<c0449e34>] sys_setsockopt+0x54/0xa0 [22660.209053] [<c044b97f>] sys_socketcall+0xef/0x270 [22660.209067] [<c0202e34>] sysenter_do_call+0x12/0x26 Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-15netfilter: nf_log regression fixEric Dumazet
commit ca735b3aaa945626ba65a3e51145bfe4ecd9e222 'netfilter: use a linked list of loggers' introduced an array of list_head in "struct nf_logger", but forgot to initialize it in nf_log_register(). This resulted in oops when calling nf_log_unregister() at module unload time. Reported-and-tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Eric Leblond <eric@inl.fr> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-04-14Revert "rose: zero length frame filtering in af_rose.c"David S. Miller
This reverts commit 244f46ae6e9e18f6fc0be7d1f49febde4762c34b. Alan Cox did the research, and just like the other radio protocols zero-length frames have meaning because at the top level ROSE is X.25 PLP. So this zero-length filtering is invalid. Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-14gro: Restore correct value to gso_sizeHerbert Xu
Since everybody has been focusing on baremetal GRO performance no one noticed when I added a bug that zapped gso_size for all GRO packets. This only gets picked up when you forward the skb out of an interface. Thanks to Mark Wagner for noticing this bug when testing kvm. Reported-by: Mark Wagner <mwagner@redhat.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-14ipv6:remove useless checkYang Hongyang
After switch (rthdr->type) {...},the check below is completely useless.Because: if the type is 2,then hdrlen must be 2 and segments_left must be 1,clearly the check is redundant;if the type is not 2,then goto sticky_done,the check is useless too. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-14tcp: fix >2 iw selectionIlpo Järvinen
A long-standing feature in tcp_init_metrics() is such that any of its goto reset prevents call to tcp_init_cwnd(). Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13netsched: Allow meta match on vlan tag on receiveStephen Hemminger
When vlan acceleration is used on receive, the vlan tag is maintained outside of the skb data. The existing vlan tag match only works on TX path because it uses vlan_get_tag which tests for VLAN_HW_TX_ACCEL. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-13gro: Normalise skb before bypassing GRO on netpoll VLAN pathHerbert Xu
Hi: gro: Normalise skb before bypassing GRO on netpoll VLAN path When we detect netpoll RX on the GRO VLAN path we bail out and call the normal VLAN receive handler. However, the packet needs to be normalised by calling eth_type_trans since that's what the normal path expects (normally the GRO path does the fixup). This patch adds the necessary call to vlan_gro_frags. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Thanks, Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-11ipv6: Fix NULL pointer dereference with time-wait socketsVlad Yasevich
Commit b2f5e7cd3dee2ed721bf0675e1a1ddebb849aee6 (ipv6: Fix conflict resolutions during ipv6 binding) introduced a regression where time-wait sockets were not treated correctly. This resulted in the following: BUG: unable to handle kernel NULL pointer dereference at 0000000000000062 IP: [<ffffffff805d7d61>] ipv4_rcv_saddr_equal+0x61/0x70 ... Call Trace: [<ffffffffa033847b>] ipv6_rcv_saddr_equal+0x1bb/0x250 [ipv6] [<ffffffffa03505a8>] inet6_csk_bind_conflict+0x88/0xd0 [ipv6] [<ffffffff805bb18e>] inet_csk_get_port+0x1ee/0x400 [<ffffffffa0319b7f>] inet6_bind+0x1cf/0x3a0 [ipv6] [<ffffffff8056d17c>] ? sockfd_lookup_light+0x3c/0xd0 [<ffffffff8056ed49>] sys_bind+0x89/0x100 [<ffffffff80613ea2>] ? trace_hardirqs_on_thunk+0x3a/0x3c [<ffffffff8020bf9b>] system_call_fastpath+0x16/0x1b Tested-by: Brian Haley <brian.haley@hp.com> Tested-by: Ed Tomlinson <edt@aei.ca> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-11tr: fix leakage of device in net/802/tr.cWei Yongjun
Add dev_put() after dev_get_by_index() to avoid leakage of device. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-11net: netif_device_attach/detach should start/stop all queuesAlexander Duyck
Currently netif_device_attach/detach are only stopping one queue. They should be starting and stopping all the queues on a given device. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09ERR_PTR() dereference in net/rds/ib.cDan Carpenter
rdma_create_id() doesn't return NULL, only ERR_PTR(). Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested. regards, dan carpenter Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09ERR_PTR() dereference in net/rds/iw.cDan Carpenter
rdma_create_id() returns ERR_PTR() not null. Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested. regards, dan carpenter Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09rds: use kmem_cache_zalloc instead of kmem_cache_alloc/memsetWei Yongjun
Use kmem_cache_zalloc instead of kmem_cache_alloc/memset. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09RDS: remove unused #include <version.h>Huang Weiyi
Remove unused #include <version.h> in net/rds/af_rds.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09RDS: use get_user_pages_fast()Andy Grover
Use the new function that is simpler and faster. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09RDS: Establish connection before parsing CMSGsAndy Grover
The first message to a remote node should prompt a new connection. Even an RDMA op via CMSG. Therefore move CMSG parsing to after connection establishment. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09RDS: Fix ordering in a conditionalAndy Grover
Putting the constant first is a supposed "best practice" that actually makes the code harder to read. Thanks to Roland Dreier for finding a bug in this "simple, obviously correct" patch. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09RDS/IW+IB: Allow max credit advertise window.Steve Wise
Fix hack that restricts the credit advertisement to 127. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09RDS/IW+IB: Set the RDS_LL_SEND_FULL bit when we're throttled.Steve Wise
The RDS_LL_SEND_FULL bit should be set when we stop transmitted due to flow control. Otherwise the send worker will keep trying as opposed to sleeping until we unthrottle. Saves CPU. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09RDS: Correct some iw references in rdma_transport.cAndy Grover
Had some lingering instances of _iw_ variable names from when the listen code was centralized into rdma_transport.c Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-09RDS/IW+IB: Set recv ring low water mark to 1/2 full.Steve Wise
Currently the recv ring low water mark is 1/4 the depth. Performance measurements show that this limits iWARP throughput by flow controlling the rds-stress senders. Setting it to 1/2 seems to max the T3 performance. I tried even higher levels but that didn't help and it started to increase the rds thread cpu utilization. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2009-04-06Merge 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: b44: Use kernel DMA addresses for the kernel DMA API forcedeth: Fix resume from hibernation regression. xfrm: fix fragmentation on inter family tunnels ibm_newemac: Fix dangerous struct assumption gigaset: documentation update gigaset: in file ops, check for device disconnect before anything else bas_gigaset: use tasklet_hi_schedule for timing critical tasklets net/802/fddi.c: add MODULE_LICENSE smsc911x: remove unused #include <linux/version.h> axnet_cs: fix phy_id detection for bogus Asix chip. bnx2: Use request_firmware() b44: Fix sizes passed to b44_sync_dma_desc_for_{device,cpu}() socket: use percpu_add() while updating sockets_in_use virtio_net: Set the mac config only when VIRITO_NET_F_MAC myri_sbus: use request_firmware e1000: fix loss of multicast packets vxge: should include tcp.h Conflict in firmware/WHENCE (SCSI vs net firmware)
2009-04-06xfrm: fix fragmentation on inter family tunnelsSteffen Klassert
If an ipv4 packet (not locally generated with IP_DF flag not set) bigger than mtu size is supposed to go via a xfrm ipv6 tunnel, the packetsize check in xfrm4_tunnel_check_size() is omited and ipv6 drops the packet without sending a notice to the original sender of the ipv4 packet. Another issue is that ipv4 connection tracking does reassembling of incomming fragmented packets. If such a reassembled packet is supposed to go via a xfrm ipv6 tunnel it will be droped, even if the original sender did proper fragmentation. According to RFC 2473 (section 7) tunnel ipv6 packets resulting from the encapsulation of an original packet are considered as locally generated packets. If such a packet passed the checks in xfrm{4,6}_tunnel_check_size() fragmentation is allowed according to RFC 2473 (section 7.1/7.2). This patch sets skb->local_df in xfrm6_prepare_output() to achieve fragmentation in this case. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-06net/802/fddi.c: add MODULE_LICENSEAdrian Bunk
This patch adds the missing MODULE_LICENSE("GPL"). Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-06Merge branch 'for-2.6.30' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.30' of git://linux-nfs.org/~bfields/linux: (81 commits) nfsd41: define nfsd4_set_statp as noop for !CONFIG_NFSD_V4 nfsd41: define NFSD_DRC_SIZE_SHIFT in set_max_drc nfsd41: Documentation/filesystems/nfs41-server.txt nfsd41: CREATE_EXCLUSIVE4_1 nfsd41: SUPPATTR_EXCLCREAT attribute nfsd41: support for 3-word long attribute bitmask nfsd: dynamically skip encoded fattr bitmap in _nfsd4_verify nfsd41: pass writable attrs mask to nfsd4_decode_fattr nfsd41: provide support for minor version 1 at rpc level nfsd41: control nfsv4.1 svc via /proc/fs/nfsd/versions nfsd41: add OPEN4_SHARE_ACCESS_WANT nfs4_stateid bmap nfsd41: access_valid nfsd41: clientid handling nfsd41: check encode size for sessions maxresponse cached nfsd41: stateid handling nfsd: pass nfsd4_compound_state* to nfs4_preprocess_{state,seq}id_op nfsd41: destroy_session operation nfsd41: non-page DRC for solo sequence responses nfsd41: Add a create session replay cache nfsd41: create_session operation ...
2009-04-06netfilter: ctnetlink: fix regression in expectation handlingPablo Neira Ayuso
This patch fixes a regression (introduced by myself in commit 19abb7b: netfilter: ctnetlink: deliver events for conntracks changed from userspace) that results in an expectation re-insertion since __nf_ct_expect_check() may return 0 for expectation timer refreshing. This patch also removes a unnecessary refcount bump that pretended to avoid a possible race condition with event delivery and expectation timers (as said, not needed since we hold a reference to the object since until we finish the expectation setup). This also merges nf_ct_expect_related_report() and nf_ct_expect_related() which look basically the same. Reported-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-04-06netfilter: fix selection of "LED" target in netfilterAlex Riesen
It's plural, not LED_TRIGGERS. Signed-off-by: Alex Riesen <fork0@users.sourceforge.net> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-04-06netfilter: ip6tables regression fixEric Dumazet
Commit 7845447 (netfilter: iptables: lock free counters) broke ip6_tables by unconditionally returning ENOMEM in alloc_counters(), Reported-by: Graham Murray <graham@gmurray.org.uk> Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-04-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumaskLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask: (36 commits) cpumask: remove cpumask allocation from idle_balance, fix numa, cpumask: move numa_node_id default implementation to topology.h, fix cpumask: remove cpumask allocation from idle_balance x86: cpumask: x86 mmio-mod.c use cpumask_var_t for downed_cpus x86: cpumask: update 32-bit APM not to mug current->cpus_allowed x86: microcode: cleanup x86: cpumask: use work_on_cpu in arch/x86/kernel/microcode_core.c cpumask: fix CONFIG_CPUMASK_OFFSTACK=y cpu hotunplug crash numa, cpumask: move numa_node_id default implementation to topology.h cpumask: convert node_to_cpumask_map[] to cpumask_var_t cpumask: remove x86 cpumask_t uses. cpumask: use cpumask_var_t in uv_flush_tlb_others. cpumask: remove cpumask_t assignment from vector_allocation_domain() cpumask: make Xen use the new operators. cpumask: clean up summit's send_IPI functions cpumask: use new cpumask functions throughout x86 x86: unify cpu_callin_mask/cpu_callout_mask/cpu_initialized_mask/cpu_sibling_setup_mask cpumask: convert struct cpuinfo_x86's llc_shared_map to cpumask_var_t cpumask: convert node_to_cpumask_map[] to cpumask_var_t x86: unify 32 and 64-bit node_to_cpumask_map ...
2009-04-04socket: use percpu_add() while updating sockets_in_useEric Dumazet
sock_alloc() currently uses following code to update sockets_in_use get_cpu_var(sockets_in_use)++; put_cpu_var(sockets_in_use); This translates to : c0436274: b8 01 00 00 00 mov $0x1,%eax c0436279: e8 42 40 df ff call c022a2c0 <add_preempt_count> c043627e: bb 20 4f 6a c0 mov $0xc06a4f20,%ebx c0436283: e8 18 ca f0 ff call c0342ca0 <debug_smp_processor_id> c0436288: 03 1c 85 60 4a 65 c0 add -0x3f9ab5a0(,%eax,4),%ebx c043628f: ff 03 incl (%ebx) c0436291: b8 01 00 00 00 mov $0x1,%eax c0436296: e8 75 3f df ff call c022a210 <sub_preempt_count> c043629b: 89 e0 mov %esp,%eax c043629d: 25 00 e0 ff ff and $0xffffe000,%eax c04362a2: f6 40 08 08 testb $0x8,0x8(%eax) c04362a6: 75 07 jne c04362af <sock_alloc+0x7f> c04362a8: 8d 46 d8 lea -0x28(%esi),%eax c04362ab: 5b pop %ebx c04362ac: 5e pop %esi c04362ad: c9 leave c04362ae: c3 ret c04362af: e8 cc 5d 09 00 call c04cc080 <preempt_schedule> c04362b4: 8d 74 26 00 lea 0x0(%esi,%eiz,1),%esi c04362b8: eb ee jmp c04362a8 <sock_alloc+0x78> While percpu_add(sockets_in_use, 1) translates to a single instruction : c0436275: 64 83 05 20 5f 6a c0 addl $0x1,%fs:0xc06a5f20 Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-03nfsd: don't use the deferral service, return NFS4ERR_DELAYAndy Adamson
On an NFSv4.1 server cache miss that causes an upcall, NFS4ERR_DELAY will be returned. It is up to the NFSv4.1 client to resend only the operations that have not been processed. Initialize rq_usedeferral to 1 in svc_process(). It sill be turned off in nfsd4_proc_compound() only when NFSv4.1 Sessions are used. Note: this isn't an adequate solution on its own. It's acceptable as a way to get some minimal 4.1 up and working, but we're going to have to find a way to avoid returning DELAY in all common cases before 4.1 can really be considered ready. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> [nfsd41: reverse rq_nodeferral negative logic] Signed-off-by: Benny Halevy <bhalevy@panasas.com> [sunrpc: initialize rq_usedeferral] Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2009-04-03Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits) trivial: Update my email address trivial: NULL noise: drivers/mtd/tests/mtd_*test.c trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h trivial: Fix misspelling of "Celsius". trivial: remove unused variable 'path' in alloc_file() trivial: fix a pdlfush -> pdflush typo in comment trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL trivial: wusb: Storage class should be before const qualifier trivial: drivers/char/bsr.c: Storage class should be before const qualifier trivial: h8300: Storage class should be before const qualifier trivial: fix where cgroup documentation is not correctly referred to trivial: Give the right path in Documentation example trivial: MTD: remove EOL from MODULE_DESCRIPTION trivial: Fix typo in bio_split()'s documentation trivial: PWM: fix of #endif comment trivial: fix typos/grammar errors in Kconfig texts trivial: Fix misspelling of firmware trivial: cgroups: documentation typo and spelling corrections trivial: Update contact info for Jochen Hein trivial: fix typo "resgister" -> "register" ...
2009-04-02Merge branch 'for-linus' of ↵Linus Torvalds
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: Remove two unneeded exports and make two symbols static in fs/mpage.c Cleanup after commit 585d3bc06f4ca57f975a5a1f698f65a45ea66225 Trim includes of fdtable.h Don't crap into descriptor table in binfmt_som Trim includes in binfmt_elf Don't mess with descriptor table in load_elf_binary() Get rid of indirect include of fs_struct.h New helper - current_umask() check_unsafe_exec() doesn't care about signal handlers sharing New locking/refcounting for fs_struct Take fs_struct handling to new file (fs/fs_struct.c) Get rid of bumping fs_struct refcount in pivot_root(2) Kill unsharing fs_struct in __set_personality()
2009-04-02Merge 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: (54 commits) glge: remove unused #include <version.h> dnet: remove unused #include <version.h> tcp: miscounts due to tcp_fragment pcount reset tcp: add helper for counter tweaking due mid-wq change hso: fix for the 'invalid frame length' messages hso: fix for crash when unplugging the device fsl_pq_mdio: Fix compile failure fsl_pq_mdio: Revive UCC MDIO support ucc_geth: Pass proper device to DMA routines, otherwise oops happens i.MX31: Fixing cs89x0 network building to i.MX31ADS tc35815: Fix build error if NAPI enabled hso: add Vendor/Product ID's for new devices ucc_geth: Remove unused header gianfar: Remove unused header kaweth: Fix locking to be SMP-safe net: allow multiple dev per napi with GRO r8169: reset IntrStatus after chip reset ixgbe: Fix potential memory leak/driver panic issue while setting up Tx & Rx ring parameters ixgbe: fix ethtool -A|a behavior ixgbe: Patch to fix driver panic while freeing up tx & rx resources ...
2009-04-02tcp: miscounts due to tcp_fragment pcount resetIlpo Järvinen
It seems that trivial reset of pcount to one was not sufficient in tcp_retransmit_skb. Multiple counters experience a positive miscount when skb's pcount gets lowered without the necessary adjustments (depending on skb's sacked bits which exactly), at worst a packets_out miscount can crash at RTO if the write queue is empty! Triggering this requires mss change, so bidir tcp or mtu probe or like. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de> Tested-by: Uwe Bugla <uwe.bugla@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02tcp: add helper for counter tweaking due mid-wq changeIlpo Järvinen
We need full-scale adjustment to fix a TCP miscount in the next patch, so just move it into a helper and call for that from the other places. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02net: allow multiple dev per napi with GROStephen Hemminger
GRO assumes that there is a one-to-one relationship between NAPI structure and network device. Some devices like sky2 share multiple devices on a single interrupt so only have one NAPI handler. Rather than split GRO from NAPI, just have GRO assume if device changes that it is a different flow. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02netfilter: use rcu_read_bh() in ipt_do_table()Eric Dumazet
Commit 784544739a25c30637397ace5489eeb6e15d7d49 (netfilter: iptables: lock free counters) forgot to disable BH in arpt_do_table(), ipt_do_table() and ip6t_do_table() Use rcu_read_lock_bh() instead of rcu_read_lock() cures the problem. Reported-and-bisected-by: Roman Mindalev <r000n@r000n.net> Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Patrick McHardy <kaber@trash.net> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02RDS: Use spinlock to protect 64b value update on 32b archsAndy Grover
We have a 64bit value that needs to be set atomically. This is easy and quick on all 64bit archs, and can also be done on x86/32 with set_64bit() (uses cmpxchg8b). However other 32b archs don't have this. I actually changed this to the current state in preparation for mainline because the old way (using a spinlock on 32b) resulted in unsightly #ifdefs in the code. But obviously, being correct takes precedence. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02RDS: Rewrite connection cleanup, fixing oops on rmmodAndy Grover
This fixes a bug where a connection was unexpectedly not on *any* list while being destroyed. It also cleans up some code duplication and regularizes some function names. * Grab appropriate lock in conn_free() and explain in comment * Ensure via locking that a conn is never not on either a dev's list or the nodev list * Add rds_xx_remove_conn() to match rds_xx_add_conn() * Make rds_xx_add_conn() return void * Rename remove_{,nodev_}conns() to destroy_{,nodev_}conns() and unify their implementation in a helper function * Document lock ordering as nodev conn_lock before dev_conn_lock Reported-by: Yosef Etigin <yosefe@voltaire.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02RDS: Fix m_rs_lock deadlockAndy Grover
rs_send_drop_to() is called during socket close. If it takes m_rs_lock without disabling interrupts, then rds_send_remove_from_sock() can run from the rx completion handler and thus deadlock. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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