Commit Graph

16141 Commits

Author SHA1 Message Date
Linus Torvalds
f6cec0ae58 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (59 commits)
  igbvf.txt: Add igbvf Documentation
  igb.txt: Add igb documentation
  e100/e1000*/igb*/ixgb*: Add missing read memory barrier
  ixgbe: fix build error with FCOE_CONFIG without DCB_CONFIG
  netxen: protect tx timeout recovery by rtnl lock
  isdn: gigaset: use after free
  isdn: gigaset: add missing unlock
  solos-pci: Fix race condition in tasklet RX handling
  pkt_sched: Fix sch_sfq vs tcf_bind_filter oops
  net: disable preemption before call smp_processor_id()
  tcp: no md5sig option size check bug
  iwlwifi: fix locking assertions
  iwlwifi: fix TX tracer
  isdn: fix information leak
  net: Fix napi_gro_frags vs netpoll path
  usbnet: remove noisy and hardly useful printk
  rtl8180: avoid potential NULL deref in rtl8180_beacon_work
  ath9k: Remove myself from the MAINTAINERS list
  libertas: scan before assocation if no BSSID was given
  libertas: fix association with some APs by using extended rates
  ...
2010-08-09 21:05:52 -07:00
Jarek Poplawski
eb4a5527b1 pkt_sched: Fix sch_sfq vs tcf_bind_filter oops
Since there was added ->tcf_chain() method without ->bind_tcf() to
sch_sfq class options, there is oops when a filter is added with
the classid parameter.

Fixes commit 7d2681a6ff
netdev thread: null pointer at cls_api.c

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Reported-by: Franchoze Eric <franchoze@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-07 22:45:41 -07:00
Changli Gao
cece1945bf net: disable preemption before call smp_processor_id()
Although netif_rx() isn't expected to be called in process context with
preemption enabled, it'd better handle this case. And this is why get_cpu()
is used in the non-RPS #ifdef branch. If tree RCU is selected,
rcu_read_lock() won't disable preemption, so preempt_disable() should be
called explictly.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-07 20:35:43 -07:00
Dmitry Popov
ba78e2ddca tcp: no md5sig option size check bug
tcp_parse_md5sig_option doesn't check md5sig option (TCPOPT_MD5SIG)
length, but tcp_v[46]_inbound_md5_hash assume that it's at least 16
bytes long.

Signed-off-by: Dmitry Popov <dp@highloadlab.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-07 20:24:28 -07:00
Linus Torvalds
0d9f9e122c Merge branch 'for-2.6.36' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.36' of git://linux-nfs.org/~bfields/linux: (34 commits)
  nfsd4: fix file open accounting for RDWR opens
  nfsd: don't allow setting maxblksize after svc created
  nfsd: initialize nfsd versions before creating svc
  net: sunrpc: removed duplicated #include
  nfsd41: Fix a crash when a callback is retried
  nfsd: fix startup/shutdown order bug
  nfsd: minor nfsd read api cleanup
  gcc-4.6: nfsd: fix initialized but not read warnings
  nfsd4: share file descriptors between stateid's
  nfsd4: fix openmode checking on IO using lock stateid
  nfsd4: miscellaneous process_open2 cleanup
  nfsd4: don't pretend to support write delegations
  nfsd: bypass readahead cache when have struct file
  nfsd: minor nfsd_svc() cleanup
  nfsd: move more into nfsd_startup()
  nfsd: just keep single lockd reference for nfsd
  nfsd: clean up nfsd_create_serv error handling
  nfsd: fix error handling in __write_ports_addxprt
  nfsd: fix error handling when starting nfsd with rpcbind down
  nfsd4: fix v4 state shutdown error paths
  ...
2010-08-07 14:24:41 -07:00
Linus Torvalds
5df6b8e65a Merge branch 'nfs-for-2.6.36' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'nfs-for-2.6.36' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (42 commits)
  NFS: NFSv4.1 is no longer a "developer only" feature
  NFS: NFS_V4 is no longer an EXPERIMENTAL feature
  NFS: Fix /proc/mount for legacy binary interface
  NFS: Fix the locking in nfs4_callback_getattr
  SUNRPC: Defer deleting the security context until gss_do_free_ctx()
  SUNRPC: prevent task_cleanup running on freed xprt
  SUNRPC: Reduce asynchronous RPC task stack usage
  SUNRPC: Move the bound cred to struct rpc_rqst
  SUNRPC: Clean up of rpc_bindcred()
  SUNRPC: Move remaining RPC client related task initialisation into clnt.c
  SUNRPC: Ensure that rpc_exit() always wakes up a sleeping task
  SUNRPC: Make the credential cache hashtable size configurable
  SUNRPC: Store the hashtable size in struct rpc_cred_cache
  NFS: Ensure the AUTH_UNIX credcache is allocated dynamically
  NFS: Fix the NFS users of rpc_restart_call()
  SUNRPC: The function rpc_restart_call() should return success/failure
  NFSv4: Get rid of the bogus RPC_ASSASSINATED(task) checks
  NFSv4: Clean up the process of renewing the NFSv4 lease
  NFSv4.1: Handle NFS4ERR_DELAY on SEQUENCE correctly
  NFS: nfs_rename() should not have to flush out writebacks
  ...
2010-08-07 13:19:36 -07:00
Andrea Gelmini
e2aa7f8304 net: sunrpc: removed duplicated #include
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-08-06 17:05:39 -04:00
David S. Miller
e225567960 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-08-06 13:30:43 -07:00
Steve French
5227bbb008 [DNS RESOLVER] Minor typo correction
CC: Dave Howells <dhowells@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-06 03:18:09 +00:00
David Howells
ff9517a687 DNS: Fixes for the DNS query module
Fixes for the DNS query module, including:

 (1) Use 'negative' instead of '-ve' in the documentation.

 (2) Mark the kdoc comment with '/**' on dns_query().

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-06 02:26:27 +00:00
Stephen Rothwell
af352fe960 cifs: Include linux/err.h for IS_ERR and PTR_ERR
Fixes build errors:

net/dns_resolver/dns_key.c: In function 'init_dns_resolver':
net/dns_resolver/dns_key.c:170: error: implicit declaration of function 'IS_ERR'
net/dns_resolver/dns_key.c:171: error: implicit declaration of function 'PTR_ERR'
net/dns_resolver/dns_query.c: In function 'dns_query':
net/dns_resolver/dns_query.c:126: error: implicit declaration of function 'IS_ERR'
net/dns_resolver/dns_query.c:127: error: implicit declaration of function 'PTR_ERR'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-06 02:26:23 +00:00
Jarek Poplawski
ce9e76c845 net: Fix napi_gro_frags vs netpoll path
The netpoll_rx_on() check in __napi_gro_receive() skips part of the
"common" GRO_NORMAL path, especially "pull:" in dev_gro_receive(),
where at least eth header should be copied for entirely paged skbs.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-05 13:21:25 -07:00
John W. Linville
c0068c8589 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-next-2.6 2010-08-05 15:54:28 -04:00
Wang Lei
1a4240f476 DNS: Separate out CIFS DNS Resolver code
Separate out the DNS resolver key type from the CIFS filesystem into its own
module so that it can be made available for general use, including the AFS
filesystem module.

This facility makes it possible for the kernel to upcall to userspace to have
it issue DNS requests, package up the replies and present them to the kernel
in a useful form.  The kernel is then able to cache the DNS replies as keys
can be retained in keyrings.

Resolver keys are of type "dns_resolver" and have a case-insensitive
description that is of the form "[<type>:]<domain_name>".  The optional <type>
indicates the particular DNS lookup and packaging that's required.  The
<domain_name> is the query to be made.

If <type> isn't given, a basic hostname to IP address lookup is made, and the
result is stored in the key in the form of a printable string consisting of a
comma-separated list of IPv4 and IPv6 addresses.

This key type is supported by userspace helpers driven from /sbin/request-key
and configured through /etc/request-key.conf.  The cifs.upcall utility is
invoked for UNC path server name to IP address resolution.

The CIFS functionality is encapsulated by the dns_resolve_unc_to_ip() function,
which is used to resolve a UNC path to an IP address for CIFS filesystem.  This
part remains in the CIFS module for now.

See the added Documentation/networking/dns_resolver.txt for more information.

Signed-off-by: Wang Lei <wang840925@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-08-05 17:17:51 +00:00
stephen hemminger
d7100da026 ppp: make channel_ops const
The PPP channel ops structure should be const.
Cleanup the declarations to use standard C99 format.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04 21:53:17 -07:00
David Howells
3b5bac2bde RxRPC: Fix a potential deadlock between the call resend_timer and state_lock
RxRPC can potentially deadlock as rxrpc_resend_time_expired() wants to get
call->state_lock so that it can alter the state of an RxRPC call.  However, its
caller (call_timer_fn()) has an apparent lock on the timer struct.

The problem is that rxrpc_resend_time_expired() isn't permitted to lock
call->state_lock as this could cause a deadlock against rxrpc_send_abort() as
that takes state_lock and then attempts to delete the resend timer by calling
del_timer_sync().

The deadlock can occur because del_timer_sync() will sit there forever waiting
for rxrpc_resend_time_expired() to return, but the latter may then wait for
call->state_lock, which rxrpc_send_abort() holds around del_timer_sync()...

This leads to a warning appearing in the kernel log that looks something like
the attached.

It should be sufficient to simply dispense with the locks.  It doesn't matter
if we set the resend timer expired event bit and queue the event processor
whilst we're changing state to one where the resend timer is irrelevant as the
event can just be ignored by the processor thereafter.

=======================================================
[ INFO: possible circular locking dependency detected ]
2.6.35-rc3-cachefs+ #115
-------------------------------------------------------
swapper/0 is trying to acquire lock:
 (&call->state_lock){++--..}, at: [<ffffffffa00200d4>] rxrpc_resend_time_expired+0x56/0x96 [af_rxrpc]

but task is already holding lock:
 (&call->resend_timer){+.-...}, at: [<ffffffff8103b675>] run_timer_softirq+0x182/0x2a5

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (&call->resend_timer){+.-...}:
       [<ffffffff810560bc>] __lock_acquire+0x889/0x8fa
       [<ffffffff81056184>] lock_acquire+0x57/0x6d
       [<ffffffff8103bb9c>] del_timer_sync+0x3c/0x86
       [<ffffffffa002bb7a>] rxrpc_send_abort+0x50/0x97 [af_rxrpc]
       [<ffffffffa002bdd9>] rxrpc_kernel_abort_call+0xa1/0xdd [af_rxrpc]
       [<ffffffffa0061588>] afs_deliver_to_call+0x129/0x368 [kafs]
       [<ffffffffa006181b>] afs_process_async_call+0x54/0xff [kafs]
       [<ffffffff8104261d>] worker_thread+0x1ef/0x2e2
       [<ffffffff81045f47>] kthread+0x7a/0x82
       [<ffffffff81002cd4>] kernel_thread_helper+0x4/0x10

-> #0 (&call->state_lock){++--..}:
       [<ffffffff81055237>] validate_chain+0x727/0xd23
       [<ffffffff810560bc>] __lock_acquire+0x889/0x8fa
       [<ffffffff81056184>] lock_acquire+0x57/0x6d
       [<ffffffff813e6b69>] _raw_read_lock_bh+0x34/0x43
       [<ffffffffa00200d4>] rxrpc_resend_time_expired+0x56/0x96 [af_rxrpc]
       [<ffffffff8103b6e6>] run_timer_softirq+0x1f3/0x2a5
       [<ffffffff81036828>] __do_softirq+0xa2/0x13e
       [<ffffffff81002dcc>] call_softirq+0x1c/0x28
       [<ffffffff810049f0>] do_softirq+0x38/0x80
       [<ffffffff810361a2>] irq_exit+0x45/0x47
       [<ffffffff81018fb3>] smp_apic_timer_interrupt+0x88/0x96
       [<ffffffff81002893>] apic_timer_interrupt+0x13/0x20
       [<ffffffff810011ac>] cpu_idle+0x4d/0x83
       [<ffffffff813e06f3>] start_secondary+0x1bd/0x1c1

other info that might help us debug this:

1 lock held by swapper/0:
 #0:  (&call->resend_timer){+.-...}, at: [<ffffffff8103b675>] run_timer_softirq+0x182/0x2a5

stack backtrace:
Pid: 0, comm: swapper Not tainted 2.6.35-rc3-cachefs+ #115
Call Trace:
 <IRQ>  [<ffffffff81054414>] print_circular_bug+0xae/0xbd
 [<ffffffff81055237>] validate_chain+0x727/0xd23
 [<ffffffff810560bc>] __lock_acquire+0x889/0x8fa
 [<ffffffff810539a7>] ? mark_lock+0x42f/0x51f
 [<ffffffff81056184>] lock_acquire+0x57/0x6d
 [<ffffffffa00200d4>] ? rxrpc_resend_time_expired+0x56/0x96 [af_rxrpc]
 [<ffffffff813e6b69>] _raw_read_lock_bh+0x34/0x43
 [<ffffffffa00200d4>] ? rxrpc_resend_time_expired+0x56/0x96 [af_rxrpc]
 [<ffffffffa00200d4>] rxrpc_resend_time_expired+0x56/0x96 [af_rxrpc]
 [<ffffffff8103b6e6>] run_timer_softirq+0x1f3/0x2a5
 [<ffffffff8103b675>] ? run_timer_softirq+0x182/0x2a5
 [<ffffffffa002007e>] ? rxrpc_resend_time_expired+0x0/0x96 [af_rxrpc]
 [<ffffffff810367ef>] ? __do_softirq+0x69/0x13e
 [<ffffffff81036828>] __do_softirq+0xa2/0x13e
 [<ffffffff81002dcc>] call_softirq+0x1c/0x28
 [<ffffffff810049f0>] do_softirq+0x38/0x80
 [<ffffffff810361a2>] irq_exit+0x45/0x47
 [<ffffffff81018fb3>] smp_apic_timer_interrupt+0x88/0x96
 [<ffffffff81002893>] apic_timer_interrupt+0x13/0x20
 <EOI>  [<ffffffff81049de1>] ? __atomic_notifier_call_chain+0x0/0x86
 [<ffffffff8100955b>] ? mwait_idle+0x6e/0x78
 [<ffffffff81009552>] ? mwait_idle+0x65/0x78
 [<ffffffff810011ac>] cpu_idle+0x4d/0x83
 [<ffffffff813e06f3>] start_secondary+0x1bd/0x1c1

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04 21:53:16 -07:00
Changli Gao
f2f009812f sch_sfq: add sanity check for the packet length
The packet length should be checked before the packet data is dereferenced.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04 21:53:16 -07:00
Changli Gao
12dc96d167 cls_rsvp: add sanity check for the packet length
The packet length should be checked before the packet data is dereferenced.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04 21:53:15 -07:00
Changli Gao
4b95c3d40d cls_flow: add sanity check for the packet length
The packet length should be checked before the packet data is dereferenced.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04 21:53:15 -07:00
Changli Gao
36d12690a2 act_nat: fix on the TX path
On the TX path, skb->data points to the ethernet header, not the network
header. So when validating the packet length for accessing we should
take the ethernet header into account.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-04 21:53:14 -07:00
Linus Torvalds
3cfc2c42c1 Merge branch 'for-next' of 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: (48 commits)
  Documentation: update broken web addresses.
  fix comment typo "choosed" -> "chosen"
  hostap:hostap_hw.c Fix typo in comment
  Fix spelling contorller -> controller in comments
  Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault
  fs/Kconfig: Fix typo Userpace -> Userspace
  Removing dead MACH_U300_BS26
  drivers/infiniband: Remove unnecessary casts of private_data
  fs/ocfs2: Remove unnecessary casts of private_data
  libfc: use ARRAY_SIZE
  scsi: bfa: use ARRAY_SIZE
  drm: i915: use ARRAY_SIZE
  drm: drm_edid: use ARRAY_SIZE
  synclink: use ARRAY_SIZE
  block: cciss: use ARRAY_SIZE
  comment typo fixes: charater => character
  fix comment typos concerning "challenge"
  arm: plat-spear: fix typo in kerneldoc
  reiserfs: typo comment fix
  update email address
  ...
2010-08-04 15:31:02 -07:00
Juuso Oikarinen
93c08c3291 mac80211: Fix compilation warning when CONFIG_INET is not set
The warning is:
  net/mac80211/main.c:688: warning: label ‘fail_ifa’ defined but not used

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-04 15:28:37 -04:00
Johannes Berg
1601b1e56e mac80211: fix scan locking wrt. hw scan
Releasing the scan mutex while starting scans
can lead to unexpected things happening, so
we shouldn't do that. Fix that and hold the
mutex across the scan triggering.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-04 15:27:36 -04:00
Linus Torvalds
6ba74014c1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1443 commits)
  phy/marvell: add 88ec048 support
  igb: Program MDICNFG register prior to PHY init
  e1000e: correct MAC-PHY interconnect register offset for 82579
  hso: Add new product ID
  can: Add driver for esd CAN-USB/2 device
  l2tp: fix export of header file for userspace
  can-raw: Fix skb_orphan_try handling
  Revert "net: remove zap_completion_queue"
  net: cleanup inclusion
  phy/marvell: add 88e1121 interface mode support
  u32: negative offset fix
  net: Fix a typo from "dev" to "ndev"
  igb: Use irq_synchronize per vector when using MSI-X
  ixgbevf: fix null pointer dereference due to filter being set for VLAN 0
  e1000e: Fix irq_synchronize in MSI-X case
  e1000e: register pm_qos request on hardware activation
  ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice
  net: Add getsockopt support for TCP thin-streams
  cxgb4: update driver version
  cxgb4: add new PCI IDs
  ...

Manually fix up conflicts in:
 - drivers/net/e1000e/netdev.c: due to pm_qos registration
   infrastructure changes
 - drivers/net/phy/marvell.c: conflict between adding 88ec048 support
   and cleaning up the IDs
 - drivers/net/wireless/ipw2x00/ipw2100.c: trivial ipw2100_pm_qos_req
   conflict (registration change vs marking it static)
2010-08-04 11:47:58 -07:00
Ville Tervo
adb08edea0 Bluetooth: Check result code of L2CAP information response
Check result code of L2CAP information response. Otherwise
it would read invalid feature mask and access invalid memory.

Signed-off-by: Ville Tervo <ville.tervo@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-08-04 07:25:17 -07:00
Gustavo F. Padovan
6340650400 Bluetooth: Don't send RFC for Basic Mode if only it is supported
If the remote side doesn't support Enhanced Retransmission Mode neither
Streaming Mode, we shall not send the RFC option.

Some devices that only supports Basic Mode do not understanding the RFC
option. This patch fixes the regression found with these devices.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2010-08-04 07:23:00 -07:00
Jiri Kosina
d790d4d583 Merge branch 'master' into for-next 2010-08-04 15:14:38 +02:00
Trond Myklebust
0d8a374673 SUNRPC: Defer deleting the security context until gss_do_free_ctx()
There is no need to delete the gss context separately from the rest
of the security context information, and doing so gives rise to a
an rcu_dereference_check() warning.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:55:14 -04:00
J. Bruce Fields
c3ae62ae08 SUNRPC: prevent task_cleanup running on freed xprt
We saw a report of a NULL dereference in xprt_autoclose:

	https://bugzilla.redhat.com/show_bug.cgi?id=611938

This appears to be the result of an xprt's task_cleanup running after
the xprt is destroyed.  Nothing in the current code appears to prevent
that.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:54:10 -04:00
Trond Myklebust
d6a1ed08c6 SUNRPC: Reduce asynchronous RPC task stack usage
We should just farm out asynchronous RPC tasks immediately to rpciod...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:54:09 -04:00
Trond Myklebust
a17c2153d2 SUNRPC: Move the bound cred to struct rpc_rqst
This will allow us to save the original generic cred in rpc_message, so
that if we migrate from one server to another, we can generate a new bound
cred without having to punt back to the NFS layer.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:54:09 -04:00
Trond Myklebust
8572b8e2e3 SUNRPC: Clean up of rpc_bindcred()
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:54:08 -04:00
Trond Myklebust
58f9612c6e SUNRPC: Move remaining RPC client related task initialisation into clnt.c
Now that rpc_run_task() is the sole entry point for RPC calls, we can move
the remaining rpc_client-related initialisation of struct rpc_task from
sched.c into clnt.c.

Also move rpc_killall_tasks() into the same file, since that too is
relative to the rpc_clnt.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:54:07 -04:00
Trond Myklebust
d9b6cd9460 SUNRPC: Ensure that rpc_exit() always wakes up a sleeping task
Make rpc_exit() non-inline, and ensure that it always wakes up a task that
has been queued.

Kill off the now unused rpc_wake_up_task().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:54:07 -04:00
Trond Myklebust
241269bd0b SUNRPC: Make the credential cache hashtable size configurable
This patch allows the user to configure the credential cache hashtable size
using a new module parameter: auth_hashtable_size
When set, this parameter will be rounded up to the nearest power of two,
with a maximum allowed value of 1024 elements.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:54:06 -04:00
Trond Myklebust
988664a0f6 SUNRPC: Store the hashtable size in struct rpc_cred_cache
Cleanup in preparation for allowing the user to determine the maximum hash
table size.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:54:05 -04:00
Trond Myklebust
5d8d9a4d9f NFS: Ensure the AUTH_UNIX credcache is allocated dynamically
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04 08:52:57 -04:00
Trond Myklebust
f1f88fc7e8 SUNRPC: The function rpc_restart_call() should return success/failure
Both rpc_restart_call_prepare() and rpc_restart_call() test for the
RPC_TASK_KILLED flag, and fail to restart the RPC call if that flag is set.

This patch allows callers to know whether or not the restart was
successful, so that they can perform cleanups etc in case of failure.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-03 22:06:44 -04:00
Oliver Hartkopp
cff0d6e6ed can-raw: Fix skb_orphan_try handling
Commit fc6055a5ba (net: Introduce
skb_orphan_try()) allows an early orphan of the skb and takes care on
tx timestamping, which needs the sk-reference in the skb on driver level.
So does the can-raw socket, which has not been taken into account here.

The patch below adds a 'prevent_sk_orphan' bit in the skb tx shared info,
which fixes the problem discovered by Matthias Fuchs here:

      http://marc.info/?t=128030411900003&r=1&w=2

Even if it's not a primary tx timestamp topic it fits well into some skb
shared tx context. Or should be find a different place for the information to
protect the sk reference until it reaches the driver level?

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-03 00:31:48 -07:00
David S. Miller
3578b0c8ab Revert "net: remove zap_completion_queue"
This reverts commit 15e83ed788.

As explained by Johannes Berg, the optimization made here is
invalid.  Or, at best, incomplete.

Not only destructor invocation, but conntract entry releasing
must be executed outside of hw IRQ context.

So just checking "skb->destructor" is insufficient.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-03 00:24:04 -07:00
Changli Gao
a427615e04 net: cleanup inclusion
Commit ab95bfe01f replaces bridge and macvlan
hooks in __netif_receive_skb(), so dev.c doesn't need to include their headers.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 22:45:49 -07:00
David S. Miller
00dad5e479 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/e1000e/hw.h
	net/bridge/br_device.c
	net/bridge/br_input.c
2010-08-02 22:22:46 -07:00
stephen hemminger
66d50d2550 u32: negative offset fix
It was possible to use a negative offset in a u32 match to reference
the ethernet header or other parts of the link layer header.
This fixes the regression caused by:

commit fbc2e7d9cf
Author: Changli Gao <xiaosuo@gmail.com>
Date:   Wed Jun 2 07:32:42 2010 -0700

    cls_u32: use skb_header_pointer() to dereference data safely

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 22:07:45 -07:00
Changli Gao
c893b8066c ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice
6c79bf0f24 subtracts PPPOE_SES_HLEN from mtu at
the front of ip_fragment(). So the later subtraction should be removed. The
MTU of 802.1q is also 1500, so MTU should not be changed.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Bart De Schuymer <bdschuym@pandora.bo>
----
 net/ipv4/ip_output.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
Signed-off-by: Bart De Schuymer <bdschuym@pandora.bo>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 17:25:07 -07:00
Josh Hunt
3c0fef0b7d net: Add getsockopt support for TCP thin-streams
Initial TCP thin-stream commit did not add getsockopt support for the new
socket options: TCP_THIN_LINEAR_TIMEOUTS and TCP_THIN_DUPACK. This adds support
for them.

Signed-off-by: Josh Hunt <johunt@akamai.com>
Tested-by: Andreas Petlund <apetlund@simula.no>
Acked-by: Andreas Petlund <apetlund@simula.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-02 17:25:06 -07:00
David S. Miller
83bf2e4089 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-next-2.6 2010-08-02 15:07:58 -07:00
Aneesh Kumar K.V
0b1208b1aa fs/9p: destroy fid on failed remove
9P spec says:
"It is correct to consider remove to be a clunk with the
side effect of removing the file if permissions allow. "

So even if remove fails we need to destroy the fid.

Without this patch an rmdir on a directory with contents leave
the new cloned directory fid fid attached to fidlist. On umount
we dump the fids on the fidlist

~# rmdir /mnt2/test4/
rmdir: failed to remove `/mnt2/test4/': Directory not empty
~# umount /mnt2/
~# dmesg
[  228.474323] Found fid 3 not clunked

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>
2010-08-02 14:28:36 -05:00
Aneesh Kumar K.V
eda25e4616 net/9p: Implement TXATTRCREATE 9p call
TXATTRCREATE:  Prepare a fid for setting xattr value on a file system object.

 size[4] TXATTRCREATE tag[2] fid[4] name[s] attr_size[8] flags[4]
 size[4] RXATTRCREATE tag[2]

txattrcreate gets a fid pointing to xattr. This fid can later be
used to set the xattr value.

flag value is derived from set Linux setxattr. The manpage says
"The flags parameter can be used to refine the semantics of the operation.
XATTR_CREATE specifies a pure create, which fails if the named attribute
exists already. XATTR_REPLACE specifies a pure replace operation, which
fails if the named attribute does not already exist. By default (no flags),
the extended attribute will be created if need be, or will simply replace
the value if the attribute exists."

The actual setxattr operation happens when the fid is clunked. At that point
the written byte count and the attr_size specified in TXATTRCREATE should be
same otherwise an error will be returned.

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>
2010-08-02 14:28:34 -05:00
Aneesh Kumar K.V
0ef63f345c net/9p: Implement attrwalk 9p call
TXATTRWALK: Descend a ATTR namespace

 size[4] TXATTRWALK tag[2] fid[4] newfid[4] name[s]
 size[4] RXATTRWALK tag[2] size[8]

txattrwalk gets a fid pointing to xattr. This fid can later be
used to read the xattr value. If name is NULL the fid returned
can be used to get the list of extended attribute associated to
the file system object.

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>
2010-08-02 14:28:33 -05:00
M. Mohan Kumar
ef56547efa 9p: Implement LOPEN
Implement 9p2000.L version of open(LOPEN) interface in 9p client.

For LOPEN, no need to convert the flags to and from 9p mode to VFS mode.

Synopsis:

    size[4] Tlopen tag[2] fid[4] mode[4]

    size[4] Rlopen tag[2] qid[13] iounit[4]

[Fix mode bit format - jvrao@linux.vnet.ibm.com]

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 Hensbegren <ericvh@gmail.com>
2010-08-02 14:28:32 -05:00