The pid namespace patches changed the semantics of
find_task_by_pid without breaking the compile resulting
in get_net_ns_by_pid doing the wrong thing.

So switch to using the intended find_task_by_vpid.

Combined with Denis' earlier patch to make netlink traffic
fully synchronous the inadvertent race I introduced with
accessing current is actually removed.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

It is not safe to to place struct pernet_operations in a special section.
We need struct pernet_operations to last until we call unregister_pernet_subsys.
Which doesn't happen until module unload.

So marking struct pernet_operations is a disaster for modules in two ways.
- We discard it before we call the exit method it points to.
- Because I keep struct pernet_operations on a linked list discarding
  it for compiled in code removes elements in the middle of a linked
  list and does horrible things for linked insert.

So this looks safe assuming __exit_refok is not discarded
for modules.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch fixes the following compile errors in some configurations:

<--  snip  -->

...
  CC      net/ipv4/esp4.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/net/ipv4/esp4.c: In function 'esp_output':
/home/bunk/linux/kernel-2.6/git/linux-2.6/net/ipv4/esp4.c:113: error: implicit declaration of function 'sg_init_table'
make[3]: *** [net/ipv4/esp4.o] Error 1
...
/home/bunk/linux/kernel-2.6/git/linux-2.6/net/ipv6/esp6.c: In function 'esp6_output':
/home/bunk/linux/kernel-2.6/git/linux-2.6/net/ipv6/esp6.c:112: error: implicit declaration of function 'sg_init_table'
make[3]: *** [net/ipv6/esp6.o] Error 1


<--  snip  -->
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/tcp_ipv6.c: In function 'tcp_v6_rcv':
net/ipv6/tcp_ipv6.c:1736: error: implicit declaration of function
'get_softnet_dma'
net/ipv6/tcp_ipv6.c:1736: warning: assignment makes pointer from integer
without a cast
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits)
  [NetLabel]: correct usage of RCU locking
  [TCP]: fix D-SACK cwnd handling
  [NET] napi: use non-interruptible sleep in napi_disable
  [SCTP] net/sctp/auth.c: make 3 functions static
  [TCP]: Add missing I/O AT code to ipv6 side.
  [SCTP]: #if 0 sctp_update_copy_cksum()
  [INET]: Unexport icmpmsg_statistics
  [NET]: Unexport sock_enable_timestamp().
  [TCP]: Make tcp_match_skb_to_sack() static.
  [IRDA]: Make ircomm_tty static.
  [NET] fs/proc/proc_net.c: make a struct static
  [NET] dev_change_name: ignore changes to same name
  [NET]: Document some simple rules for actions
  [NET_CLS_ACT]: Use skb_act_clone
  [NET_CLS_ACT]: Introduce skb_act_clone
  [TCP]: Fix scatterlist handling in MD5 signature support.
  [IPSEC]: Fix scatterlist handling in skb_icv_walk().
  [IPSEC]: Add missing sg_init_table() calls to ESP.
  [CRYPTO]: Initialize TCRYPT on-stack scatterlist objects correctly.
  [CRYPTO]: HMAC needs some more scatterlist fixups.
  ...

[PATCH] De-constify sched.h

This reverts commit a8972ccf ("sched:
constify sched.h")

 1) Patch doesn't change any code here, so gcc is already smart enough
    to "feel" constness in such simple functions.
 2) There is no such thing as const task_struct.  Anyone who think
    otherwise deserves compiler warning.
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This fixes some awkward, and perhaps even problematic, RCU lock usage in the
NetLabel code as well as some other related trivial cleanups found when
looking through the RCU locking.  Most of the changes involve removing the
redundant RCU read locks wrapping spinlocks in the case of a RCU writer.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In the current net-2.6 kernel, handling FLAG_DSACKING_ACK is broken.
The flag is cleared to 1 just after FLAG_DSACKING_ACK is set.

        if (found_dup_sack)
                flag |= FLAG_DSACKING_ACK;
	:
	flag = 1;

To fix it, this patch introduces a part of the tcp_sacktag_state patch:
	http://marc.info/?l=linux-netdev&m=119210560431519&w=2Signed-off-by: Ryousei Takano <takano-ryousei@aist.go.jp>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

The current napi_disable() uses msleep_interruptible() but doesn't
(and can't) exit in case there's a signal, thus ending up doing a
hot spin without a cpu_relax. Use uninterruptible sleep instead.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch makes three needlessly global functions static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

sctp_update_copy_cksum() is no longer used.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch removes the unused EXPORT_SYMBOL(icmpmsg_statistics).
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

sock_enable_timestamp() no longer has any modular users.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

tcp_match_skb_to_sack() can become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

ircomm_tty can now become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Struct proc_net_ns_ops can become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Prevent error/backtrace from dev_rename() when changing
name of network device to the same name. This is a common
situation with udev and other scripts that bind addr to device.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

This patch adds documentation on what is expected of an
action which branches away from the action-graph or when it
needs to trample on actins. It also describes what is expected of
users of such actions.
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

clean skb_clone of any signs of CONFIG_NET_CLS_ACT and
have mirred us skb_act_clone()
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

Reworked skb_clone looks uglier with the single ifdef
CONFIG_NET_CLS_ACT This patch introduces skb_act_clone which will
replace skb_clone in tc actions
Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

Use sg_init_table() and sg_mark_end() as needed.
Signed-off-by: David S. Miller <davem@davemloft.net>

Use sg_init_one() and sg_init_table() as needed.
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

Use sg_init_one() and sg_init_table() as needed.
Signed-off-by: David S. Miller <davem@davemloft.net>

hmac_setkey(), hmac_init(), and hmac_final() have
a singular on-stack scatterlist.  Initialit is
using sg_init_one() instead of using sg_set_buf().
Signed-off-by: David S. Miller <davem@davemloft.net>

Fix inconsistency of terms:
1) D-SACK
2) F-RTO
Signed-off-by: Ryousei Takano <takano-ryousei@aist.go.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

My AID message patch introduced a warning on 64-bit machines because ~
extends to unsigned long:

| net/mac80211/ieee80211_sta.c: In function ‘ieee80211_rx_mgmt_assoc_resp’:
| net/mac80211/ieee80211_sta.c:1187: warning: format ‘%d’ expects type ‘int’, but argument 7 has type ‘long unsigned int’

This fixes it by explicitly casting the result to u16 (which 'aid' is).
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

This adds myself as mac80211 maintainer and updates the git URL to point
to the wireless-2.6 tree. Also move Jiri down so he isn't first in list.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

The length of the SSID desired should also be compared in addition to
the memcmp of the SSIDs.

Thanks to Andrea Merello <andreamrl@tiscali.it> for finding this issue.
Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

UDP currently uses skb->dev->ifindex which may provide the wrong
information when the socket bound to a specific interface.
This patch makes inet_iif() accessible to UDP and makes UDP use it.

The scenario we are trying to fix is when a client is running on
the same system and the server and both client and server bind to
a non-loopback device.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Acked-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Crypto now uses SG helper functions.  Fix hmac_digest to use those
functions correctly and fix the oops associated with it.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This was obsoleted by a previous change, but the removal was
forgotten.

Reported by David Howells and David Stevens.
Signed-off-by: David S. Miller <davem@davemloft.net>

Coding style cleanups:

- change __inline__ to inline;
- drop space in "* addr" parameters;
- drop space between func. name and '('

The "volatile" keywords are correct according to email from one
Linus Torvalds.

[Several other arches need some of this also.]
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Use duplicated inline functions for test_and_set_bit_lock() on x86
instead of #define macros, thus avoiding a bad example.  This allows
kernel-doc to run cleanly instead of terminating with an error:

Error(linux-2.6.24-rc1//include/asm-x86/bitops_32.h:188): cannot understand prototype: 'test_and_set_bit_lock test_and_set_bit '
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (40 commits)
  USB: open disconnect race in usblcd
  USB: disconnect open race in legousbtower
  USB: open disconnect race in iowarrior
  USB: missing error check in emi62
  USB: missing error check in emi26
  USB: usb_serial_resume bug fix
  USB: remove new OHCI build warnings
  USB: amd5536udc - remove set_mwi() compiler warning
  USB: usbserial - fix potential deadlock between write() and IRQ
  usb: serial/pl2303: support for IO Data Device RSAQ5
  USB: fix read vs. disconnect race in cytherm driver
  USB: fix locking in idmouse
  USB: fix interface sysfs file-creation bug
  USB: fix ssb_ohci_probe() build bug
  USB: pl2303: remove can't happen checks, set speed properly and report baud rate
  USB: mos7840: Clean up old checks and stuff
  USB rio500.c: fix check-after-use
  USB iowarrior.c: fix check-after-use
  USB: add URB_FREE_BUFFER to permissible flags
  USB: isd200: sort out USB/IDE dependancy mess
  ...

* 'warnings-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
  ISDN/sc: fix longstanding warning

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: pass correct addr in get_fb_unmapped_area(MAP_FIXED)