55501 Commits

Author SHA1 Message Date
Johannes Berg
448cd55c37 Merge remote-tracking branch 'wireless-next/master' into HEAD 2013-01-29 12:16:22 +01:00
Vasanthakumar Thiagarajan
77765eaf5c cfg80211/nl80211: add API for MAC address ACLs
Add API to enable drivers to implement MAC address based
access control in AP/P2P GO mode. Capable drivers advertise
this capability by setting the maximum number of MAC
addresses in such a list in wiphy->max_acl_mac_addrs.

An initial ACL may be given to the NL80211_CMD_START_AP
command and/or changed later with NL80211_CMD_SET_MAC_ACL.

Black- and whitelists are supported, but not simultaneously.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
[rewrite commit log, many cleanups]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-25 18:36:44 +01:00
Vasanthakumar Thiagarajan
6d45a74b1f cfg80211: Move the definition of struct mac_address up
struct mac_address will be used by ACL related configuration ops.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-25 18:14:52 +01:00
Bing Zhao
d437c86baa ieee80211: define AKM suite selectors type 5, 6 and 7
Reference: IEEE 802.11-2012 8.4.2.27.3 "AKM suites"

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-24 15:50:05 +01:00
Emmanuel Grumbach
887da9176e mac80211: provide the vif in rssi_callback
Since drivers can support several BSS / P2P Client
interfaces, the rssi callback needs to inform the driver
about the interface teh rssi event relates to.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-24 15:41:29 +01:00
John W. Linville
066433a6fa Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-01-22 15:40:56 -05:00
Johannes Berg
a65240c101 mac80211: allow drivers to access IPv6 information
To be able to implement NS response offloading (in
regular operation or while in WoWLAN) drivers need
to know the IPv6 addresses assigned to interfaces.
Implement an IPv6 notifier in mac80211 to call the
driver when addresses change.

Unlike for IPv4, implement it as a callback rather
than as a list in the BSS configuration, that is
more flexible.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-18 21:55:38 +01:00
Johannes Berg
0f19b41e22 mac80211: remove ARP filter enable/disable logic
Depending on the driver, having ARP filtering for
some addresses may be possible. Remove the logic
that tracks whether ARP filter is enabled or not
and give the driver the total number of addresses
instead of the length of the list so it can make
its own decision.

Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-18 21:20:34 +01:00
Yoni Divinsky
de5fad8157 mac80211: add op to configure default key id
There are hardwares which support offload of data packets
for example when auto ARP is enabled the hw will send
the ARP response. In such cases if WEP encryption is
configured the hw must know the default WEP key in order
to encrypt the packets correctly.

When hw_accel is enabled and encryption type is set to WEP,
the driver should get the default key index from mac80211.

Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com>
[cleanups, fixes, documentation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-18 13:30:21 +01:00
Simon Wunderlich
11c4a075db cfg80211: check radar interface combinations
To ease further DFS development regarding interface combinations, use
the interface combinations structure to test for radar capabilities.
Drivers can specify which channel widths they support, and in which
modes. Right now only a single AP interface is allowed, but as the
DFS code evolves other combinations can be enabled.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-16 23:41:54 +01:00
Jouni Malinen
cee00a959c cfg80211: Allow use_mfp to be specified with the connect command
The NL80211_ATTR_USE_MFP attribute was originally added for
NL80211_CMD_ASSOCIATE, but it is actually as useful (if not even more
useful) with NL80211_CMD_CONNECT, so process that attribute with the
connect command, too.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-16 23:27:49 +01:00
Arend van Spriel
1c18f1452a nl80211: allow user-space to set address for P2P_DEVICE
As per email discussion Jouni Malinen pointed out that:

"P2P message exchanges can be executed on the current operating channel
of any operation (both P2P and non-P2P station). These can be on 5 GHz
and even on 60 GHz (so yes, you _can_ do GO Negotiation on 60 GHz).

As an example, it would be possible to receive a GO Negotiation Request
frame on a 5 GHz only radio and then to complete GO Negotiation on that
band. This can happen both when connected to a P2P group (through client
discoverability mechanism) and when connected to a legacy AP (assuming
the station receive Probe Request frame from full scan in the beginning
of P2P device discovery)."

This means that P2P messages can be sent over different radio devices.
However, these should use the same P2P device address so it should be
able to provision this from user-space. This patch adds a parameter for
this to struct vif_params which should only be used during creation of
the P2P device interface.

Cc: Jouni Malinen <j@w1.fi>
Cc: Greg Goldman <ggoldman@broadcom.com>
Cc: Jithu Jance <jithu@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
[add error checking]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-16 23:20:32 +01:00
Marco Porsch
3b1c5a5307 {cfg,nl}80211: mesh power mode primitives and userspace access
Add the nl80211_mesh_power_mode enumeration which holds possible
values for the mesh power mode. These modes are unknown, active,
light sleep and deep sleep.

Add power_mode entry to the mesh config structure to hold the
user-configured default mesh power mode. This value will be used
for new peer links.

Add the dot11MeshAwakeWindowDuration value to the mesh config.
The awake window is a duration in TU describing how long the STA
will stay awake after transmitting its beacon in PS mode.

Add access routines to:
 - get/set local link-specific power mode (STA)
 - get remote STA's link-specific power mode (STA)
 - get remote STA's non-peer power mode (STA)
 - get/set default mesh power mode (mesh config)
 - get/set mesh awake window duration (mesh config)

All config changes may be done at mesh runtime and take effect
immediately.

Signed-off-by: Marco Porsch <marco@cozybit.com>
Signed-off-by: Ivan Bezyazychnyy <ivan.bezyazychnyy@gmail.com>
Signed-off-by: Mike Krinkin <krinkin.m.u@gmail.com>
[fix commit message line length, error handling in set station]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-16 22:48:04 +01:00
Marco Porsch
9bdbf04db0 {cfg,nl,mac}80211: set beacon interval and DTIM period on mesh join
Move the default mesh beacon interval and DTIM period to cfg80211
and make them accessible to nl80211. This enables setting both
values when joining an MBSS.

Previously the DTIM parameter was not set by mac80211 so the
driver's default value was used.

Signed-off-by: Marco Porsch <marco@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-16 22:44:04 +01:00
Johannes Berg
8f21b0adfe mac80211: call restart complete at wowlan resume time
When the driver's resume function can't completely
restore the configuration in the device, it returns
1 from the callback which will be treated like a HW
restart request, but done directly.

In this case, also call the driver's restart_complete()
function so it can finish the reconfiguration there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-16 15:19:01 +01:00
Yacine Belkadi
0ae997dc75 {cfg,mac}80211.h: fix some kernel-doc warnings
When building the 80211 DocBook, scripts/kernel-doc reports
the following type of warnings:

Warning(include/net/cfg80211.h:334): No description found for return value of 'cfg80211_get_chandef_type'

These warnings are only reported when scripts/kernel-doc
runs in verbose mode.

To fix these use "Return:" to describe function return values.

Signed-off-by: Yacine Belkadi <yacine.belkadi.1@gmail.com>
[adjust for freq_reg_info() change]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-16 15:14:18 +01:00
Nathan Hintz
6bf2e54614 bcma: fix bcm4716/bcm4748 i2s irqflag
The default irqflag assignment for the I2S core on some Broadcom
4716/4748 devices is invalid and needs to be corrected (from the
Broadcom SDK).

Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-14 15:10:40 -05:00
John W. Linville
50c2f5e8f9 This is the first NFC patchset targeted at the 3.9 merge window.
It brings the following goodies:
 
 - LLCP socket timestamping (To be used e.g with the recently released nfctool
   application for a more efficient skb timestamping when sniffing).
 - A pretty big pn533 rework from Waldemar, preparing the driver to support
   more flavours of pn533 based devices.
 - HCI changes from Eric in preparation for the microread driver support.
 - Some LLCP memory leak fixes, cleanups and slight improvements.
 - pn544 and nfcwilink move to the devm_kzalloc API.
 - An initial Secure Element (SE) API.
 - An nfc.h license change from the original author, allowing non GPL
   application code to safely include it.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJQ8+7TAAoJEIqAPN1PVmxKHQIP/3dfFPQsOxQRj6sIkFVE/Yzh
 AomeiBh5oGsZkxWzGEolWvHU+DEYTZFz/TKyhneHtWIENTj8+ueo1dh5i35DcKvL
 NiZJT3ASqyJV1ipwQG102y6J511pJsVoQkFSh0Xb/yTDNjwZnL9Jp2N3vsb3rJyN
 DzqNHOx+oCZvjeoGaUzRyjgndcWzeVw0f5IuyRJlCUdh9bj3Er1uP6ugCMiUkMBH
 FcY3Qwdc4WbgtpyYv+Y79/vny1kQ+JPf0Rk9VlylcFZ5RsLEc7K3G3rrTQZktlAT
 /fCVxURotu8XdFf6lj0qRHLnrnTICj1sDcApVOm2XtoXicOtw0q9GaUJVvgPChkc
 vJ2bAYrWMeQ1FZJQt5DaQdsfsglq64ROiAlI8/s9upKP3+Pt0HNnKqUXEZVYTnxZ
 wgFVj20nO2vl5tmI3Z65ZyA1cJ1uSsOcCH8sB7V+OJYQoSKWVyxJw5AOHHh3tHz7
 +JfNrfTvIYG5woUivFmpdVslOHXMCe+lUfrXbvNCfF1PFsTUaQWa/dpxq6/pD991
 eTn5uP+UoJqL5oiYQJzwbKMvQ+3qGPxQuaVhbicRQRiCYA3yflg43iN8aSe4ARzs
 5dxY66WZgmAG1gamKxx7tJiPmkmgrrd/jAztLHdEZLmYnDUr+yQoazkaTOcWUCBt
 J7RoY3HcZsiDYwuB/D14
 =YeWq
 -----END PGP SIGNATURE-----

Merge tag 'nfc-next-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next

Samuel Ortiz <sameo@linux.intel.com> says:

"This is the first NFC patchset targeted at the 3.9 merge window.

It brings the following goodies:

- LLCP socket timestamping (To be used e.g with the recently released nfctool
  application for a more efficient skb timestamping when sniffing).
- A pretty big pn533 rework from Waldemar, preparing the driver to support
  more flavours of pn533 based devices.
- HCI changes from Eric in preparation for the microread driver support.
- Some LLCP memory leak fixes, cleanups and slight improvements.
- pn544 and nfcwilink move to the devm_kzalloc API.
- An initial Secure Element (SE) API.
- An nfc.h license change from the original author, allowing non GPL
  application code to safely include it."

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-14 15:08:52 -05:00
Lauro Ramos Venancio
d3710e74cf NFC: Change nfc.h license
nfc.h being GPL makes it quite controversial for non GPL applications to
include it.
Moreover, nfc.h only includes structures and API definitions that are hardly
copyrightable.

Signed-off-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-14 12:28:54 +01:00
Luis R. Rodriguez
0c0280bd0b wireless: make the reg_notifier() void
The reg_notifier()'s return value need not be checked
as it is only supposed to do post regulatory work and
that should never fail. Any behaviour to regulatory
that needs to be considered before cfg80211 does work
to a driver should be specified by using the already
existing flags, the reg_notifier() just does post
processing should it find it needs to.

Also make lbs_reg_notifier static.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[move lbs_reg_notifier to not break compile]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-14 11:32:44 +01:00
Nathan Hintz
990debe2ca bcma: update pci configuration for bcm4706/bcm4716
Update the PCI configuration for BCM4706 and BCM4716 per the 2011
Broadcom SDK.

Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11 14:50:00 -05:00
Nathan Hintz
e2aa19fadd bcma: return the mips irq number in bcma_core_irq
The irq signal numbers that are send by the cpu are increased by 2 from
the number programmed into the mips core by bcma.
Return the irq number on which the irqs are send in bcma_core_irq() now.

Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-11 14:49:59 -05:00
Samuel Ortiz
390a1bd853 NFC: Initial Secure Element API
Each NFC adapter can have several links to different secure elements and
that property needs to be exported by the drivers.
A secure element link can be enabled and disabled, and card emulation will
be handled by the currently active one. Otherwise card emulation will be
host implemented.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:54 +01:00
Eric Lapuyade
bf71ab8ba5 NFC: Add HCI quirks to support driver (non)standard implementations
Some chips diverge from the HCI spec in their implementation of standard
features. This adds a new quirks parameter to
nfc_hci_allocate_device() to let the driver indicate its divergence.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:51 +01:00
Eric Lapuyade
27c31191b3 NFC: Added error handling in event_received hci ops
There is no use to return an error if the caller doesn't get it.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:49 +01:00
Eric Lapuyade
f0c9103813 NFC: Fixed nfc core and hci unregistration and cleanup
When an adapter is removed, it will unregister itself from hci and/or
nfc core. In order to do that safely, work tasks must first be canceled
and prevented to be scheduled again, before the hci or nfc device can be
destroyed.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:48 +01:00
Hauke Mehrtens
8f9dc85348 bcma: mips: remove assigned_irqs from structure
This member is not needed any more.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-01-07 15:18:29 -05:00
Johannes Berg
1c06ef9831 wireless: use __aligned
Use __aligned(...) instead of __attribute__((aligned(...)))
in mac80211 and cfg80211.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:44 +01:00
Johannes Berg
ec61cd63dd mac80211: support HT notify channel width action
Support the HT notify channel width action frame
to update the rate scaling about the bandwidth
the peer can receive in.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:44 +01:00
Johannes Berg
598a5938e0 wireless: use __packed in ieee80211.h
Use __packed instead of __attribute__((packed)).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:43 +01:00
Johannes Berg
18b559d5db mac80211: split TX aggregation stop action
When TX aggregation is stopped, there are a few
different cases:
 - connection with the peer was dropped
 - session stop was requested locally
 - session stop was requested by the peer
 - connection was dropped while a session is stopping

The behaviour in these cases should be different, if
the connection is dropped then the driver should drop
all frames, otherwise the frames may continue to be
transmitted, aggregated in the case of a locally
requested session stop or unaggregated in the case of
the peer requesting session stop.

Split these different cases so that the driver can
act accordingly; however, treat local and remote stop
the same way and ask the driver to not send frames as
aggregated packets any more.

In the case of connection drop, the stop callback the
driver is otherwise supposed to call is no longer
required.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:42 +01:00
Johannes Berg
d582cffbcd nl80211/mac80211: support full station state in AP mode
Today, stations are added already associated. That is
inefficient if, for example, the driver has no room
for stations any more because then the station will
go through the entire auth/assoc handshake, only to
be kicked out afterwards.

To address this a bit better, at least with drivers
using the new station state callback, allow hostapd
to add stations in unauthenticated mode, just after
receiving the AUTH frame, before even replying. Thus
if there's no more space at that point, it can send
a negative auth frame back. It still needs to handle
later state transition errors though, of course.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:40 +01:00
Johannes Berg
8a61af65c6 mac80211: fix channel context iteration
During suspend/resume channel contexts might be
iterated even if they haven't been re-added to
the driver, keep track of this and skip them in
iteration. Also use the new status for sanity
checks.

Also clarify the fact that during HW restart all
contexts are iterated over (thanks Eliad.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:35 +01:00
Johannes Berg
361c9c8b0e regulatory: use IS_ERR macro family for freq_reg_info
Instead of returning an error and filling a pointer
return the pointer and an ERR_PTR value in error cases.

Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:31 +01:00
Johannes Berg
c492db370c regulatory: use RCU to protect last_request
This will allow making freq_reg_info() lock-free.

Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:30 +01:00
Johannes Berg
458f4f9e96 regulatory: use RCU to protect global and wiphy regdomains
To simplify the locking and not require cfg80211_mutex
(which nl80211 uses to access the global regdomain) and
also to make it possible for drivers to access their
wiphy->regd safely, use RCU to protect these pointers.

Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:29 +01:00
Johannes Berg
fe7ef5e9ba regulatory: remove handling of channel bandwidth
The channel bandwidth handling isn't really quite right,
it assumes that a 40 MHz channel is really two 20 MHz
channels, which isn't strictly true. This is the way the
regulatory database handling is defined right now though
so remove the logic to handle other channel widths.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:28 +01:00
Vladimir Kondratiev
0f6dfcee2e wireless: more 'capability info' bits
define bits for 'capability info', as in recent spec edition
IEEE802.11-2012

Also, add mask for 2-bit field 'bss type', as it is in 802.11ad

Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-03 13:01:15 +01:00
Linus Torvalds
4fe19a136a Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
 "This includes some fixes and code improvements (like
  clk_prepare_enable and clk_disable_unprepare), conversion from the
  omap_wdt and twl4030_wdt drivers to the watchdog framework, addition
  of the SB8x0 chipset support and the DA9055 Watchdog driver and some
  OF support for the davinci_wdt driver."

* git://www.linux-watchdog.org/linux-watchdog: (22 commits)
  watchdog: mei: avoid oops in watchdog unregister code path
  watchdog: Orion: Fix possible null-deference in orion_wdt_probe
  watchdog: sp5100_tco: Add SB8x0 chipset support
  watchdog: davinci_wdt: add OF support
  watchdog: da9052: Fix invalid free of devm_ allocated data
  watchdog: twl4030_wdt: Change TWL4030_MODULE_PM_RECEIVER to TWL_MODULE_PM_RECEIVER
  watchdog: remove depends on CONFIG_EXPERIMENTAL
  watchdog: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
  watchdog: DA9055 Watchdog driver
  watchdog: omap_wdt: eliminate goto
  watchdog: omap_wdt: delete redundant platform_set_drvdata() calls
  watchdog: omap_wdt: convert to devm_ functions
  watchdog: omap_wdt: convert to new watchdog core
  watchdog: WatchDog Timer Driver Core: fix comment
  watchdog: s3c2410_wdt: use clk_prepare_enable and clk_disable_unprepare
  watchdog: imx2_wdt: Select the driver via ARCH_MXC
  watchdog: cpu5wdt.c: add missing del_timer call
  watchdog: hpwdt.c: Increase version string
  watchdog: Convert twl4030_wdt to watchdog core
  davinci_wdt: preparation for switch to common clock framework
  ...
2012-12-21 17:10:29 -08:00
Linus Torvalds
b49249d103 Miscellaneous device-mapper fixes, cleanups and performance improvements.
Of particular note:
 - Disable broken WRITE SAME support in all targets except linear and striped.
   Use it when kcopyd is zeroing blocks.
 - Remove several mempools from targets by moving the data into the bio's new
   front_pad area(which dm calls 'per_bio_data').
 - Fix a race in thin provisioning if discards are misused.
 - Prevent userspace from interfering with the ioctl parameters and
   use kmalloc for the data buffer if it's small instead of vmalloc.
 - Throttle some annoying error messages when I/O fails.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJQ1M5OAAoJEK2W1qbAHj1nrQcP/itnnAw8RNsSHBrFMrL9wVnB
 5dmZ1BXPZmEbG+ViU4wzVmRUPHuSHTwhIqH7UFPjyCgbWaz1jaXfpyIxBsxlJi4E
 zuGjv46akANMwH0o/aJDRuEIrCnMtjLrMiY2Oq00lJFvATurwYAKSIgmnwRVdAYy
 gDehJhaymNtHVjhymu33xEn/hqqkQtUbMDj9o+IZppmAw1aQyNuYnwQu3HvcETuz
 /JBcs8isXKIQMJdMLFdGg7lZjLO241UvSwCAeGycKkupHLaYfycumPywgdiNFVUg
 L6pQP9RtAQ+H2VBQ1OIVMJxqiXxQ0xHhyxUYIe3reTar+RXoMA0yK+FiJTwSY1cE
 Xk0s8x2DXwUyu3Vx7UmvgUXnMgd4TIPITYBYiOAanEF/8Xt0voZn8mzNyyzsyFXy
 0u1vMRK+ZK7+QPio9LRh7bgHNK1g5ZyShvwqTMDmtlp+uskaP4iHDDGtVUjFA+Wf
 r9Ms0CXPbXIN6laUIT/4L3LJZtyRWB6e8wuCrUWIWWRbjrMPaPnB+/NlckGJ0CHa
 P/5r1rmLdneTEZ8Vx/2g3fBJ+H2uNQKhYujjnE0HqtHP+tvjt7ernibyU2QhNBeE
 Zy0PXRatY0Xn7UFpn44uJ2qxkWaO5Dloaa4HkWdlWFdR3f/u5MzVjy5mDXLUxkGq
 wj2Z3YkjYjy948MViBhD
 =yzhS
 -----END PGP SIGNATURE-----

Merge tag 'dm-3.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm

Pull dm update from Alasdair G Kergon:
 "Miscellaneous device-mapper fixes, cleanups and performance
  improvements.

  Of particular note:
   - Disable broken WRITE SAME support in all targets except linear and
     striped.  Use it when kcopyd is zeroing blocks.
   - Remove several mempools from targets by moving the data into the
     bio's new front_pad area(which dm calls 'per_bio_data').
   - Fix a race in thin provisioning if discards are misused.
   - Prevent userspace from interfering with the ioctl parameters and
     use kmalloc for the data buffer if it's small instead of vmalloc.
   - Throttle some annoying error messages when I/O fails."

* tag 'dm-3.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: (36 commits)
  dm stripe: add WRITE SAME support
  dm: remove map_info
  dm snapshot: do not use map_context
  dm thin: dont use map_context
  dm raid1: dont use map_context
  dm flakey: dont use map_context
  dm raid1: rename read_record to bio_record
  dm: move target request nr to dm_target_io
  dm snapshot: use per_bio_data
  dm verity: use per_bio_data
  dm raid1: use per_bio_data
  dm: introduce per_bio_data
  dm kcopyd: add WRITE SAME support to dm_kcopyd_zero
  dm linear: add WRITE SAME support
  dm: add WRITE SAME support
  dm: prepare to support WRITE SAME
  dm ioctl: use kmalloc if possible
  dm ioctl: remove PF_MEMALLOC
  dm persistent data: improve improve space map block alloc failure message
  dm thin: use DMERR_LIMIT for errors
  ...
2012-12-21 17:08:06 -08:00
Linus Torvalds
184e251661 Second batch of InfiniBand/RDMA changes for 3.8:
- cxgb4 changes to fix lookup engine hash collisions
  - mlx4 changes to make flow steering usable
  - fix to IPoIB to avoid pinning dst reference for too long
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABCAAGBQJQ1NdhAAoJEENa44ZhAt0hjb0P/i0tL4Ux+PvqG/Phh2gaZaQR
 evoi3bw6tCYFzWEJPfur2AJ63svKjyrSrfpvgEZjhthDdYORjIv2Dw2Je1qkOSrf
 5tJtSp3r9D0y35SE/DxNnzlgua9heBqphPlOGpjcKdN83KP7XIyVG2SGyJiEeLza
 owefPx/48jZr8hsw7LB2DlZmNUbVWK00o+pXa/VsUQX/dlIU5hyihAzBjtkwJyT2
 xtiyu9oqXGuv1JW/a16ooPGDaETDLJ1G50NndadUZYWFWj36VrAwW6hOAK3oOikf
 Qa4z3gJVzpSdaC1kiuxERj7GxlRpVUJY0IgHEoMTVrexOz1IsFEP8KEfGLkAYwzB
 jjuXh+Z2+QU5OOO3un0nINRGxKZUSD8Scoa222GBwGnWuCCq68APx2UGTkVkhWon
 FyjhF13WJRbElg2oXzI1cg9lJNv2pf10hXhiy2qdO6tDElVXVQk+KRiDdcNtxS0H
 FYYh3og/DjFwp18j+FVLA9r5AiPuVV5DjNnlwBNjTTMc9RwlOrX/6oCK2kZN24rZ
 l+Nr0gv+h6MAjTPBPYLUP2bsY6wYt5n566mfLea/lir9YeI+Q3PL2sDdGZ7C6xHH
 S4pRW95leP4pEFpHqYg8z3QKPswYqzokgbUSHxg2TVYrV01RC75axXCh0Q90q3RE
 oLP8GDYod2okxhAU2AyN
 =lDXt
 -----END PGP SIGNATURE-----

Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull more infiniband changes from Roland Dreier:
 "Second batch of InfiniBand/RDMA changes for 3.8:
   - cxgb4 changes to fix lookup engine hash collisions
   - mlx4 changes to make flow steering usable
   - fix to IPoIB to avoid pinning dst reference for too long"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/cxgb4: Fix bug for active and passive LE hash collision path
  RDMA/cxgb4: Fix LE hash collision bug for passive open connection
  RDMA/cxgb4: Fix LE hash collision bug for active open connection
  mlx4_core: Allow choosing flow steering mode
  mlx4_core: Adjustments to Flow Steering activation logic for SR-IOV
  mlx4_core: Fix error flow in the flow steering wrapper
  mlx4_core: Add QPN enforcement for flow steering rules set by VFs
  cxgb4: Add LE hash collision bug fix path in LLD driver
  cxgb4: Add T4 filter support
  IPoIB: Call skb_dst_drop() once skb is enqueued for sending
2012-12-21 16:40:26 -08:00
Linus Torvalds
0264405b84 These are a few cleanups for asm-generic:
* a set of patches from Lars-Peter Clausen to generalize asm/mmu.h
   and use it in the architectures that don't need any special handling.
 * A patch from Will Deacon to remove the {read,write}s{b,w,l} as
   discussed during the arm64 review
 * A patch from James Hogan that helps with the meta architecture
   series.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIVAwUAUNTEqmCrR//JCVInAQIYcA//TgSeG0Q+7bxvOhwk7Xl6njafe+v8CZxa
 aKpC+HayxoXpZqdBk1JY9o9yj05BwOElPirE6j0FL0pQrDAIO+X8zKM86a4RSo1E
 aLRoSgFCi9JA467ujDTAOIF3cg1EfNdlqTS9TtJ4Qo4iI0uAurgslULSq8a/Lcm/
 M0m0jMa327giGdyxRx0ZBMvgn+/hSx7ltrpIVAGRIA1TRBW+nQI0Guk3MjUrmeV8
 r8nksECwxqy98vX9MMZ0aN4+15CeGriiRYWaBBC7acrJHYOFoJuxCbNrhlBbzsCw
 hYRU9Sz+WC2fB6hqTCnF2UMGL5Nh4pMY2hMV5e5+pTqge5+xnW6pGbyDL/+E6zwt
 vmYeDm8tOAUaQCvJGuk4l6bH7EeTb2rC8rV+I+UoI2NWSPSfpYqQ778s7PEwTMsJ
 KRwqFbxlF9gMgfgn1nJOSBYFnMZ/sH7Fr5uIPe3PGgJ+WB8WHTIstOKaEOMeTDVk
 TMlEAeui9i6Jcb7nt7IXHZFUAdNLY937Er3feqq5Ulchh+9QGIp0EBRDAvM6CvwC
 C0KKZG2LAZcDFuPBvZN6qZvq69QR1q+uJsKSpFIxXD+n3K73hky8YcmUF3LrQFz0
 R8m3ZKYnHMR+LVDFgY7fPYdxxAVrJFNLPVZ4+q3ZWvB8k49VfURfvJYjjANC4SUw
 vuN84glbYVE=
 =uewR
 -----END PGP SIGNATURE-----

Merge tag 'asm-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic cleanup from Arnd Bergmann:
 "These are a few cleanups for asm-generic:

   - a set of patches from Lars-Peter Clausen to generalize asm/mmu.h
     and use it in the architectures that don't need any special
     handling.
   - A patch from Will Deacon to remove the {read,write}s{b,w,l} as
     discussed during the arm64 review
   - A patch from James Hogan that helps with the meta architecture
     series."

* tag 'asm-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  xtensa: Use generic asm/mmu.h for nommu
  h8300: Use generic asm/mmu.h
  c6x: Use generic asm/mmu.h
  asm-generic/mmu.h: Add support for FDPIC
  asm-generic/mmu.h: Remove unused vmlist field from mm_context_t
  asm-generic: io: remove {read,write} string functions
  asm-generic/io.h: remove asm/cacheflush.h include
2012-12-21 16:39:08 -08:00
Mikulas Patocka
7de3ee57da dm: remove map_info
This patch removes map_info from bio-based device mapper targets.
map_info is still used for request-based targets.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-12-21 20:23:41 +00:00
Mikulas Patocka
ddbd658f64 dm: move target request nr to dm_target_io
This patch moves target_request_nr from map_info to dm_target_io and
makes it accessible with dm_bio_get_target_request_nr.

This patch is a preparation for the next patch that removes map_info.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-12-21 20:23:39 +00:00
Mikulas Patocka
c0820cf5ad dm: introduce per_bio_data
Introduce a field per_bio_data_size in struct dm_target.

Targets can set this field in the constructor. If a target sets this
field to a non-zero value, "per_bio_data_size" bytes of auxiliary data
are allocated for each bio submitted to the target. These data can be
used for any purpose by the target and help us improve performance by
removing some per-target mempools.

Per-bio data is accessed with dm_per_bio_data. The
argument data_size must be the same as the value per_bio_data_size in
dm_target.

If the target has a pointer to per_bio_data, it can get a pointer to
the bio with dm_bio_from_per_bio_data() function (data_size must be the
same as the value passed to dm_per_bio_data).

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-12-21 20:23:38 +00:00
Mike Snitzer
d54eaa5a0f dm: prepare to support WRITE SAME
Allow targets to opt in to WRITE SAME support by setting
'num_write_same_requests' in the dm_target structure.

A dm device will only advertise WRITE SAME support if all its
targets and all its underlying devices support it.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-12-21 20:23:36 +00:00
Mikulas Patocka
5023e5cf58 dm ioctl: remove PF_MEMALLOC
When allocating memory for the userspace ioctl data, set some
appropriate GPF flags directly instead of using PF_MEMALLOC.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2012-12-21 20:23:36 +00:00
Linus Torvalds
96680d2b91 Merge branch 'for-next' of git://git.infradead.org/users/eparis/notify
Pull filesystem notification updates from Eric Paris:
 "This pull mostly is about locking changes in the fsnotify system.  By
  switching the group lock from a spin_lock() to a mutex() we can now
  hold the lock across things like iput().  This fixes a problem
  involving unmounting a fs and having inodes be busy, first pointed out
  by FAT, but reproducible with tmpfs.

  This also restores signal driven I/O for inotify, which has been
  broken since about 2.6.32."

Ugh.  I *hate* the timing of this.  It was rebased after the merge
window opened, and then left to sit with the pull request coming the day
before the merge window closes.  That's just crap.  But apparently the
patches themselves have been around for over a year, just gathering
dust, so now it's suddenly critical.

Fixed up semantic conflict in fs/notify/fdinfo.c as per Stephen
Rothwell's fixes from -next.

* 'for-next' of git://git.infradead.org/users/eparis/notify:
  inotify: automatically restart syscalls
  inotify: dont skip removal of watch descriptor if creation of ignored event failed
  fanotify: dont merge permission events
  fsnotify: make fasync generic for both inotify and fanotify
  fsnotify: change locking order
  fsnotify: dont put marks on temporary list when clearing marks by group
  fsnotify: introduce locked versions of fsnotify_add_mark() and fsnotify_remove_mark()
  fsnotify: pass group to fsnotify_destroy_mark()
  fsnotify: use a mutex instead of a spinlock to protect a groups mark list
  fanotify: add an extra flag to mark_remove_from_mask that indicates wheather a mark should be destroyed
  fsnotify: take groups mark_lock before mark lock
  fsnotify: use reference counting for groups
  fsnotify: introduce fsnotify_get_group()
  inotify, fanotify: replace fsnotify_put_group() with fsnotify_destroy_group()
2012-12-20 20:11:52 -08:00
Linus Torvalds
4c9a44aebe Merge branch 'akpm' (Andrew's patch-bomb)
Merge the rest of Andrew's patches for -rc1:
 "A bunch of fixes and misc missed-out-on things.

  That'll do for -rc1.  I still have a batch of IPC patches which still
  have a possible bug report which I'm chasing down."

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (25 commits)
  keys: use keyring_alloc() to create module signing keyring
  keys: fix unreachable code
  sendfile: allows bypassing of notifier events
  SGI-XP: handle non-fatal traps
  fat: fix incorrect function comment
  Documentation: ABI: remove testing/sysfs-devices-node
  proc: fix inconsistent lock state
  linux/kernel.h: fix DIV_ROUND_CLOSEST with unsigned divisors
  memcg: don't register hotcpu notifier from ->css_alloc()
  checkpatch: warn on uapi #includes that #include <uapi/...
  revert "rtc: recycle id when unloading a rtc driver"
  mm: clean up transparent hugepage sysfs error messages
  hfsplus: add error message for the case of failure of sync fs in delayed_sync_fs() method
  hfsplus: rework processing of hfs_btree_write() returned error
  hfsplus: rework processing errors in hfsplus_free_extents()
  hfsplus: avoid crash on failed block map free
  kcmp: include linux/ptrace.h
  drivers/rtc/rtc-imxdi.c: must include <linux/spinlock.h>
  mm: cma: WARN if freed memory is still in use
  exec: do not leave bprm->interp on stack
  ...
2012-12-20 20:00:43 -08:00
Linus Torvalds
1f0377ff08 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS update from Al Viro:
 "fscache fixes, ESTALE patchset, vmtruncate removal series, assorted
  misc stuff."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (79 commits)
  vfs: make lremovexattr retry once on ESTALE error
  vfs: make removexattr retry once on ESTALE
  vfs: make llistxattr retry once on ESTALE error
  vfs: make listxattr retry once on ESTALE error
  vfs: make lgetxattr retry once on ESTALE
  vfs: make getxattr retry once on an ESTALE error
  vfs: allow lsetxattr() to retry once on ESTALE errors
  vfs: allow setxattr to retry once on ESTALE errors
  vfs: allow utimensat() calls to retry once on an ESTALE error
  vfs: fix user_statfs to retry once on ESTALE errors
  vfs: make fchownat retry once on ESTALE errors
  vfs: make fchmodat retry once on ESTALE errors
  vfs: have chroot retry once on ESTALE error
  vfs: have chdir retry lookup and call once on ESTALE error
  vfs: have faccessat retry once on an ESTALE error
  vfs: have do_sys_truncate retry once on an ESTALE error
  vfs: fix renameat to retry on ESTALE errors
  vfs: make do_unlinkat retry once on ESTALE errors
  vfs: make do_rmdir retry once on ESTALE errors
  vfs: add a flags argument to user_path_parent
  ...
2012-12-20 18:14:31 -08:00