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Paul Ready [Wed, 29 Oct 2008 21:25:50 +0000 (14:25 -0700)]
USB: add Nikon D300 camera to unusual_devs
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11685
When A Nikon D300 camera is connected to a system it is seen in
/proc/bus/pci/devices but is not accessible.
This is seen in the above file:
T: Bus=01 Lev=01 Prnt=01 Port=05 Cnt=03 Dev#= 11 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=04b0 ProdID=041a Rev= 1.03
S: Manufacturer=NIKON
S: Product=NIKON DSC D300
S: SerialNumber=
000008014379
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=06(still) Sub=01 Prot=01 Driver=usbfs
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=83(I) Atr=03(Int.) MxPS= 8 Ivl=32ms
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Fri, 31 Oct 2008 17:09:57 +0000 (10:09 -0700)]
USB: vstusb: fix compiler warning on x86-64
This fixes a reported compiler warning.
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Thu, 13 Nov 2008 21:14:29 +0000 (13:14 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: ignore bit0 of _OSC return code
Linus Torvalds [Thu, 13 Nov 2008 19:56:05 +0000 (11:56 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/teigland/dlm
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
dlm: fix shutdown cleanup
Linus Torvalds [Thu, 13 Nov 2008 19:30:46 +0000 (11:30 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
slab: document SLAB_DESTROY_BY_RCU
Kconfig: SLUB is the default slab allocator
Linus Torvalds [Thu, 13 Nov 2008 19:30:25 +0000 (11:30 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM]
cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constants
[ARM]
cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constants
[ARM] integrator,realview,versatile: remove FLASH_* and EPROM_* constants
[ARM] dma-mapping: fix compiler warning
[ARM] iop: iop3xx needs registers mapped uncached+unbuffered
[ARM] versatile: correct MMC clock rate
[ARM] realview: correct MMC clock rate
[ARM] 5329/1: Feroceon: fix feroceon_l2_inv_range
Helge Deller [Thu, 13 Nov 2008 17:55:54 +0000 (18:55 +0100)]
fix cpumask build breakage on parisc
Commit
2d3854a37e8b767a51aba38ed6d22817b0631e33 ("cpumask: introduce new
API, without changing anything") introduced a build breakage on parisc.
This trivial patch fixes it.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Kyle Mc Martin <kyle@hera.kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Teigland [Thu, 13 Nov 2008 19:22:34 +0000 (13:22 -0600)]
dlm: fix shutdown cleanup
Fixes a regression from commit
0f8e0d9a317406612700426fad3efab0b7bbc467,
"dlm: allow multiple lockspace creates".
An extraneous 'else' slipped into a code fragment being moved from
release_lockspace() to dlm_release_lockspace(). The result of the
unwanted 'else' is that dlm threads and structures are not stopped
and cleaned up when the final dlm lockspace is removed. Trying to
create a new lockspace again afterward will fail with
"kmem_cache_create: duplicate cache dlm_conn" because the cache
was not previously destroyed.
Signed-off-by: David Teigland <teigland@redhat.com>
Peter Zijlstra [Thu, 13 Nov 2008 18:40:12 +0000 (20:40 +0200)]
slab: document SLAB_DESTROY_BY_RCU
Explain this SLAB_DESTROY_BY_RCU thing...
[hugh@veritas.com: add a pointer to comment in mm/slab.c]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Simon Arlott [Wed, 5 Nov 2008 22:18:19 +0000 (22:18 +0000)]
Kconfig: SLUB is the default slab allocator
In 2007,
a0acd820807680d2ccc4ef3448387fcdbf152c73 changed the default
slab allocator to SLUB, but the SLAB help text still says SLAB is the
default. This change fixes that.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Russell King [Thu, 13 Nov 2008 15:02:41 +0000 (15:02 +0000)]
[ARM]
cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constants
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 13 Nov 2008 14:53:08 +0000 (14:53 +0000)]
[ARM]
cdb89712,clps7500,h720x: avoid namespace clash for FLASH_* constants
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 13 Nov 2008 14:43:03 +0000 (14:43 +0000)]
[ARM] integrator,realview,versatile: remove FLASH_* and EPROM_* constants
FLASH_* and EPROM_* constants are unused, and clash with drivers:
drivers/atm/ambassador.h:257:1: warning: "FLASH_BASE" redefined
drivers/atm/ambassador.h:258:1: warning: "FLASH_SIZE" redefined
drivers/atm/iphase.h:332:1: warning: "EPROM_SIZE" redefined
so remove them.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 13 Nov 2008 14:33:51 +0000 (14:33 +0000)]
[ARM] dma-mapping: fix compiler warning
arch/arm/mm/dma-mapping.c: In function `dma_sync_sg_for_cpu':
arch/arm/mm/dma-mapping.c:588: warning: statement with no effect
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Thu, 13 Nov 2008 01:22:44 +0000 (17:22 -0800)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: fix init_idle()'s use of sched_clock()
sched: fix stale value in average load per task
Rodolfo Giometti [Wed, 12 Nov 2008 21:27:14 +0000 (13:27 -0800)]
c2port: add c2port support for Eurotech Duramar 2150
Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rodolfo Giometti [Wed, 12 Nov 2008 21:27:12 +0000 (13:27 -0800)]
Add c2 port support
C2port implements a two wire serial communication protocol (bit
banging) designed to enable in-system programming, debugging, and
boundary-scan testing on low pin-count Silicon Labs devices.
Currently this code supports only flash programming through sysfs
interface but extensions shoud be easy to add.
Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Madhusudhan Chikkature [Wed, 12 Nov 2008 21:27:12 +0000 (13:27 -0800)]
hdq: documentation for OMAP HDQ
Add a brief document about omap2430/3430 HDQ/1-wire driver.
Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Madhusudhan Chikkature [Wed, 12 Nov 2008 21:27:11 +0000 (13:27 -0800)]
hdq: bQ27000 HDQ Slave Interface Driver
Provide the BQ27000 slave interface driver.
Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Madhusudhan Chikkature [Wed, 12 Nov 2008 21:27:09 +0000 (13:27 -0800)]
hdq driver for OMAP2430/3430
The HDQ/1-Wire module of TI OMAP2430/3430 platforms implement the hardware
protocol of the master functions of the Benchmark HDQ and the Dallas
Semiconductor 1-Wire protocols. These protocols use a single wire for
communication between the master (HDQ/1-Wire controller) and the slave
(HDQ/1-Wire external compliant device).
This patch provides the HDQ driver to suppport TI OMAP2430/3430 platforms.
Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Madhusudhan Chikkature [Wed, 12 Nov 2008 21:27:08 +0000 (13:27 -0800)]
w1: export w1_read_8 function
Export the w1_read_8 function for use of drivers. The OMAP HDQ
driver(drivers/w1/masters/omap_hdq.c) uses this function.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mark Jackson [Wed, 12 Nov 2008 21:27:07 +0000 (13:27 -0800)]
rtc: add Dallas DS1390/93/94 RTC chips
Add support for the Dallas DS1390/93/94 SPI RTC chip.
Signed-off-by: Mark Jackson <mpfj@mimc.co.uk>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Martyn Welch [Wed, 12 Nov 2008 21:27:06 +0000 (13:27 -0800)]
rtc: basic implementation of Epson RX-8581 I2C Real Time Clock
Provide the basic "get" and "set" functionality for the Epson RX-8581 I2C
RTC. It currently does not support the RTC's Alarm or Fixed-cycle timer.
[akpm@linux-foundation.org: need log2.h for ilog2(), remove unneeded initialisation]
Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mark Brown [Wed, 12 Nov 2008 21:27:04 +0000 (13:27 -0800)]
rtc: rtc-wm8350: add support for WM8350 RTC
This adds support for the RTC provided by the Wolfson Microelectronics
WM8350.
This driver was originally written by Graeme Gregory and Liam Girdwood,
though it has been modified since then to update it to current mainline
coding standards and for API completeness.
[akpm@linux-foundation.org: s/schedule_timeout_interruptible/schedule_timeout_uninterruptible/ to prevent bogus timeout when signal_pending()]
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Cc: Liam Girdwood <linux@wolfsonmicro.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Darrick J. Wong [Wed, 12 Nov 2008 21:27:04 +0000 (13:27 -0800)]
ics932s401: new clock generator chip driver
The ics932s401 is a clock generator chip. This driver allows users to
read the current clock outputs.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Darrick J. Wong [Wed, 12 Nov 2008 21:27:03 +0000 (13:27 -0800)]
adt7462: new hwmon driver
New driver to play with. As Jean mentioned a couple of years ago, this
chip is a beast with odd combinations of 8 fans, 4 temperatures, and 13
voltage sensors. This driver has been tested on an IntelliStation Z30.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pavel Machek [Wed, 12 Nov 2008 21:27:02 +0000 (13:27 -0800)]
LIS3LV02Dx Accelerometer driver
This adds a driver to the accelerometer sensor found in several HP
laptops (under the commercial names of "HP Mobile Data Protection System
3D" and "HP 3D driveguard"). It tries to have more or less the same
interfaces as the hdaps and other accelerometer drivers: in sysfs and as
a joystick.
This driver was first written by Yan Burman. Eric Piel has updated it
and slimed it up (including the removal of an interface to access to the
free-fall feature of the sensor because it is not reliable enough for
now). Pavel Machek removed few more features and switched locking from
semaphore to mutex.
Several people have contributed to the database of the axes.
[eric.piel@tremplin-utc.net: LIS3LV02D: Conform to the new ACPI API]
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Yan Burman <burman.yan@gmail.com>
Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KAMEZAWA Hiroyuki [Wed, 12 Nov 2008 21:27:01 +0000 (13:27 -0800)]
memcg: bugfix for memory hotplug
The start pfn calculation in page_cgroup's memory hotplug notifier chain
is wrong.
Tested-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Theodore Tso [Wed, 12 Nov 2008 21:27:01 +0000 (13:27 -0800)]
ext3: Clean up outdated and incorrect comment for ext3_write_super()
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jean-Christophe Lallemand [Wed, 12 Nov 2008 21:27:00 +0000 (13:27 -0800)]
atmel_spi: work-around required for new HW bug in AT91SAM9263 Rev.B SPI controller
We're working with an AT91SAM9263 Rev B in our design and I experienced
some inconsistency in spi-based touchscreen usage between our board and
the Atmel evaluation kit we have that runs on a Rev A chip.
The data was apparently delayed by 1 byte and got ridiculous data out of
the touchscreen driver, very strange. As everything looked normal in
the spi, touchscreen and dma logs, I contacted the Atmel support and
they triggered me on a new HW bug that appeared in the Rev B SPI
controller.
The problem is that the SPI controller on the Rev B needs that the
software reset is performed two times so that it's performed correctly.
Applying the patch below solves the issue on my Rev B board. I've tested
it as well on my Rev A evaluation kit and it has apparently no unwanted
side effect, things continue to work as expected.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Darrick J. Wong [Wed, 12 Nov 2008 21:26:59 +0000 (13:26 -0800)]
lm85: support adt7468 chips
The adt7468 is a follow-on to the adt7463, so plumb in adt7468 support
along the same code paths.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Darrick J. Wong [Wed, 12 Nov 2008 21:26:58 +0000 (13:26 -0800)]
adt7473: check inputs from sysfs writes
Implement correct range checking for adt7470 to prevent userland from
writing impossible values into the chip, and cap out-of-range values per
standard hwmon conventions.
Implement correct rounding of input values per standard hwmon conventions.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Darrick J. Wong [Wed, 12 Nov 2008 21:26:57 +0000 (13:26 -0800)]
adt7470: check input range when sysfs files are written
Implement correct range checking for adt7470 to prevent userland from
writing impossible values into the chip, and cap out-of-range values per
standard hwmon conventions.
Implement correct rounding of input values per standard hwmon conventions.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Wed, 12 Nov 2008 21:26:57 +0000 (13:26 -0800)]
kernel/kprobes.c: don't pad kretprobe_table_locks[] on uniprocessor builds
We only need the cacheline padding on SMP kernels. Saves 6k:
text data bss dec hex filename
5713 388 8840 14941 3a5d kernel/kprobes.o
5713 388 2632 8733 221d kernel/kprobes.o
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Marco Stornelli [Wed, 12 Nov 2008 21:26:56 +0000 (13:26 -0800)]
DOC: update xip method info
xip documentation updated:
- change "get_xip_page" to "get_xip_mem";
- explain changed function parameters
Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Wed, 12 Nov 2008 21:26:55 +0000 (13:26 -0800)]
DOC: add printk-formats.txt
Add printk-formats.txt so that we don't have to keep fixing the
same things over and over again. <wishful thinking>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Wed, 12 Nov 2008 21:26:55 +0000 (13:26 -0800)]
remove ratelimt()
It mistakenly assumes that a static local in an inlined function is a
kernel-wide singleton. It also has no callers, so let's remove it.
Cc: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric W. Biederman [Wed, 12 Nov 2008 21:26:54 +0000 (13:26 -0800)]
vfs: fix shrink_submounts
In the last refactoring of shrink_submounts a variable was not completely
renamed. So finish the renaming of mnt to m now.
Without this if you attempt to mount an nfs mount that has both automatic
nfs sub mounts on it, and has normal mounts on it. The unmount will
succeed when it should not.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KOSAKI Motohiro [Wed, 12 Nov 2008 21:26:53 +0000 (13:26 -0800)]
mm: remove lru_add_drain_all() from the munlock path
lockdep warns about following message at boot time on one of my test
machine. Then, schedule_on_each_cpu() sholdn't be called when the task
have mmap_sem.
Actually, lru_add_drain_all() exist to prevent the unevictalble pages
stay on reclaimable lru list. but currenct unevictable code can rescue
unevictable pages although it stay on reclaimable list.
So removing is better.
In addition, this patch add lru_add_drain_all() to sys_mlock() and
sys_mlockall(). it isn't must. but it reduce the failure of moving to
unevictable list. its failure can rescue in vmscan later. but reducing
is better.
Note, if above rescuing happend, the Mlocked and the Unevictable field
mismatching happend in /proc/meminfo. but it doesn't cause any real
trouble.
=======================================================
[ INFO: possible circular locking dependency detected ]
2.6.28-rc2-mm1 #2
-------------------------------------------------------
lvm/1103 is trying to acquire lock:
(&cpu_hotplug.lock){--..}, at: [<
c0130789>] get_online_cpus+0x29/0x50
but task is already holding lock:
(&mm->mmap_sem){----}, at: [<
c01878ae>] sys_mlockall+0x4e/0xb0
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&mm->mmap_sem){----}:
[<
c0153da2>] check_noncircular+0x82/0x110
[<
c0185e6a>] might_fault+0x4a/0xa0
[<
c0156161>] validate_chain+0xb11/0x1070
[<
c0185e6a>] might_fault+0x4a/0xa0
[<
c0156923>] __lock_acquire+0x263/0xa10
[<
c015714c>] lock_acquire+0x7c/0xb0 (*) grab mmap_sem
[<
c0185e6a>] might_fault+0x4a/0xa0
[<
c0185e9b>] might_fault+0x7b/0xa0
[<
c0185e6a>] might_fault+0x4a/0xa0
[<
c0294dd0>] copy_to_user+0x30/0x60
[<
c01ae3ec>] filldir+0x7c/0xd0
[<
c01e3a6a>] sysfs_readdir+0x11a/0x1f0 (*) grab sysfs_mutex
[<
c01ae370>] filldir+0x0/0xd0
[<
c01ae370>] filldir+0x0/0xd0
[<
c01ae4c6>] vfs_readdir+0x86/0xa0 (*) grab i_mutex
[<
c01ae75b>] sys_getdents+0x6b/0xc0
[<
c010355a>] syscall_call+0x7/0xb
[<
ffffffff>] 0xffffffff
-> #2 (sysfs_mutex){--..}:
[<
c0153da2>] check_noncircular+0x82/0x110
[<
c01e3d2c>] sysfs_addrm_start+0x2c/0xc0
[<
c0156161>] validate_chain+0xb11/0x1070
[<
c01e3d2c>] sysfs_addrm_start+0x2c/0xc0
[<
c0156923>] __lock_acquire+0x263/0xa10
[<
c015714c>] lock_acquire+0x7c/0xb0 (*) grab sysfs_mutex
[<
c01e3d2c>] sysfs_addrm_start+0x2c/0xc0
[<
c04f8b55>] mutex_lock_nested+0xa5/0x2f0
[<
c01e3d2c>] sysfs_addrm_start+0x2c/0xc0
[<
c01e3d2c>] sysfs_addrm_start+0x2c/0xc0
[<
c01e3d2c>] sysfs_addrm_start+0x2c/0xc0
[<
c01e422f>] create_dir+0x3f/0x90
[<
c01e42a9>] sysfs_create_dir+0x29/0x50
[<
c04faaf5>] _spin_unlock+0x25/0x40
[<
c028f21d>] kobject_add_internal+0xcd/0x1a0
[<
c028f37a>] kobject_set_name_vargs+0x3a/0x50
[<
c028f41d>] kobject_init_and_add+0x2d/0x40
[<
c019d4d2>] sysfs_slab_add+0xd2/0x180
[<
c019d580>] sysfs_add_func+0x0/0x70
[<
c019d5dc>] sysfs_add_func+0x5c/0x70 (*) grab slub_lock
[<
c01400f2>] run_workqueue+0x172/0x200
[<
c014008f>] run_workqueue+0x10f/0x200
[<
c0140bd0>] worker_thread+0x0/0xf0
[<
c0140c6c>] worker_thread+0x9c/0xf0
[<
c0143c80>] autoremove_wake_function+0x0/0x50
[<
c0140bd0>] worker_thread+0x0/0xf0
[<
c0143972>] kthread+0x42/0x70
[<
c0143930>] kthread+0x0/0x70
[<
c01042db>] kernel_thread_helper+0x7/0x1c
[<
ffffffff>] 0xffffffff
-> #1 (slub_lock){----}:
[<
c0153d2d>] check_noncircular+0xd/0x110
[<
c04f650f>] slab_cpuup_callback+0x11f/0x1d0
[<
c0156161>] validate_chain+0xb11/0x1070
[<
c04f650f>] slab_cpuup_callback+0x11f/0x1d0
[<
c015433d>] mark_lock+0x35d/0xd00
[<
c0156923>] __lock_acquire+0x263/0xa10
[<
c015714c>] lock_acquire+0x7c/0xb0
[<
c04f650f>] slab_cpuup_callback+0x11f/0x1d0
[<
c04f93a3>] down_read+0x43/0x80
[<
c04f650f>] slab_cpuup_callback+0x11f/0x1d0 (*) grab slub_lock
[<
c04f650f>] slab_cpuup_callback+0x11f/0x1d0
[<
c04fd9ac>] notifier_call_chain+0x3c/0x70
[<
c04f5454>] _cpu_up+0x84/0x110
[<
c04f552b>] cpu_up+0x4b/0x70 (*) grab cpu_hotplug.lock
[<
c06d1530>] kernel_init+0x0/0x170
[<
c06d15e5>] kernel_init+0xb5/0x170
[<
c06d1530>] kernel_init+0x0/0x170
[<
c01042db>] kernel_thread_helper+0x7/0x1c
[<
ffffffff>] 0xffffffff
-> #0 (&cpu_hotplug.lock){--..}:
[<
c0155bff>] validate_chain+0x5af/0x1070
[<
c040f7e0>] dev_status+0x0/0x50
[<
c0156923>] __lock_acquire+0x263/0xa10
[<
c015714c>] lock_acquire+0x7c/0xb0
[<
c0130789>] get_online_cpus+0x29/0x50
[<
c04f8b55>] mutex_lock_nested+0xa5/0x2f0
[<
c0130789>] get_online_cpus+0x29/0x50
[<
c0130789>] get_online_cpus+0x29/0x50
[<
c017bc30>] lru_add_drain_per_cpu+0x0/0x10
[<
c0130789>] get_online_cpus+0x29/0x50 (*) grab cpu_hotplug.lock
[<
c0140cf2>] schedule_on_each_cpu+0x32/0xe0
[<
c0187095>] __mlock_vma_pages_range+0x85/0x2c0
[<
c0156945>] __lock_acquire+0x285/0xa10
[<
c0188f09>] vma_merge+0xa9/0x1d0
[<
c0187450>] mlock_fixup+0x180/0x200
[<
c0187548>] do_mlockall+0x78/0x90 (*) grab mmap_sem
[<
c01878e1>] sys_mlockall+0x81/0xb0
[<
c010355a>] syscall_call+0x7/0xb
[<
ffffffff>] 0xffffffff
other info that might help us debug this:
1 lock held by lvm/1103:
#0: (&mm->mmap_sem){----}, at: [<
c01878ae>] sys_mlockall+0x4e/0xb0
stack backtrace:
Pid: 1103, comm: lvm Not tainted 2.6.28-rc2-mm1 #2
Call Trace:
[<
c01555fc>] print_circular_bug_tail+0x7c/0xd0
[<
c0155bff>] validate_chain+0x5af/0x1070
[<
c040f7e0>] dev_status+0x0/0x50
[<
c0156923>] __lock_acquire+0x263/0xa10
[<
c015714c>] lock_acquire+0x7c/0xb0
[<
c0130789>] get_online_cpus+0x29/0x50
[<
c04f8b55>] mutex_lock_nested+0xa5/0x2f0
[<
c0130789>] get_online_cpus+0x29/0x50
[<
c0130789>] get_online_cpus+0x29/0x50
[<
c017bc30>] lru_add_drain_per_cpu+0x0/0x10
[<
c0130789>] get_online_cpus+0x29/0x50
[<
c0140cf2>] schedule_on_each_cpu+0x32/0xe0
[<
c0187095>] __mlock_vma_pages_range+0x85/0x2c0
[<
c0156945>] __lock_acquire+0x285/0xa10
[<
c0188f09>] vma_merge+0xa9/0x1d0
[<
c0187450>] mlock_fixup+0x180/0x200
[<
c0187548>] do_mlockall+0x78/0x90
[<
c01878e1>] sys_mlockall+0x81/0xb0
[<
c010355a>] syscall_call+0x7/0xb
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Tested-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Masami Hiramatsu [Wed, 12 Nov 2008 21:26:51 +0000 (13:26 -0800)]
kprobes: disable preempt for module_text_address() and kernel_text_address()
__register_kprobe() can be preempted after checking probing address but
before module_text_address() or try_module_get(), and in this interval
the module can be unloaded. In that case, try_module_get(probed_mod)
will access to invalid address, or kprobe will probe invalid address.
This patch uses preempt_disable() to protect it and uses
__module_text_address() and __kernel_text_address().
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Li Zefan [Wed, 12 Nov 2008 21:26:50 +0000 (13:26 -0800)]
freezer_cg: disable writing freezer.state of root cgroup
With this change, control file 'freezer.state' doesn't exist in root
cgroup, making root cgroup unfreezable.
I think it's reasonable to disallow freeze tasks in the root cgroup. And
then we can avoid fork overhead when freezer subsystem is compiled but not
used.
Also make writing invalid value to freezer.state returns EINVAL rather
than EIO. This is more consistent with other cgroup subsystem.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Li Zefan [Wed, 12 Nov 2008 21:26:49 +0000 (13:26 -0800)]
freezer_cg: remove task_lock from freezer_fork()
In theory the task can be moved to another cgroup and the freezer will be
freed right after task_lock is dropped, so the lock results in zero
protection.
But in the case of freezer_fork() no lock is needed, since the task is not
in tasklist yet so it won't be moved to another cgroup, so task->cgroups
won't be changed or invalidated.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Cc: "Serge E. Hallyn" <serue@us.ibm.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
John Linn [Wed, 12 Nov 2008 21:25:38 +0000 (13:25 -0800)]
GPIO: add new Xilinx driver for powerpc
This driver supports the Xilinx XPS GPIO IP core which has the typical
GPIO features.
Signed-off-by: Kiran Sutariya <kirans@xilinx.com>
Signed-off-by: John Linn <john.linn@xilinx.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: "Grant Likely" <grant.likely@secretlab.ca>
Cc: <avorontsov@ru.mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Rientjes [Wed, 12 Nov 2008 21:25:37 +0000 (13:25 -0800)]
cpusets: update mems allowed in page allocator
If all allowable memory is unreclaimable, it is possible to loop forever
in the page allocator for ~__GFP_NORETRY allocations.
During this time, it is also possible for a task's cpuset to expand its
set of allowable nodes so that it now includes free memory. The cached
copy of this set, current->mems_allowed, is stale, however, since there
has not been a subsequent call to cpuset_update_task_memory_state().
The cached copy of the set of allowable nodes is now updated in the page
allocator's slow path so the additional memory is available to
get_page_from_freelist().
[akpm@linux-foundation.org: add comment]
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Paul Menage <menage@google.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Darrick J. Wong [Wed, 12 Nov 2008 21:25:36 +0000 (13:25 -0800)]
i5000-edac: hold reference to mci kobject
It turns out that edac_mc_del_mc will kobject_put the last kref on the
mci object.
If the timing is just right, that means that the mci object is freed
before before i5000_remove_one has a chance to free the resources
associated with it, causing a null pointer exceptions when unloading the
driver. Insert a kobject_{get,put} pair so that this doesn't happen.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Darrick J. Wong [Wed, 12 Nov 2008 21:25:00 +0000 (13:25 -0800)]
Fix platform drivers that crash on suspend/resume
It turns out that if one registers a struct platform_device, the
platform device code expects that platform_device.device->driver points
to a struct driver inside a struct platform_driver.
This is not the case with the ipmi-si, ipmi-msghandler and ibmaem
drivers, which causes the suspend/resume hook functions to jump off into
nowhere, causing a crash. Make this assumption hold true for these
three drivers.
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Greg KH <greg@kroah.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nicolas Ferre [Wed, 12 Nov 2008 21:24:59 +0000 (13:24 -0800)]
atmel_lcdfb: change irq_base definition to allow error reporting
Changed because old the definition of unsigned long cannot be negative.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reported-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Henrik Rydberg [Wed, 12 Nov 2008 21:24:58 +0000 (13:24 -0800)]
hwmon: applesmc: add support for Macbook 4
This patch adds accelerometer and temperature sensor support for Macbook 4.
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Cc: Nicolas Boichat <nicolas@boichat.ch
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adam Litke [Wed, 12 Nov 2008 21:24:56 +0000 (13:24 -0800)]
hugetlb: make unmap_ref_private multi-size-aware
Oops. Part of the hugetlb private reservation code was not fully
converted to use hstates.
When a huge page must be unmapped from VMAs due to a failed COW,
HPAGE_SIZE is used in the call to unmap_hugepage_range() regardless of
the page size being used. This works if the VMA is using the default
huge page size. Otherwise we might unmap too much, too little, or
trigger a BUG_ON. Rare but serious -- fix it.
Signed-off-by: Adam Litke <agl@us.ibm.com>
Cc: Jon Tollefson <kniht@linux.vnet.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 13 Nov 2008 00:41:27 +0000 (16:41 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
bnx2: fix poll_controller to pass proper structures and check all rx queues
niu: Fix readq implementation when architecture does not provide one.
hostap: pad the skb->cb usage in lieu of a proper fix
rtl8187 : support for Sitecom WL-168 0001 v4
mac80211: fix notify_mac function
rtl8187: Add Abocom USB ID
net: put_cmsg_compat + SO_TIMESTAMP[NS]: use same name for value as caller
tcp_htcp: last_cong bug fix
[netdrvr] smc911x: fix for driver resume (and compilation warning)
RDMA/cxgb3: deadlock in iw_cxgb3 can cause hang when configuring interface.
cxgb3 - Limit multiqueue setting to msi-x
cxgb3 - eeprom read fixes
myri10ge: fix stop/go ordering even more
Neil Horman [Thu, 13 Nov 2008 00:23:44 +0000 (16:23 -0800)]
bnx2: fix poll_controller to pass proper structures and check all rx queues
Fix bnx2 so that netpoll works properly. Specifically:
1) Fix parameters to bnx2_interrupt to be a struct bnx2_napi rather than a
struct net_device
2) Fix poll_controller method to check every queue in the rx case so frames
aren't missed
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 12 Nov 2008 22:37:29 +0000 (14:37 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6
David S. Miller [Wed, 12 Nov 2008 22:32:54 +0000 (14:32 -0800)]
niu: Fix readq implementation when architecture does not provide one.
This fixes a TX hang reported by Jesper Dangaard Brouer.
When an architecutre cannot provide a fully functional
64-bit atomic readq/writeq, the driver must implement
it's own. This is because only the driver can say whether
doing something like using two 32-bit reads to implement
the full 64-bit read will actually work properly.
In particular one of the issues is whether the top 32-bits
or the bottom 32-bits of the 64-bit register should be read
first. There could be side effects, and in fact that is
exactly the problem here.
The TX_CS register has counters in the upper 32-bits and
state bits in the lower 32-bits. A read clears the state
bits.
We would read the counter half before the state bit half.
That first read would clear the state bits, and then the
driver thinks that no interrupts are pending because the
interrupt indication state bits are seen clear every time.
Fix this by reading the bottom half before the upper half.
Tested-by: Jesper Dangaard Brouer <jdb@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Johannes Berg [Wed, 12 Nov 2008 21:54:22 +0000 (16:54 -0500)]
hostap: pad the skb->cb usage in lieu of a proper fix
Like mac80211 did, this driver makes 'clever' use of skb->cb to pass
information along with an skb as it is requeued from the virtual device
to the physical wireless device. Unfortunately, that trick no longer
works...
Unlike mac80211, code complexity and driver apathy makes this hack
the best option we have in the short run. Hopefully someone will
eventually be motivated to code a proper fix before all the effected
hardware dies.
(Above text by me. Johannes officially disavows all knowledge of this
hack. -- JWL)
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Bob Jolliffe [Wed, 12 Nov 2008 20:16:59 +0000 (20:16 +0000)]
rtl8187 : support for Sitecom WL-168 0001 v4
the Sitecom 0001 v4 with product id 0x0df6:0028, uses Realtek's
RTL8187B and work fine with new 2.6.27 driver.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Johannes Berg [Tue, 11 Nov 2008 10:28:04 +0000 (11:28 +0100)]
mac80211: fix notify_mac function
The ieee80211_notify_mac() function uses ieee80211_sta_req_auth() which
in turn calls ieee80211_set_disassoc() which calls a few functions that
need to be able to sleep, so ieee80211_notify_mac() cannot use RCU
locking for the interface list and must use rtnl locking instead.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Ivan Kuten [Tue, 11 Nov 2008 01:39:25 +0000 (19:39 -0600)]
rtl8187: Add Abocom USB ID
Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Linus Torvalds [Wed, 12 Nov 2008 20:00:15 +0000 (12:00 -0800)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
hrtimer: clean up unused callback modes
Linus Torvalds [Wed, 12 Nov 2008 19:48:54 +0000 (11:48 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/djbw/async_tx
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
dmaengine: struct device - replace bus_id with dev_name(), dev_set_name()
iop-adma: use iop_paranoia() for debug BUG_ONs
iop-adma: add a dummy read to flush next descriptor update
Ingo Molnar [Wed, 12 Nov 2008 19:05:50 +0000 (20:05 +0100)]
sched: fix init_idle()'s use of sched_clock()
Maciej Rutecki reported:
> I have this bug during suspend to disk:
>
> [ 188.592151] Enabling non-boot CPUs ...
> [ 188.592151] SMP alternatives: switching to SMP code
> [ 188.666058] BUG: using smp_processor_id() in preemptible
> [
00000000]
> code: suspend_to_disk/2934
> [ 188.666064] caller is native_sched_clock+0x2b/0x80
Which, as noted by Linus, was caused by me, via:
7cbaef9c "sched: optimize sched_clock() a bit"
Move the rq locking a bit earlier in the initialization sequence,
that will make the sched_clock() call in init_idle() non-preemptible.
Reported-by: Maciej Rutecki <maciej.rutecki@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Linus Torvalds [Wed, 12 Nov 2008 18:56:31 +0000 (10:56 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IPoIB: Fix crash in path_rec_completion()
IPoIB: Fix hang in ipoib_flush_paths()
IPoIB: Don't enable NAPI when it's already enabled
RDMA/cxgb3: Fix deadlock in iw_cxgb3 (hang when configuring interface)
IB/ehca: Remove reference to special QP in case of port activation failure
IB/mlx4: Set umem field to NULL in mlx4_ib_alloc_fast_reg_mr()
mlx4_core: Fix unused variable warning
RDMA/nes: Mitigate compatibility issue regarding PCIe write credits
RDMA/nes: Fix CQ allocation scheme for multicast receive queue apps
RDMA/nes: Correct handling of PBL resources
RDMA/nes: Reindent mis-indented spinlocks
RDMA/cxgb3: Fix too-big reserved field zeroing in iwch_post_zb_read()
IB/ipath: Fix RDMA write with immediate copy of last packet
Linus Torvalds [Wed, 12 Nov 2008 18:42:38 +0000 (10:42 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Fix IDT/STAC multiple HP detection
ALSA: hda - Fix input pin initialization for STAC/IDT codecs
ALSA: hda - Add missing analog-mux mixer creation for STAC9200
David Howells [Wed, 12 Nov 2008 15:35:55 +0000 (15:35 +0000)]
MN10300: Don't do misalignment handling for userspace
Don't do misalignment handling for userspace misalignment faults: just
generate an appropriate SIGBUS instead.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:50 +0000 (15:35 +0000)]
MN10300: Don't handle misaligned loading and storing of SP
Don't handle the misaligned loading and storing of the SP register as in C code
that's most certainly a compiler bug.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:45 +0000 (15:35 +0000)]
MN10300: Handle misaligned SP-based operands
Support misalignment handling for instructions that have kernel SP-based
address operands, including fixing those that include IMM8 or IMM16
displacements.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:40 +0000 (15:35 +0000)]
MN10300: Fix misaligned index-register addressing handling
Fix misalignment handling for an address calculated from the sum of two
registers.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:35 +0000 (15:35 +0000)]
MN10300: Handle misaligned postinc-with-imm addressing mode correctly
Correctly handle misalignment in MOV instructions with postinc-with-immediate
addressing mode operands. In these, the immediate value is the increment to
be applied the address register, not the displacement to the address.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:30 +0000 (15:35 +0000)]
MN10300: Perform misalignment fixups of MOV_Lcc
Perform misalignment fixups of the MOV_Lcc instructions (move postinc memory
to register and conditionally loop).
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:25 +0000 (15:35 +0000)]
MN10300: Allow misalignment fixup in interrupt handling
Allow misalignment fixup in interrupt handling in the MN10300 arch.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:20 +0000 (15:35 +0000)]
MN10300: Fix register-postinc addressing misalignment handling
Fix misalignment handling of operands with register postincrement addressing.
The flag to indicate that postincrement is required should not be interpreted
as an specification of a value to be added to the address.
Also add BUGs to catch unimplemented parameter markings in the opcodes table.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:14 +0000 (15:35 +0000)]
MN10300: Extract the displacement from an insn correctly in misalignment fixup
Extract the displacement from an MN10300 instruction correctly in the
misalignment fixup handler.
The code should extract the displacement in LSB order, not MSB order.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:09 +0000 (15:35 +0000)]
MN10300: Add further misalignment fixups
Add further misalignment fixup support to the MN10300 arch, notably for ABS32
and SP+disp addressing.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:35:04 +0000 (15:35 +0000)]
MN10300: Add built-in testing for misalignment handler
Add configurable built-in testing for the MN10300 misalignment handler.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Wed, 12 Nov 2008 15:34:59 +0000 (15:34 +0000)]
MN10300: Clean up the misalignment handler a little
Clean up the MN10300 misalignment handler a little by:
(1) Use ilog2() rather than doing implementing log2() locally.
(2) Make format_tbl[] const and static.
(3) Making the debugging prints more consistent.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 12 Nov 2008 18:38:42 +0000 (10:38 -0800)]
Merge branch 'kvm-updates/2.6.28' of git://git./linux/kernel/git/avi/kvm
* 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: Fix pit memory leak if unable to allocate irq source id
KVM: ia64: fix vmm_spin_{un}lock for !CONFIG_SMP
KVM: VMX: Set IGMT bit in EPT entry
KVM: Require the PCI subsystem
x86: KVM guest: fix section mismatch warning in kvmclock.c
KVM: ia64: Use guest signal mask when blocking
KVM: MMU: increase per-vcpu rmap cache alloc size
Denys Vlasenko [Wed, 12 Nov 2008 00:24:41 +0000 (01:24 +0100)]
parisc: fix find_extend_vma() breakage
The STACK_GROWSUP case of stack expansion was missing a test for 'prev',
which got removed by commit
cb8f488c33539f096580e202f5438a809195008f
("mmap.c: deinline a few functions") by mistake.
I found my original email in "sent" folder. The patch in that mail
does NOT remove !prev. That change had beed added by someone else.
Ok, I think we are not much interested in who did it, let's
fix it for good.
[ "It looks like this was caused by me fixing rejects. That was the
fancy include-lots-of-context-so-it-wont-apply patch." - akpm ]
Reported-and-bisected-by: Helge Deller <deller@gmx.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Wed, 12 Nov 2008 18:24:46 +0000 (10:24 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (47 commits)
ACPI: pci_link: remove acpi_irq_balance_set() interface
fujitsu-laptop: Add DMI callback for Lifebook S6420
ACPI: EC: Don't do transaction from GPE handler in poll mode.
ACPI: EC: lower interrupt storm treshold
ACPICA: Use spinlock for acpi_{en|dis}able_gpe
ACPI: EC: restart failed command
ACPI: EC: wait for last write gpe
ACPI: EC: make kernel messages more useful when GPE storm is detected
ACPI: EC: revert msleep patch
thinkpad_acpi: fingers off backlight if video.ko is serving this functionality
sony-laptop: fingers off backlight if video.ko is serving this functionality
msi-laptop: fingers off backlight if video.ko is serving this functionality
fujitsu-laptop: fingers off backlight if video.ko is serving this functionality
eeepc-laptop: fingers off backlight if video.ko is serving this functionality
compal: fingers off backlight if video.ko is serving this functionality
asus-acpi: fingers off backlight if video.ko is serving this functionality
Acer-WMI: fingers off backlight if video.ko is serving this functionality
ACPI video: if no ACPI backlight support, use vendor drivers
ACPI: video: Ignore devices that aren't present in hardware
Delete an unwanted return statement at evgpe.c
...
Roland Dreier [Wed, 12 Nov 2008 18:24:44 +0000 (10:24 -0800)]
Merge branches 'cxgb3', 'ehca', 'ipath', 'ipoib', 'mlx4' and 'nes' into for-next
Yossi Etigin [Wed, 12 Nov 2008 18:24:39 +0000 (10:24 -0800)]
IPoIB: Fix crash in path_rec_completion()
Fix a crash in path_rec_completion() during an SM up/down loop. If
more than one path record request is issued, the first completion
releases path->done, allowing ipoib_flush_paths() to free the path,
and thus corrupting it for the second completion.
Commit
ee1e2c82 ("IPoIB: Refresh paths instead of flushing them on SM
change events") added the field path->valid and changed the test "if
(!path)" to "if (!path || !path->valid)". This change made it
possible for a path with an outstanding query to pass the test and
issue another query on the same path. Having two queries on the same
path leads to a crash.
This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=1325>.
Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Yossi Etigin [Wed, 12 Nov 2008 18:24:38 +0000 (10:24 -0800)]
IPoIB: Fix hang in ipoib_flush_paths()
ipoib_flush_paths() can hang during an SM up/down loop: if
path_rec_start() fails (for instance, because there is no sm_ah), the
path is still added to the path list by neigh_add_path(). Then,
ipoib_flush_paths() will wait for path->done, but it will never
complete because the request was not issued at all. Fix this by
completing path->done if issuing the query fails.
This fixes <https://bugs.openfabrics.org/show_bug.cgi?id=1329>.
Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Yossi Etigin [Wed, 12 Nov 2008 18:24:36 +0000 (10:24 -0800)]
IPoIB: Don't enable NAPI when it's already enabled
If a P_Key is not present when an interface is created, ipoib_open()
will return after doing napi_enable(). ipoib_open() will be called
again from ipoib_pkey_poll() when the P_Key appears, after NAPI has
already been enabled, and try to enable it again. This triggers a
BUG_ON() in napi_enable().
Fix this by moving the call to napi_enable() to after the test for
P_Key presence.
Signed-off-by: Yossi Etigin <yosefe@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Steve Wise [Wed, 12 Nov 2008 18:16:47 +0000 (10:16 -0800)]
RDMA/cxgb3: Fix deadlock in iw_cxgb3 (hang when configuring interface)
When the iw_cxgb3 module's cxgb3_client "add" func gets called by the
cxgb3 module, the iwarp driver ends up calling the ethtool ops
get_drvinfo function in cxgb3 to get the fw version and other info.
Currently the iwarp driver grabs the rtnl lock around this down call
to serialize. As of 2.6.27 or so, things changed such that the rtnl
lock is held around the call to the netdev driver open function. Also
the cxgb3_client "add" function doesn't get called if the device is
down.
So, if you load cxgb3, then load iw_cxgb3, then ifconfig up the
device, the iw_cxgb3 add func gets called with the rtnl_lock held. If
you load cxgb3, ifconfig up the device, then load iw_cxgb3, the add
func gets called without the rtnl_lock held. The former causes the
deadlock, the latter does not.
In addition, there are iw_cxgb3 sysfs handlers that also can call down
into cxgb3 to gather the fw and hw versions. These can be called
concurrently on different processors and at any time. Thus we need to
push this serialization down in the cxgb3 driver get_drvinfo func.
The fix is to remove rtnl lock usage, and use a per-device lock in cxgb3.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Balbir Singh [Wed, 12 Nov 2008 10:49:00 +0000 (16:19 +0530)]
sched: fix stale value in average load per task
Impact: fix load balancer load average calculation accuracy
cpu_avg_load_per_task() returns a stale value when nr_running is 0.
It returns an older stale (caculated when nr_running was non zero) value.
This patch returns and sets rq->avg_load_per_task to zero when nr_running
is 0.
Compile and boot tested on a x86_64 box.
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Patrick Ohly [Wed, 12 Nov 2008 09:54:56 +0000 (01:54 -0800)]
net: put_cmsg_compat + SO_TIMESTAMP[NS]: use same name for value as caller
In __sock_recv_timestamp() the additional SCM_TIMESTAMP[NS] is used. This
has the same value as SO_TIMESTAMP[NS], so this is a purely cosmetic change.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Doug Leith [Wed, 12 Nov 2008 09:41:09 +0000 (01:41 -0800)]
tcp_htcp: last_cong bug fix
This patch fixes a minor bug in tcp_htcp.c which has been
highlighted by Lachlan Andrew and Lawrence Stewart. Currently, the
time since the last congestion event, which is stored in variable
last_cong, is reset whenever there is a state change into
TCP_CA_Open. This includes transitions of the type
TCP_CA_Open->TCP_CA_Disorder->TCP_CA_Open which are not associated
with backoff of cwnd. The patch changes last_cong to be updated
only on transitions into TCP_CA_Open that occur after experiencing
the congestion-related states TCP_CA_Loss, TCP_CA_Recovery,
TCP_CA_CWR.
Signed-off-by: Doug Leith <doug.leith@nuim.ie>
Signed-off-by: David S. Miller <davem@davemloft.net>
Takashi Iwai [Wed, 12 Nov 2008 09:06:31 +0000 (10:06 +0100)]
Merge branch 'topic/fix/hda' into for-linus
Takashi Iwai [Wed, 12 Nov 2008 08:48:04 +0000 (09:48 +0100)]
ALSA: hda - Fix IDT/STAC multiple HP detection
Due to the recent change for multiple HP as line-out switch, only
one of the multiple headphons (usually a wrong one) is toggled
and the other pins are still disabled. This causes the silent output
problem on some Dell laptops.
Also, the hp_switch check is screwed up when a line-in or a mic-in
jack exists. This is added as an additional output, but hp_switch
check doesn't take it into account.
This patch fixes these issues: simplify hp_switch check by using
the NID instead of bool, and clean up / fix the toggle of HP pins
in unsol event handler code.
Reference: Novell bnc#443267
https://bugzilla.novell.com/show_bug.cgi?id=443267
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Peter Zijlstra [Wed, 12 Nov 2008 08:36:35 +0000 (09:36 +0100)]
hrtimer: clean up unused callback modes
Impact: cleanup
git grep HRTIMER_CB_IRQSAFE revealed half the callback modes are actually
unused.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Len Brown [Wed, 12 Nov 2008 02:17:26 +0000 (21:17 -0500)]
Merge branch 'ec' into release
Len Brown [Wed, 12 Nov 2008 02:17:03 +0000 (21:17 -0500)]
Merge branch 'processor-256' into release
Len Brown [Wed, 12 Nov 2008 02:15:50 +0000 (21:15 -0500)]
Merge branch 'video' into release
Conflicts:
Documentation/kernel-parameters.txt
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Wed, 12 Nov 2008 02:14:49 +0000 (21:14 -0500)]
Merge branch 'sysfs' into release
Len Brown [Wed, 12 Nov 2008 02:14:25 +0000 (21:14 -0500)]
Merge branch 'sony' into release
Len Brown [Wed, 12 Nov 2008 02:14:15 +0000 (21:14 -0500)]
Merge branch 'power' into release
Len Brown [Wed, 12 Nov 2008 02:14:11 +0000 (21:14 -0500)]
Merge branch 'misc' into release
Len Brown [Wed, 12 Nov 2008 02:14:01 +0000 (21:14 -0500)]
Merge branch 'bugzilla-11917' into release
Len Brown [Wed, 12 Nov 2008 02:13:55 +0000 (21:13 -0500)]
Merge branch 'bugzilla-11539' into release
Len Brown [Wed, 12 Nov 2008 02:13:50 +0000 (21:13 -0500)]
Merge branch 'bugzilla-11312' into release
Bjorn Helgaas [Wed, 5 Nov 2008 23:17:52 +0000 (16:17 -0700)]
ACPI: pci_link: remove acpi_irq_balance_set() interface
This removes the acpi_irq_balance_set() interface from the PCI
interrupt link driver.
x86 used acpi_irq_balance_set() to tell the PCI interrupt link
driver to configure links to minimize IRQ sharing. But the link
driver can easily figure out whether to turn on IRQ balancing
based on the IRQ model (PIC/IOAPIC/etc), so we can get rid of
that external interface.
It's better for the driver to figure this out at init-time. If
we set it externally via the x86 code, the interface reduces
modularity, and we depend on the fact that acpi_process_madt()
happens before we process the kernel command line.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Tony Vroon [Sun, 9 Nov 2008 04:20:05 +0000 (04:20 +0000)]
fujitsu-laptop: Add DMI callback for Lifebook S6420
The Lifebook S6420 is the ICH9M-based follow-up to the S6410. The application panel
contains the following keys: lock, mobility center, eco, info.
Whilst key 4 might be more appropriate for help then key 2, I've done things the
S6410 way. I can confirm that backlight control is functional, and that the lock key
activates the Gnome screensaver as expected.
Signed-off-by: Tony Vroon <tony@linx.net>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>