GitHub/LineageOS/android_kernel_motorola_exynos9610.git
14 years agohwmon: lis3: Power on corrections
Samu Onkalo [Fri, 22 Oct 2010 11:57:27 +0000 (07:57 -0400)]
hwmon: lis3: Power on corrections

Sometimes lis3 chip seems to fail to setup factory tuning at boot up.
This probably happens if there is some odd power ramp down ramp up sequence
for example in device restart. Set boot bit in control2 register to
trig boot sequence manually and wait until it is finished.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: lis3: Update coordinates at polled device open
Samu Onkalo [Fri, 22 Oct 2010 11:57:26 +0000 (07:57 -0400)]
hwmon: lis3: Update coordinates at polled device open

Call input device poll function at device open to refresh coordinates
immediately. This is needed for the case where poll interval is set to
zero and coordinate updates happens purely under interrupt control.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: lis3: Cleanup interrupt handling
Samu Onkalo [Fri, 22 Oct 2010 11:57:25 +0000 (07:57 -0400)]
hwmon: lis3: Cleanup interrupt handling

Irqcfg moved to chip data instead of platform data.
This simplifies access in interrupt handler little bit.

Input device open and close functions set status for
interrupt threaded handler once.

Unnecessary check for interrupt source removed since
it is enough that active interrupt line indicates that
there was an interrupt.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: lis3: regulator control
Samu Onkalo [Fri, 22 Oct 2010 11:57:24 +0000 (07:57 -0400)]
hwmon: lis3: regulator control

Based on pm_runtime control, turn lis3 regulators on and off.
Perform context save and restore on transitions.

Feature is optional and must be enabled in platform data.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: lis3: pm_runtime support
Samu Onkalo [Fri, 22 Oct 2010 11:57:23 +0000 (07:57 -0400)]
hwmon: lis3: pm_runtime support

Add pm_runtime support to lis3 core driver.
Add pm_runtime support to lis3 i2c driver.

spi and hp_accel drivers are not yet supported. Old always
on functionality remains for those.

For sysfs there is 5 second delay before turning off the
chip to avoid long ramp up delay.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agoKirkwood: add fan support for Network Space Max v2
Simon Guinot [Fri, 22 Oct 2010 09:29:18 +0000 (05:29 -0400)]
Kirkwood: add fan support for Network Space Max v2

Signed-off-by: Simon Guinot <sguinot@lacie.com>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: add generic GPIO fan driver
Simon Guinot [Thu, 21 Oct 2010 22:44:19 +0000 (00:44 +0200)]
hwmon: add generic GPIO fan driver

This patch adds hwmon support for fans connected to GPIO lines.

Platform specific information such as GPIO pinout and speed conversion array
(rpm from/to GPIO value) are passed to the driver via platform_data.

Signed-off-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: (coretemp) fix reading of microcode revision (v2)
Jan Beulich [Fri, 8 Oct 2010 08:59:38 +0000 (04:59 -0400)]
hwmon: (coretemp) fix reading of microcode revision (v2)

According to the documentation, simply reading the respective MSR
isn't sufficient: It should be written with zeros, cpuid(1) be
executed, and then read (see arch/x86/kernel/cpu/intel.c for an
example).

v2: Fail probe when microcode revision cannot be determined, but is
needed to check for proper operation.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: ({core, pkg, via-cpu}temp) remove unnecessary CONFIG_HOTPLUG_CPU ifdefs
Chen Gong [Sat, 9 Oct 2010 02:01:48 +0000 (22:01 -0400)]
hwmon: ({core, pkg, via-cpu}temp) remove unnecessary CONFIG_HOTPLUG_CPU ifdefs

CONFIG_HOTPLUG_CPU is used too much in some drivers.
This patch clean them up.

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: (pkgtemp) align driver initialization style with coretemp
Chen Gong [Fri, 8 Oct 2010 05:53:35 +0000 (05:53 +0000)]
hwmon: (pkgtemp) align driver initialization style with coretemp

pkgtemp is derived from coretemp, so some reasonable
logics should be applied onto pkgtemp, too. Such as
the init logic here.

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: LTC4261 Hardware monitoring driver
Guenter Roeck [Fri, 25 Jun 2010 18:59:54 +0000 (11:59 -0700)]
hwmon: LTC4261 Hardware monitoring driver

This driver adds support for Linear Technology LTC4261 I2C Negative
Voltage Hot Swap Controller.

Reviewed-by: Ira W. Snyder <iws@ovro.caltech.edu>
Reviewed-by: Tom Grennan <tom.grennan@ericsson.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: (lis3) add axes module parameter for custom axis-mapping
Takashi Iwai [Fri, 1 Oct 2010 21:14:25 +0000 (17:14 -0400)]
hwmon: (lis3) add axes module parameter for custom axis-mapping

The axis-mapping of lis3dev device on many (rather most) HP machines
doesn't follow the standard.  When each new model appears, users need to
adjust again.  Testing this requires the rebuild of kernel, thus it's not
trivial for end-users.

This patch adds a module parameter "axes" to allow a custom axis-mapping
without patching and recompiling the kernel driver.  User can pass the
parameter such as axes=3,2,1.  Also it can be changed via sysfs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: (hp_accel) Add HP Mini 510x family support
Masanari Iida [Fri, 27 Aug 2010 00:21:43 +0000 (00:21 +0000)]
hwmon: (hp_accel) Add HP Mini 510x family support

This patch is an enhanced version of Takashi Iwai's
[PATCH] hp_accel: Add quirks for HP ProBook 532x and HP Mini 5102
My HP Mini 5101 works fine with this patch.
Confirmed with Tux Racer.

Signed-off by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Cc: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agohwmon: (lis3) Add support for new LIS3DC / HP3DC chip
Takashi Iwai [Thu, 23 Sep 2010 17:01:39 +0000 (10:01 -0700)]
hwmon: (lis3) Add support for new LIS3DC / HP3DC chip

A new version of LIS3 chip has slight incompatibilities from former
versions.  This patch adds the minimal support for it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agox86/hwmon: remove inclusion of unnecessary headers from {core, pkg, via-cpu}temp.c
Jan Beulich [Mon, 13 Sep 2010 10:32:08 +0000 (10:32 +0000)]
x86/hwmon: remove inclusion of unnecessary headers from {core, pkg, via-cpu}temp.c

These likely originate from these drivers being clones of one another
and/or other drivers which actually needed these includes.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agox86/hwmon: (coretemp) cosmetic cleanup
Jan Beulich [Mon, 13 Sep 2010 10:28:35 +0000 (10:28 +0000)]
x86/hwmon: (coretemp) cosmetic cleanup

"break" after "return" is at best bogus (good compilers even warn about
the "break" being unreachable).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agox86/hwmon: {core, pkg, via}cpu_temp_device_remove() can all be __cpuinit
Jan Beulich [Fri, 24 Sep 2010 05:31:10 +0000 (22:31 -0700)]
x86/hwmon: {core, pkg, via}cpu_temp_device_remove() can all be __cpuinit

... as they're being called only from a __cpuinit function.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
14 years agoMerge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 25 Oct 2010 17:59:31 +0000 (10:59 -0700)]
Merge branch 'davinci-for-linus' of git://git./linux/kernel/git/khilman/linux-davinci

* 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: (50 commits)
  davinci: fix remaining board support after io_pgoffst removal
  davinci: mityomapl138: make file local data static
  arm/davinci: remove duplicated include
  davinci: Initial support for Omapl138-Hawkboard
  davinci: MityDSP-L138/MityARM-1808 read MAC address from I2C Prom
  davinci: add tnetv107x touchscreen platform device
  input: add driver for tnetv107x touchscreen controller
  davinci: add keypad config for tnetv107x evm board
  davinci: add tnetv107x keypad platform device
  input: add driver for tnetv107x on-chip keypad controller
  net: davinci_emac: cleanup unused cpdma code
  net: davinci_emac: switch to new cpdma layer
  net: davinci_emac: separate out cpdma code
  net: davinci_emac: cleanup unused mdio emac code
  omap: cleanup unused davinci mdio arch code
  davinci: cleanup mdio arch code and switch to phy_id
  net: davinci_emac: switch to new mdio
  omap: add mdio platform devices
  davinci: add mdio platform devices
  net: davinci_emac: separate out davinci mdio
  ...

Fix up trivial conflict in drivers/input/keyboard/Kconfig (two entries
added next to each other - one from the davinci merge, one from the
input merge)

14 years agoMerge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
Linus Torvalds [Mon, 25 Oct 2010 17:08:21 +0000 (10:08 -0700)]
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd

* 'for-linus' of git://git.open-osd.org/linux-open-osd:
  exofs: Remove inode->i_count manipulation in exofs_new_inode
  fs/exofs: typo fix of faild to failed
  exofs: Set i_mapping->backing_dev_info anyway
  exofs: Cleaup read path in regard with read_for_write

14 years agox86-32, mm: Remove duplicated include
Borislav Petkov [Mon, 25 Oct 2010 16:15:22 +0000 (18:15 +0200)]
x86-32, mm: Remove duplicated include

Commit b40827fa7268 ("x86-32, mm: Add an initial page table for core
bootstrapping") added an include directive which is needless and is
taken care of by a previous one.  Remove it.

Caught-by: Jaswinder Singh Rajput <jaswinderlinux@gmail.com>
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoexofs: Remove inode->i_count manipulation in exofs_new_inode
Boaz Harrosh [Sat, 16 Oct 2010 08:14:01 +0000 (19:14 +1100)]
exofs: Remove inode->i_count manipulation in exofs_new_inode

exofs_new_inode() was incrementing the inode->i_count and
decrementing it in create_done(), in a bad attempt to make sure
the inode will still be there when the asynchronous create_done()
finally arrives. This was very stupid because iput() was not called,
and if it was actually needed, it would leak the inode.

However all this is not needed, because at exofs_evict_inode()
we already wait for create_done() by waiting for the
object_created event. Therefore remove the superfluous ref counting
and just Thicken the comment at exofs_evict_inode() a bit.

While at it change places that open coded wait_obj_created()
to call the already available wrapper.

CC: Dave Chinner <dchinner@redhat.com>
CC: Christoph Hellwig <hch@lst.de>
CC: Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
14 years agofs/exofs: typo fix of faild to failed
Joe Perches [Fri, 22 Oct 2010 05:17:17 +0000 (22:17 -0700)]
fs/exofs: typo fix of faild to failed

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
14 years agoMerge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Mon, 25 Oct 2010 15:36:50 +0000 (08:36 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (48 commits)
  [S390] topology: export cpu topology via proc/sysinfo
  [S390] topology: move topology sysinfo code
  [S390] topology: clean up facility detection
  [S390] cleanup facility list handling
  [S390] enable ARCH_DMA_ADDR_T_64BIT with 64BIT
  [S390] dasd: ignore unsolicited interrupts for DIAG
  [S390] kvm: Enable z196 instruction facilities
  [S390] dasd: fix unsolicited interrupt recognition
  [S390] dasd: fix use after free in dbf
  [S390] kvm: Fix badness at include/asm/mmu_context.h:83
  [S390] cio: fix I/O cancel function
  [S390] topology: change default
  [S390] smp: use correct cpu address in print_cpu_info()
  [S390] remove ieee_instruction_pointer from thread_struct
  [S390] cleanup system call parameter setup
  [S390] correct alignment of cpuid structure
  [S390] cleanup lowcore access from external interrupts
  [S390] cleanup lowcore access from program checks
  [S390] pgtable: move pte_mkhuge() from hugetlb.h to pgtable.h
  [S390] fix SIGBUS handling
  ...

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Mon, 25 Oct 2010 15:32:05 +0000 (08:32 -0700)]
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: (365 commits)
  ALSA: hda - Disable sticky PCM stream assignment for AD codecs
  ALSA: usb - Creative USB X-Fi volume knob support
  ALSA: ca0106: Use card specific dac id for mute controls.
  ALSA: ca0106: Allow different sound cards to use different SPI channel mappings.
  ALSA: ca0106: Create a nice spot for mapping channels to dacs.
  ALSA: ca0106: Move enabling of front dac out of hardcoded setup sequence.
  ALSA: ca0106: Pull out dac powering routine into separate function.
  ALSA: ca0106 - add Sound Blaster 5.1vx info.
  ASoC: tlv320dac33: Use usleep_range for delays
  ALSA: usb-audio: add Novation Launchpad support
  ALSA: hda - Add workarounds for CT-IBG controllers
  ALSA: hda - Fix wrong TLV mute bit for STAC/IDT codecs
  ASoC: tpa6130a2: Error handling for broken chip
  ASoC: max98088: Staticise m98088_eq_band
  ASoC: soc-core: Fix codec->name memory leak
  ALSA: hda - Apply ideapad quirk to Acer laptops with Cxt5066
  ALSA: hda - Add some workarounds for Creative IBG
  ALSA: hda - Fix wrong SPDIF NID assignment for CA0110
  ALSA: hda - Fix codec rename rules for ALC662-compatible codecs
  ALSA: hda - Add alc_init_jacks() call to other codecs
  ...

14 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb
Linus Torvalds [Mon, 25 Oct 2010 15:30:48 +0000 (08:30 -0700)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/dvrabel/uwb

* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb:
  uwb: Orphan the UWB and WUSB subsystems
  uwb: Remove the WLP subsystem and drivers

14 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platf...
Linus Torvalds [Mon, 25 Oct 2010 15:28:13 +0000 (08:28 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mjg59/platform-drivers-x86

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (44 commits)
  eeepc-wmi: Add cpufv sysfs interface
  eeepc-wmi: add additional hotkeys
  panasonic-laptop: Simplify calls to acpi_pcc_retrieve_biosdata
  panasonic-laptop: Handle errors properly if they happen
  intel_pmic_gpio: fix off-by-one value range checking
  IBM Real-Time "SMI Free" mode driver -v7
  Add OLPC XO-1 rfkill driver
  Move hdaps driver to platform/x86
  ideapad-laptop: Fix Makefile
  intel_pmic_gpio: swap the bits and mask args for intel_scu_ipc_update_register
  ideapad: Add param: no_bt_rfkill
  ideapad: Change the driver name to ideapad-laptop
  ideapad: rewrite the sw rfkill set
  ideapad: rewrite the hw rfkill notify
  ideapad: use EC command to control camera
  ideapad: use return value of _CFG to tell if device exist or not
  ideapad: make sure we bind on the correct device
  ideapad: check VPC bit before sync rfkill hw status
  ideapad: add ACPI helpers
  dell-laptop: Add debugfs support
  ...

14 years agoMerge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Mon, 25 Oct 2010 15:19:14 +0000 (08:19 -0700)]
Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6

* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  mtd/m25p80: add support to parse the partitions by OF node
  of/irq: of_irq.c needs to include linux/irq.h
  of/mips: Cleanup some include directives/files.
  of/mips: Add device tree support to MIPS
  of/flattree: Eliminate need to provide early_init_dt_scan_chosen_arch
  of/device: Rework to use common platform_device_alloc() for allocating devices
  of/xsysace: Fix OF probing on little-endian systems
  of: use __be32 types for big-endian device tree data
  of/irq: remove references to NO_IRQ in drivers/of/platform.c
  of/promtree: add package-to-path support to pdt
  of/promtree: add of_pdt namespace to pdt code
  of/promtree: no longer call prom_ functions directly; use an ops structure
  of/promtree: make drivers/of/pdt.c no longer sparc-only
  sparc: break out some PROM device-tree building code out into drivers/of
  of/sparc: convert various prom_* functions to use phandle
  sparc: stop exporting openprom.h header
  powerpc, of_serial: Endianness issues setting up the serial ports
  of: MTD: Fix OF probing on little-endian systems
  of: GPIO: Fix OF probing on little-endian systems

14 years agoMIPS: MT: Fix build error iFPU affinity code
Ralf Baechle [Sun, 24 Oct 2010 21:23:50 +0000 (22:23 +0100)]
MIPS: MT: Fix build error iFPU affinity code

Commit b0ae19811375 ("security: remove unused parameter from
security_task_setscheduler()") broke the build of
arch/mips/kernel/mips-mt-fpaff.c.  The function arguments were
unnecessary, not the semicolon ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'ieee1394-removal' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 25 Oct 2010 15:05:29 +0000 (08:05 -0700)]
Merge branch 'ieee1394-removal' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'ieee1394-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  ieee1394: remove the old IEEE 1394 driver stack
  ieee1394: move init_ohci1394_dma to drivers/firewire/

Fix trivial change/delete conflict: drivers/ieee1394/eth1394.c is
getting removed, but was modified by the networking merge.

14 years agoCoda: replace BKL with mutex
Yoshihisa Abe [Mon, 25 Oct 2010 06:03:46 +0000 (02:03 -0400)]
Coda: replace BKL with mutex

Replace the BKL with a mutex to protect the venus_comm structure which
binds the mountpoint with the character device and holds the upcall
queues.

Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoCoda: push BKL regions into coda_upcall()
Yoshihisa Abe [Mon, 25 Oct 2010 06:03:45 +0000 (02:03 -0400)]
Coda: push BKL regions into coda_upcall()

Now that shared inode state is locked using the cii->c_lock, the BKL is
only used to protect the upcall queues used to communicate with the
userspace cache manager. The remaining state is all local and we can
push the lock further down into coda_upcall().

Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoCoda: add spin lock to protect accesses to struct coda_inode_info.
Yoshihisa Abe [Mon, 25 Oct 2010 06:03:44 +0000 (02:03 -0400)]
Coda: add spin lock to protect accesses to struct coda_inode_info.

We mostly need it to protect cached user permissions. The c_flags field
is advisory, reading the wrong value is harmless and in the worst case
we hit a slow path where we have to make an extra upcall to the
userspace cache manager when revalidating a dentry or inode.

Signed-off-by: Yoshihisa Abe <yoshiabe@cs.cmu.edu>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Mon, 25 Oct 2010 14:59:01 +0000 (07:59 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (75 commits)
  Input: wacom - specify Cinitq supported tools
  Input: ab8500-ponkey - fix IRQ freeing in error path
  Input: adp5588-keys - use more obvious i2c_device_id name string
  Input: ad7877 - switch to using threaded IRQ
  Input: ad7877 - use attribute group to control visibility of attributes
  Input: serio - add support for PS2Mult multiplexer protocol
  Input: wacom - properly enable runtime PM
  Input: ad7877 - filter events where pressure is beyond the maximum
  Input: ad7877 - implement EV_KEY:BTN_TOUCH reporting
  Input: ad7877 - implement specified chip select behavior
  Input: hp680_ts_input - use cancel_delayed_work_sync()
  Input: mousedev - correct lockdep annotation
  Input: ads7846 - switch to using threaded IRQ
  Input: serio - support multiple child devices per single parent
  Input: synaptics - simplify pass-through port handling
  Input: add ROHM BU21013 touch panel controller support
  Input: omap4-keypad - wake-up on events & long presses
  Input: omap4-keypad - fix interrupt line configuration
  Input: omap4-keypad - SYSCONFIG register configuration
  Input: omap4-keypad - use platform device helpers
  ...

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
Linus Torvalds [Mon, 25 Oct 2010 14:51:49 +0000 (07:51 -0700)]
Merge git://git./linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (110 commits)
  sh: i2c-sh7760: Replase from ctrl_* to __raw_*
  sh: clkfwk: Shuffle around to match the intc split up.
  sh: clkfwk: modify for_each_frequency end condition
  sh: fix clk_get() error handling
  sh: clkfwk: Fix fault in frequency iterator.
  sh: clkfwk: Add a helper for rate rounding by divisor ranges.
  sh: clkfwk: Abstract rate rounding helper.
  sh: clkfwk: support clock remapping.
  sh: pci: Convert to upper/lower_32_bits() helpers.
  sh: mach-sdk7786: Add support for the FPGA SRAM.
  sh: Provide a generic SRAM pool for tiny memories.
  sh: pci: Support secondary FPGA-driven PCIe clocks on SDK7786.
  sh: pci: Support slot 4 routing on SDK7786.
  sh: Fix up PMB locking.
  sh: mach-sdk7786: Add support for fpga gpios.
  sh: use pr_fmt for clock framework, too.
  sh: remove name and id from struct clk
  sh: free-without-alloc fix for sh_mobile_lcdcfb
  sh: perf: Set up perf_max_events.
  sh: perf: Support SH-X3 hardware counters.
  ...

Fix up trivial conflicts (perf_max_events got removed) in arch/sh/kernel/perf_event.c

14 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Mon, 25 Oct 2010 14:45:10 +0000 (07:45 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  Revert "block: fix accounting bug on cross partition merges"

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Linus Torvalds [Mon, 25 Oct 2010 14:44:27 +0000 (07:44 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/gerg/m68knommu

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (21 commits)
  m68knommu: convert to using tracehook_report_syscall_*
  m68knommu: some boards use fixed phy for FEC ethernet
  m68knommu: support the external GPIO based interrupts of the 5272
  m68knommu: mask of vector bits in exception word properly
  m68knommu: change to new flag variables
  m68knommu: Fix MCFUART_TXFIFOSIZE for m548x.
  m68knommu: add basic mmu-less m548x support
  m68knommu: .gitignore vmlinux.lds
  m68knommu: stop using __do_IRQ
  m68knommu: rename PT_OFF_VECTOR to PT_OFF_FORMATVEC.
  m68knommu: add support for Coldfire 547x/548x interrupt controller
  m68k{nommu}: Remove unused DEFINE's from asm-offsets.c
  m68knommu: whitespace cleanup in 68328/entry.S
  m68knommu: Document supported chips in intc-2.c and intc-simr.c.
  m68knommu: fix strace support for 68328/68360
  m68knommu: fix default starting date
  arch/m68knommu: Removing dead 68328_SERIAL_UART2 config option
  arch/m68knommu: Removing dead RAM_{16,32}_MB config option
  arch/m68knommu: Removing dead M68KFPU_EMU config option
  arch/m68knommu: Removing dead RELOCATE config option
  ...

14 years ago[S390] topology: export cpu topology via proc/sysinfo
Heiko Carstens [Mon, 25 Oct 2010 14:10:54 +0000 (16:10 +0200)]
[S390] topology: export cpu topology via proc/sysinfo

Export the cpu configuration topology via sysinfo. Two new lines are
introduced:

CPU Topology HW:      0 0 0 4 6 4
CPU Topology SW:      0 0 0 0 4 24

The HW line describes the cpu topology nesting levels when the maximum
nesting level is used to get the corresponding SYSIB.
The SW line describes what Linux is actually using. In this case it
supports only two levels (CONFIG_SCHED_BOOK off) and therefore the
hardware folded the two lower levels in the SYSIB response block.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] topology: move topology sysinfo code
Heiko Carstens [Mon, 25 Oct 2010 14:10:53 +0000 (16:10 +0200)]
[S390] topology: move topology sysinfo code

Move the topology sysinfo SYSIB definitions to the proper place in
asm/sysinfo.h where they should be.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] topology: clean up facility detection
Heiko Carstens [Mon, 25 Oct 2010 14:10:52 +0000 (16:10 +0200)]
[S390] topology: clean up facility detection

Move cpu topology facility detection to early setup code where it
should be.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cleanup facility list handling
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:51 +0000 (16:10 +0200)]
[S390] cleanup facility list handling

Store the facility list once at system startup with stfl/stfle and
reuse the result for all facility tests.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] enable ARCH_DMA_ADDR_T_64BIT with 64BIT
FUJITA Tomonori [Mon, 25 Oct 2010 14:10:50 +0000 (16:10 +0200)]
[S390] enable ARCH_DMA_ADDR_T_64BIT with 64BIT

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] dasd: ignore unsolicited interrupts for DIAG
Stefan Haberland [Mon, 25 Oct 2010 14:10:49 +0000 (16:10 +0200)]
[S390] dasd: ignore unsolicited interrupts for DIAG

For the DASD DIAG discipline IO is started through special diagnose
calls. Unsolicited interrupts may contain information about the device
itself. But this information is not needed because the device is not
used directly.
Fix the case that an unimplemented dicipline function may be called
by ignoring unsolicited interrupts for the DIAG disciplin.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] kvm: Enable z196 instruction facilities
Christian Borntraeger [Mon, 25 Oct 2010 14:10:48 +0000 (16:10 +0200)]
[S390] kvm: Enable z196 instruction facilities

Enable PFPO, floating point extension, distinct-operands,
fast-BCR-serialization, high-word, interlocked-access, load/store-
on-condition, and population-count facilities for guests.
(bits 37, 44 and 45).

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] dasd: fix unsolicited interrupt recognition
Stefan Weinhuber [Mon, 25 Oct 2010 14:10:47 +0000 (16:10 +0200)]
[S390] dasd: fix unsolicited interrupt recognition

The dasd interrupt handler needs to distinguish solicited from
unsolicited interrupts, as unsolicited interrupts may require special
handling (e.g. summary unit checks) and solicited interrupts require
proper error recovery for the failed I/O request.
The interrupt handler needs to check several bit fields in the
interrupt response block (irb) to make this distinction.
So far our check of the status control bits has not been specific
enough, which may lead to a failed request getting just retried
instead of the necessary error recovery.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] dasd: fix use after free in dbf
Sebastian Ott [Mon, 25 Oct 2010 14:10:46 +0000 (16:10 +0200)]
[S390] dasd: fix use after free in dbf

Writing to /proc/dasd/statistics while the debug level of the
generic dasd debug entry is set to DBF_DEBUG will lead to an
use after free when accessing the debug entry later.
Since for the format string "%s" in the s390 dbf only a pointer
to the string is stored in the debug feature and the buffer used
here is freed afterwards.

To fix this just remove the debug message.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] kvm: Fix badness at include/asm/mmu_context.h:83
Christian Borntraeger [Mon, 25 Oct 2010 14:10:45 +0000 (16:10 +0200)]
[S390] kvm: Fix badness at include/asm/mmu_context.h:83

commit 050eef364ad700590a605a0749f825cab4834b1e
    [S390] fix tlb flushing vs. concurrent /proc accesses
broke KVM on s390x. On every schedule a
Badness at include/asm/mmu_context.h:83 appears. s390_enable_sie
replaces the mm on the __running__ task, therefore, we have to
increase the attach count of the new mm.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cio: fix I/O cancel function
Peter Oberparleiter [Mon, 25 Oct 2010 14:10:44 +0000 (16:10 +0200)]
[S390] cio: fix I/O cancel function

Function ccw_device_cancel_halt_clear may cause an unexpected kernel
panic if a clear function is currently active at the subchannel for
which it is called. In that case, the iretry counter used to determine
the number of retries is never initialized, leading to an immediate
failure of the function which results in a kernel panic.

Fix this by initializing the iretry counter when the function is
first called. Also replace the kernel panic with a return code: a
single malfunctioning I/O device should not automatically cause a
system-wide kernel panic.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] topology: change default
Heiko Carstens [Mon, 25 Oct 2010 14:10:43 +0000 (16:10 +0200)]
[S390] topology: change default

Switch default value of the kernel parameter 'topology' from off to on.
Various performance measurements have finally shown that there are no
(known) regressions anywhere.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] smp: use correct cpu address in print_cpu_info()
Heiko Carstens [Mon, 25 Oct 2010 14:10:42 +0000 (16:10 +0200)]
[S390] smp: use correct cpu address in print_cpu_info()

Up to now print_cpu_info() uses the cpu address stored in it's local
lowcore to print a message to the console. The cpu address in the
lowcore is (in this case) however not the physical cpu address of the
local cpu. It's the address of the cpu that issued the sigp restart
which started the local cpu.
Fix this by using the store cpu address instruction instead.
It's not that anybody really cares since this is broken since more than
ten years...

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] remove ieee_instruction_pointer from thread_struct
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:41 +0000 (16:10 +0200)]
[S390] remove ieee_instruction_pointer from thread_struct

The ieee_instruction_pointer can not be read from user space anymore
since git commit 613e1def6b52c399a8b72a5e11bc2e57d2546fb8, the ptrace
interface always returns zero. Remove it from the thread_struct. It
is still present in the user_regs_struct for compatability reasons.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cleanup system call parameter setup
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:40 +0000 (16:10 +0200)]
[S390] cleanup system call parameter setup

Do the setup of the stack overflow argument for the sixth system
call parameter right before the branch to the system call function.
That simplifies the system call parameter access code.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] correct alignment of cpuid structure
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:39 +0000 (16:10 +0200)]
[S390] correct alignment of cpuid structure

The store-cpu-id instruction has a minimum alignment of 8. Reflect
that in the definition of struct cpuid.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cleanup lowcore access from external interrupts
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:38 +0000 (16:10 +0200)]
[S390] cleanup lowcore access from external interrupts

Read external interrupts parameters from the lowcore in the first
level interrupt handler in entry[64].S.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cleanup lowcore access from program checks
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:37 +0000 (16:10 +0200)]
[S390] cleanup lowcore access from program checks

Read all required fields for program checks from the lowcore in the
first level interrupt handler in entry[64].S. If the context that
caused the fault was enabled for interrupts we can now re-enable the
irqs in entry[64].S.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] pgtable: move pte_mkhuge() from hugetlb.h to pgtable.h
Heiko Carstens [Mon, 25 Oct 2010 14:10:36 +0000 (16:10 +0200)]
[S390] pgtable: move pte_mkhuge() from hugetlb.h to pgtable.h

All architectures besides s390 have pte_mkhuge() defined in pgtable.h.
So move the function to pgtable.h on s390 as well.
Fixes a compile error introduced with "hugetlb: hugepage migration core"
in linux-next which only happens on s390.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] fix SIGBUS handling
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:35 +0000 (16:10 +0200)]
[S390] fix SIGBUS handling

Raise SIGBUS with a siginfo structure. Deliver BUS_ADRERR as si_code and
the address of the fault in the si_addr field.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cio: notify drivers of channel path events
Sebastian Ott [Mon, 25 Oct 2010 14:10:34 +0000 (16:10 +0200)]
[S390] cio: notify drivers of channel path events

This patch adds a notification mechanism to inform ccw drivers
about changes to channel paths, which occured while the device
is online.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] css: update subchannel description after hibernate
Sebastian Ott [Mon, 25 Oct 2010 14:10:33 +0000 (16:10 +0200)]
[S390] css: update subchannel description after hibernate

Update the subchannel descriptor while resuming from hibernate
in order to obtain current link addresses.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] css: update descriptor after hibernate
Sebastian Ott [Mon, 25 Oct 2010 14:10:32 +0000 (16:10 +0200)]
[S390] css: update descriptor after hibernate

Update the channel path descriptors after hibernation.
This is done unlocked, since we are the only active
task at this time.

Note: chsc_determine_base_channel_path_desc is changed
to use spin_lock_irqsave, since it's called with
interrupts disabled in this case.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cio: update descriptor in chsc_chp_vary
Sebastian Ott [Mon, 25 Oct 2010 14:10:31 +0000 (16:10 +0200)]
[S390] cio: update descriptor in chsc_chp_vary

Update the channel path descriptor at the beginning of to the
vary_on operation.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] chsc: use the global page to determine the chp desriptor
Sebastian Ott [Mon, 25 Oct 2010 14:10:30 +0000 (16:10 +0200)]
[S390] chsc: use the global page to determine the chp desriptor

chsc_determine_channel_path_desc is called by a wrapper
who allocates a response struct. The response data
is then memcpy'ed to this response struct by
chsc_determine_channel_path_desc.

Change chsc_determine_base_channel_path_desc to use the
global chsc_page and deliver it to the function doing
the actual chsc call. The channel path desriptor is
then directly read from the response data.

As a result we get rid of the additional allocation
for the response struct.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] chsc: consolidate memory allocations
Sebastian Ott [Mon, 25 Oct 2010 14:10:29 +0000 (16:10 +0200)]
[S390] chsc: consolidate memory allocations

Most wrappers around the channel subsystem call have their own logic
to allocate memory (with proper alignment) or use preallocated or
static memory. This patch converts most users of the channel
subsystem call to use the same preallocated page (proteced by a
spinlock).

Note: The sei_page which is used in our crw handler to call
"store event information" has to coexist, since
a) in crw context, while accessing the sei_page, sleeping is allowed
   (which will conflict with the spinlock protection of the chsc_page)
b) in crw context, while accessing the sei_page, channel subsystem
   calls are allowed (which itself would require the page).

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] chsc: initialization fixes
Sebastian Ott [Mon, 25 Oct 2010 14:10:28 +0000 (16:10 +0200)]
[S390] chsc: initialization fixes

This patch fixes:
 * kfree vs. free_page usage
 * structure definition for determine_css_characteristics
 * naming convention for the chsc init function
 * deregistration of crw handlers in the cleanup path

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cio: add lock to struct channel_path
Sebastian Ott [Mon, 25 Oct 2010 14:10:27 +0000 (16:10 +0200)]
[S390] cio: add lock to struct channel_path

Serialize access to members of struct channel_path with a mutex.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cio: fix memleak in resume path
Sebastian Ott [Mon, 25 Oct 2010 14:10:26 +0000 (16:10 +0200)]
[S390] cio: fix memleak in resume path

If a ccwdevice is lost during hibernation and a different
ccwdevice is attached to the same subchannel, we will
deregister the old ccw device and register the new one.

Since deregistration is not allowed in this context, we
handle this action later. However, some parts of the
registration process for the new device were started anyway,
so that the old device structure is no longer accessible.

Fix this by deferring both actions to the afterwards
scheduled subchannel event.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cio: remove custom implementation of hex_to_bin()
Andy Shevchenko [Mon, 25 Oct 2010 14:10:25 +0000 (16:10 +0200)]
[S390] cio: remove custom implementation of hex_to_bin()

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] dasd fix dump_sense_dbf
Stefan Haberland [Mon, 25 Oct 2010 14:10:24 +0000 (16:10 +0200)]
[S390] dasd fix dump_sense_dbf

The dasd_eckd_dump_sense_dbf function uses a macro for s390 debug
feature that can handle up to 8 parameters (for the DASD device
driver).
Fix the function to use only the maximum number of parameters.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] css: fix sparse warning
Sebastian Ott [Mon, 25 Oct 2010 14:10:23 +0000 (16:10 +0200)]
[S390] css: fix sparse warning

fix this sparse warning:

drivers/s390/cio/css.c:580:6: warning: symbol 'css_schedule_eval_all_unreg'
was not declared. Should it be static?

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] hvc_iucv: do not call iucv_unregister if iucv_register failed
Hendrik Brueckner [Mon, 25 Oct 2010 14:10:22 +0000 (16:10 +0200)]
[S390] hvc_iucv: do not call iucv_unregister if iucv_register failed

If the iucv_register() functions fails, the error recovery calls
iucv_unregister() which might cause the following stack backtrace:

(<0000000000100ab2> show_trace+0xee/0x144)
<00000000004f1842> panic+0xb6/0x248
<00000000001010a6> die+0x15a/0x16c
<000000000011d936> do_no_context+0xa6/0xe4
<00000000004f84dc> do_protection_exception+0x2e8/0x3a4
<0000000000113afc> pgm_exit+0x0/0x14
<00000000004e786e> iucv_unregister+0x5a/0x17c
(<00000000004e785e> iucv_unregister+0x4a/0x17c)
<000000000076de74> hvc_iucv_init+0x228/0x5dc
<00000000001000c2> do_one_initcall+0x3e/0x19c
<00000000007524a2> kernel_init+0x28e/0x404
<0000000000105dd6> kernel_thread_starter+0x6/0xc
<0000000000105dd0> kernel_thread_starter+0x0/0xc

Remove the call to iucv_unregister() and remove the goto label
as unregistering is the last step in the hvc_iucv initialization.
If iucv_register() fails, simply clean up hvc terminals and free
resources.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cmm: fix crash on case conversion
Heiko Carstens [Mon, 25 Oct 2010 14:10:21 +0000 (16:10 +0200)]
[S390] cmm: fix crash on case conversion

When the cmm module is compiled into the kernel it will crash when
writing to the R/O data section.
Reason is the lower to upper case conversion of the "sender" module
parameter which ignored the fact that the pointer is preinitialized.

Introduced with 41b42876 "cmm, smsgiucv_app: convert sender to
uppercase"

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] drivers/s390/char: Use static const char arrays
Joe Perches [Mon, 25 Oct 2010 14:10:20 +0000 (16:10 +0200)]
[S390] drivers/s390/char: Use static const char arrays

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] switch_to: get rid of prev == next check
Heiko Carstens [Mon, 25 Oct 2010 14:10:19 +0000 (16:10 +0200)]
[S390] switch_to: get rid of prev == next check

schedule() makes sure that prev != next before calling switch_to().
Therefore remove the redundant check.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] switch_to: dont restore/save access & fpu regs for kernel threads
Heiko Carstens [Mon, 25 Oct 2010 14:10:18 +0000 (16:10 +0200)]
[S390] switch_to: dont restore/save access & fpu regs for kernel threads

If the previous task was a kernel thread there is no need to save the
contents of the fpu and access registers since they aren't used in
kernel mode.
For the same reason it is not necessary to restore these registers if
the next task is a kernel thread.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] Add config option for z196 code generation.
Heiko Carstens [Mon, 25 Oct 2010 14:10:17 +0000 (16:10 +0200)]
[S390] Add config option for z196 code generation.

Add a kernel config option for the IBM zEnterprise 196. This will
produce faster code on newer compilers using the -march=z196 option.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] sysinfo: display capacity adjustment indicator
Heiko Carstens [Mon, 25 Oct 2010 14:10:16 +0000 (16:10 +0200)]
[S390] sysinfo: display capacity adjustment indicator

Display machine capacity adjustment indicator and capacity
change reason if available in /proc/sysinfo.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] add z196 instructions to kernel disassembler
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:15 +0000 (16:10 +0200)]
[S390] add z196 instructions to kernel disassembler

Add the new instructions introduced with z196 to the kernel disassembler.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] add support for nonquiescing sske
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:14 +0000 (16:10 +0200)]
[S390] add support for nonquiescing sske

Improve performance of the sske operation by using the nonquiescing
variant if the affected page has no mappings established. On machines
with no support for the new sske variant the mask bit will be ignored.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] store indication fault optimization
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:13 +0000 (16:10 +0200)]
[S390] store indication fault optimization

Use the store indication bit in the translation exception code on
page faults to avoid the protection faults that immediatly follow
the page fault if the access has been a write.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] cpu hotplug/idle: move cpu_die call to enabled context
Heiko Carstens [Mon, 25 Oct 2010 14:10:12 +0000 (16:10 +0200)]
[S390] cpu hotplug/idle: move cpu_die call to enabled context

There is no difference if cpu_die is called from enabled or disabled
context. Except that the fast_gup code might be called via
cpu_die -> idle_task_exit -> __mm_drop -> crst_table_free. Which in
turn grabs and releases a spinlock using the _bh ops, which is not
allowed in irq disabled context, since spin_unlock_bh will
unconditionally enable interrupts again.
To get rid of the warning emitted by the softirq code just move the
code to enabled context.

In this case this doesn't fix a bug, we just get rid of a warning.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] lockless get_user_pages_fast()
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:11 +0000 (16:10 +0200)]
[S390] lockless get_user_pages_fast()

Implement get_user_pages_fast without locking in the fastpath on s390.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] set ARCH_HAS_SG_CHAIN for s390
Christof Schmitt [Mon, 25 Oct 2010 14:10:10 +0000 (16:10 +0200)]
[S390] set ARCH_HAS_SG_CHAIN for s390

Set ARCH_HAS_SG_CHAIN for scatter lists on s390. Without this flag the
SCSI code limits the maximum number of segments, so set it to make
proper use of the FCP channel hardware.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] standardize Kbuild rules
Heiko Carstens [Mon, 25 Oct 2010 14:10:09 +0000 (16:10 +0200)]
[S390] standardize Kbuild rules

Introducing this Kbuild file allow us to:

make arch/s390/

And thus building all the core part of s390.
Same as on other architectures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] dasd: let recovery cqr inherit flags from failed cqr
Stefan Weinhuber [Mon, 25 Oct 2010 14:10:08 +0000 (16:10 +0200)]
[S390] dasd: let recovery cqr inherit flags from failed cqr

The usual way to recover a failed DASD ECKD request (cqr) is to create
a new request with an appropriate recovery CCW program.  Certain
features, e.g. failfast, can be enabled per request and are stored in
the requests flags. These flags have to be copied from the failed to
the recovery request, to let the recovery request use the same
features as the original one.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] zero page cache synonyms
Martin Schwidefsky [Mon, 25 Oct 2010 14:10:07 +0000 (16:10 +0200)]
[S390] zero page cache synonyms

If the zero page is mapped to virtual user space addresses that differ
only in bit 2^12 or 2^13 we get L1 cache synonyms which can affect
performance. Follow the mips model and use multiple zero pages to avoid
the synonyms.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years agouwb: Orphan the UWB and WUSB subsystems
David Vrabel [Mon, 25 Oct 2010 13:05:36 +0000 (14:05 +0100)]
uwb: Orphan the UWB and WUSB subsystems

I'm no longer in a position to be the maintainer for the Ultra-Wide
Band (UWB) and Ceritified Wireless USB (WUSB) subsystems and no one else
has volunteered to take over.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
14 years agouwb: Remove the WLP subsystem and drivers
David Vrabel [Mon, 25 Oct 2010 12:57:32 +0000 (13:57 +0100)]
uwb: Remove the WLP subsystem and drivers

The only Wimedia LLC Protocol (WLP) hardware was an Intel i1480 chip
with a beta release of firmware that was never commercially available as
a product.  This hardware and firmware is no longer available as Intel
sold their UWB/WLP IP.  I also see little prospect of other WLP
capable hardware ever being available.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
14 years agoMerge branch 'topic/hda' into for-linus
Takashi Iwai [Mon, 25 Oct 2010 08:40:05 +0000 (10:40 +0200)]
Merge branch 'topic/hda' into for-linus

14 years agoALSA: hda - Disable sticky PCM stream assignment for AD codecs
Takashi Iwai [Mon, 25 Oct 2010 08:37:11 +0000 (10:37 +0200)]
ALSA: hda - Disable sticky PCM stream assignment for AD codecs

The sticky PCM stream assignment introduced in 2.6.36 kernel seems
causing problems on AD codecs.  At some time later, the streaming no
longer works by unknown reason.  A simple workaround is to disable
sticky-assignment for these codecs.

Tested-by: Vasily Khoruzhick <anarsoul@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
14 years agoMerge branch 'topic/asoc' into for-linus
Takashi Iwai [Mon, 25 Oct 2010 08:00:30 +0000 (10:00 +0200)]
Merge branch 'topic/asoc' into for-linus

Conflicts:
arch/powerpc/platforms/85xx/p1022_ds.c

14 years agoMerge branch 'topic/misc' into for-linus
Takashi Iwai [Mon, 25 Oct 2010 07:56:32 +0000 (09:56 +0200)]
Merge branch 'topic/misc' into for-linus

14 years agoMerge branch 'next' into for-linus
Dmitry Torokhov [Mon, 25 Oct 2010 05:11:17 +0000 (22:11 -0700)]
Merge branch 'next' into for-linus

14 years agoInput: wacom - specify Cinitq supported tools
Ping Cheng [Mon, 25 Oct 2010 04:53:40 +0000 (21:53 -0700)]
Input: wacom - specify Cinitq supported tools

Cintiq, being a display tablet, doesn't have mouse and associated BTN_s.
Make sure we do not specify them when registering Cintiq's input device
so that userland can retrieve the exact tool set the device supports.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
14 years agoInput: ab8500-ponkey - fix IRQ freeing in error path
Nicolas Kaiser [Mon, 25 Oct 2010 04:48:11 +0000 (21:48 -0700)]
Input: ab8500-ponkey - fix IRQ freeing in error path

Looks like an obvious typo to me.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
14 years agosh: i2c-sh7760: Replase from ctrl_* to __raw_*
Nobuhiro Iwamatsu [Fri, 22 Oct 2010 22:07:00 +0000 (07:07 +0900)]
sh: i2c-sh7760: Replase from ctrl_* to __raw_*

ctrl_* is deprecated. We should to use __raw_*.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agoMerge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Linus Torvalds [Sun, 24 Oct 2010 20:41:39 +0000 (13:41 -0700)]
Merge branch 'for-next' of git://git./linux/kernel/git/jikos/trivial

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
  Update broken web addresses in arch directory.
  Update broken web addresses in the kernel.
  Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget
  Revert "Fix typo: configuation => configuration" partially
  ida: document IDA_BITMAP_LONGS calculation
  ext2: fix a typo on comment in ext2/inode.c
  drivers/scsi: Remove unnecessary casts of private_data
  drivers/s390: Remove unnecessary casts of private_data
  net/sunrpc/rpc_pipe.c: Remove unnecessary casts of private_data
  drivers/infiniband: Remove unnecessary casts of private_data
  drivers/gpu/drm: Remove unnecessary casts of private_data
  kernel/pm_qos_params.c: Remove unnecessary casts of private_data
  fs/ecryptfs: Remove unnecessary casts of private_data
  fs/seq_file.c: Remove unnecessary casts of private_data
  arm: uengine.c: remove C99 comments
  arm: scoop.c: remove C99 comments
  Fix typo configue => configure in comments
  Fix typo: configuation => configuration
  Fix typo interrest[ing|ed] => interest[ing|ed]
  Fix various typos of valid in comments
  ...

Fix up trivial conflicts in:
drivers/char/ipmi/ipmi_si_intf.c
drivers/usb/gadget/rndis.c
net/irda/irnet/irnet_ppp.c

14 years agoMerge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/edac
Linus Torvalds [Sun, 24 Oct 2010 20:06:57 +0000 (13:06 -0700)]
Merge branch 'devel' of git://git./linux/kernel/git/mchehab/edac

* 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/edac: (25 commits)
  i7300_edac: Properly initialize per-csrow memory size
  V4L/DVB: i7300_edac: better initialize page counts
  MAINTAINERS: Add maintainer for i7300-edac driver
  i7300-edac: CodingStyle cleanup
  i7300_edac: Improve comments
  i7300_edac: Cleanup: reorganize the file contents
  i7300_edac: Properly detect channel on CE errors
  i7300_edac: enrich FBD error info for corrected errors
  i7300_edac: enrich FBD error info for fatal errors
  i7300_edac: pre-allocate a buffer used to prepare err messages
  i7300_edac: Fix MTR x4/x8 detection logic
  i7300_edac: Make the debug messages coherent with the others
  i7300_edac: Cleanup: remove get_error_info logic
  i7300_edac: Add a code to cleanup error registers
  i7300_edac: Add support for reporting FBD errors
  i7300_edac: Properly detect the type of error correction
  i7300_edac: Detect if the device is on single mode
  i7300_edac: Adds detection for enhanced scrub mode on x8
  i7300_edac: Clear the error bit after reading
  i7300_edac: Add error detection code for global errors
  ...

14 years agoRevert "block: fix accounting bug on cross partition merges"
Jens Axboe [Sun, 24 Oct 2010 20:06:02 +0000 (22:06 +0200)]
Revert "block: fix accounting bug on cross partition merges"

This reverts commit 7681bfeeccff5efa9eb29bf09249a3c400b15327.

Conflicts:

include/linux/genhd.h

It has numerous issues with the cleanup path and non-elevator
devices. Revert it for now so we can come up with a clean
version without rushing things.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Sun, 24 Oct 2010 19:47:55 +0000 (12:47 -0700)]
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: (27 commits)
  SLUB: Fix memory hotplug with !NUMA
  slub: Move functions to reduce #ifdefs
  slub: Enable sysfs support for !CONFIG_SLUB_DEBUG
  SLUB: Optimize slab_free() debug check
  slub: Move NUMA-related functions under CONFIG_NUMA
  slub: Add lock release annotation
  slub: Fix signedness warnings
  slub: extract common code to remove objects from partial list without locking
  SLUB: Pass active and inactive redzone flags instead of boolean to debug functions
  slub: reduce differences between SMP and NUMA
  Revert "Slub: UP bandaid"
  percpu: clear memory allocated with the km allocator
  percpu: use percpu allocator on UP too
  percpu: reduce PCPU_MIN_UNIT_SIZE to 32k
  vmalloc: pcpu_get/free_vm_areas() aren't needed on UP
  SLUB: Fix merged slab cache names
  Slub: UP bandaid
  slub: fix SLUB_RESILIENCY_TEST for dynamic kmalloc caches
  slub: Fix up missing kmalloc_cache -> kmem_cache_node case for memoryhotplug
  slub: Add dummy functions for the !SLUB_DEBUG case
  ...

14 years agoMerge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sun, 24 Oct 2010 19:47:25 +0000 (12:47 -0700)]
Merge branch 'kvm-updates/2.6.37' of git://git./virt/kvm/kvm

* 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (321 commits)
  KVM: Drop CONFIG_DMAR dependency around kvm_iommu_map_pages
  KVM: Fix signature of kvm_iommu_map_pages stub
  KVM: MCE: Send SRAR SIGBUS directly
  KVM: MCE: Add MCG_SER_P into KVM_MCE_CAP_SUPPORTED
  KVM: fix typo in copyright notice
  KVM: Disable interrupts around get_kernel_ns()
  KVM: MMU: Avoid sign extension in mmu_alloc_direct_roots() pae root address
  KVM: MMU: move access code parsing to FNAME(walk_addr) function
  KVM: MMU: audit: check whether have unsync sps after root sync
  KVM: MMU: audit: introduce audit_printk to cleanup audit code
  KVM: MMU: audit: unregister audit tracepoints before module unloaded
  KVM: MMU: audit: fix vcpu's spte walking
  KVM: MMU: set access bit for direct mapping
  KVM: MMU: cleanup for error mask set while walk guest page table
  KVM: MMU: update 'root_hpa' out of loop in PAE shadow path
  KVM: x86 emulator: Eliminate compilation warning in x86_decode_insn()
  KVM: x86: Fix constant type in kvm_get_time_scale
  KVM: VMX: Add AX to list of registers clobbered by guest switch
  KVM guest: Move a printk that's using the clock before it's ready
  KVM: x86: TSC catchup mode
  ...

14 years agoMerge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
Linus Torvalds [Sun, 24 Oct 2010 19:46:24 +0000 (12:46 -0700)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-viapro: Don't log nacks
  i2c/pca954x: Remove __devinit and __devexit from probe and remove functions
  MAINTAINERS: Add maintainer for PCA9541 I2C bus master selector driver
  i2c/mux: Driver for PCA9541 I2C Master Selector
  i2c: Optimize function i2c_detect()
  i2c: Discard warning message on device instantiation from user-space
  i2c-amd8111: Add proper error handling
  i2c: Change to new flag variable
  i2c: Remove unneeded inclusions of <linux/i2c-id.h>
  i2c: Let i2c_parent_is_i2c_adapter return the parent adapter
  i2c: Simplify i2c_parent_is_i2c_adapter
  i2c-pca-platform: Change device name of request_irq
  i2c: Fix Kconfig dependencies