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Geert Uytterhoeven [Wed, 20 Aug 2014 13:18:44 +0000 (15:18 +0200)]
dmaengine: Update documentation for inline wrapper
Commit
16052827d98fbc13c31ebad560af4bd53e2b4dd5 ("dmaengine/dma_slave:
introduce inline wrappers") introduced some wrappers, but there is still
a reference to the old function.
Update the documentation to use the wrapper, and add a missing "()" to a
function name.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Michal Simek [Wed, 13 Aug 2014 11:57:42 +0000 (13:57 +0200)]
dma: xilinx: Remove .owner field for driver
There is no need to init .owner field.
Based on the patch from Peter Griffin <peter.griffin@linaro.org>
"mmc: remove .owner field for drivers using module_platform_driver"
This patch removes the superflous .owner field for drivers which
use the module_platform_driver API, as this is overriden in
platform_driver_register anyway."
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Levente Kurusa <lkurusa@redhat.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Srikanth Thokala [Mon, 28 Jul 2014 12:17:48 +0000 (17:47 +0530)]
dma: Add Xilinx AXI DMA DT Binding Documentation
Device-tree binding documentation of Xilinx DMA Engine
Signed-off-by: Srikanth Thokala <sthokal@xilinx.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vignesh Raman [Tue, 5 Aug 2014 13:09:42 +0000 (18:39 +0530)]
dma: imx-sdma: Adding tasklet_kill() in sdma_remove function.
Several dma drivers calls tasklet_kill() in remove function. This is done
because all running tasklets should be killed on remove. This is missing
in imx sdma driver, so adding tasklet_kill() in sdma_remove function.
Signed-off-by: Vignesh Raman <Vignesh_Raman@mentor.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Vignesh Raman [Tue, 5 Aug 2014 13:09:41 +0000 (18:39 +0530)]
dma: imx-sdma: use module_platform_driver for SDMA driver
Currently there is no module_exit declared in SDMA driver, so that once
sdma module is inserted, it's shown with permanent attribute by lsmod,
and it can't be removed.
Use module_platform_driver to register/unregister SDMA driver and modify
SDMA's remove operation, to make SDMA driver possible to be removed.
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Linus Torvalds [Sat, 16 Aug 2014 16:40:26 +0000 (10:40 -0600)]
Linux 3.17-rc1
Linus Torvalds [Sat, 16 Aug 2014 15:32:27 +0000 (09:32 -0600)]
Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86
Pull x86 platform driver updates from Matthew Garrett:
"A moderate number of changes, but nothing awfully significant.
A lot of const cleanups, some reworking and additions to the rfkill
quirks in the asus driver, a new driver for generating falling laptop
events on Toshibas and some misc fixes.
Maybe vendors have stopped inventing things"
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (41 commits)
platform/x86: Enable build support for toshiba_haps
Documentation: Add file about toshiba_haps module
platform/x86: Toshiba HDD Active Protection Sensor
asus-nb-wmi: Add wapf4 quirk for the U32U
alienware-wmi: make hdmi_mux enabled on case-by-case basis
ideapad-laptop: Constify DMI table and other r/o variables
asus-nb-wmi.c: Rename x401u quirk to wapf4
compal-laptop: correct invalid hwmon name
toshiba_acpi: Add Qosmio X75-A to the alt keymap dmi list
toshiba_acpi: Add extra check to backlight code
Fix log message about future removal of interface
ideapad-laptop: Disable touchpad interface on Yoga models
asus-nb-wmi: Add wapf4 quirk for the X550CC
intel_ips: Make ips_mcp_limits variables static
thinkpad_acpi: Mark volume_alsa_control_{vol,mute} as __initdata
fujitsu-laptop: Mark fujitsu_dmi_table[] DMI table as __initconst
hp-wmi: Add missing __init annotations to initialization code
hp_accel: Constify ACPI and DMI tables
fujitsu-tablet: Mark DMI callbacks as __init code
dell-laptop: Mark dell_quirks[] DMI table as __initconst
...
Linus Torvalds [Sat, 16 Aug 2014 15:25:34 +0000 (09:25 -0600)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux
Pull idle update from Len Brown:
"Two Intel-platform-specific updates to intel_idle, and a cosmetic
tweak to the turbostat utility"
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: tweak whitespace in output format
intel_idle: Broadwell support
intel_idle: Disable Baytrail Core and Module C6 auto-demotion
Linus Torvalds [Sat, 16 Aug 2014 15:24:41 +0000 (09:24 -0600)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/rusty/linux
Pull module fix from Rusty Russell:
"Nasty potential bug if someone uses a known module param with an
invalid value (we don't fail unknown module params any more, just
warn)"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
module: Clean up ro/nx after early module load failures
Linus Torvalds [Sat, 16 Aug 2014 15:23:15 +0000 (09:23 -0600)]
Merge branch 'rng-queue' of git://git./linux/kernel/git/amit/virtio
Pull virtio-rng update from Amit Shah:
"Add derating factor for use by hwrng core
Sending directly to you with the commit log changes Ted Ts'o pointed
out. Not sure if Rusty's back after his travel, but this already has
his s-o-b"
* 'rng-queue' of git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio:
virtio: rng: add derating factor for use by hwrng core
Linus Torvalds [Sat, 16 Aug 2014 15:06:55 +0000 (09:06 -0600)]
Merge branch 'for-linus2' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs updates from Chris Mason:
"These are all fixes I'd like to get out to a broader audience.
The biggest of the bunch is Mark's quota fix, which is also in the
SUSE kernel, and makes our subvolume quotas dramatically more
accurate.
I've been running xfstests with these against your current git
overnight, but I'm queueing up longer tests as well"
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: disable strict file flushes for renames and truncates
Btrfs: fix csum tree corruption, duplicate and outdated checksums
Btrfs: Fix memory corruption by ulist_add_merge() on 32bit arch
Btrfs: fix compressed write corruption on enospc
btrfs: correctly handle return from ulist_add
btrfs: qgroup: account shared subtrees during snapshot delete
Btrfs: read lock extent buffer while walking backrefs
Btrfs: __btrfs_mod_ref should always use no_quota
btrfs: adjust statfs calculations according to raid profiles
Linus Torvalds [Sat, 16 Aug 2014 14:58:47 +0000 (08:58 -0600)]
Merge tag 'locks-v3.17-2' of git://git.samba.org/jlayton/linux
Pull file locking bugfixes from Jeff Layton:
"Most of these patches are to fix a long-standing regression that crept
in when the BKL was removed from the file-locking code. The code was
converted to use a conventional spinlock, but some fl_release_private
ops can block and you can end up sleeping inside the lock.
There's also a patch to make /proc/locks show delegations as 'DELEG'"
* tag 'locks-v3.17-2' of git://git.samba.org/jlayton/linux:
locks: update Locking documentation to clarify fl_release_private behavior
locks: move locks_free_lock calls in do_fcntl_add_lease outside spinlock
locks: defer freeing locks in locks_delete_lock until after i_lock has been dropped
locks: don't reuse file_lock in __posix_lock_file
locks: don't call locks_release_private from locks_copy_lock
locks: show delegations as "DELEG" in /proc/locks
Linus Torvalds [Sat, 16 Aug 2014 14:56:27 +0000 (08:56 -0600)]
Merge git://git.kvack.org/~bcrl/aio-next
Pull aio updates from Ben LaHaise.
* git://git.kvack.org/~bcrl/aio-next:
aio: use iovec array rather than the single one
aio: fix some comments
aio: use the macro rather than the inline magic number
aio: remove the needless registration of ring file's private_data
aio: remove no longer needed preempt_disable()
aio: kill the misleading rcu read locks in ioctx_add_table() and kill_ioctx()
aio: change exit_aio() to load mm->ioctx_table once and avoid rcu_read_lock()
Azael Avalos [Thu, 14 Aug 2014 15:55:40 +0000 (09:55 -0600)]
platform/x86: Enable build support for toshiba_haps
Makefile and Kconfig build support patch for the newly introduced
kernel module toshiba_haps.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Azael Avalos [Thu, 14 Aug 2014 15:55:39 +0000 (09:55 -0600)]
Documentation: Add file about toshiba_haps module
This patch provides information about the Toshiba HDD
Active Protection Sensor driver module toshiba_haps.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Azael Avalos [Thu, 14 Aug 2014 15:55:38 +0000 (09:55 -0600)]
platform/x86: Toshiba HDD Active Protection Sensor
This driver adds support for the built-in accelereometer found
on recent Toshiba laptops with HID TOS620A.
This driver receives ACPI notify events 0x80 when the sensor
detects a sudden move or a harsh vibration, as well as an
ACPI notify event 0x81 whenever the movement or vibration has
been stabilized.
Also provides sysfs entries to get/set the desired protection
level and reseting the HDD protection interface.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Tue, 29 Jul 2014 09:59:57 +0000 (11:59 +0200)]
asus-nb-wmi: Add wapf4 quirk for the U32U
As reported here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
1173681
the U32U needs wapf=4 too.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mario Limonciello [Thu, 24 Jul 2014 04:19:23 +0000 (23:19 -0500)]
alienware-wmi: make hdmi_mux enabled on case-by-case basis
Not all HW supporting WMAX method will support the HDMI mux feature.
Explicitly quirk the HW that does support it.
Signed-off-by: Mario Limonciello <mario_limonciello@dell.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:15 +0000 (19:43 +0200)]
ideapad-laptop: Constify DMI table and other r/o variables
Constify the rfkill_blacklist[] DMI table, the ideapad_rfk_data[] table
and the ideapad_attribute_group attribute group. There's no need to have
them writeable during runtime.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Mon, 14 Jul 2014 07:14:34 +0000 (09:14 +0200)]
asus-nb-wmi.c: Rename x401u quirk to wapf4
The actual x401u does not use the so named x401u quirk but the x55u quirk.
All that the x401u quirk does it setting wapf to 4, so rename it to wapf4 to
stop the confusion.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Roald Frederickx [Wed, 13 Aug 2014 20:40:14 +0000 (13:40 -0700)]
compal-laptop: correct invalid hwmon name
Change the name of the hwmon interface from "compal-laptop" to "compal".
A dash is an invalid character for a hwmon name and caused the call to
hwmon_device_register_with_groups() to fail.
Signed-off-by: Roald Frederickx <roald.frederickx@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Azael Avalos [Mon, 4 Aug 2014 15:21:02 +0000 (09:21 -0600)]
toshiba_acpi: Add Qosmio X75-A to the alt keymap dmi list
The Toshiba Qosmio X75-A series models also come with
the new keymap layout.
This patch adds this model to the alt_keymap_dmi list,
along with an extra key found on these models.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Azael Avalos [Mon, 4 Aug 2014 15:21:01 +0000 (09:21 -0600)]
toshiba_acpi: Add extra check to backlight code
Some Toshiba models (most notably Qosmios) come with an
incomplete backlight method where the AML code doesn't
check for write or read commands and always returns
HCI_SUCCESS and the actual brightness (and in some
cases the max brightness), thus allowing the backlight
interface to be registered without write support.
This patch changes the set_lcd_brightness function,
checking the returned values for values greater than
zero to avoid registering a broken backlight interface.
Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Martin Kepplinger [Sat, 26 Jul 2014 15:46:06 +0000 (17:46 +0200)]
Fix log message about future removal of interface
If this is going away, it won't be in 2012.
Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Fri, 18 Jul 2014 10:21:47 +0000 (12:21 +0200)]
ideapad-laptop: Disable touchpad interface on Yoga models
Yoga models don't offer touchpad ctrl through the ideapad interface, causing
ideapad_sync_touchpad_state to send wrong touchpad enable/disable events.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Fri, 18 Jul 2014 10:15:09 +0000 (12:15 +0200)]
asus-nb-wmi: Add wapf4 quirk for the X550CC
As reported here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
1173681
the X550CC needs wapf=4 too.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:16 +0000 (19:43 +0200)]
intel_ips: Make ips_mcp_limits variables static
These variables don't need to be visible outside of this compilation
unit, make them static.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:17 +0000 (19:43 +0200)]
thinkpad_acpi: Mark volume_alsa_control_{vol,mute} as __initdata
Mark volume_alsa_control_vol and volume_alsa_control_mute as __initdata,
as snd_ctl_new1() will copy the relevant parts, so there is no need to
keep the master copies around after initialization.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Henrique de Moraes Holschuh <ibm-acpi@hmh.eng.br>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:11 +0000 (19:43 +0200)]
fujitsu-laptop: Mark fujitsu_dmi_table[] DMI table as __initconst
The DMI table is only ever used during initialization. Mark it as
__initconst so its memory can be released afterwards -- roughly 1.5 kB.
In turn, the callback functions can be marked with __init, too.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:13 +0000 (19:43 +0200)]
hp-wmi: Add missing __init annotations to initialization code
These functions are only called from other initialization routines, so
can be marked __init, too.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:14 +0000 (19:43 +0200)]
hp_accel: Constify ACPI and DMI tables
Constify the lis3lv02d_device_ids[] ACPI and the lis3lv02d_dmi_ids[] DMI
tables. There's no need to have them writeable during runtime.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:12 +0000 (19:43 +0200)]
fujitsu-tablet: Mark DMI callbacks as __init code
The DMI table is already marked as __initconst, so can be the callback
functions as they're only used in that context.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Robert Gerlach <khnz@gmx.de>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:09 +0000 (19:43 +0200)]
dell-laptop: Mark dell_quirks[] DMI table as __initconst
The dell_quirks[] DMI table is only ever used during initialization.
Mark it as __initconst so its memory can be released afterwards --
roughly 5.7 kB. In turn, the callback function can be marked with
__init, too.
Also the touchpad_led_init() function can be marked __init as it's only
referenced from dell_init() -- an __init function.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:10 +0000 (19:43 +0200)]
eeepc-wmi: Constify asus_quirks[] DMI table
Constify the asus_quirks[] DMI table. There's no need to have it
writeable during runtime.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:04 +0000 (19:43 +0200)]
acer-wmi: Mark init data and code as such
Quite a lot of code and data of acer-wmi.c is only ever used during
initialization. Mark those accordingly -- and constify, where
appropriate -- so the memory can be released afterwards.
All in all those changes move ~10 kB of code and data to the .init
sections, marking them for release after initialization has finished.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:08 +0000 (19:43 +0200)]
asus-nb-wmi: Constify asus_quirks[] DMI table
Constify the asus_quirks[] DMI table. There's no need to have it
writeable during runtime.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:07 +0000 (19:43 +0200)]
alienware-wmi: Mark DMI table as __initconst
The DMI table is only ever used during initialization. Mark it as
__initconst so its memory can be released appropriately. In turn, the
callback function can be marked with __init, too.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:06 +0000 (19:43 +0200)]
acer-wmi: Hide acer_{suspend,resume} for !CONFIG_PM_SLEEP
Encapsulate acer_suspend() and acer_resume with #ifdef CONFIG_PM_SLEEP
to get rid of the following warnings:
../acer-wmi.c:2046:12: warning: ‘acer_suspend’ defined but not used [-Wunused-function]
../acer-wmi.c:2068:12: warning: ‘acer_resume’ defined but not used [-Wunused-function]
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:05 +0000 (19:43 +0200)]
acer-wmi: Mark acer_wmi_keymap[] as __initconst
sparse_keymap_setup() will make a copy of the keymap, so we can release
the master copy after initialization.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Mathias Krause [Wed, 16 Jul 2014 17:43:03 +0000 (19:43 +0200)]
MAINTAINERS: Update git URL for x86 platform drivers
The repo on kernel.org is no longer available but has a replacement at
cavan.codon.org.uk.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Himangi Saraogi [Tue, 15 Jul 2014 17:19:11 +0000 (22:49 +0530)]
WMI: Remove unnecessary null test
This patch removes the null test on block. block is initialized at the
beginning of the function to &wblock->gblock. Since wblock is
dereferenced prior to the null test, wblock must be a valid pointer,
and &wblock->gblock cannot be null.
The following Coccinelle script is used for detecting the change:
@r@
expression e,f;
identifier g,y;
statement S1,S2;
@@
*e = &f->g
<+...
f->y
...+>
*if (e != NULL || ...)
S1 else S2
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Andrey Utkin [Mon, 14 Jul 2014 22:56:21 +0000 (01:56 +0300)]
drivers/platform/x86/thinkpad_acpi.c: don't test unsigned int for negativity
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80231
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Mon, 14 Jul 2014 07:14:35 +0000 (09:14 +0200)]
asus-nb-wmi: Add wapf4 quirk for the X550CL
As reported here: https://bugs.launchpad.net/bugs/
1277959
the X550CL needs wapf=4 too.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
AceLan Kao [Wed, 9 Jul 2014 08:18:19 +0000 (16:18 +0800)]
asus-nb-wmi: Add ASUSTeK COMPUTER INC. X200CA
BIOS won't light on the wifi-led after S3, so asus-wmi driver needs to
control the wifi and wifi-led status.
But, it'll lead to bt status error if asus-wmi driver controls bt as well.
So, for X200CA, asus-wmi driver controls wifi status only and have to set
wapf to 1.
Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
AceLan Kao [Wed, 9 Jul 2014 08:18:18 +0000 (16:18 +0800)]
asus-wmi: control wlan-led if wapf > 0
Wifi will be controlled by asus-wmi driver when wapf > 0
So, controls the wifi-led when wapf > 0
Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Tue, 8 Jul 2014 08:47:22 +0000 (10:47 +0200)]
asus-wmi: backlight_init: Stop treating -ENODEV as if its not an error
When bl_power support got added to asus-wmi, the error handling for it was
written to ignore -ENODEV, to avoid not registering a backlight interface for
models which have no bl_power control, but do have brightness control.
At the same time the error handling for brightness_max was modified to do the
same, this is wrong, when there is no brightness_max asus-wmi should not
register a backlight interface.
Note the caller of asus_wmi_backlight_init already special cases -ENODEV,
and will not cause the wmi driver regristration to fail because of a
-ENODEV return from asus_wmi_backlight_init.
https://bugzilla.redhat.com/show_bug.cgi?id=
1097436
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Tue, 8 Jul 2014 08:47:21 +0000 (10:47 +0200)]
asus-wmi: Disable acpi-video backlight on desktop machines
Some Asus motherboards for desktop PC-s export an acpi-video interface
advertising backlight support. Test the dmi chassis-type and tell acpi-video
to not register a backlight interface on desktops.
https://bugzilla.redhat.com/show_bug.cgi?id=
1097436
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Mon, 23 Jun 2014 14:45:51 +0000 (16:45 +0200)]
ideapad-laptop: Change Lenovo Yoga 2 series rfkill handling
It seems that the same problems which lead to adding an rfkill blacklist and
putting the Lenovo Yoga 2 11 on it are also present on the Lenovo Yoga 2 13
and Lenovo Yoga 2 Pro too:
https://bugzilla.redhat.com/show_bug.cgi?id=
1021036
https://forums.lenovo.com/t5/Linux-Discussion/Yoga-2-13-not-Pro-Linux-Warning/m-p/
1517612
Testing has shown that the firmware rfkill settings are persistent over
reboots. So blacklisting the driver is not good enough, if the wifi is blocked
at the firmware level the wifi needs to be explictly unblocked through the
ideapad-laptop interface.
And at least on the Lenovo Yoga 2 13 the VPCCMD_RF register which on devices
with hardware kill switch reports the hardware switch state, needs to be
explictly set to 1 (radio enabled / not blocked).
So this patch does 3 things to get proper rfkill handling on these models:
1) Instead of blacklisting the rfkill functionality, which means that people
with a firmware blocked wifi get stuck in that situation, ignore the value
reported by the not present hardware rfkill switch, as this is what is causing
ideapad-laptop to wrongly report all radios as hardware blocks. But do register
the rfkill interfaces so that the user can soft [un]block them.
2) On models without a hardware rfkill switch, explictly set VPCCMD_RF to 1
3) Drop the " 11" postfix from the dmi match string, as the entire Yoga 2
series is affected.
Yoga 2 11:
Reported-and-tested-by: Vincent Gerris <vgerris@gmail.com>
Yoga 2 13:
Tested-by: madls05 <http://ubuntuforums.org/showthread.php?t=2215044>
Yoga 2 Pro:
Reported-and-tested-by: Peter F. Patel-Schneider <pfpschneider@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Hans de Goede [Mon, 23 Jun 2014 11:38:23 +0000 (13:38 +0200)]
thinkpad_acpi: Update mapping for F12 hotkey on *40 models to KEY_FILE
The new keyboard found on the *40 models is also being sold as a standalone
keyboard (with trackpoint):
http://shop.lenovo.com/us/en/itemdetails/
0B47189/460/
60AC6A0372B14F5BA7B12F1FF88E33C7
This uses a standard HUT code for the F12 key with the 6 square boxes on it,
which gets mapped to KEY_FILE by the kernel. Change the mapping done of
identical laptop key done by thinkpad_acpi to also send KEY_FILE for
consistency.
Cc: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Paul Bolle [Tue, 17 Jun 2014 12:06:30 +0000 (14:06 +0200)]
eeepc-laptop: rename _set and _get arguments in macro
The _set and _get arguments to the EEEPC_CREATE_SENSOR_ATTR() macro
are confusingly named: _set should be _get and vice versa. Rename these
arguments.
Drop the trailing semicolon from that macro, while we're at it.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Jean Delvare [Mon, 16 Jun 2014 09:55:13 +0000 (11:55 +0200)]
fujitsu-laptop: Clear build warnings
When CONFIG_FUJITSU_LAPTOP_DEBUG is disabled and W=1, the
fujitsu-laptop driver builds with the following warnings:
drivers/platform/x86/fujitsu-laptop.c: In function "bl_update_status":
drivers/platform/x86/fujitsu-laptop.c:409:8: warning: suggest braces around empty body in an "if" statement [-Wempty-body]
ret);
^
drivers/platform/x86/fujitsu-laptop.c:418:8: warning: suggest braces around empty body in an "if" statement [-Wempty-body]
ret);
^
Rework the debug printk helper macro to get rid of these. I verified
that this change has no effect on the generated binary, both in the
debug and non-debug case.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Cc: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Nick [Fri, 13 Jun 2014 03:04:15 +0000 (23:04 -0400)]
platform/x86/toshiba-apci.c possible bad if test?
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
mog422 [Thu, 12 Jun 2014 06:34:09 +0000 (15:34 +0900)]
sony-laptop: fix doesn't work lid resume settings on Vaio Pro
Signed-off-by: mog422 <admin@mog422.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
poma [Tue, 6 May 2014 20:03:38 +0000 (22:03 +0200)]
WAPF 4 for ASUSTeK COMPUTER INC. X75VBP WLAN ON.
The 'asus-nb-wmi' WAPF parameter must be set to 4, so the internal Wireless LAN device is operational.
Signed-off-by: poma <pomidorabelisima@gmail.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Linus Torvalds [Sat, 16 Aug 2014 00:28:58 +0000 (18:28 -0600)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi
Pull more SCSI changes from James Bottomley:
"This is a small set of updates which missed the first pull. It's more
msix updates, some iscsi and qla4xxx fixes, we also have some string
null termination fixes a return value fix and a couple of pm8001
firmware fixes.
Just a note, we do have a couple of bug fixes coming under separate
cover, but they don't have to be part of the merge window"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
iscsi class: Fix freeing of skb in get host error path
scsi: fix u14-34f printk format warnings
pm8001: fix pm8001_store_update_fw
pm8001: Fix erratic calculation in update_flash
pm8001: Update MAINTAINERS list
libiscsi: return new error code when nop times out
iscsi class: fix get_host_stats return code when not supported
iscsi class: fix get_host_stats error handling
qla4xxx: fix get_host_stats error propagation
qla4xxx: check the return value of dma_alloc_coherent()
scsi: qla4xxx: ql4_mbx.c: Cleaning up missing null-terminate in conjunction with strncpy
scsi: qla4xxx: ql4_os.c: Cleaning up missing null-terminate in conjunction with strncpy
qla4xxx: Use pci_enable_msix_exact() instead of pci_enable_msix()
pm8001: Use pci_enable_msix_exact() instead of pci_enable_msix()
Linus Torvalds [Sat, 16 Aug 2014 00:16:28 +0000 (18:16 -0600)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input layer fixes from Dmitry Torokhov:
"Second round of updates for the input subsystem. Mostly small fixups
to the code merged in the first round (atmel_mxt_ts, wacom) but also a
smallish patch to xbox driver to support Xbox One controllers and a
patch to better handle Synaptics profile sensors found in Cr-48
Chromebooks that should not affect any other devices"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: edt-ft5x06 - remove superfluous assignment
Input: xpad - add support for Xbox One controllers
Input: atmel_mxt_ts - fix a few issues reported by Coverity
Input: atmel_mxt_ts - split config update a bit
Input: atmel_mxt_ts - simplify mxt_initialize a bit
Input: joystick - use get_cycles on ARMv8
Input: wacom - fix compiler warning if !CONFIG_PM
Input: cap1106 - allow changing key mapping from userspace
Input: synaptics - use firmware data for Cr-48
Input: synaptics - properly initialize slots for semi-MT
Input: MT - make slot cleanup callable outside mt_sync_frame()
Input: atmel_mxt_ts - mXT224 DMA quirk was fixed in firmware v2.0.AA
Linus Torvalds [Sat, 16 Aug 2014 00:06:56 +0000 (18:06 -0600)]
Merge tag 'sound-fix-3.17-rc1' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here is the additional fix patches that have been queued up since the
previous pull request. A few HD-audio fixes, a USB-audio quirk
addition, and a couple of trivial cleanup for the legacy OSS codes"
* tag 'sound-fix-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Set TLV_DB_SCALE_MUTE bit for cx5051 vmaster
ALSA: hda/ca0132 - Don't try loading firmware at resume when already failed
ALSA: hda - Fix pop noises on reboot for Dell XPS 13 9333
ALSA: hda - Set internal mic as default input source on Dell XPS 13 9333
ALSA: usb-audio: fix BOSS ME-25 MIDI regression
ALSA: hda - Fix parsing of CMI8888 codec
ALSA: hda - Fix probing and stuttering on CMI8888 HD-audio controller
ALSA: hda/realtek - Fixed ALC286/ALC288 recording delay for Headset Mic
sound: oss: Remove typedefs wanc_info and wavnc_port_info
sound: oss: uart401: Remove typedef uart401_devc
Linus Torvalds [Fri, 15 Aug 2014 23:57:49 +0000 (17:57 -0600)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes (mostly nouveau) from Dave Airlie:
"One doc buidling fixes for a file that moved, along with a bunch of
nouveau fixes, one a build problem on ARM"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/doc: Refer to proper source file
drm/nouveau/platform: fix compilation error
drm/nouveau/gk20a: add LTC device
drm/nouveau: warn if we fail to re-pin fb on resume
drm/nouveau/nvif: fix dac load detect method definition
drm/gf100-/gr: fix -ENOSPC detection when allocating zbc table entries
drm/nouveau/nvif: return null pointers on failure, in addition to ret != 0
drm/nouveau/ltc: fix tag base address getting truncated if above 4GiB
drm/nvc0-/fb/ram: fix use of non-existant ram if partitions aren't uniform
drm/nouveau/bar: behave better if ioremap failed
drm/nouveau/kms: nouveau_fbcon_accel_fini can be static
drm/nouveau: kill unused variable warning if !__OS_HAS_AGP
drm/nouveau/nvif: fix a number of notify thinkos
Linus Torvalds [Fri, 15 Aug 2014 23:56:45 +0000 (17:56 -0600)]
Merge branch 'linux_next' of git://git./linux/kernel/git/mchehab/linux-edac
Pull EDAC updates from Mauro Carvalho Chehab.
* 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
sb_edac: add support for Haswell based systems
sb_edac: Fix mix tab/spaces alignments
edac: add DDR4 and RDDR4
sb_edac: remove bogus assumption on mc ordering
sb_edac: make minimal use of channel_mask
sb_edac: fix socket detection on Ivy Bridge controllers
sb_edac: update Kconfig description
sb_edac: search devices using product id
sb_edac: make RIR limit retrieval per model
sb_edac: make node id retrieval per model
sb_edac: make memory type detection per memory controller
Len Brown [Fri, 15 Aug 2014 01:22:13 +0000 (21:22 -0400)]
tools/power turbostat: tweak whitespace in output format
turbostat -S
output was off by 1 space before this patch.
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Wed, 5 Feb 2014 04:56:40 +0000 (23:56 -0500)]
intel_idle: Broadwell support
Broadwell (BDW) is similar to Haswell (HSW), the preceding processor generation.
Currently, the only difference in their C-state tables is that PC3 max exit latency
is 33usec on HSW and 40usec on BDW.
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Thu, 31 Jul 2014 19:21:24 +0000 (15:21 -0400)]
intel_idle: Disable Baytrail Core and Module C6 auto-demotion
Power efficiency improves on Baytrail (Intel Atom Processor E3000)
when Linux disables C6 auto-demotion.
Based on work by Srinidhi Kasagar <srinidhi.kasagar@intel.com>.
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: x86@kernel.org
Andy Lutomirski [Fri, 15 Aug 2014 18:43:37 +0000 (04:13 +0930)]
module: Clean up ro/nx after early module load failures
The commit
4982223e51e8 module: set nx before marking module MODULE_STATE_COMING.
introduced a regression: if a module fails to parse its arguments or
if mod_sysfs_setup fails, then the module's memory will be freed
while still read-only. Anything that reuses that memory will crash
as soon as it tries to write to it.
Cc: stable@vger.kernel.org # v3.16
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Chris Mason [Tue, 12 Aug 2014 17:47:42 +0000 (10:47 -0700)]
btrfs: disable strict file flushes for renames and truncates
Truncates and renames are often used to replace old versions of a file
with new versions. Applications often expect this to be an atomic
replacement, even if they haven't done anything to make sure the new
version is fully on disk.
Btrfs has strict flushing in place to make sure that renaming over an
old file with a new file will fully flush out the new file before
allowing the transaction commit with the rename to complete.
This ordering means the commit code needs to be able to lock file pages,
and there are a few paths in the filesystem where we will try to end a
transaction with the page lock held. It's rare, but these things can
deadlock.
This patch removes the ordered flushes and switches to a best effort
filemap_flush like ext4 uses. It's not perfect, but it should fix the
deadlocks.
Signed-off-by: Chris Mason <clm@fb.com>
Filipe Manana [Sat, 9 Aug 2014 20:22:27 +0000 (21:22 +0100)]
Btrfs: fix csum tree corruption, duplicate and outdated checksums
Under rare circumstances we can end up leaving 2 versions of a checksum
for the same file extent range.
The reason for this is that after calling btrfs_next_leaf we process
slot 0 of the leaf it returns, instead of processing the slot set in
path->slots[0]. Most of the time (by far) path->slots[0] is 0, but after
btrfs_next_leaf() releases the path and before it searches for the next
leaf, another task might cause a split of the next leaf, which migrates
some of its keys to the leaf we were processing before calling
btrfs_next_leaf(). In this case btrfs_next_leaf() returns again the
same leaf but with path->slots[0] having a slot number corresponding
to the first new key it got, that is, a slot number that didn't exist
before calling btrfs_next_leaf(), as the leaf now has more keys than
it had before. So we must really process the returned leaf starting at
path->slots[0] always, as it isn't always 0, and the key at slot 0 can
have an offset much lower than our search offset/bytenr.
For example, consider the following scenario, where we have:
sums->bytenr:
40157184, sums->len: 16384, sums end:
40173568
four 4kb file data blocks with offsets
40157184,
40161280,
40165376,
40169472
Leaf N:
slot = 0 slot = btrfs_header_nritems() - 1
|-------------------------------------------------------------------|
| [(CSUM CSUM
39239680), size 8] ... [(CSUM CSUM
40116224), size 4] |
|-------------------------------------------------------------------|
Leaf N + 1:
slot = 0 slot = btrfs_header_nritems() - 1
|--------------------------------------------------------------------|
| [(CSUM CSUM
40161280), size 32] ... [((CSUM CSUM
40615936), size 8 |
|--------------------------------------------------------------------|
Because we are at the last slot of leaf N, we call btrfs_next_leaf() to
find the next highest key, which releases the current path and then searches
for that next key. However after releasing the path and before finding that
next key, the item at slot 0 of leaf N + 1 gets moved to leaf N, due to a call
to ctree.c:push_leaf_left() (via ctree.c:split_leaf()), and therefore
btrfs_next_leaf() will returns us a path again with leaf N but with the slot
pointing to its new last key (CSUM CSUM
40161280). This new version of leaf N
is then:
slot = 0 slot = btrfs_header_nritems() - 2 slot = btrfs_header_nritems() - 1
|----------------------------------------------------------------------------------------------------|
| [(CSUM CSUM
39239680), size 8] ... [(CSUM CSUM
40116224), size 4] [(CSUM CSUM
40161280), size 32] |
|----------------------------------------------------------------------------------------------------|
And incorrecly using slot 0, makes us set next_offset to
39239680 and we jump
into the "insert:" label, which will set tmp to:
tmp = min((sums->len - total_bytes) >> blocksize_bits,
(next_offset - file_key.offset) >> blocksize_bits) =
min((16384 - 0) >> 12, (
39239680 -
40157184) >> 12) =
min(4, (u64)-917504 =
18446744073708634112 >> 12) = 4
and
ins_size = csum_size * tmp = 4 * 4 = 16 bytes.
In other words, we insert a new csum item in the tree with key
(CSUM_OBJECTID CSUM_KEY
40157184 = sums->bytenr) that contains the checksums
for all the data (4 blocks of 4096 bytes each = sums->len). Which is wrong,
because the item with key (CSUM CSUM
40161280) (the one that was moved from
leaf N + 1 to the end of leaf N) contains the old checksums of the last 12288
bytes of our data and won't get those old checksums removed.
So this leaves us 2 different checksums for 3 4kb blocks of data in the tree,
and breaks the logical rule:
Key_N+1.offset >= Key_N.offset + length_of_data_its_checksums_cover
An obvious bad effect of this is that a subsequent csum tree lookup to get
the checksum of any of the blocks with logical offset of
40161280,
40165376
or
40169472 (the last 3 4kb blocks of file data), will get the old checksums.
Cc: stable@vger.kernel.org
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Takashi Iwai [Mon, 28 Jul 2014 08:57:04 +0000 (10:57 +0200)]
Btrfs: Fix memory corruption by ulist_add_merge() on 32bit arch
We've got bug reports that btrfs crashes when quota is enabled on
32bit kernel, typically with the Oops like below:
BUG: unable to handle kernel NULL pointer dereference at
00000004
IP: [<
f9234590>] find_parent_nodes+0x360/0x1380 [btrfs]
*pde =
00000000
Oops: 0000 [#1] SMP
CPU: 0 PID: 151 Comm: kworker/u8:2 Tainted: G S W 3.15.2-1.gd43d97e-default #1
Workqueue: btrfs-qgroup-rescan normal_work_helper [btrfs]
task:
f1478130 ti:
f147c000 task.ti:
f147c000
EIP: 0060:[<
f9234590>] EFLAGS:
00010213 CPU: 0
EIP is at find_parent_nodes+0x360/0x1380 [btrfs]
EAX:
f147dda8 EBX:
f147ddb0 ECX:
00000011 EDX:
00000000
ESI:
00000000 EDI:
f147dda4 EBP:
f147ddf8 ESP:
f147dd38
DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0:
8005003b CR2:
00000004 CR3:
00bf3000 CR4:
00000690
Stack:
00000000 00000000 f147dda4 00000050 00000001 00000000 00000001 00000050
00000001 00000000 d3059000 00000001 00000022 000000a8 00000000 00000000
00000000 000000a1 00000000 00000000 00000001 00000000 00000000 11800000
Call Trace:
[<
f923564d>] __btrfs_find_all_roots+0x9d/0xf0 [btrfs]
[<
f9237bb1>] btrfs_qgroup_rescan_worker+0x401/0x760 [btrfs]
[<
f9206148>] normal_work_helper+0xc8/0x270 [btrfs]
[<
c025e38b>] process_one_work+0x11b/0x390
[<
c025eea1>] worker_thread+0x101/0x340
[<
c026432b>] kthread+0x9b/0xb0
[<
c0712a71>] ret_from_kernel_thread+0x21/0x30
[<
c0264290>] kthread_create_on_node+0x110/0x110
This indicates a NULL corruption in prefs_delayed list. The further
investigation and bisection pointed that the call of ulist_add_merge()
results in the corruption.
ulist_add_merge() takes u64 as aux and writes a 64bit value into
old_aux. The callers of this function in backref.c, however, pass a
pointer of a pointer to old_aux. That is, the function overwrites
64bit value on 32bit pointer. This caused a NULL in the adjacent
variable, in this case, prefs_delayed.
Here is a quick attempt to band-aid over this: a new function,
ulist_add_merge_ptr() is introduced to pass/store properly a pointer
value instead of u64. There are still ugly void ** cast remaining
in the callers because void ** cannot be taken implicitly. But, it's
safer than explicit cast to u64, anyway.
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=887046
Cc: <stable@vger.kernel.org> [v3.11+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Chris Mason <clm@fb.com>
Liu Bo [Thu, 24 Jul 2014 14:48:05 +0000 (22:48 +0800)]
Btrfs: fix compressed write corruption on enospc
When failing to allocate space for the whole compressed extent, we'll
fallback to uncompressed IO, but we've forgotten to redirty the pages
which belong to this compressed extent, and these 'clean' pages will
simply skip 'submit' part and go to endio directly, at last we got data
corruption as we write nothing.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Tested-By: Martin Steigerwald <martin@lichtvoll.de>
Signed-off-by: Chris Mason <clm@fb.com>
Mark Fasheh [Thu, 17 Jul 2014 19:39:04 +0000 (12:39 -0700)]
btrfs: correctly handle return from ulist_add
ulist_add() can return '1' on sucess, which qgroup_subtree_accounting()
doesn't take into account. As a result, that value can be bubbled up to
callers, causing an error to be printed. Fix this by only returning the
value of ulist_add() when it indicates an error.
Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Signed-off-by: Chris Mason <clm@fb.com>
Mark Fasheh [Thu, 17 Jul 2014 19:39:01 +0000 (12:39 -0700)]
btrfs: qgroup: account shared subtrees during snapshot delete
During its tree walk, btrfs_drop_snapshot() will skip any shared
subtrees it encounters. This is incorrect when we have qgroups
turned on as those subtrees need to have their contents
accounted. In particular, the case we're concerned with is when
removing our snapshot root leaves the subtree with only one root
reference.
In those cases we need to find the last remaining root and add
each extent in the subtree to the corresponding qgroup exclusive
counts.
This patch implements the shared subtree walk and a new qgroup
operation, BTRFS_QGROUP_OPER_SUB_SUBTREE. When an operation of
this type is encountered during qgroup accounting, we search for
any root references to that extent and in the case that we find
only one reference left, we go ahead and do the math on it's
exclusive counts.
Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
Filipe Manana [Wed, 2 Jul 2014 19:07:54 +0000 (20:07 +0100)]
Btrfs: read lock extent buffer while walking backrefs
Before processing the extent buffer, acquire a read lock on it, so
that we're safe against concurrent updates on the extent buffer.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Josef Bacik [Wed, 2 Jul 2014 17:54:25 +0000 (10:54 -0700)]
Btrfs: __btrfs_mod_ref should always use no_quota
Before I extended the no_quota arg to btrfs_dec/inc_ref because I didn't
understand how snapshot delete was using it and assumed that we needed the
quota operations there. With Mark's work this has turned out to be not the
case, we _always_ need to use no_quota for btrfs_dec/inc_ref, so just drop the
argument and make __btrfs_mod_ref call it's process function with no_quota set
always. Thanks,
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
David Sterba [Tue, 1 Jul 2014 14:21:33 +0000 (16:21 +0200)]
btrfs: adjust statfs calculations according to raid profiles
This has been discussed in thread:
http://thread.gmane.org/gmane.comp.file-systems.btrfs/32528
and this patch implements this proposal:
http://thread.gmane.org/gmane.comp.file-systems.btrfs/32536
Works fine for "clean" raid profiles where the raid factor correction
does the right job. Otherwise it's pessimistic and may show low space
although there's still some left.
The df nubmers are lightly wrong in case of mixed block groups, but this
is not a major usecase and can be addressed later.
The RAID56 numbers are wrong almost the same way as before and will be
addressed separately.
CC: Hugo Mills <hugo@carfax.org.uk>
CC: cwillu <cwillu@cwillu.com>
CC: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
Dmitry Torokhov [Fri, 15 Aug 2014 06:02:58 +0000 (23:02 -0700)]
Merge branch 'next' into for-linus
Prepare second round of input updates for 3.17.
Amit Shah [Mon, 11 Aug 2014 18:35:41 +0000 (00:05 +0530)]
virtio: rng: add derating factor for use by hwrng core
The khwrngd thread is started when a hwrng device of sufficient
quality is registered. The virtio-rng device is backed by the
hypervisor, and we trust the hypervisor to provide real entropy.
A malicious or badly-implemented hypervisor is a scenario that's
irrelevant -- such a setup is bound to cause all sorts of badness, and a
compromised hwrng is the least of the user's worries.
Given this, we might as well assume that the quality of randomness we
receive is perfectly trustworthy. Hence, we use 100% for the factor,
indicating maximum confidence in the source.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: H. Peter Anvin <hpa@linux.intel.com>
Reviewed-by: Amos Kong <akong@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Linus Torvalds [Fri, 15 Aug 2014 00:13:46 +0000 (18:13 -0600)]
Merge tag 'pm+acpi-3.17-rc1-2' of git://git./linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management updates from Rafael Wysocki:
"These are a couple of regression fixes, cpuidle menu governor
optimizations, fixes for ACPI proccessor and battery drivers,
hibernation fix to avoid problems related to the e820 memory map,
fixes for a few cpufreq drivers and a new version of the suspend
profiling tool analyze_suspend.py.
Specifics:
- Fix for an ACPI-based device hotplug regression introduced in 3.14
that causes a kernel panic to trigger when memory hot-remove is
attempted with CONFIG_ACPI_HOTPLUG_MEMORY unset from Tang Chen
- Fix for a cpufreq regression introduced in 3.16 that triggers a
"sleeping function called from invalid context" bug in
dev_pm_opp_init_cpufreq_table() from Stephen Boyd
- ACPI battery driver fix for a warning message added in 3.16 that
prints silly stuff sometimes from Mariusz Ceier
- Hibernation fix for safer handling of mismatches in the 820 memory
map between the configurations during image creation and during the
subsequent restore from Chun-Yi Lee
- ACPI processor driver fix to handle CPU hotplug notifications
correctly during system suspend/resume from Lan Tianyu
- Series of four cpuidle menu governor cleanups that also should
speed it up a bit from Mel Gorman
- Fixes for the speedstep-smi, integrator, cpu0 and arm_big_little
cpufreq drivers from Hans Wennborg, Himangi Saraogi, Markus
Pargmann and Uwe Kleine-König
- Version 3.0 of the analyze_suspend.py suspend profiling tool from
Todd E Brandt"
* tag 'pm+acpi-3.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / battery: Fix warning message in acpi_battery_get_state()
PM / tools: analyze_suspend.py: update to v3.0
cpufreq: arm_big_little: fix module license spec
cpufreq: speedstep-smi: fix decimal printf specifiers
ACPI / hotplug: Check scan handlers in acpi_scan_hot_remove()
cpufreq: OPP: Avoid sleeping while atomic
cpufreq: cpu0: Do not print error message when deferring
cpufreq: integrator: Use set_cpus_allowed_ptr
PM / hibernate: avoid unsafe pages in e820 reserved regions
ACPI / processor: Make acpi_cpu_soft_notify() process CPU FROZEN events
cpuidle: menu: Lookup CPU runqueues less
cpuidle: menu: Call nr_iowait_cpu less times
cpuidle: menu: Use ktime_to_us instead of reinventing the wheel
cpuidle: menu: Use shifts when calculating averages where possible
Linus Torvalds [Fri, 15 Aug 2014 00:10:33 +0000 (18:10 -0600)]
Merge tag 'pci-v3.17-changes-2' of git://git./linux/kernel/git/helgaas/pci
Pull DEFINE_PCI_DEVICE_TABLE removal from Bjorn Helgaas:
"Part two of the PCI changes for v3.17:
- Remove DEFINE_PCI_DEVICE_TABLE macro use (Benoit Taine)
It's a mechanical change that removes uses of the
DEFINE_PCI_DEVICE_TABLE macro. I waited until later in the merge
window to reduce conflicts, but it's possible you'll still see a few"
* tag 'pci-v3.17-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use
Thierry Reding [Fri, 8 Aug 2014 09:33:12 +0000 (11:33 +0200)]
drm/doc: Refer to proper source file
Commit
21d70354bba9 ("drm: move drm_stub.c to drm_drv.c") moves the code
from drm_stub.c into drm_drv.c. Update DocBook to include that instead.
This also came in via other people, but all the same.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Thu, 14 Aug 2014 23:29:35 +0000 (09:29 +1000)]
Merge branch 'linux-3.17' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes
A couple of thinkos from the -next merge, some random fixes from a
coverity scan, fix for (at least) GK106 accidentally using
non-existent vram on some board configurations, and better behaviour
of the instmem allocations if vmalloc space runs out.
* 'linux-3.17' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau/platform: fix compilation error
drm/nouveau/gk20a: add LTC device
drm/nouveau: warn if we fail to re-pin fb on resume
drm/nouveau/nvif: fix dac load detect method definition
drm/gf100-/gr: fix -ENOSPC detection when allocating zbc table entries
drm/nouveau/nvif: return null pointers on failure, in addition to ret != 0
drm/nouveau/ltc: fix tag base address getting truncated if above 4GiB
drm/nvc0-/fb/ram: fix use of non-existant ram if partitions aren't uniform
drm/nouveau/bar: behave better if ioremap failed
drm/nouveau/kms: nouveau_fbcon_accel_fini can be static
drm/nouveau: kill unused variable warning if !__OS_HAS_AGP
drm/nouveau/nvif: fix a number of notify thinkos
Linus Torvalds [Thu, 14 Aug 2014 23:28:08 +0000 (17:28 -0600)]
Merge git://git./linux/kernel/git/davem/sparc
Pull Sparc fixes from David Miller:
"Hook up the memfd syscall, and properly claim all PCI resources
discovered when building the PCI device tree"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Hook up memfd_create system call.
sparc64: Properly claim resources as each PCI bus is probed.
sparc64: Skip bogus PCI bridge ranges.
sparc64: Expand PCI bridge probing debug logging.
Linus Torvalds [Thu, 14 Aug 2014 23:25:21 +0000 (17:25 -0600)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"I'm sending this out, in particular, to get the iwlwifi fix
propagated:
1) Fix build due to missing include in i40e driver, from Lucas
Tanure.
2) Memory leak in openvswitch port allocation, from Chirstoph Jaeger.
3) Check DMA mapping errors in myri10ge, from Stanislaw Gruszka.
4) Fix various deadlock scenerios in sunvnet driver, from Sowmini
Varadhan.
5) Fix cxgb4i build failures with incompatible Kconfig settings of
the driver vs ipv6, from Anish Bhatt.
6) Fix generation of ACK packet timestamps in the presence of TSO
which will be split up, from Willem de Bruijn.
7) Don't enable sched scan in iwlwifi driver, it causes firmware
crashes in some revisions. From Emmanuel Grumbach.
8) Revert a macvlan simplification that causes crashes.
9) Handle RTT calculations properly in the presence of repair'd SKBs,
from Andrey Vagin.
10) SIT tunnel lookup uses wrong device index in compares, from
Shmulik Ladkani.
11) Handle MTU reductions in TCP properly for ipv4 mapped ipv6
sockets, from Neal Cardwell.
12) Add missing annotations in rhashtable code, from Thomas Graf.
13) Fix false interpretation of two RTOs as being from the same TCP
loss event in the FRTO code, from Neal Cardwell"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (42 commits)
netlink: Annotate RCU locking for seq_file walker
rhashtable: fix annotations for rht_for_each_entry_rcu()
rhashtable: unexport and make rht_obj() static
rhashtable: RCU annotations for next pointers
tcp: fix ssthresh and undo for consecutive short FRTO episodes
tcp: don't allow syn packets without timestamps to pass tcp_tw_recycle logic
tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()
sit: Fix ipip6_tunnel_lookup device matching criteria
net: ethernet: ibm: ehea: Remove duplicate object from Makefile
net: xgene: Check negative return value of xgene_enet_get_ring_size()
tcp: don't use timestamp from repaired skb-s to calculate RTT (v2)
net: xilinx: Remove .owner field for driver
Revert "macvlan: simplify the structure port"
iwlwifi: mvm: disable scheduled scan to prevent firmware crash
xen-netback: remove loop waiting function
xen-netback: don't stop dealloc kthread too early
xen-netback: move NAPI add/remove calls
xen-netback: fix debugfs entry creation
xen-netback: fix debugfs write length check
net-timestamp: fix missing tcp fragmentation cases
...
David S. Miller [Thu, 14 Aug 2014 22:17:37 +0000 (15:17 -0700)]
Merge tag 'master-2014-08-14' of git://git./linux/kernel/git/linville/wireless
John W. Linville says:
====================
pull request: wireless 2014-08-14
Please pull this batch of fixes intended for the 3.17 stream...
Arend van Spriel brings two brcmfmac fixes, one which fixes a memory
leak and one which corrects some merge damage.
Emmanuel Grumbach fixes Linus's iwlwifi firmware-related log spam.
Rickard Strandqvist does some proper NULL termination after a call
to strncpy.
Ronald Wahl corrects a carl9170 problem with sending URBs with the
wrong endpoint type (resulting in log spam).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf [Wed, 13 Aug 2014 14:38:32 +0000 (16:38 +0200)]
netlink: Annotate RCU locking for seq_file walker
Silences the following sparse warnings:
net/netlink/af_netlink.c:2926:21: warning: context imbalance in 'netlink_seq_start' - wrong count at exit
net/netlink/af_netlink.c:2972:13: warning: context imbalance in 'netlink_seq_stop' - unexpected unlock
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf [Wed, 13 Aug 2014 14:38:31 +0000 (16:38 +0200)]
rhashtable: fix annotations for rht_for_each_entry_rcu()
Call rcu_deference_raw() directly from within rht_for_each_entry_rcu()
as list_for_each_entry_rcu() does.
Fixes the following sparse warnings:
net/netlink/af_netlink.c:2906:25: expected struct rhash_head const *__mptr
net/netlink/af_netlink.c:2906:25: got struct rhash_head [noderef] <asn:4>*<noident>
Fixes:
e341694e3eb57fc ("netlink: Convert netlink_lookup() to use RCU protected hash table")
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf [Wed, 13 Aug 2014 14:38:30 +0000 (16:38 +0200)]
rhashtable: unexport and make rht_obj() static
No need to export rht_obj(), all inner to outer object translations
occur internally. It was intended to be used with rht_for_each() which
now primarily serves as the iterator for rhashtable_remove_pprev() to
effectively flush and free the full table.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Thomas Graf [Wed, 13 Aug 2014 14:38:29 +0000 (16:38 +0200)]
rhashtable: RCU annotations for next pointers
Properly annotate next pointers as access is RCU protected in
the lookup path.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexandre Courbot [Tue, 12 Aug 2014 22:16:53 +0000 (15:16 -0700)]
drm/nouveau/platform: fix compilation error
nouveau_platform.c was still using the old nouveau_dev() macro,
triggering a compilation error. Fix this.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Alexandre Courbot [Tue, 12 Aug 2014 22:16:52 +0000 (15:16 -0700)]
drm/nouveau/gk20a: add LTC device
LTC device is now required for PGRAPH to work, add it.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 12 Aug 2014 13:35:35 +0000 (23:35 +1000)]
drm/nouveau: warn if we fail to re-pin fb on resume
Spotted by Coverity.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 12 Aug 2014 13:16:04 +0000 (23:16 +1000)]
drm/nouveau/nvif: fix dac load detect method definition
A thinko made me turn this into a u16 when cleaning up.
Spotted by coverity.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 12 Aug 2014 13:11:18 +0000 (23:11 +1000)]
drm/gf100-/gr: fix -ENOSPC detection when allocating zbc table entries
Spotted by Coverity.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 12 Aug 2014 12:56:09 +0000 (22:56 +1000)]
drm/nouveau/nvif: return null pointers on failure, in addition to ret != 0
Reported by Coverity. The intention is that the return value is
checked, but let's be more paranoid and make it extremely obvious
if something forgets to.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Mon, 11 Aug 2014 23:27:54 +0000 (09:27 +1000)]
drm/nouveau/ltc: fix tag base address getting truncated if above 4GiB
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Mon, 11 Aug 2014 23:17:41 +0000 (09:17 +1000)]
drm/nvc0-/fb/ram: fix use of non-existant ram if partitions aren't uniform
Likely a large part of the GK106 woes..
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Mon, 11 Aug 2014 01:52:44 +0000 (11:52 +1000)]
drm/nouveau/bar: behave better if ioremap failed
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Fengguang Wu [Sun, 10 Aug 2014 02:36:26 +0000 (12:36 +1000)]
drm/nouveau/kms: nouveau_fbcon_accel_fini can be static
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Sun, 10 Aug 2014 02:39:09 +0000 (12:39 +1000)]
drm/nouveau: kill unused variable warning if !__OS_HAS_AGP
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Mon, 11 Aug 2014 01:36:45 +0000 (11:36 +1000)]
drm/nouveau/nvif: fix a number of notify thinkos
Note to self: more sleep
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Neal Cardwell [Thu, 14 Aug 2014 20:13:07 +0000 (16:13 -0400)]
tcp: fix ssthresh and undo for consecutive short FRTO episodes
Fix TCP FRTO logic so that it always notices when snd_una advances,
indicating that any RTO after that point will be a new and distinct
loss episode.
Previously there was a very specific sequence that could cause FRTO to
fail to notice a new loss episode had started:
(1) RTO timer fires, enter FRTO and retransmit packet 1 in write queue
(2) receiver ACKs packet 1
(3) FRTO sends 2 more packets
(4) RTO timer fires again (should start a new loss episode)
The problem was in step (3) above, where tcp_process_loss() returned
early (in the spot marked "Step 2.b"), so that it never got to the
logic to clear icsk_retransmits. Thus icsk_retransmits stayed
non-zero. Thus in step (4) tcp_enter_loss() would see the non-zero
icsk_retransmits, decide that this RTO is not a new episode, and
decide not to cut ssthresh and remember the current cwnd and ssthresh
for undo.
There were two main consequences to the bug that we have
observed. First, ssthresh was not decreased in step (4). Second, when
there was a series of such FRTO (1-4) sequences that happened to be
followed by an FRTO undo, we would restore the cwnd and ssthresh from
before the entire series started (instead of the cwnd and ssthresh
from before the most recent RTO). This could result in cwnd and
ssthresh being restored to values much bigger than the proper values.
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Fixes:
e33099f96d99c ("tcp: implement RFC5682 F-RTO")
Signed-off-by: David S. Miller <davem@davemloft.net>
Hannes Frederic Sowa [Thu, 14 Aug 2014 20:06:12 +0000 (22:06 +0200)]
tcp: don't allow syn packets without timestamps to pass tcp_tw_recycle logic
tcp_tw_recycle heavily relies on tcp timestamps to build a per-host
ordering of incoming connections and teardowns without the need to
hold state on a specific quadruple for TCP_TIMEWAIT_LEN, but only for
the last measured RTO. To do so, we keep the last seen timestamp in a
per-host indexed data structure and verify if the incoming timestamp
in a connection request is strictly greater than the saved one during
last connection teardown. Thus we can verify later on that no old data
packets will be accepted by the new connection.
During moving a socket to time-wait state we already verify if timestamps
where seen on a connection. Only if that was the case we let the
time-wait socket expire after the RTO, otherwise normal TCP_TIMEWAIT_LEN
will be used. But we don't verify this on incoming SYN packets. If a
connection teardown was less than TCP_PAWS_MSL seconds in the past we
cannot guarantee to not accept data packets from an old connection if
no timestamps are present. We should drop this SYN packet. This patch
closes this loophole.
Please note, this patch does not make tcp_tw_recycle in any way more
usable but only adds another safety check:
Sporadic drops of SYN packets because of reordering in the network or
in the socket backlog queues can happen. Users behing NAT trying to
connect to a tcp_tw_recycle enabled server can get caught in blackholes
and their connection requests may regullary get dropped because hosts
behind an address translator don't have synchronized tcp timestamp clocks.
tcp_tw_recycle cannot work if peers don't have tcp timestamps enabled.
In general, use of tcp_tw_recycle is disadvised.
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Neal Cardwell [Thu, 14 Aug 2014 16:40:05 +0000 (12:40 -0400)]
tcp: fix tcp_release_cb() to dispatch via address family for mtu_reduced()
Make sure we use the correct address-family-specific function for
handling MTU reductions from within tcp_release_cb().
Previously AF_INET6 sockets were incorrectly always using the IPv6
code path when sometimes they were handling IPv4 traffic and thus had
an IPv4 dst.
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Diagnosed-by: Willem de Bruijn <willemb@google.com>
Fixes:
563d34d057862 ("tcp: dont drop MTU reduction indications")
Reviewed-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>