The Armada 38x had a label for UART0, but not UART1. This commit fixes
that.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
On Marvell Armada 38x, the USB2 controller registers are at 0x58000,
so the corresponding Device Tree node should have a unit address of
58000, and not 50000. We were using 50000 due to an incorrect
copy/pastebin of Armada 370/XP code.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
The Armada 385 Access Point Development Board has a 1GB NAND SLC chip from
Micron as its main storage. Enable it.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Add a DSA section to the DT blob representing the Ethernet switch.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
On the LaCie 2Big Network v2 (net2big_v2) board, the fan alarm is not
wired to the I2C fan controller but to a separe GPIO. This GPIO can be
controlled by using the gpio-fan driver.
This patch adds the gpio-fan alarm description in the net2big_v2 DTS.
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
The unit-address is supposed to be equal the first reg address, which is not
the case for the MPIC, that uses the mbus-controller one. Fix this.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
This add common pinctrl settings for pcie[01]_clkreq, spi1, i2c[23],
and internal i2c mux. These settings have either one or two options
only, so put them into the SoC dtsi instead of repeating them on
board level.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Since turning on idle-halt in commit fe46aa679f (ARM: at91/dt: add
sam9 watchdog default options to SoCs), SoCs compatible with at91sam9260-wdt
no longer reboot if the watchdog times out while the CPU is in idle state.
Removing the 'idle-halt' flag that was set by default fixes this.
Signed-off-by: Michel Marti <mma@objectxp.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
[nicolas.ferre@atmel.com: rework the commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
atmel,idle-halt property should be used with care, it actually makes the
watchdog not counting when the CPU is in idle state, therefore the
watchdog reset time depends on mean CPU usage and will not reset at all
of the CPU stop working while it is in idle state, which is probably not
what you want.
Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
There is now only one defconfig for the at91rm9200 and at91sam9. Add ethernet
support for the at91rm9200.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Recent distributions and userspace tools after 2009/2010 depend on
the existence of /sys/class/block/, and will not work with this option enabled.
Signed-off-by: Anthony Harivel <anthony.harivel@emtrion.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Corrected pins used by usart3.
Signed-off-by: Jonas Andersson <jonas@microbit.se>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Commit ff04660e48b20 ("ARM: at91/dt: add SRAM nodes") used the same base
address for sram0 and sram1 leading to the following warning:
WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x50/0x70()
sysfs: cannot create duplicate filename '/devices/platform/300000.sram'
Fix the base address for sram1.
Signed-off-by: Alexander Stein <alexanders83@web.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
On some platforms, there are multiple SRAM nodes defined in the device tree but
some of them are disabled, leading to allocation failure. Try to find the first
enabled SRAM node and allocate from it.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
at91rm9200 standby and suspend to ram has been broken since
00482a4078. It is wrongly using AT91_BASE_SYS which is a physical address
and actually doesn't correspond to any register on at91rm9200.
Use the correct at91_ramc_base[0] instead.
Fixes: 00482a4078 (ARM: at91: implement the standby function for pm/cpuidle)
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
The DDRSDR controller fails miserably to put LPDDR1 memories in
self-refresh. Force the controller to think it has DDR2 memories
during the self-refresh period, as the DDR2 self-refresh spec is
equivalent to LPDDR1, and is correctly implemented in the
controller.
Assume that the second controller has the same fault, but that is
untested.
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Removed timeout on XTAL, PLL lock and Master Clock Ready, hang if
something went wrong instead of continuing in unknown condition. There
is not much we can do if a PLL lock never ends, we are running in SRAM
and we will not be able to connect back the sdram or ddram in order to
be able to fire up a message or just panic.
As a bonus, not decounting the timeout register in slow clock mode
reduce cumulated suspend time and resume time from ~17ms to ~15ms.
Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Wenyou.Yang <wenyou.yang@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This is a tricky story of the new atomic state handling and the legacy
code fighting over each another. The bug at hand is an underrun of the
framebuffer reference with subsequent hilarity caused by the load
detect code. Which is peculiar since the the exact same code works
fine as the implementation of the legacy setcrtc ioctl.
Let's look at the ingredients:
- Currently our code is a crazy mix of legacy modeset interfaces to
set the parameters and half-baked atomic state tracking underneath.
While this transition is going we're using the transitional plane
helpers to update the atomic side (drm_plane_helper_disable/update
and friends), i.e. plane->state->fb. Since the state structure owns
the fb those functions take care of that themselves.
The legacy state (specifically crtc->primary->fb) is still managed
by the old code (and mostly by the drm core), with the fb reference
counting done by callers (core drm for the ioctl or the i915 load
detect code). The relevant commit is
commit ea2c67bb4a
Author: Matt Roper <matthew.d.roper@intel.com>
Date: Tue Dec 23 10:41:52 2014 -0800
drm/i915: Move to atomic plane helpers (v9)
- drm_plane_helper_disable has special code to handle multiple calls
in a row - it checks plane->crtc == NULL and bails out. This is to
match the proper atomic implementation which needs the crtc to get
at the implied locking context atomic updates always need. See
commit acf24a395c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue Jul 29 15:33:05 2014 +0200
drm/plane-helper: transitional atomic plane helpers
- The universal plane code split out the implicit primary plane from
the CRTC into it's own full-blown drm_plane object. As part of that
the setcrtc ioctl (which updated both the crtc mode and primary
plane) learned to set crtc->primary->crtc on modeset to make sure
the plane->crtc assignments statate up to date in
commit e13161af80
Author: Matt Roper <matthew.d.roper@intel.com>
Date: Tue Apr 1 15:22:38 2014 -0700
drm: Add drm_crtc_init_with_planes() (v2)
Unfortunately we've forgotten to update the load detect code. Which
wasn't a problem since the load detect modeset is temporary and
always undone before we drop the locks.
- Finally there is a organically grown history (i.e. don't ask) around
who sets the legacy plane->fb for the various driver entry points.
Originally updating that was the drivers duty, but for almost all
places we've moved that (plus updating the refcounts) into the core.
Again the exception is the load detect code.
Taking all together the following happens:
- The load detect code doesn't set crtc->primary->crtc. This is only
really an issue on crtcs never before used or when userspace
explicitly disabled the primary plane.
- The plane helper glue code short-circuits because of that and leaves
a non-NULL fb behind in plane->state->fb and plane->fb. The state
fb isn't a real problem (it's properly refcounted on its own), it's
just the canary.
- Load detect code drops the reference for that fb, but doesn't set
plane->fb = NULL. This is ok since it's still living in that old
world where drivers had to clear the pointer but the core/callers
handled the refcounting.
- On the next modeset the drm core notices plane->fb and takes care of
refcounting it properly by doing another unref. This drops the
refcount to zero, leaving state->plane now pointing at freed memory.
- intel_plane_duplicate_state still assume it owns a reference to that
very state->fb and bad things start to happen.
Fix this all by applying the same duct-tape as for the legacy setcrtc
ioctl code and set crtc->primary->crtc properly.
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Paulo Zanoni <przanoni@gmail.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DT file to enable the Wireless Audio reference design based on the
BCM58305.
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
Tested-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Jonathan Richardson <jonathar@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
- Fix a translation problem in of_get_named_gpiod_flags()
- Fix a long standing container_of() mistake in the TPS65912
driver.
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Merge tag 'gpio-v4.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Two GPIO fixes:
- Fix a translation problem in of_get_named_gpiod_flags()
- Fix a long standing container_of() mistake in the TPS65912 driver"
* tag 'gpio-v4.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: tps65912: fix wrong container_of arguments
gpiolib: of: allow of_gpiochip_find_and_xlate to find more than one chip per node
Pull thermal management fixes from Eduardo Valentin:
"Specifics:
- Several fixes in tmon tool.
- Fixes in intel int340x for _ART and _TRT tables.
- Add id for Avoton SoC into powerclamp driver.
- Fixes in RCAR thermal driver to remove race conditions and fix fail
path
- Fixes in TI thermal driver: removal of unnecessary code and build
fix if !CONFIG_PM_SLEEP
- Cleanups in exynos thermal driver
- Add stubs for include/linux/thermal.h. Now drivers using thermal
calls but that also work without CONFIG_THERMAL will be able to
compile for systems that don't care about thermal.
Note: I am sending this pull on Rui's behalf while he fixes issues in
his Linux box"
* 'fixes-for-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: int340x_thermal: Ignore missing _ART, _TRT tables
thermal/intel_powerclamp: add id for Avoton SoC
tools/thermal: tmon: silence 'set but not used' warnings
tools/thermal: tmon: use pkg-config to determine library dependencies
tools/thermal: tmon: support cross-compiling
tools/thermal: tmon: add .gitignore
tools/thermal: tmon: fixup tui windowing calculations
tools/thermal: tmon: tui: don't hard-code dialog window size assumptions
tools/thermal: tmon: add min/max macros
tools/thermal: tmon: add --target-temp parameter
thermal: exynos: Clean-up code to use oneline entry for exynos compatible table
thermal: rcar: Make error and remove paths symmetrical with init
thermal: rcar: Fix race condition between init and interrupt
thermal: Introduce dummy functions when thermal is not defined
ti-soc-thermal: Delete an unnecessary check before the function call "cpufreq_cooling_unregister"
thermal: ti-soc-thermal: bandgap: Fix build warning if !CONFIG_PM_SLEEP
- fix a read-balance problem that was reported 2 years ago, but
that I never noticed the report :-(
- fix for rare RAID6 problem causing incorrect bitmap updates when
two devices fail.
- add __ATTR_PREALLOC annotation now that it is possible.
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Merge tag 'md/4.0-fixes' of git://neil.brown.name/md
Pull md fixes from Neil Brown:
"Three md fixes:
- fix a read-balance problem that was reported 2 years ago, but that
I never noticed the report :-(
- fix for rare RAID6 problem causing incorrect bitmap updates when
two devices fail.
- add __ATTR_PREALLOC annotation now that it is possible"
* tag 'md/4.0-fixes' of git://neil.brown.name/md:
md: mark some attributes as pre-alloc
raid5: check faulty flag for array status during recovery.
md/raid1: fix read balance when a drive is write-mostly.
This is just a single patch to fix the KSTK_EIP() and KSTK_ESP() macros
for metag which have always been erronously returning the PC and stack
pointer of the task's kernel context rather than from its user context
saved at entry from userland into the kernel, which affects the contents
of /proc/<pid>/maps and /proc/<pid>/stat.
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Merge tag 'metag-fixes-v4.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag
Pull arch/metag fix from James Hogan:
"This is just a single patch to fix the KSTK_EIP() and KSTK_ESP()
macros for metag which have always been erronously returning the PC
and stack pointer of the task's kernel context rather than from its
user context saved at entry from userland into the kernel, which
affects the contents of /proc/<pid>/maps and /proc/<pid>/stat"
* tag 'metag-fixes-v4.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
metag: Fix KSTK_EIP() and KSTK_ESP() macros
Add a DTS file for MINIX NEO-X8, a Meson8-based digital media player.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Add pinctrl node to the DTSI file for meson8 and sub-nodes for some
standard mux configurations.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Add a node for the Ethernet controller to Meson DTS file and
enable it on the Geniatech ATV1200 board.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
This adds a node for the SPI Flash Controller to the Amlogic Meson
DTS.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Carlo Caione <carlo@endlessm.com>
Acked-by: Mark Brown <broonie@kernel.org>
Pull x86 fixes from Ingo Molnar:
"A CR4-shadow 32-bit init fix, plus two typo fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86: Init per-cpu shadow copy of CR4 on 32-bit CPUs too
x86/platform/intel-mid: Fix trivial printk message typo in intel_mid_arch_setup()
x86/cpu/intel: Fix trivial typo in intel_tlb_table[]
Pull perf fixes from Ingo Molnar:
"Two kprobes fixes and a handful of tooling fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools: Make sparc64 arch point to sparc
perf symbols: Define EM_AARCH64 for older OSes
perf top: Fix SIGBUS on sparc64
perf tools: Fix probing for PERF_FLAG_FD_CLOEXEC flag
perf tools: Fix pthread_attr_setaffinity_np build error
perf tools: Define _GNU_SOURCE on pthread_attr_setaffinity_np feature check
perf bench: Fix order of arguments to memcpy_alloc_mem
kprobes/x86: Check for invalid ftrace location in __recover_probed_insn()
kprobes/x86: Use 5-byte NOP when the code might be modified by ftrace
Pull locking fix from Ingo Molnar:
"An rtmutex deadlock path fixlet"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/rtmutex: Set state back to running on error
The "usual" path is:
- rt_mutex_slowlock()
- set_current_state()
- task_blocks_on_rt_mutex() (ret 0)
- __rt_mutex_slowlock()
- sleep or not but do return with __set_current_state(TASK_RUNNING)
- back to caller.
In the early error case where task_blocks_on_rt_mutex() return
-EDEADLK we never change the task's state back to RUNNING. I
assume this is intended. Without this change after ww_mutex
using rt_mutex the selftest passes but later I get plenty of:
| bad: scheduling from the idle thread!
backtraces.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: afffc6c180 ("locking/rtmutex: Optimize setting task running after being blocked")
Link: http://lkml.kernel.org/r/1425056229-22326-4-git-send-email-bigeasy@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The PHY IRQ line is connected to external IRQ8, not IRQ0. Fix DT
accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Pull drm fixes from Dave Airlie:
"Just general fixes: radeon, i915, atmel, tegra, amdkfd and one core
fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (28 commits)
drm: atmel-hlcdc: remove clock polarity from crtc driver
drm/radeon: only enable DP audio if the monitor supports it
drm/radeon: fix atom aux payload size check for writes (v2)
drm/radeon: fix 1 RB harvest config setup for TN/RL
drm/radeon: enable SRBM timeout interrupt on EG/NI
drm/radeon: enable SRBM timeout interrupt on SI
drm/radeon: enable SRBM timeout interrupt on CIK v2
drm/radeon: dump full IB if we hit a packet error
drm/radeon: disable mclk switching with 120hz+ monitors
drm/radeon: use drm_mode_vrefresh() rather than mode->vrefresh
drm/radeon: enable native backlight control on old macs
drm/i915: Fix frontbuffer false positve.
drm/i915: Align initial plane backing objects correctly
drm/i915: avoid processing spurious/shared interrupts in low-power states
drm/i915: Check obj->vma_list under the struct_mutex
drm/i915: Fix a use after free, and unbalanced refcounting
drm: atmel-hlcdc: remove useless pm_runtime_put_sync in probe
drm: atmel-hlcdc: reset layer A2Q and UPDATE bits when disabling it
drm: Fix deadlock due to getconnector locking changes
drm/i915: Dell Chromebook 11 has PWM backlight
...
Pull block layer fixes from Jens Axboe:
"Two smaller fixes for this cycle:
- A fixup from Keith so that NVMe compiles without BLK_INTEGRITY,
basically just moving the code around appropriately.
- A fixup for shm, fixing an oops in shmem_mapping() for mapping with
no inode. From Sasha"
[ The shmem fix doesn't look block-layer-related, but fixes a bug that
happened due to the backing_dev_info removal.. - Linus ]
* 'for-linus' of git://git.kernel.dk/linux-block:
mm: shmem: check for mapping owner before dereferencing
NVMe: Fix for BLK_DEV_INTEGRITY not set
This update contains:
o ensure quota type is reset in on-disk dquots
o fix missing partial EOF block data flush on truncate extension
o fix transaction leak in error handling for new pnfs block layout
support
o add missing target_ip check to RENAME_EXCHANGE
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Merge tag 'xfs-for-linus-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs fixes from Dave Chinner:
"These are fixes for regressions/bugs introduced in the 4.0 merge cycle
and problems discovered during the merge window that need to be pushed
back to stable kernels ASAP.
This contains:
- ensure quota type is reset in on-disk dquots
- fix missing partial EOF block data flush on truncate extension
- fix transaction leak in error handling for new pnfs block layout
support
- add missing target_ip check to RENAME_EXCHANGE"
* tag 'xfs-for-linus-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: cancel failed transaction in xfs_fs_commit_blocks()
xfs: Ensure we have target_ip for RENAME_EXCHANGE
xfs: ensure truncate forces zeroed blocks to disk
xfs: Fix quota type in quota structures when reusing quota file
Core mm expects __PAGETABLE_{PUD,PMD}_FOLDED to be defined if these page
table levels folded. Usually, these defines are provided by
<asm-generic/pgtable-nopmd.h> and <asm-generic/pgtable-nopud.h>.
But some architectures fold page table levels in a custom way. They
need to define these macros themself. This patch adds missing defines.
The patch fixes mm->nr_pmds underflow and eliminates dead __pmd_alloc()
and __pud_alloc() on architectures without these page table levels.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Historically, !__GFP_FS allocations were not allowed to invoke the OOM
killer once reclaim had failed, but nevertheless kept looping in the
allocator.
Commit 9879de7373 ("mm: page_alloc: embed OOM killing naturally into
allocation slowpath"), which should have been a simple cleanup patch,
accidentally changed the behavior to aborting the allocation at that
point. This creates problems with filesystem callers (?) that currently
rely on the allocator waiting for other tasks to intervene.
Revert the behavior as it shouldn't have been changed as part of a
cleanup patch.
Fixes: 9879de7373 ("mm: page_alloc: embed OOM killing naturally into allocation slowpath")
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Dave Chinner <david@fromorbit.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: <stable@vger.kernel.org> [3.19.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There's a uname workaround for broken userspace which can't handle kernel
versions of 3.x. Update it for 4.x.
Signed-off-by: Jon DeVree <nuxi@vault24.org>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The memcg control knobs indicate the highest possible value using the
symbolic name "infinity", which is long and awkward to type.
Switch to the string "max", which is just as descriptive but shorter and
sweeter.
This changes a user interface, so do it before the release and before
the development flag is dropped from the default hierarchy.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
max_used_pages is defined as atomic_long_t so we need to use unsigned
long to keep temporary value for it rather than int which is smaller
than unsigned long in a 64 bit system.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a conditional statement checking for NULL in both
ds1685_rtc_sysfs_time_regs_show and ds1685_rtc_sysfs_time_regs_store
that was using a logical AND when it should be using a logical OR so
that we fail out of the function properly if the condition ever
evaluates to true.
Fixes: aaaf5fbf56 ("rtc: add driver for DS1685 family of real time clocks")
Signed-off-by: Joshua Kinard <kumba@gentoo.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Each inode of nilfs2 stores a root node of a b-tree, and it turned out to
have a memory overrun issue:
Each b-tree node of nilfs2 stores a set of key-value pairs and the number
of them (in "bn_nchildren" member of nilfs_btree_node struct), as well as
a few other "bn_*" members.
Since the value of "bn_nchildren" is used for operations on the key-values
within the b-tree node, it can cause memory access overrun if a large
number is incorrectly set to "bn_nchildren".
For instance, nilfs_btree_node_lookup() function determines the range of
binary search with it, and too large "bn_nchildren" leads
nilfs_btree_node_get_key() in that function to overrun.
As for intermediate b-tree nodes, this is prevented by a sanity check
performed when each node is read from a drive, however, no sanity check
has been done for root nodes stored in inodes.
This patch fixes the issue by adding missing sanity check against b-tree
root nodes so that it's called when on-memory inodes are read from ifile,
inode metadata file.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This got lost during the initial merge process: Python requires an
__init__.py script, even if empty, in order to accept a directory as
package. Add it, this time as a non-empty file.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/rtc/rtc-ds1685.c: In function `ds1685_rtc_read_alarm':
drivers/rtc/rtc-ds1685.c:402: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:409: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:416: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c: In function `ds1685_rtc_set_alarm':
drivers/rtc/rtc-ds1685.c:475: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:478: warning: comparison is always true due to limited range of data type
drivers/rtc/rtc-ds1685.c:481: warning: comparison is always true due to limited range of data type
u8 cannot contain a value larger than 0xff, hence drop the checks.
Wrapping the checks in unlikely() indicated some sense of humor, though ;-)
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
