It would seem like model 70h is behaving in the same way as model 30h,
so let's just add the new F3 PCI ID to the list of compatible devices.
Unlike previous Ryzen/Threadripper, Ryzen gen 3 processors do not need
temperature offsets anymore. This has been reported in the press and
verified on my Ryzen 3700X by checking that the idle temperature
reported by k10temp is matching the temperature reported by the
firmware.
Vicki Pfau sent an identical patch after I checked that no-one had
written this patch. I would have been happy about dropping my patch but
unlike for his patch series, I had already Cc:ed the x86 people and
they already reviewed the changes. Since Vicki has not answered to
any email after his initial series, let's assume she is on vacation
and let's avoid duplication of reviews from the maintainers and merge
my series. To acknowledge Vicki's anteriority, I added her S-o-b to
the patch.
v2, suggested by Guenter Roeck and Brian Woods:
- rename from 71h to 70h
Signed-off-by: Vicki Pfau <vi@endrift.com>
Signed-off-by: Marcel Bocu <marcel.p.bocu@gmail.com>
Tested-by: Marcel Bocu <marcel.p.bocu@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: "Woods, Brian" <Brian.Woods@amd.com>
Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-hwmon@vger.kernel.org
Link: https://lore.kernel.org/r/20190722174653.2391-1-marcel.p.bocu@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The AMD Ryzen gen 3 processors came with a different PCI IDs for the
function 3 & 4 which are used to access the SMN interface. The root
PCI address however remained at the same address as the model 30h.
Adding the F3/F4 PCI IDs respectively to the misc and link ids appear
to be sufficient for k10temp, so let's add them and follow up on the
patch if other functions need more tweaking.
Vicki Pfau sent an identical patch after I checked that no-one had
written this patch. I would have been happy about dropping my patch but
unlike for his patch series, I had already Cc:ed the x86 people and
they already reviewed the changes. Since Vicki has not answered to
any email after his initial series, let's assume she is on vacation
and let's avoid duplication of reviews from the maintainers and merge
my series. To acknowledge Vicki's anteriority, I added her S-o-b to
the patch.
v2, suggested by Guenter Roeck and Brian Woods:
- rename from 71h to 70h
Signed-off-by: Vicki Pfau <vi@endrift.com>
Signed-off-by: Marcel Bocu <marcel.p.bocu@gmail.com>
Tested-by: Marcel Bocu <marcel.p.bocu@gmail.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Brian Woods <brian.woods@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_ids.h
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: "Woods, Brian" <Brian.Woods@amd.com>
Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-hwmon@vger.kernel.org
Link: https://lore.kernel.org/r/20190722174510.2179-1-marcel.p.bocu@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Removes:
- hwmon_dev from k8temp_data struct, as that is now passed
to callbacks, anyway.
- other k8temp_data struct fields, too.
- k8temp_update_device()
Also reduces binary size:
text data bss dec hex filename
4139 1448 0 5587 15d3 drivers/hwmon/k8temp.ko.bak
3103 1220 0 4323 10e3 drivers/hwmon/k8temp.ko
Signed-off-by: Robert Karszniewicz <avoidr@firemail.cc>
Signed-off-by: Robert Karszniewicz <avoidr@riseup.net>
Link: https://lore.kernel.org/r/20190721120051.28064-1-avoidr@riseup.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
There is a typo in MAX37185_NUM_FAN_PAGES. To be consistent, it should be
MAX31785_NUM_FAN_PAGES (1 and 7 switched).
At line 24, we already have:
#define MAX31785_NR_FAN_PAGES 6
and MAX37185_NUM_FAN_PAGES seems to be unused.
It is likely that it is only a typo and/or a left-over.
So, axe it.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20190721101553.20911-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
A driver for ADS1015 with more functionality is available in the iio
subsystem.
Remove the hwmon driver as duplicate. If the chip is used for hardware
monitoring, the iio->hwmon bridge should be used.
Cc: Dirk Eibach <eibach@gdsys.de>
Link: https://lore.kernel.org/r/1562004758-13025-1-git-send-email-linux@roeck-us.net
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
In coretemp_init(), 'zone_devices' is allocated through kcalloc().
However, it is not deallocated in the following execution if
platform_driver_register() fails, leading to a memory leak. To fix this
issue, introduce the 'outzone' label to free 'zone_devices' before
returning the error.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Link: https://lore.kernel.org/r/1566248402-6538-1-git-send-email-wenwen@cs.uga.edu
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Writes into limit registers fail if the temperature written is negative.
The regmap write operation checks the value range, regmap_write accepts
an unsigned int as parameter, and the temperature value passed to
regmap_write is kept in a variable declared as long. Negative values
are converted large unsigned integers, which fails the range check.
Fix by type casting the temperature to u16 when calling regmap_write().
Cc: Iker Perez del Palomar Sustatxa <iker.perez@codethink.co.uk>
Fixes: e65365fed8 ("hwmon: (lm75) Convert to use regmap")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Build bot reports the following build issue after commit 9091373ab7
("gpio: remove less important #ifdef around declarations):
In file included from drivers/hwmon/pmbus/ucd9000.c:19:0:
>> include/linux/gpio/driver.h:576:1: error: redefinition of 'gpiochip_add_pin_range'
gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
^~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/hwmon/pmbus/ucd9000.c:18:0:
include/linux/gpio.h:245:1: note: previous definition of 'gpiochip_add_pin_range' was here
gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
^~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/hwmon/pmbus/ucd9000.c:19:0:
>> include/linux/gpio/driver.h:583:1: error: redefinition of 'gpiochip_add_pingroup_range'
gpiochip_add_pingroup_range(struct gpio_chip *chip,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/hwmon/pmbus/ucd9000.c:18:0:
include/linux/gpio.h:254:1: note: previous definition of 'gpiochip_add_pingroup_range' was here
gpiochip_add_pingroup_range(struct gpio_chip *chip,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/hwmon/pmbus/ucd9000.c:19:0:
>> include/linux/gpio/driver.h:591:1: error: redefinition of 'gpiochip_remove_pin_ranges'
gpiochip_remove_pin_ranges(struct gpio_chip *chip)
^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/hwmon/pmbus/ucd9000.c:18:0:
include/linux/gpio.h:263:1: note: previous definition of 'gpiochip_remove_pin_ranges' was here
gpiochip_remove_pin_ranges(struct gpio_chip *chip)
This is caused by conflicting defines from linux/gpio.h and
linux/gpio/driver.h. Drivers should not include both the legacy and
the new API headers. This driver doesn't even use linux/gpio.h so
remove it.
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20190808080144.6183-1-brgl@bgdev.pl
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
UBIFS:
- Don't block too long in writeback_inodes_sb()
- Fix for a possible overrun of the log head
- Fix double unlock in orphan_delete()
JFFS2:
- Remove C++ style from UAPI header and unbreak picky toolchains
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Merge tag 'for-linus-5.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull UBIFS and JFFS2 fixes from Richard Weinberger:
"UBIFS:
- Don't block too long in writeback_inodes_sb()
- Fix for a possible overrun of the log head
- Fix double unlock in orphan_delete()
JFFS2:
- Remove C++ style from UAPI header and unbreak picky toolchains"
* tag 'for-linus-5.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
ubifs: Limit the number of pages in shrink_liability
ubifs: Correctly initialize c->min_log_bytes
ubifs: Fix double unlock around orphan_delete()
jffs2: Remove C++ style comments from uapi header
Pull x86 fixes from Thomas Gleixner:
"A few fixes for x86:
- Fix a boot regression caused by the recent bootparam sanitizing
change, which escaped the attention of all people who reviewed that
code.
- Address a boot problem on machines with broken E820 tables caused
by an underflow which ended up placing the trampoline start at
physical address 0.
- Handle machines which do not advertise a legacy timer of any form,
but need calibration of the local APIC timer gracefully by making
the calibration routine independent from the tick interrupt. Marked
for stable as well as there seems to be quite some new laptops
rolled out which expose this.
- Clear the RDRAND CPUID bit on AMD family 15h and 16h CPUs which are
affected by broken firmware which does not initialize RDRAND
correctly after resume. Add a command line parameter to override
this for machine which either do not use suspend/resume or have a
fixed BIOS. Unfortunately there is no way to detect this on boot,
so the only safe decision is to turn it off by default.
- Prevent RFLAGS from being clobbers in CALL_NOSPEC on 32bit which
caused fast KVM instruction emulation to break.
- Explain the Intel CPU model naming convention so that the repeating
discussions come to an end"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/retpoline: Don't clobber RFLAGS during CALL_NOSPEC on i386
x86/boot: Fix boot regression caused by bootparam sanitizing
x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h
x86/boot/compressed/64: Fix boot on machines with broken E820 table
x86/apic: Handle missing global clockevent gracefully
x86/cpu: Explain Intel model naming convention
Pull timekeeping fix from Thomas Gleixner:
"A single fix for a regression caused by the generic VDSO
implementation where a math overflow causes CLOCK_BOOTTIME to become a
random number generator"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timekeeping/vsyscall: Prevent math overflow in BOOTTIME update
Pull scheduler fix from Thomas Gleixner:
"Handle the worker management in situations where a task is scheduled
out on a PI lock contention correctly and schedule a new worker if
possible"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Schedule new worker even if PI-blocked
Pull perf fixes from Thomas Gleixner:
"Two small fixes for kprobes and perf:
- Prevent a deadlock in kprobe_optimizer() causes by reverse lock
ordering
- Fix a comment typo"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kprobes: Fix potential deadlock in kprobe_optimizer()
perf/x86: Fix typo in comment
Pull irq fix from Thomas Gleixner:
"A single fix for a imbalanced kobject operation in the irq decriptor
code which was unearthed by the new warnings in the kobject code"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Properly pair kobject_del() with kobject_add()
Mergr misc fixes from Andrew Morton:
"11 fixes"
Mostly VM fixes, one psi polling fix, and one parisc build fix.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/kasan: fix false positive invalid-free reports with CONFIG_KASAN_SW_TAGS=y
mm/zsmalloc.c: fix race condition in zs_destroy_pool
mm/zsmalloc.c: migration can leave pages in ZS_EMPTY indefinitely
mm, page_owner: handle THP splits correctly
userfaultfd_release: always remove uffd flags and clear vm_userfaultfd_ctx
psi: get poll_work to run when calling poll syscall next time
mm: memcontrol: flush percpu vmevents before releasing memcg
mm: memcontrol: flush percpu vmstats before releasing memcg
parisc: fix compilation errrors
mm, page_alloc: move_freepages should not examine struct page of reserved memory
mm/z3fold.c: fix race between migration and destruction
Two fixes for regressions in this merge window:
- select the Kconfig symbols for the noncoherent dma arch helpers
on arm if swiotlb is selected, not just for LPAE to not break then
Xen build, that uses swiotlb indirectly through swiotlb-xen
- fix the page allocator fallback in dma_alloc_contiguous if the CMA
allocation fails
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Merge tag 'dma-mapping-5.3-5' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
"Two fixes for regressions in this merge window:
- select the Kconfig symbols for the noncoherent dma arch helpers on
arm if swiotlb is selected, not just for LPAE to not break then Xen
build, that uses swiotlb indirectly through swiotlb-xen
- fix the page allocator fallback in dma_alloc_contiguous if the CMA
allocation fails"
* tag 'dma-mapping-5.3-5' of git://git.infradead.org/users/hch/dma-mapping:
dma-direct: fix zone selection after an unaddressable CMA allocation
arm: select the dma-noncoherent symbols for all swiotlb builds
The code like this:
ptr = kmalloc(size, GFP_KERNEL);
page = virt_to_page(ptr);
offset = offset_in_page(ptr);
kfree(page_address(page) + offset);
may produce false-positive invalid-free reports on the kernel with
CONFIG_KASAN_SW_TAGS=y.
In the example above we lose the original tag assigned to 'ptr', so
kfree() gets the pointer with 0xFF tag. In kfree() we check that 0xFF
tag is different from the tag in shadow hence print false report.
Instead of just comparing tags, do the following:
1) Check that shadow doesn't contain KASAN_TAG_INVALID. Otherwise it's
double-free and it doesn't matter what tag the pointer have.
2) If pointer tag is different from 0xFF, make sure that tag in the
shadow is the same as in the pointer.
Link: http://lkml.kernel.org/r/20190819172540.19581-1-aryabinin@virtuozzo.com
Fixes: 7f94ffbc4c ("kasan: add hooks implementation for tag-based mode")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reported-by: Walter Wu <walter-zh.wu@mediatek.com>
Reported-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In zs_destroy_pool() we call flush_work(&pool->free_work). However, we
have no guarantee that migration isn't happening in the background at
that time.
Since migration can't directly free pages, it relies on free_work being
scheduled to free the pages. But there's nothing preventing an
in-progress migrate from queuing the work *after*
zs_unregister_migration() has called flush_work(). Which would mean
pages still pointing at the inode when we free it.
Since we know at destroy time all objects should be free, no new
migrations can come in (since zs_page_isolate() fails for fully-free
zspages). This means it is sufficient to track a "# isolated zspages"
count by class, and have the destroy logic ensure all such pages have
drained before proceeding. Keeping that state under the class spinlock
keeps the logic straightforward.
In this case a memory leak could lead to an eventual crash if compaction
hits the leaked page. This crash would only occur if people are
changing their zswap backend at runtime (which eventually starts
destruction).
Link: http://lkml.kernel.org/r/20190809181751.219326-2-henryburns@google.com
Fixes: 48b4800a1c ("zsmalloc: page migration support")
Signed-off-by: Henry Burns <henryburns@google.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Henry Burns <henrywolfeburns@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Jonathan Adams <jwadams@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In zs_page_migrate() we call putback_zspage() after we have finished
migrating all pages in this zspage. However, the return value is
ignored. If a zs_free() races in between zs_page_isolate() and
zs_page_migrate(), freeing the last object in the zspage,
putback_zspage() will leave the page in ZS_EMPTY for potentially an
unbounded amount of time.
To fix this, we need to do the same thing as zs_page_putback() does:
schedule free_work to occur.
To avoid duplicated code, move the sequence to a new
putback_zspage_deferred() function which both zs_page_migrate() and
zs_page_putback() call.
Link: http://lkml.kernel.org/r/20190809181751.219326-1-henryburns@google.com
Fixes: 48b4800a1c ("zsmalloc: page migration support")
Signed-off-by: Henry Burns <henryburns@google.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Henry Burns <henrywolfeburns@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Jonathan Adams <jwadams@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
THP splitting path is missing the split_page_owner() call that
split_page() has.
As a result, split THP pages are wrongly reported in the page_owner file
as order-9 pages. Furthermore when the former head page is freed, the
remaining former tail pages are not listed in the page_owner file at
all. This patch fixes that by adding the split_page_owner() call into
__split_huge_page().
Link: http://lkml.kernel.org/r/20190820131828.22684-2-vbabka@suse.cz
Fixes: a9627bc5e3 ("mm/page_owner: introduce split_page_owner and replace manual handling")
Reported-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
userfaultfd_release() should clear vm_flags/vm_userfaultfd_ctx even if
mm->core_state != NULL.
Otherwise a page fault can see userfaultfd_missing() == T and use an
already freed userfaultfd_ctx.
Link: http://lkml.kernel.org/r/20190820160237.GB4983@redhat.com
Fixes: 04f5866e41 ("coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping")
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Tested-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Jann Horn <jannh@google.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Only when calling the poll syscall the first time can user receive
POLLPRI correctly. After that, user always fails to acquire the event
signal.
Reproduce case:
1. Get the monitor code in Documentation/accounting/psi.txt
2. Run it, and wait for the event triggered.
3. Kill and restart the process.
The question is why we can end up with poll_scheduled = 1 but the work
not running (which would reset it to 0). And the answer is because the
scheduling side sees group->poll_kworker under RCU protection and then
schedules it, but here we cancel the work and destroy the worker. The
cancel needs to pair with resetting the poll_scheduled flag.
Link: http://lkml.kernel.org/r/1566357985-97781-1-git-send-email-joseph.qi@linux.alibaba.com
Signed-off-by: Jason Xing <kerneljasonxing@linux.alibaba.com>
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reviewed-by: Caspar Zhang <caspar@linux.alibaba.com>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Similar to vmstats, percpu caching of local vmevents leads to an
accumulation of errors on non-leaf levels. This happens because some
leftovers may remain in percpu caches, so that they are never propagated
up by the cgroup tree and just disappear into nonexistence with on
releasing of the memory cgroup.
To fix this issue let's accumulate and propagate percpu vmevents values
before releasing the memory cgroup similar to what we're doing with
vmstats.
Since on cpu hotplug we do flush percpu vmstats anyway, we can iterate
only over online cpus.
Link: http://lkml.kernel.org/r/20190819202338.363363-4-guro@fb.com
Fixes: 42a3003535 ("mm: memcontrol: fix recursive statistics correctness & scalabilty")
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Percpu caching of local vmstats with the conditional propagation by the
cgroup tree leads to an accumulation of errors on non-leaf levels.
Let's imagine two nested memory cgroups A and A/B. Say, a process
belonging to A/B allocates 100 pagecache pages on the CPU 0. The percpu
cache will spill 3 times, so that 32*3=96 pages will be accounted to A/B
and A atomic vmstat counters, 4 pages will remain in the percpu cache.
Imagine A/B is nearby memory.max, so that every following allocation
triggers a direct reclaim on the local CPU. Say, each such attempt will
free 16 pages on a new cpu. That means every percpu cache will have -16
pages, except the first one, which will have 4 - 16 = -12. A/B and A
atomic counters will not be touched at all.
Now a user removes A/B. All percpu caches are freed and corresponding
vmstat numbers are forgotten. A has 96 pages more than expected.
As memory cgroups are created and destroyed, errors do accumulate. Even
1-2 pages differences can accumulate into large numbers.
To fix this issue let's accumulate and propagate percpu vmstat values
before releasing the memory cgroup. At this point these numbers are
stable and cannot be changed.
Since on cpu hotplug we do flush percpu vmstats anyway, we can iterate
only over online cpus.
Link: http://lkml.kernel.org/r/20190819202338.363363-2-guro@fb.com
Fixes: 42a3003535 ("mm: memcontrol: fix recursive statistics correctness & scalabilty")
Signed-off-by: Roman Gushchin <guro@fb.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 0cfaee2af3 ("include/asm-generic/5level-fixup.h: fix variable
'p4d' set but not used") converted a few functions from macros to static
inline, which causes parisc to complain,
In file included from include/asm-generic/4level-fixup.h:38:0,
from arch/parisc/include/asm/pgtable.h:5,
from arch/parisc/include/asm/io.h:6,
from include/linux/io.h:13,
from sound/core/memory.c:9:
include/asm-generic/5level-fixup.h:14:18: error: unknown type name 'pgd_t'; did you mean 'pid_t'?
#define p4d_t pgd_t
^
include/asm-generic/5level-fixup.h:24:28: note: in expansion of macro 'p4d_t'
static inline int p4d_none(p4d_t p4d)
^~~~~
It is because "4level-fixup.h" is included before "asm/page.h" where
"pgd_t" is defined.
Link: http://lkml.kernel.org/r/20190815205305.1382-1-cai@lca.pw
Fixes: 0cfaee2af3 ("include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used")
Signed-off-by: Qian Cai <cai@lca.pw>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
After commit 907ec5fca3 ("mm: zero remaining unavailable struct
pages"), struct page of reserved memory is zeroed. This causes
page->flags to be 0 and fixes issues related to reading
/proc/kpageflags, for example, of reserved memory.
The VM_BUG_ON() in move_freepages_block(), however, assumes that
page_zone() is meaningful even for reserved memory. That assumption is
no longer true after the aforementioned commit.
There's no reason why move_freepages_block() should be testing the
legitimacy of page_zone() for reserved memory; its scope is limited only
to pages on the zone's freelist.
Note that pfn_valid() can be true for reserved memory: there is a
backing struct page. The check for page_to_nid(page) is also buggy but
reserved memory normally only appears on node 0 so the zeroing doesn't
affect this.
Move the debug checks to after verifying PageBuddy is true. This
isolates the scope of the checks to only be for buddy pages which are on
the zone's freelist which move_freepages_block() is operating on. In
this case, an incorrect node or zone is a bug worthy of being warned
about (and the examination of struct page is acceptable bcause this
memory is not reserved).
Why does move_freepages_block() gets called on reserved memory? It's
simply math after finding a valid free page from the per-zone free area
to use as fallback. We find the beginning and end of the pageblock of
the valid page and that can bring us into memory that was reserved per
the e820. pfn_valid() is still true (it's backed by a struct page), but
since it's zero'd we shouldn't make any inferences here about comparing
its node or zone. The current node check just happens to succeed most
of the time by luck because reserved memory typically appears on node 0.
The fix here is to validate that we actually have buddy pages before
testing if there's any type of zone or node strangeness going on.
We noticed it almost immediately after bringing 907ec5fca3 in on
CONFIG_DEBUG_VM builds. It depends on finding specific free pages in
the per-zone free area where the math in move_freepages() will bring the
start or end pfn into reserved memory and wanting to claim that entire
pageblock as a new migratetype. So the path will be rare, require
CONFIG_DEBUG_VM, and require fallback to a different migratetype.
Some struct pages were already zeroed from reserve pages before
907ec5fca3c so it theoretically could trigger before this commit. I
think it's rare enough under a config option that most people don't run
that others may not have noticed. I wouldn't argue against a stable tag
and the backport should be easy enough, but probably wouldn't single out
a commit that this is fixing.
Mel said:
: The overhead of the debugging check is higher with this patch although
: it'll only affect debug builds and the path is not particularly hot.
: If this was a concern, I think it would be reasonable to simply remove
: the debugging check as the zone boundaries are checked in
: move_freepages_block and we never expect a zone/node to be smaller than
: a pageblock and stuck in the middle of another zone.
Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1908122036560.10779@chino.kir.corp.google.com
Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Pavel Tatashin <pavel.tatashin@microsoft.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In z3fold_destroy_pool() we call destroy_workqueue(&pool->compact_wq).
However, we have no guarantee that migration isn't happening in the
background at that time.
Migration directly calls queue_work_on(pool->compact_wq), if destruction
wins that race we are using a destroyed workqueue.
Link: http://lkml.kernel.org/r/20190809213828.202833-1-henryburns@google.com
Signed-off-by: Henry Burns <henryburns@google.com>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Jonathan Adams <jwadams@google.com>
Cc: Henry Burns <henrywolfeburns@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix not reporting open drain/source lines to userspace as "input"
- Fix a minor build error found in randconfigs
- Fix a chip select quirk on the Freescale SPI
- Fix the irqchip initialization semantic order to reflect what
it was using the old API
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Merge tag 'gpio-v5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here is a (hopefully last) set of GPIO fixes for the v5.3 kernel
cycle. Two are pretty core:
- Fix not reporting open drain/source lines to userspace as "input"
- Fix a minor build error found in randconfigs
- Fix a chip select quirk on the Freescale SPI
- Fix the irqchip initialization semantic order to reflect what it
was using the old API"
* tag 'gpio-v5.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Fix irqchip initialization order
gpio: of: fix Freescale SPI CS quirk handling
gpio: Fix build error of function redefinition
gpiolib: never report open-drain/source lines as 'input' to user-space
- Fix of a memory leak (and related cleanups) in the hyper-v keyboard
driver by Dexuan Cui.
- Code cleanups for hyper-v clocksource driver during the merge window
by Dexuan Cui.
- Fix for a false positive warning in the userspace hyper-v KVP store by
Vitaly Kuznetsov.
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Merge tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull Hyper-V fixes from Sasha Levin:
- Fix for panics and network failures on PAE guests by Dexuan Cui.
- Fix of a memory leak (and related cleanups) in the hyper-v keyboard
driver by Dexuan Cui.
- Code cleanups for hyper-v clocksource driver during the merge window
by Dexuan Cui.
- Fix for a false positive warning in the userspace hyper-v KVP store
by Vitaly Kuznetsov.
* tag 'hyperv-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
Drivers: hv: vmbus: Fix virt_to_hvpfn() for X86_PAE
Tools: hv: kvp: eliminate 'may be used uninitialized' warning
Input: hyperv-keyboard: Use in-place iterator API in the channel callback
Drivers: hv: vmbus: Remove the unused "tsc_page" from struct hv_context
- Two KVM fixes for MMIO emulation and UBSAN
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Two KVM/arm fixes for MMIO emulation and UBSAN.
Unusually, we're routing them via the arm64 tree as per Paolo's
request on the list:
https://lore.kernel.org/kvm/21ae69a2-2546-29d0-bff6-2ea825e3d968@redhat.com/
We don't actually have any other arm64 fixes pending at the moment
(touch wood), so I've pulled from Marc, written a merge commit, tagged
the result and run it through my build/boot/bisect scripts"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
KVM: arm/arm64: VGIC: Properly initialise private IRQ affinity
KVM: arm/arm64: Only skip MMIO insn once
Four fixes, three for edge conditions which don't occur very often.
The lpfc fix mitigates memory exhaustion for some high CPU systems.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four fixes, three for edge conditions which don't occur very often.
The lpfc fix mitigates memory exhaustion for some high CPU systems"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: lpfc: Mitigate high memory pre-allocation by SCSI-MQ
scsi: ufs: Fix NULL pointer dereference in ufshcd_config_vreg_hpm()
scsi: target: tcmu: avoid use-after-free after command timeout
scsi: qla2xxx: Fix gnl.l memory leak on adapter init failure
- Fix a forgotten inode unlock when chown/chgrp fail due to quota.
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Merge tag 'xfs-5.3-fixes-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Darrick Wong:
"A single patch that fixes a xfs lockup problem when a chown/chgrp
operation fails due to running out of quota. It has survived the usual
xfstests runs and merges cleanly with this morning's master:
- Fix a forgotten inode unlock when chown/chgrp fail due to quota"
* tag 'xfs-5.3-fixes-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix missing ILOCK unlock when xfs_setattr_nonsize fails due to EDQUOT
mediatek:
- fix build in some cases
nouveau:
- fix hang with i2c and mst docks
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Merge tag 'drm-fixes-2019-08-24' of git://anongit.freedesktop.org/drm/drm
Pull more drm fixes from Dave Airlie:
"Although the tree built for me fine on arm here, it appears either
header cleanups in next or some kconfig combo it breaks, so this
contains a fix to mediatek to include dma-mapping.h explicitly.
There was also one nouveau fix that came in late that I was going to
leave until next week, but since I was sending this I thought it may
as well be in here:
mediatek:
- fix build in some cases
nouveau:
- fix hang with i2c and mst docks"
* tag 'drm-fixes-2019-08-24' of git://anongit.freedesktop.org/drm/drm:
drm/mediatek: include dma-mapping header
drm/nouveau: Don't retry infinitely when receiving no data on i2c over AUX
- Don't overskip instructions on MMIO emulation
- Fix UBSAN splat when initializing PPI priorities
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Merge tag 'kvmarm-fixes-for-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm/fixes
Pull KVM/arm fixes from Marc Zyngier as per Paulo's request at:
https://lkml.kernel.org/r/21ae69a2-2546-29d0-bff6-2ea825e3d968@redhat.com
"One (hopefully last) set of fixes for KVM/arm for 5.3: an embarassing
MMIO emulation regression, and a UBSAN splat. Oh well...
- Don't overskip instructions on MMIO emulation
- Fix UBSAN splat when initializing PPI priorities"
* tag 'kvmarm-fixes-for-5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm:
KVM: arm/arm64: VGIC: Properly initialise private IRQ affinity
KVM: arm/arm64: Only skip MMIO insn once
Although it builds fine here in my arm cross compile, it seems
either via some other patches in -next or some Kconfig combination,
this fails to build for everyone.
Include linux/dma-mapping.h should fix it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
- Fix siw buffer mapping issue
- Fix siw 32/64 casting issues
- Fix a KASAN access issue in bnxt_re
- Fix several memory leaks (hfi1, mlx4)
- Fix a NULL deref in cma_cleanup
- Fixes for UMR memory support in mlx5 (4 patch series)
- Fix namespace check for restrack
- Fixes for counter support
- Fixes for hfi1 TID processing (5 patch series)
- Fix potential NULL deref in siw
- Fix memory page calculations in mlx5
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Doug Ledford:
"No beating around the bush: this is a monster pull request for an -rc5
kernel. Intel hit me with a series of fixes for TID processing.
Mellanox hit me with a series for their UMR memory support.
And we had one fix for siw that fixes the 32bit build warnings and
because of the number of casts that had to be changed to properly
silence the warnings, that one patch alone is a full 40% of the LOC of
this entire pull request. Given that this is the initial release
kernel for siw, I'm trying to fix anything in it that we can, so that
adds to the impetus to take fixes for it like this one.
I had to do a rebase early in the week. Jason had thought he put a
patch on the rc queue that he needed to be there so he could base some
work off of it, and it had actually not been placed there. So he asked
me (on Tuesday) to fix that up before pushing my wip branch to the
official rc branch. I did, and that's why the early patches look like
they were all committed at the same time on Tuesday. That bunch had
been in my queue prior.
The various patches all pass my test for being legitimate fixes and
not attempts to slide new features or development into a late rc.
Well, they were all fixes with the exception of a couple clean up
patches people wrote for making the fixes they also wrote better (like
a cleanup patch to move UMR checking into a function so that the
remaining UMR fix patches can reference that function), so I left
those in place too.
My apologies for the LOC count and the number of patches here, it's
just how the cards fell this cycle.
Summary:
- Fix siw buffer mapping issue
- Fix siw 32/64 casting issues
- Fix a KASAN access issue in bnxt_re
- Fix several memory leaks (hfi1, mlx4)
- Fix a NULL deref in cma_cleanup
- Fixes for UMR memory support in mlx5 (4 patch series)
- Fix namespace check for restrack
- Fixes for counter support
- Fixes for hfi1 TID processing (5 patch series)
- Fix potential NULL deref in siw
- Fix memory page calculations in mlx5"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (21 commits)
RDMA/siw: Fix 64/32bit pointer inconsistency
RDMA/siw: Fix SGL mapping issues
RDMA/bnxt_re: Fix stack-out-of-bounds in bnxt_qplib_rcfw_send_message
infiniband: hfi1: fix memory leaks
infiniband: hfi1: fix a memory leak bug
IB/mlx4: Fix memory leaks
RDMA/cma: fix null-ptr-deref Read in cma_cleanup
IB/mlx5: Block MR WR if UMR is not possible
IB/mlx5: Fix MR re-registration flow to use UMR properly
IB/mlx5: Report and handle ODP support properly
IB/mlx5: Consolidate use_umr checks into single function
RDMA/restrack: Rewrite PID namespace check to be reliable
RDMA/counters: Properly implement PID checks
IB/core: Fix NULL pointer dereference when bind QP to counter
IB/hfi1: Drop stale TID RDMA packets that cause TIDErr
IB/hfi1: Add additional checks when handling TID RDMA WRITE DATA packet
IB/hfi1: Add additional checks when handling TID RDMA READ RESP packet
IB/hfi1: Unsafe PSN checking for TID RDMA READ Resp packet
IB/hfi1: Drop stale TID RDMA packets
RDMA/siw: Fix potential NULL de-ref
...
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Merge tag 'for-linus-20190823' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Here's a set of fixes that should go into this release. This contains:
- Three minor fixes for NVMe.
- Three minor tweaks for the io_uring polling logic.
- Officially mark Song as the MD maintainer, after he's been filling
that role sucessfully for the last 6 months or so"
* tag 'for-linus-20190823' of git://git.kernel.dk/linux-block:
io_uring: add need_resched() check in inner poll loop
md: update MAINTAINERS info
io_uring: don't enter poll loop if we have CQEs pending
nvme: Add quirk for LiteON CL1 devices running FW 22301111
nvme: Fix cntlid validation when not using NVMEoF
nvme-multipath: fix possible I/O hang when paths are updated
io_uring: fix potential hang with polled IO
proper fix has been made to the block loopback driver.
- Fix DM kcopyd to wakeup so failed subjobs get completed.
- Various fixes to DM zoned target to address error handling, and other
small tweaks (SPDX license identifiers and fix typos).
- Fix DM integrity range locking race by tracking whether journal has
changed.
- Fix DM dust target to detect reads of badblocks beyond the first 512b
sector (applicable if blocksize is larger than 512b).
- Fix DM persistent-data issue in both the DM btree and DM
space-map-metadata interfaces.
- Fix out of bounds memory access with certain DM table configurations.
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Merge tag 'for-5.3/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Revert a DM bufio change from during the 5.3 merge window now that a
proper fix has been made to the block loopback driver.
- Fix DM kcopyd to wakeup so failed subjobs get completed.
- Various fixes to DM zoned target to address error handling, and other
small tweaks (SPDX license identifiers and fix typos).
- Fix DM integrity range locking race by tracking whether journal has
changed.
- Fix DM dust target to detect reads of badblocks beyond the first 512b
sector (applicable if blocksize is larger than 512b).
- Fix DM persistent-data issue in both the DM btree and DM
space-map-metadata interfaces.
- Fix out of bounds memory access with certain DM table configurations.
* tag 'for-5.3/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm table: fix invalid memory accesses with too high sector number
dm space map metadata: fix missing store of apply_bops() return value
dm btree: fix order of block initialization in btree_split_beneath
dm raid: add missing cleanup in raid_ctr()
dm zoned: fix potential NULL dereference in dmz_do_reclaim()
dm dust: use dust block size for badblocklist index
dm integrity: fix a crash due to BUG_ON in __journal_read_write()
dm zoned: fix a few typos
dm zoned: add SPDX license identifiers
dm zoned: properly handle backing device failure
dm zoned: improve error handling in i/o map code
dm zoned: improve error handling in reclaim
dm kcopyd: always complete failed jobs
Revert "dm bufio: fix deadlock with loop device"
- Fix missing compat ioctl handling for get/setlabel
- Fix missing ioctl pointer sanitization on s390
- Fix a page locking deadlock in the dedupe comparison code
- Fix inadequate locking in reflink code w.r.t. concurrent directio
- Fix broken error detection when breaking layouts
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Merge tag 'xfs-5.3-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
"Here are a few more bug fixes that trickled in since the last pull.
They've survived the usual xfstests runs and merge cleanly with this
morning's master.
I expect there to be one more pull request tomorrow for the fix to
that quota related inode unlock bug that we were reviewing last night,
but it will continue to soak in the testing machine for several more
hours.
- Fix missing compat ioctl handling for get/setlabel
- Fix missing ioctl pointer sanitization on s390
- Fix a page locking deadlock in the dedupe comparison code
- Fix inadequate locking in reflink code w.r.t. concurrent directio
- Fix broken error detection when breaking layouts"
* tag 'xfs-5.3-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
fs/xfs: Fix return code of xfs_break_leased_layouts()
xfs: fix reflink source file racing with directio writes
vfs: fix page locking deadlocks when deduping files
xfs: compat_ioctl: use compat_ptr()
xfs: fall back to native ioctls for unhandled compat ones
At the moment we initialise the target *mask* of a virtual IRQ to the
VCPU it belongs to, even though this mask is only defined for GICv2 and
quickly runs out of bits for many GICv3 guests.
This behaviour triggers an UBSAN complaint for more than 32 VCPUs:
------
[ 5659.462377] UBSAN: Undefined behaviour in virt/kvm/arm/vgic/vgic-init.c:223:21
[ 5659.471689] shift exponent 32 is too large for 32-bit type 'unsigned int'
------
Also for GICv3 guests the reporting of TARGET in the "vgic-state" debugfs
dump is wrong, due to this very same problem.
Because there is no requirement to create the VGIC device before the
VCPUs (and QEMU actually does it the other way round), we can't safely
initialise mpidr or targets in kvm_vgic_vcpu_init(). But since we touch
every private IRQ for each VCPU anyway later (in vgic_init()), we can
just move the initialisation of those fields into there, where we
definitely know the VGIC type.
On the way make sure we really have either a VGICv2 or a VGICv3 device,
since the existing code is just checking for "VGICv3 or not", silently
ignoring the uninitialised case.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reported-by: Dave Martin <dave.martin@arm.com>
Tested-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
an assert and a NULL pointer dereference) plus a small series from Luis
fixing instances of vfree() under spinlock.
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Merge tag 'ceph-for-5.3-rc6' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Three important fixes tagged for stable (an indefinite hang, a crash
on an assert and a NULL pointer dereference) plus a small series from
Luis fixing instances of vfree() under spinlock"
* tag 'ceph-for-5.3-rc6' of git://github.com/ceph/ceph-client:
libceph: fix PG split vs OSD (re)connect race
ceph: don't try fill file_lock on unsuccessful GETFILELOCK reply
ceph: clear page dirty before invalidate page
ceph: fix buffer free while holding i_ceph_lock in fill_inode()
ceph: fix buffer free while holding i_ceph_lock in __ceph_build_xattrs_blob()
ceph: fix buffer free while holding i_ceph_lock in __ceph_setxattr()
libceph: allow ceph_buffer_put() to receive a NULL ceph_buffer
rcar-du:
- LVDS dual-link mode fix
mediatek:
- of node refcount fix
- prime buffer import fix
- dma max seg fix
komeda:
- output polling fix
- abfc format fix
- memory-region DT fix
amdgpu:
- bpc display fix
- ioctl memory leak fix
- gfxoff fix
- smu warnings fix
i915:
- HDMI mode readout fix
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Merge tag 'drm-fixes-2019-08-23' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Live from the laundromat after my washing machine broke down, we have
the 5.3-rc6 fixes. Changelog is in the tag below, but nothing too
noteworthy in here:
rcar-du:
- LVDS dual-link mode fix
mediatek:
- of node refcount fix
- prime buffer import fix
- dma max seg fix
komeda:
- output polling fix
- abfc format fix
- memory-region DT fix
amdgpu:
- bpc display fix
- ioctl memory leak fix
- gfxoff fix
- smu warnings fix
i915:
- HDMI mode readout fix"
* tag 'drm-fixes-2019-08-23' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu/powerplay: silence a warning in smu_v11_0_setup_pptable
drm/amd/display: Calculate bpc based on max_requested_bpc
drm/amdgpu: prevent memory leaks in AMDGPU_CS ioctl
drm/amd/amdgpu: disable MMHUB PG for navi10
drm/amd/powerplay: remove duplicate macro smu_get_uclk_dpm_states in amdgpu_smu.h
drm/amd/powerplay: fix variable type errors in smu_v11_0_setup_pptable
drm/amdgpu/gfx9: update pg_flags after determining if gfx off is possible
drm/i915: Fix HW readout for crtc_clock in HDMI mode
drm/mediatek: mtk_drm_drv.c: Add of_node_put() before goto
drm: rcar_lvds: Fix dual link mode operations
drm/mediatek: set DMA max segment size
drm/mediatek: use correct device to import PRIME buffers
drm/omap: ensure we have a valid dma_mask
drm/komeda: Add support for 'memory-region' DT node property
drm/komeda: Adds internal bpp computing for arm afbc only format YU08 YU10
drm/komeda: Initialize and enable output polling on Komeda
