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ad61dfe590
29103 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Tao Huang
|
ad61dfe590 |
Merge tag 'ASB-2020-02-05_4.19' of https://android.googlesource.com/kernel/common
https://source.android.com/security/bulletin/2020-02-01
CVE-2020-0030
CVE-2019-11599
* tag 'ASB-2020-02-05_4.19': (4206 commits)
UPSTREAM: sched/fair/util_est: Implement faster ramp-up EWMA on utilization increases
ANDROID: Re-use SUGOV_RT_MAX_FREQ to control uclamp rt behavior
BACKPORT: sched/fair: Make EAS wakeup placement consider uclamp restrictions
BACKPORT: sched/fair: Make task_fits_capacity() consider uclamp restrictions
ANDROID: sched/core: Move SchedTune task API into UtilClamp wrappers
ANDROID: sched/core: Add a latency-sensitive flag to uclamp
ANDROID: sched/tune: Move SchedTune cpu API into UtilClamp wrappers
ANDROID: init: kconfig: Only allow sched tune if !uclamp
FROMGIT: sched/core: Fix size of rq::uclamp initialization
FROMGIT: sched/uclamp: Fix a bug in propagating uclamp value in new cgroups
FROMGIT: sched/uclamp: Rename uclamp_util_with() into uclamp_rq_util_with()
FROMGIT: sched/uclamp: Make uclamp util helpers use and return UL values
FROMGIT: sched/uclamp: Remove uclamp_util()
BACKPORT: sched/rt: Make RT capacity-aware
UPSTREAM: tools headers UAPI: Sync sched.h with the kernel
UPSTREAM: sched/uclamp: Fix overzealous type replacement
UPSTREAM: sched/uclamp: Fix incorrect condition
UPSTREAM: sched/core: Fix compilation error when cgroup not selected
UPSTREAM: sched/core: Fix uclamp ABI bug, clean up and robustify sched_read_attr() ABI logic and code
UPSTREAM: sched/uclamp: Always use 'enum uclamp_id' for clamp_id values
...
Conflicts:
drivers/char/random.c
drivers/devfreq/devfreq.c
drivers/gpu/drm/drm_fb_helper.c
drivers/media/i2c/ov2680.c
drivers/media/i2c/ov2685.c
drivers/media/i2c/ov5670.c
drivers/media/i2c/ov5695.c
drivers/media/usb/uvc/uvc_driver.c
drivers/mmc/host/cqhci.c
drivers/spi/spi-rockchip.c
drivers/usb/dwc2/params.c
drivers/usb/dwc3/debugfs.c
drivers/usb/dwc3/gadget.c
drivers/usb/serial/usb_wwan.c
include/linux/clk-provider.h
include/linux/mfd/rk808.h
kernel/cpu.c
sound/usb/quirks.c
- Export symbol mm_trace_rss_stat on mm/memory.c for GPU drivers.
- Fix sound/usb/pcm.c for SNDRV_PCM_TRIGGER_SUSPEND.
- Enable DEBUG_FS which is not selected by TRACING.
- Disable of_devlink which broken boot. of_devlink is enabled by commit
|
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Greg Kroah-Hartman
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1b44c9bd91 |
This is the 4.19.101 stable release
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Patrick Bellasi
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8b2fbd9076 |
UPSTREAM: sched/fair/util_est: Implement faster ramp-up EWMA on utilization increases
The estimated utilization for a task:
util_est = max(util_avg, est.enqueue, est.ewma)
is defined based on:
- util_avg: the PELT defined utilization
- est.enqueued: the util_avg at the end of the last activation
- est.ewma: a exponential moving average on the est.enqueued samples
According to this definition, when a task suddenly changes its bandwidth
requirements from small to big, the EWMA will need to collect multiple
samples before converging up to track the new big utilization.
This slow convergence towards bigger utilization values is not
aligned to the default scheduler behavior, which is to optimize for
performance. Moreover, the est.ewma component fails to compensate for
temporarely utilization drops which spans just few est.enqueued samples.
To let util_est do a better job in the scenario depicted above, change
its definition by making util_est directly follow upward motion and
only decay the est.ewma on downward.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@matbug.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Douglas Raillard <douglas.raillard@arm.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <qperret@google.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191023205630.14469-1-patrick.bellasi@matbug.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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Qais Yousef
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f503db1178 |
ANDROID: Re-use SUGOV_RT_MAX_FREQ to control uclamp rt behavior
By default uclamp RT tasks will use the max frequency, which is not the desired default behavior on mobile devices. Re-use the SUGOV_RT_MAX_FREQ sched_feat to control the default behavior. When SUGOV_RT_MAX_FREQ is NOT selected, the uclamp_min value of the RT tasks will be 0. Note, since now we use SUGOV_RT_MAX_FREQ to enforce the default max frequency for RT when uclamp is compiled in; the condition in schedutil_cpu_util() needs to be inverted so that max no longer unconditionally applied when uclamp is compiled in && SUGOV_RT_MAX_FREQ is true. This unconditional application means uclamp values are always ignored which is not what we want when uclamp is compiled in. Bug: 120440300 Signed-off-by: Qais Yousef <qais.yousef@arm.com> Change-Id: I3d36f1ebed6ef35a6299af32bbf4462d0353e783 Signed-off-by: Quentin Perret <qperret@google.com> |
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Valentin Schneider
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ecce1cf84a |
BACKPORT: sched/fair: Make EAS wakeup placement consider uclamp restrictions
task_fits_capacity() has just been made uclamp-aware, and
find_energy_efficient_cpu() needs to go through the same treatment.
Things are somewhat different here however - using the task max clamp isn't
sufficient. Consider the following setup:
The target runqueue, rq:
rq.cpu_capacity_orig = 512
rq.cfs.avg.util_avg = 200
rq.uclamp.max = 768 // the max p.uclamp.max of all enqueued p's is 768
The waking task, p (not yet enqueued on rq):
p.util_est = 600
p.uclamp.max = 100
Now, consider the following code which doesn't use the rq clamps:
util = uclamp_task_util(p);
// Does the task fit in the spare CPU capacity?
cpu = cpu_of(rq);
fits_capacity(util, cpu_capacity(cpu) - cpu_util(cpu))
This would lead to:
util = 100;
fits_capacity(100, 512 - 200)
fits_capacity() would return true. However, enqueuing p on that CPU *will*
cause it to become overutilized since rq clamp values are max-aggregated,
so we'd remain with
rq.uclamp.max = 768
which comes from the other tasks already enqueued on rq. Thus, we could
select a high enough frequency to reach beyond 0.8 * 512 utilization
(== overutilized) after enqueuing p on rq. What find_energy_efficient_cpu()
needs here is uclamp_rq_util_with() which lets us peek at the future
utilization landscape, including rq-wide uclamp values.
Make find_energy_efficient_cpu() use uclamp_rq_util_with() for its
fits_capacity() check. This is in line with what compute_energy() ends up
using for estimating utilization.
[QP: moved changes to select_cpu_candidates(), which is the equivalent
to the mainline path, and fix missing dependency on fits_capacity() by
using the open coded version]
Bug: 120440300
Tested-By: Dietmar Eggemann <dietmar.eggemann@arm.com>
Suggested-by: Quentin Perret <qperret@google.com>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191211113851.24241-6-valentin.schneider@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Valentin Schneider
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50262f741b |
BACKPORT: sched/fair: Make task_fits_capacity() consider uclamp restrictions
task_fits_capacity() drives CPU selection at wakeup time, and is also used
to detect misfit tasks. Right now it does so by comparing task_util_est()
with a CPU's capacity, but doesn't take into account uclamp restrictions.
There's a few interesting uses that can come out of doing this. For
instance, a low uclamp.max value could prevent certain tasks from being
flagged as misfit tasks, so they could merrily remain on low-capacity CPUs.
Similarly, a high uclamp.min value would steer tasks towards high capacity
CPUs at wakeup (and, should that fail, later steered via misfit balancing),
so such "boosted" tasks would favor CPUs of higher capacity.
Introduce uclamp_task_util() and make task_fits_capacity() use it.
[QP: fixed missing dependency on fits_capacity() by using the open coded
alternative]
Bug: 120440300
Tested-By: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Quentin Perret <qperret@google.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191211113851.24241-5-valentin.schneider@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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Patrick Bellasi
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f609a2239f |
ANDROID: sched/core: Move SchedTune task API into UtilClamp wrappers
The main SchedTune API calls realted to task tuning attributes are now wrapped by more generic and mainlinish UtilClamp calls. The new APIs are: - uclamp_task(p) <= boosted_task_util(p) - uclamp_boosted(p) <= schedtune_task_boost(p) > 0 - uclamp_latency_sensitive(p) <= schedtune_prefer_idle(p) Let's provide also an implementation of the same API based on the new uclamp.uclamp_latency_sensitive flag. Bug: 120440300 Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com> [Modified the patch to use uclamp.latency_sensitive instead mainline attributes] Signed-off-by: Qais Yousef <qais.yousef@arm.com> Change-Id: Ib1a6902e1c07a82a370e36bf1776d895b7528cbc Signed-off-by: Quentin Perret <qperret@google.com> |
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Quentin Perret
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752b47b84d |
ANDROID: sched/core: Add a latency-sensitive flag to uclamp
Add a 'latency_sensitive' flag to uclamp in order to express the need for some tasks to find a CPU where they can wake-up quickly. This is not expected to be used without cgroup support, so add solely a cgroup interface for it. As this flag represents a boolean attribute and not an amount of resources to be shared, it is not clear what the delegation logic should be. As such, it is kept simple: every new cgroup starts with latency_sensitive set to false, regardless of the parent. In essence, this is similar to SchedTune's prefer-idle flag which was used in android-4.19 and prior. Bug: 120440300 Change-Id: I722d8ecabb428bb7b95a5b54bc70a87f182dde2a Signed-off-by: Quentin Perret <quentin.perret@arm.com> (cherry picked from commit ad7dd648fc7dbe11f23673a3463af2468a274998) Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Quentin Perret <qperret@google.com> |
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Patrick Bellasi
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9a05300da0 |
ANDROID: sched/tune: Move SchedTune cpu API into UtilClamp wrappers
The SchedTune CPU boosting API is currently used from sugov_get_util() to get the boosted utilization and to pass it into schedutil_cpu_util(). When UtilClamp is in use instead we call schedutil_cpu_util() by passing in just the CFS utilization and the clamping is done internally on the aggregated CFS+RT utilization for FREQUENCY_UTIL calls. This asymmetry is not required moreover, schedutil code is polluted by non-mainline SchedTune code. Wrap SchedTune API call related to cpu utilization boosting with a more generic and mainlinish UtilClamp call: - uclamp_rq_util_with(cpu, util, p) <= boosted_cpu_util(cpu) This new API is already used in schedutil_cpu_util() to clamp the aggregated RT+CFS utilization on FREQUENCY_UTIL calls. Move the cpu boosting into uclamp_rq_util_with() so that we remove any SchedTune specific bit from kernel/sched/cpufreq_schedutil.c. Get rid of the no more required boosted_cpu_util(cpu) method and replace it with a stune_util(cpu, util) which signature is better aligned with its uclamp_rq_util_with(cpu, util, p) counterpart. Bug: 120440300 Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com> Signed-off-by: Qais Yousef <qais.yousef@arm.com> Change-Id: I45b0f0f54123fe0a2515fa9f1683842e6b99234f [Removed superfluous __maybe_unused for capacity_orig_of] Signed-off-by: Quentin Perret <qperret@google.com> |
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Li Guanglei
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7e1c333ed1 |
FROMGIT: sched/core: Fix size of rq::uclamp initialization
rq::uclamp is an array of struct uclamp_rq, make sure we clear the whole thing. Bug: 120440300 Fixes: |
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Qais Yousef
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45b9d34bec |
FROMGIT: sched/uclamp: Fix a bug in propagating uclamp value in new cgroups
When a new cgroup is created, the effective uclamp value wasn't updated
with a call to cpu_util_update_eff() that looks at the hierarchy and
update to the most restrictive values.
Fix it by ensuring to call cpu_util_update_eff() when a new cgroup
becomes online.
Without this change, the newly created cgroup uses the default
root_task_group uclamp values, which is 1024 for both uclamp_{min, max},
which will cause the rq to to be clamped to max, hence cause the
system to run at max frequency.
The problem was observed on Ubuntu server and was reproduced on Debian
and Buildroot rootfs.
By default, Ubuntu and Debian create a cpu controller cgroup hierarchy
and add all tasks to it - which creates enough noise to keep the rq
uclamp value at max most of the time. Imitating this behavior makes the
problem visible in Buildroot too which otherwise looks fine since it's a
minimal userspace.
Bug: 120440300
Fixes:
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Valentin Schneider
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f59dfad8f9 |
FROMGIT: sched/uclamp: Rename uclamp_util_with() into uclamp_rq_util_with()
The current helper returns (CPU) rq utilization with uclamp restrictions
taken into account. A uclamp task utilization helper would be quite
helpful, but this requires some renaming.
Prepare the code for the introduction of a uclamp_task_util() by renaming
the existing uclamp_util_with() to uclamp_rq_util_with().
Bug: 120440300
Tested-By: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Quentin Perret <qperret@google.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191211113851.24241-4-valentin.schneider@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Valentin Schneider
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254e090f3a |
FROMGIT: sched/uclamp: Make uclamp util helpers use and return UL values
Vincent pointed out recently that the canonical type for utilization
values is 'unsigned long'. Internally uclamp uses 'unsigned int' values for
cache optimization, but this doesn't have to be exported to its users.
Make the uclamp helpers that deal with utilization use and return unsigned
long values.
Bug: 120440300
Tested-By: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Quentin Perret <qperret@google.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191211113851.24241-3-valentin.schneider@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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Valentin Schneider
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6477d90135 |
FROMGIT: sched/uclamp: Remove uclamp_util()
The sole user of uclamp_util(), schedutil_cpu_util(), was made to use uclamp_util_with() instead in commit: |
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Qais Yousef
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cdadd91444 |
BACKPORT: sched/rt: Make RT capacity-aware
Capacity Awareness refers to the fact that on heterogeneous systems
(like Arm big.LITTLE), the capacity of the CPUs is not uniform, hence
when placing tasks we need to be aware of this difference of CPU
capacities.
In such scenarios we want to ensure that the selected CPU has enough
capacity to meet the requirement of the running task. Enough capacity
means here that capacity_orig_of(cpu) >= task.requirement.
The definition of task.requirement is dependent on the scheduling class.
For CFS, utilization is used to select a CPU that has >= capacity value
than the cfs_task.util.
capacity_orig_of(cpu) >= cfs_task.util
DL isn't capacity aware at the moment but can make use of the bandwidth
reservation to implement that in a similar manner CFS uses utilization.
The following patchset implements that:
https://lore.kernel.org/lkml/20190506044836.2914-1-luca.abeni@santannapisa.it/
capacity_orig_of(cpu)/SCHED_CAPACITY >= dl_deadline/dl_runtime
For RT we don't have a per task utilization signal and we lack any
information in general about what performance requirement the RT task
needs. But with the introduction of uclamp, RT tasks can now control
that by setting uclamp_min to guarantee a minimum performance point.
ATM the uclamp value are only used for frequency selection; but on
heterogeneous systems this is not enough and we need to ensure that the
capacity of the CPU is >= uclamp_min. Which is what implemented here.
capacity_orig_of(cpu) >= rt_task.uclamp_min
Note that by default uclamp.min is 1024, which means that RT tasks will
always be biased towards the big CPUs, which make for a better more
predictable behavior for the default case.
Must stress that the bias acts as a hint rather than a definite
placement strategy. For example, if all big cores are busy executing
other RT tasks we can't guarantee that a new RT task will be placed
there.
On non-heterogeneous systems the original behavior of RT should be
retained. Similarly if uclamp is not selected in the config.
[ mingo: Minor edits to comments. ]
Bug: 120440300
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191009104611.15363-1-qais.yousef@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Valentin Schneider
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ea9ce42997 |
UPSTREAM: sched/uclamp: Fix overzealous type replacement
Some uclamp helpers had their return type changed from 'unsigned int' to 'enum uclamp_id' by commit |
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Qais Yousef
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7125c7cfca |
UPSTREAM: sched/uclamp: Fix incorrect condition
uclamp_update_active() should perform the update when p->uclamp[clamp_id].active is true. But when the logic was inverted in [1], the if condition wasn't inverted correctly too. [1] https://lore.kernel.org/lkml/20190902073836.GO2369@hirez.programming.kicks-ass.net/ Bug: 120440300 Reported-by: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Vincent Guittot <vincent.guittot@linaro.org> Cc: Ben Segall <bsegall@google.com> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Patrick Bellasi <patrick.bellasi@matbug.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: |
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Qais Yousef
|
64bf81cac2 |
UPSTREAM: sched/core: Fix compilation error when cgroup not selected
When cgroup is disabled the following compilation error was hit
kernel/sched/core.c: In function ‘uclamp_update_active_tasks’:
kernel/sched/core.c:1081:23: error: storage size of ‘it’ isn’t known
struct css_task_iter it;
^~
kernel/sched/core.c:1084:2: error: implicit declaration of function ‘css_task_iter_start’; did you mean ‘__sg_page_iter_start’? [-Werror=implicit-function-declaration]
css_task_iter_start(css, 0, &it);
^~~~~~~~~~~~~~~~~~~
__sg_page_iter_start
kernel/sched/core.c:1085:14: error: implicit declaration of function ‘css_task_iter_next’; did you mean ‘__sg_page_iter_next’? [-Werror=implicit-function-declaration]
while ((p = css_task_iter_next(&it))) {
^~~~~~~~~~~~~~~~~~
__sg_page_iter_next
kernel/sched/core.c:1091:2: error: implicit declaration of function ‘css_task_iter_end’; did you mean ‘get_task_cred’? [-Werror=implicit-function-declaration]
css_task_iter_end(&it);
^~~~~~~~~~~~~~~~~
get_task_cred
kernel/sched/core.c:1081:23: warning: unused variable ‘it’ [-Wunused-variable]
struct css_task_iter it;
^~
cc1: some warnings being treated as errors
make[2]: *** [kernel/sched/core.o] Error 1
Fix by protetion uclamp_update_active_tasks() with
CONFIG_UCLAMP_TASK_GROUP
Bug: 120440300
Fixes:
|
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Ingo Molnar
|
7f682d7abc |
UPSTREAM: sched/core: Fix uclamp ABI bug, clean up and robustify sched_read_attr() ABI logic and code
Thadeu Lima de Souza Cascardo reported that 'chrt' broke on recent kernels: $ chrt -p $$ chrt: failed to get pid 26306's policy: Argument list too long and he has root-caused the bug to the following commit increasing sched_attr size and breaking sched_read_attr() into returning -EFBIG: |
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Patrick Bellasi
|
53a73b1f35 |
UPSTREAM: sched/uclamp: Always use 'enum uclamp_id' for clamp_id values
The supported clamp indexes are defined in 'enum clamp_id', however, because
of the code logic in some of the first utilization clamping series version,
sometimes we needed to use 'unsigned int' to represent indices.
This is not more required since the final version of the uclamp_* APIs can
always use the proper enum uclamp_id type.
Fix it with a bulk rename now that we have all the bits merged.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Michal Koutny <mkoutny@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190822132811.31294-7-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
d286ec414a |
UPSTREAM: sched/uclamp: Update CPU's refcount on TG's clamp changes
On updates of task group (TG) clamp values, ensure that these new values
are enforced on all RUNNABLE tasks of the task group, i.e. all RUNNABLE
tasks are immediately boosted and/or capped as requested.
Do that each time we update effective clamps from cpu_util_update_eff().
Use the *cgroup_subsys_state (css) to walk the list of tasks in each
affected TG and update their RUNNABLE tasks.
Update each task by using the same mechanism used for cpu affinity masks
updates, i.e. by taking the rq lock.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Michal Koutny <mkoutny@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190822132811.31294-6-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
a1f3376922 |
UPSTREAM: sched/uclamp: Use TG's clamps to restrict TASK's clamps
When a task specific clamp value is configured via sched_setattr(2), this
value is accounted in the corresponding clamp bucket every time the task is
{en,de}qeued. However, when cgroups are also in use, the task specific
clamp values could be restricted by the task_group (TG) clamp values.
Update uclamp_cpu_inc() to aggregate task and TG clamp values. Every time a
task is enqueued, it's accounted in the clamp bucket tracking the smaller
clamp between the task specific value and its TG effective value. This
allows to:
1. ensure cgroup clamps are always used to restrict task specific requests,
i.e. boosted not more than its TG effective protection and capped at
least as its TG effective limit.
2. implement a "nice-like" policy, where tasks are still allowed to request
less than what enforced by their TG effective limits and protections
Do this by exploiting the concept of "effective" clamp, which is already
used by a TG to track parent enforced restrictions.
Apply task group clamp restrictions only to tasks belonging to a child
group. While, for tasks in the root group or in an autogroup, system
defaults are still enforced.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Michal Koutny <mkoutny@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190822132811.31294-5-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
c4c03cf9bf |
UPSTREAM: sched/uclamp: Propagate system defaults to the root group
The clamp values are not tunable at the level of the root task group.
That's for two main reasons:
- the root group represents "system resources" which are always
entirely available from the cgroup standpoint.
- when tuning/restricting "system resources" makes sense, tuning must
be done using a system wide API which should also be available when
control groups are not.
When a system wide restriction is available, cgroups should be aware of
its value in order to know exactly how much "system resources" are
available for the subgroups.
Utilization clamping supports already the concepts of:
- system defaults: which define the maximum possible clamp values
usable by tasks.
- effective clamps: which allows a parent cgroup to constraint (maybe
temporarily) its descendants without losing the information related
to the values "requested" from them.
Exploit these two concepts and bind them together in such a way that,
whenever system default are tuned, the new values are propagated to
(possibly) restrict or relax the "effective" value of nested cgroups.
When cgroups are in use, force an update of all the RUNNABLE tasks.
Otherwise, keep things simple and do just a lazy update next time each
task will be enqueued.
Do that since we assume a more strict resource control is required when
cgroups are in use. This allows also to keep "effective" clamp values
updated in case we need to expose them to user-space.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Michal Koutny <mkoutny@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190822132811.31294-4-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
77a413e758 |
UPSTREAM: sched/uclamp: Propagate parent clamps
In order to properly support hierarchical resources control, the cgroup
delegation model requires that attribute writes from a child group never
fail but still are locally consistent and constrained based on parent's
assigned resources. This requires to properly propagate and aggregate
parent attributes down to its descendants.
Implement this mechanism by adding a new "effective" clamp value for each
task group. The effective clamp value is defined as the smaller value
between the clamp value of a group and the effective clamp value of its
parent. This is the actual clamp value enforced on tasks in a task group.
Since it's possible for a cpu.uclamp.min value to be bigger than the
cpu.uclamp.max value, ensure local consistency by restricting each
"protection" (i.e. min utilization) with the corresponding "limit"
(i.e. max utilization).
Do that at effective clamps propagation to ensure all user-space write
never fails while still always tracking the most restrictive values.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Michal Koutny <mkoutny@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190822132811.31294-3-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
19718921c3 |
UPSTREAM: sched/uclamp: Extend CPU's cgroup controller
The cgroup CPU bandwidth controller allows to assign a specified
(maximum) bandwidth to the tasks of a group. However this bandwidth is
defined and enforced only on a temporal base, without considering the
actual frequency a CPU is running on. Thus, the amount of computation
completed by a task within an allocated bandwidth can be very different
depending on the actual frequency the CPU is running that task.
The amount of computation can be affected also by the specific CPU a
task is running on, especially when running on asymmetric capacity
systems like Arm's big.LITTLE.
With the availability of schedutil, the scheduler is now able
to drive frequency selections based on actual task utilization.
Moreover, the utilization clamping support provides a mechanism to
bias the frequency selection operated by schedutil depending on
constraints assigned to the tasks currently RUNNABLE on a CPU.
Giving the mechanisms described above, it is now possible to extend the
cpu controller to specify the minimum (or maximum) utilization which
should be considered for tasks RUNNABLE on a cpu.
This makes it possible to better defined the actual computational
power assigned to task groups, thus improving the cgroup CPU bandwidth
controller which is currently based just on time constraints.
Extend the CPU controller with a couple of new attributes uclamp.{min,max}
which allow to enforce utilization boosting and capping for all the
tasks in a group.
Specifically:
- uclamp.min: defines the minimum utilization which should be considered
i.e. the RUNNABLE tasks of this group will run at least at a
minimum frequency which corresponds to the uclamp.min
utilization
- uclamp.max: defines the maximum utilization which should be considered
i.e. the RUNNABLE tasks of this group will run up to a
maximum frequency which corresponds to the uclamp.max
utilization
These attributes:
a) are available only for non-root nodes, both on default and legacy
hierarchies, while system wide clamps are defined by a generic
interface which does not depends on cgroups. This system wide
interface enforces constraints on tasks in the root node.
b) enforce effective constraints at each level of the hierarchy which
are a restriction of the group requests considering its parent's
effective constraints. Root group effective constraints are defined
by the system wide interface.
This mechanism allows each (non-root) level of the hierarchy to:
- request whatever clamp values it would like to get
- effectively get only up to the maximum amount allowed by its parent
c) have higher priority than task-specific clamps, defined via
sched_setattr(), thus allowing to control and restrict task requests.
Add two new attributes to the cpu controller to collect "requested"
clamp values. Allow that at each non-root level of the hierarchy.
Keep it simple by not caring now about "effective" values computation
and propagation along the hierarchy.
Update sysctl_sched_uclamp_handler() to use the newly introduced
uclamp_mutex so that we serialize system default updates with cgroup
relate updates.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Michal Koutny <mkoutny@suse.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190822132811.31294-2-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
9a843ff48d |
BACKPORT: sched/uclamp: Add uclamp support to energy_compute()
The Energy Aware Scheduler (EAS) estimates the energy impact of waking
up a task on a given CPU. This estimation is based on:
a) an (active) power consumption defined for each CPU frequency
b) an estimation of which frequency will be used on each CPU
c) an estimation of the busy time (utilization) of each CPU
Utilization clamping can affect both b) and c).
A CPU is expected to run:
- on an higher than required frequency, but for a shorter time, in case
its estimated utilization will be smaller than the minimum utilization
enforced by uclamp
- on a smaller than required frequency, but for a longer time, in case
its estimated utilization is bigger than the maximum utilization
enforced by uclamp
While compute_energy() already accounts clamping effects on busy time,
the clamping effects on frequency selection are currently ignored.
Fix it by considering how CPU clamp values will be affected by a
task waking up and being RUNNABLE on that CPU.
Do that by refactoring schedutil_freq_util() to take an additional
task_struct* which allows EAS to evaluate the impact on clamp values of
a task being eventually queued in a CPU. Clamp values are applied to the
RT+CFS utilization only when a FREQUENCY_UTIL is required by
compute_energy().
Do note that switching from ENERGY_UTIL to FREQUENCY_UTIL in the
computation of the cpu_util signal implies that we are more likely to
estimate the highest OPP when a RT task is running in another CPU of
the same performance domain. This can have an impact on energy
estimation but:
- it's not easy to say which approach is better, since it depends on
the use case
- the original approach could still be obtained by setting a smaller
task-specific util_min whenever required
Since we are at that:
- rename schedutil_freq_util() into schedutil_cpu_util(),
since it's not only used for frequency selection.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-12-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
814a151015 |
UPSTREAM: sched/uclamp: Add uclamp_util_with()
So far uclamp_util() allows to clamp a specified utilization considering
the clamp values requested by RUNNABLE tasks in a CPU. For the Energy
Aware Scheduler (EAS) it is interesting to test how clamp values will
change when a task is becoming RUNNABLE on a given CPU.
For example, EAS is interested in comparing the energy impact of
different scheduling decisions and the clamp values can play a role on
that.
Add uclamp_util_with() which allows to clamp a given utilization by
considering the possible impact on CPU clamp values of a specified task.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-11-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
61d44b22d9 |
BACKPORT: sched/cpufreq, sched/uclamp: Add clamps for FAIR and RT tasks
Each time a frequency update is required via schedutil, a frequency is
selected to (possibly) satisfy the utilization reported by each
scheduling class and irqs. However, when utilization clamping is in use,
the frequency selection should consider userspace utilization clamping
hints. This will allow, for example, to:
- boost tasks which are directly affecting the user experience
by running them at least at a minimum "requested" frequency
- cap low priority tasks not directly affecting the user experience
by running them only up to a maximum "allowed" frequency
These constraints are meant to support a per-task based tuning of the
frequency selection thus supporting a fine grained definition of
performance boosting vs energy saving strategies in kernel space.
Add support to clamp the utilization of RUNNABLE FAIR and RT tasks
within the boundaries defined by their aggregated utilization clamp
constraints.
Do that by considering the max(min_util, max_util) to give boosted tasks
the performance they need even when they happen to be co-scheduled with
other capped tasks.
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-10-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
||
|
Patrick Bellasi
|
fa167475e1 |
UPSTREAM: sched/uclamp: Set default clamps for RT tasks
By default FAIR tasks start without clamps, i.e. neither boosted nor
capped, and they run at the best frequency matching their utilization
demand. This default behavior does not fit RT tasks which instead are
expected to run at the maximum available frequency, if not otherwise
required by explicitly capping them.
Enforce the correct behavior for RT tasks by setting util_min to max
whenever:
1. the task is switched to the RT class and it does not already have a
user-defined clamp value assigned.
2. an RT task is forked from a parent with RESET_ON_FORK set.
NOTE: utilization clamp values are cross scheduling class attributes and
thus they are never changed/reset once a value has been explicitly
defined from user-space.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-9-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
||
|
Patrick Bellasi
|
341f61099d |
UPSTREAM: sched/uclamp: Reset uclamp values on RESET_ON_FORK
A forked tasks gets the same clamp values of its parent however, when
the RESET_ON_FORK flag is set on parent, e.g. via:
sys_sched_setattr()
sched_setattr()
__sched_setscheduler(attr::SCHED_FLAG_RESET_ON_FORK)
the new forked task is expected to start with all attributes reset to
default values.
Do that for utilization clamp values too by checking the reset request
from the existing uclamp_fork() call which already provides the required
initialization for other uclamp related bits.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-8-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
e6056b2a5b |
UPSTREAM: sched/uclamp: Extend sched_setattr() to support utilization clamping
The SCHED_DEADLINE scheduling class provides an advanced and formal
model to define tasks requirements that can translate into proper
decisions for both task placements and frequencies selections. Other
classes have a more simplified model based on the POSIX concept of
priorities.
Such a simple priority based model however does not allow to exploit
most advanced features of the Linux scheduler like, for example, driving
frequencies selection via the schedutil cpufreq governor. However, also
for non SCHED_DEADLINE tasks, it's still interesting to define tasks
properties to support scheduler decisions.
Utilization clamping exposes to user-space a new set of per-task
attributes the scheduler can use as hints about the expected/required
utilization for a task. This allows to implement a "proactive" per-task
frequency control policy, a more advanced policy than the current one
based just on "passive" measured task utilization. For example, it's
possible to boost interactive tasks (e.g. to get better performance) or
cap background tasks (e.g. to be more energy/thermal efficient).
Introduce a new API to set utilization clamping values for a specified
task by extending sched_setattr(), a syscall which already allows to
define task specific properties for different scheduling classes. A new
pair of attributes allows to specify a minimum and maximum utilization
the scheduler can consider for a task.
Do that by validating the required clamp values before and then applying
the required changes using _the_ same pattern already in use for
__setscheduler(). This ensures that the task is re-enqueued with the new
clamp values.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-7-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
258e6b82dd |
UPSTREAM: sched/core: Allow sched_setattr() to use the current policy
The sched_setattr() syscall mandates that a policy is always specified.
This requires to always know which policy a task will have when
attributes are configured and this makes it impossible to add more
generic task attributes valid across different scheduling policies.
Reading the policy before setting generic tasks attributes is racy since
we cannot be sure it is not changed concurrently.
Introduce the required support to change generic task attributes without
affecting the current task policy. This is done by adding an attribute flag
(SCHED_FLAG_KEEP_POLICY) to enforce the usage of the current policy.
Add support for the SETPARAM_POLICY policy, which is already used by the
sched_setparam() POSIX syscall, to the sched_setattr() non-POSIX
syscall.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-6-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
|
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Patrick Bellasi
|
613eecebf9 |
UPSTREAM: sched/uclamp: Add system default clamps
Tasks without a user-defined clamp value are considered not clamped
and by default their utilization can have any value in the
[0..SCHED_CAPACITY_SCALE] range.
Tasks with a user-defined clamp value are allowed to request any value
in that range, and the required clamp is unconditionally enforced.
However, a "System Management Software" could be interested in limiting
the range of clamp values allowed for all tasks.
Add a privileged interface to define a system default configuration via:
/proc/sys/kernel/sched_uclamp_util_{min,max}
which works as an unconditional clamp range restriction for all tasks.
With the default configuration, the full SCHED_CAPACITY_SCALE range of
values is allowed for each clamp index. Otherwise, the task-specific
clamp is capped by the corresponding system default value.
Do that by tracking, for each task, the "effective" clamp value and
bucket the task has been refcounted in at enqueue time. This
allows to lazy aggregate "requested" and "system default" values at
enqueue time and simplifies refcounting updates at dequeue time.
The cached bucket ids are used to avoid (relatively) more expensive
integer divisions every time a task is enqueued.
An active flag is used to report when the "effective" value is valid and
thus the task is actually refcounted in the corresponding rq's bucket.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-5-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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Patrick Bellasi
|
c659be787e |
UPSTREAM: sched/uclamp: Enforce last task's UCLAMP_MAX
When a task sleeps it removes its max utilization clamp from its CPU.
However, the blocked utilization on that CPU can be higher than the max
clamp value enforced while the task was running. This allows undesired
CPU frequency increases while a CPU is idle, for example, when another
CPU on the same frequency domain triggers a frequency update, since
schedutil can now see the full not clamped blocked utilization of the
idle CPU.
Fix this by using:
uclamp_rq_dec_id(p, rq, UCLAMP_MAX)
uclamp_rq_max_value(rq, UCLAMP_MAX, clamp_value)
to detect when a CPU has no more RUNNABLE clamped tasks and to flag this
condition.
Don't track any minimum utilization clamps since an idle CPU never
requires a minimum frequency. The decay of the blocked utilization is
good enough to reduce the CPU frequency.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-4-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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Patrick Bellasi
|
ad20939c13 |
UPSTREAM: sched/uclamp: Add bucket local max tracking
Because of bucketization, different task-specific clamp values are
tracked in the same bucket. For example, with 20% bucket size and
assuming to have:
Task1: util_min=25%
Task2: util_min=35%
both tasks will be refcounted in the [20..39]% bucket and always boosted
only up to 20% thus implementing a simple floor aggregation normally
used in histograms.
In systems with only few and well-defined clamp values, it would be
useful to track the exact clamp value required by a task whenever
possible. For example, if a system requires only 23% and 47% boost
values then it's possible to track the exact boost required by each
task using only 3 buckets of ~33% size each.
Introduce a mechanism to max aggregate the requested clamp values of
RUNNABLE tasks in the same bucket. Keep it simple by resetting the
bucket value to its base value only when a bucket becomes inactive.
Allow a limited and controlled overboosting margin for tasks recounted
in the same bucket.
In systems where the boost values are not known in advance, it is still
possible to control the maximum acceptable overboosting margin by tuning
the number of clamp groups. For example, 20 groups ensure a 5% maximum
overboost.
Remove the rq bucket initialization code since a correct bucket value
is now computed when a task is refcounted into a CPU's rq.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-3-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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Patrick Bellasi
|
d96bd1d5fc |
UPSTREAM: sched/uclamp: Add CPU's clamp buckets refcounting
Utilization clamping allows to clamp the CPU's utilization within a
[util_min, util_max] range, depending on the set of RUNNABLE tasks on
that CPU. Each task references two "clamp buckets" defining its minimum
and maximum (util_{min,max}) utilization "clamp values". A CPU's clamp
bucket is active if there is at least one RUNNABLE tasks enqueued on
that CPU and refcounting that bucket.
When a task is {en,de}queued {on,from} a rq, the set of active clamp
buckets on that CPU can change. If the set of active clamp buckets
changes for a CPU a new "aggregated" clamp value is computed for that
CPU. This is because each clamp bucket enforces a different utilization
clamp value.
Clamp values are always MAX aggregated for both util_min and util_max.
This ensures that no task can affect the performance of other
co-scheduled tasks which are more boosted (i.e. with higher util_min
clamp) or less capped (i.e. with higher util_max clamp).
A task has:
task_struct::uclamp[clamp_id]::bucket_id
to track the "bucket index" of the CPU's clamp bucket it refcounts while
enqueued, for each clamp index (clamp_id).
A runqueue has:
rq::uclamp[clamp_id]::bucket[bucket_id].tasks
to track how many RUNNABLE tasks on that CPU refcount each
clamp bucket (bucket_id) of a clamp index (clamp_id).
It also has a:
rq::uclamp[clamp_id]::bucket[bucket_id].value
to track the clamp value of each clamp bucket (bucket_id) of a clamp
index (clamp_id).
The rq::uclamp::bucket[clamp_id][] array is scanned every time it's
needed to find a new MAX aggregated clamp value for a clamp_id. This
operation is required only when it's dequeued the last task of a clamp
bucket tracking the current MAX aggregated clamp value. In this case,
the CPU is either entering IDLE or going to schedule a less boosted or
more clamped task.
The expected number of different clamp values configured at build time
is small enough to fit the full unordered array into a single cache
line, for configurations of up to 7 buckets.
Add to struct rq the basic data structures required to refcount the
number of RUNNABLE tasks for each clamp bucket. Add also the max
aggregation required to update the rq's clamp value at each
enqueue/dequeue event.
Use a simple linear mapping of clamp values into clamp buckets.
Pre-compute and cache bucket_id to avoid integer divisions at
enqueue/dequeue time.
Bug: 120440300
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-2-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit
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Tejun Heo
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3703043afb |
UPSTREAM: cgroup: add cgroup_parse_float()
cgroup already uses floating point for percent[ile] numbers and there
are several controllers which want to take them as input. Add a
generic parse helper to handle inputs.
Update the interface convention documentation about the use of
percentage numbers. While at it, also clarify the default time unit.
Bug: 120440300
Signed-off-by: Tejun Heo <tj@kernel.org>
(cherry picked from commit
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Vincent Guittot
|
2d935df7b2 |
sched/fair: Fix insertion in rq->leaf_cfs_rq_list
commit |
||
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Peter Zijlstra
|
6c11530ea4 |
sched/fair: Add tmp_alone_branch assertion
commit
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Sami Tolvanen
|
4596eee0c8 |
ANDROID: kallsyms: strip hashes from function names with ThinLTO
With CONFIG_THINLTO and CFI both enabled, LLVM appends a hash to the names of all static functions. This breaks userspace tools, so strip out the hash from output. Bug: 147422318 Change-Id: Ibea6be089d530e92dcd191481cb02549041203f6 Signed-off-by: Sami Tolvanen <samitolvanen@google.com> |
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Greg Kroah-Hartman
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654c66e990 |
This is the 4.19.100 stable release
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fix control-message timeouts Revert "Input: synaptics-rmi4 - don't increment rmiaddr for SMBus transfers" ARM: 8950/1: ftrace/recordmcount: filter relocation types mmc: tegra: fix SDR50 tuning override mmc: sdhci: fix minimum clock rate for v3 controller Documentation: Document arm64 kpti control Input: pm8xxx-vib - fix handling of separate enable register Input: sur40 - fix interface sanity checks Input: gtco - fix endpoint sanity check Input: aiptek - fix endpoint sanity check Input: pegasus_notetaker - fix endpoint sanity check Input: sun4i-ts - add a check for devm_thermal_zone_of_sensor_register netfilter: nft_osf: add missing check for DREG attribute hwmon: (nct7802) Fix voltage limits to wrong registers scsi: RDMA/isert: Fix a recently introduced regression related to logout tracing: xen: Ordered comparison of function pointers do_last(): fetch directory ->i_mode and ->i_uid before it's too late net/sonic: Add mutual exclusion for accessing shared state net/sonic: Clear interrupt flags immediately net/sonic: Use MMIO accessors net/sonic: Fix interface error stats collection net/sonic: Fix receive buffer handling net/sonic: Avoid needless receive descriptor EOL flag updates net/sonic: Improve receive descriptor status flag check net/sonic: Fix receive buffer replenishment net/sonic: Quiesce SONIC before re-initializing descriptor memory net/sonic: Fix command register usage net/sonic: Fix CAM initialization net/sonic: Prevent tx watchdog timeout tracing: Use hist trigger's var_ref array to destroy var_refs tracing: Remove open-coding of hist trigger var_ref management tracing: Fix histogram code when expression has same var as value sd: Fix REQ_OP_ZONE_REPORT completion handling crypto: geode-aes - switch to skcipher for cbc(aes) fallback coresight: etb10: Do not call smp_processor_id from preemptible coresight: tmc-etf: Do not call smp_processor_id from preemptible libertas: Fix two buffer overflows at parsing bss descriptor media: v4l2-ioctl.c: zero reserved fields for S/TRY_FMT scsi: iscsi: Avoid potential deadlock in iscsi_if_rx func netfilter: ipset: use bitmap infrastructure completely netfilter: nf_tables: add __nft_chain_type_get() net/x25: fix nonblocking connect mm/memory_hotplug: make remove_memory() take the device_hotplug_lock mm, sparse: drop pgdat_resize_lock in sparse_add/remove_one_section() mm, sparse: pass nid instead of pgdat to sparse_add_one_section() drivers/base/memory.c: remove an unnecessary check on NR_MEM_SECTIONS mm, memory_hotplug: add nid parameter to arch_remove_memory mm/memory_hotplug: release memory resource after arch_remove_memory() drivers/base/memory.c: clean up relics in function parameters mm, memory_hotplug: update a comment in unregister_memory() mm/memory_hotplug: make unregister_memory_section() never fail mm/memory_hotplug: make __remove_section() never fail powerpc/mm: Fix section mismatch warning mm/memory_hotplug: make __remove_pages() and arch_remove_memory() never fail s390x/mm: implement arch_remove_memory() mm/memory_hotplug: allow arch_remove_memory() without CONFIG_MEMORY_HOTREMOVE drivers/base/memory: pass a block_id to init_memory_block() mm/memory_hotplug: create memory block devices after arch_add_memory() mm/memory_hotplug: remove memory block devices before arch_remove_memory() mm/memory_hotplug: make unregister_memory_block_under_nodes() never fail mm/memory_hotplug: remove "zone" parameter from sparse_remove_one_section mm/hotplug: kill is_dev_zone() usage in __remove_pages() drivers/base/node.c: simplify unregister_memory_block_under_nodes() mm/memunmap: don't access uninitialized memmap in memunmap_pages() mm/memory_hotplug: fix try_offline_node() mm/memory_hotplug: shrink zones when offlining memory Linux 4.19.100 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I1664d6d4de9358bff5632c291a26e1401ec7b5f1 |
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David Hildenbrand
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86834898d5 |
mm/memory_hotplug: shrink zones when offlining memory
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Aneesh Kumar K.V
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f291080659 |
mm/memunmap: don't access uninitialized memmap in memunmap_pages()
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Oscar Salvador
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5c1f8f5358 |
mm, memory_hotplug: add nid parameter to arch_remove_memory
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Steven Rostedt (VMware)
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ce28d66405 |
tracing: Fix histogram code when expression has same var as value
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Tom Zanussi
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cbb042fd87 |
tracing: Remove open-coding of hist trigger var_ref management
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Tom Zanussi
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836717841a |
tracing: Use hist trigger's var_ref array to destroy var_refs
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Masami Hiramatsu
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47eb3574d0 |
tracing: trigger: Replace unneeded RCU-list traversals
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Greg Kroah-Hartman
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1fca2c99f4 |
This is the 4.19.99 stable release
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAl4u6tsACgkQONu9yGCS aT693A//TExeDRnNnf+2v4TJorylyRr17BMxk/Ie2L5E6d2n/RWodsrOThAPU9tx 5alNUkXCT8Jd31BUVnUoPoAQ4zSymSVi++XEf05wDeO0tQ982IESGaLmu9EC1uMF nnM5y4IdRYmFI1Zji4h5vRJckoYUlB6Mdg4BgMr4Q1KX7RkZYfe6bjs7DwM/uyMx jVXdFaQBD1H6F5W6A+GmgUZ36g9uNqzcBxxWwv5URj+q816NdI4bsxIJMF0v0WC+ S54fmpS07QWIYKKsQBUepeSgEF4ECESOE2VoF1ICcnfakdPnDBmNgyPJPSrLmVf+ itRUxoH1MewaOvoJrv+xsGBPmM29LcKH2oBmj5DR2Xstp7ACPs+OtXJEU9dUTDN4 NhaSts5fIp0f4Y5mMn508pDUwYDAWDt99ZJWdx6aK/TRyUsHBgpxBQDt37BE3U5W PCBnObNe2b2KDAsVXLjX5iDYoA0+usFreveMo8uEP+ohfh0ANvJlRkzedYw7NquI ZCcT+I1P9q8aa0528tR332VLrQeYg+kG6LVi2kAabmRA/VtEsT0w90MY/eo2vuTU WlPmbs2yerv2HTm050e6MOgBZfPh7wP/FpbjsSXufj7EDywlfxF+1hXdwfrpPJeN fN3g0kepeUp7+kLzO40FLam/z5ndjAUhyN2SBaPzGsXjMkZdETk= =zvlh -----END PGP SIGNATURE----- Merge 4.19.99 into android-4.19 Changes in 4.19.99 Revert "efi: Fix debugobjects warning on 'efi_rts_work'" xfs: Sanity check flags of Q_XQUOTARM call i2c: stm32f7: rework slave_id allocation i2c: i2c-stm32f7: fix 10-bits check in slave free id search loop mfd: intel-lpss: Add default I2C device properties for Gemini Lake SUNRPC: Fix svcauth_gss_proxy_init() powerpc/pseries: Enable support for ibm,drc-info property powerpc/archrandom: fix arch_get_random_seed_int() tipc: update mon's self addr when node addr generated tipc: fix wrong timeout input for tipc_wait_for_cond() mt7601u: fix bbp version check in mt7601u_wait_bbp_ready crypto: sun4i-ss - fix big endian issues perf map: No need to adjust the long name of modules soc: aspeed: Fix snoop_file_poll()'s return type watchdog: sprd: Fix the incorrect pointer getting from driver data ipmi: Fix memory leak in __ipmi_bmc_register drm/sti: do not remove the drm_bridge that was never added ARM: dts: at91: nattis: set the PRLUD and HIPOW signals low ARM: dts: at91: nattis: make the SD-card slot work ixgbe: don't clear IPsec sa counters on HW clearing drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset() iio: fix position relative kernel version apparmor: Fix network performance issue in aa_label_sk_perm ALSA: hda: fix unused variable warning apparmor: don't try to replace stale label in ptrace access check ARM: qcom_defconfig: Enable MAILBOX firmware: coreboot: Let OF core populate platform device PCI: iproc: Remove PAXC slot check to allow VF support bridge: br_arp_nd_proxy: set icmp6_router if neigh has NTF_ROUTER drm/hisilicon: hibmc: Don't overwrite fb helper surface depth signal/ia64: Use the generic force_sigsegv in setup_frame signal/ia64: Use the force_sig(SIGSEGV,...) in ia64_rt_sigreturn ASoC: wm9712: fix unused variable warning mailbox: mediatek: Add check for possible failure of kzalloc IB/rxe: replace kvfree with vfree IB/hfi1: Add mtu check for operational data VLs genirq/debugfs: Reinstate full OF path for domain name usb: dwc3: add EXTCON dependency for qcom usb: gadget: fsl_udc_core: check allocation return value and cleanup on failure cfg80211: regulatory: make initialization more robust mei: replace POLL* with EPOLL* for write queues. drm/msm: fix unsigned comparison with less than zero of: Fix property name in of_node_get_device_type ALSA: usb-audio: update quirk for B&W PX to remove microphone iwlwifi: nvm: get num of hw addresses from firmware staging: comedi: ni_mio_common: protect register write overflow netfilter: nft_osf: usage from output path is not valid pwm: lpss: Release runtime-pm reference from the driver's remove callback powerpc/pseries/memory-hotplug: Fix return value type of find_aa_index rtlwifi: rtl8821ae: replace _rtl8821ae_mrate_idx_to_arfr_id with generic version RDMA/bnxt_re: Add missing spin lock initialization netfilter: nf_flow_table: do not remove offload when other netns's interface is down powerpc/kgdb: add kgdb_arch_set/remove_breakpoint() tipc: eliminate message disordering during binding table update net: socionext: Add dummy PHY register read in phy_write() drm/sun4i: hdmi: Fix double flag assignation net: hns3: add error handler for hns3_nic_init_vector_data() mlxsw: reg: QEEC: Add minimum shaper fields mlxsw: spectrum: Set minimum shaper on MC TCs NTB: ntb_hw_idt: replace IS_ERR_OR_NULL with regular NULL checks ASoC: wm97xx: fix uninitialized regmap pointer problem ARM: dts: bcm283x: Correct mailbox register sizes pcrypt: use format specifier in kobject_add ASoC: sun8i-codec: add missing route for ADC pinctrl: meson-gxl: remove invalid GPIOX tsin_a pins bus: ti-sysc: Add mcasp optional clocks flag exportfs: fix 'passing zero to ERR_PTR()' warning drm: rcar-du: Fix the return value in case of error in 'rcar_du_crtc_set_crc_source()' drm: rcar-du: Fix vblank initialization net: always initialize pagedlen drm/dp_mst: Skip validating ports during destruction, just ref arm64: dts: meson-gx: Add hdmi_5v regulator as hdmi tx supply arm64: dts: renesas: r8a7795-es1: Add missing power domains to IPMMU nodes net: phy: Fix not to call phy_resume() if PHY is not attached IB/hfi1: Correctly process FECN and BECN in packets OPP: Fix missing debugfs supply directory for OPPs IB/rxe: Fix incorrect cache cleanup in error flow mailbox: ti-msgmgr: Off by one in ti_msgmgr_of_xlate() staging: bcm2835-camera: Abort probe if there is no camera staging: bcm2835-camera: fix module autoloading switchtec: Remove immediate status check after submitting MRPC command ipv6: add missing tx timestamping on IPPROTO_RAW pinctrl: sh-pfc: r8a7740: Add missing REF125CK pin to gether_gmii group pinctrl: sh-pfc: r8a7740: Add missing LCD0 marks to lcd0_data24_1 group pinctrl: sh-pfc: r8a7791: Remove bogus ctrl marks from qspi_data4_b group pinctrl: sh-pfc: r8a7791: Remove bogus marks from vin1_b_data18 group pinctrl: sh-pfc: sh73a0: Add missing TO pin to tpu4_to3 group pinctrl: sh-pfc: r8a7794: Remove bogus IPSR9 field pinctrl: sh-pfc: r8a77970: Add missing MOD_SEL0 field pinctrl: sh-pfc: r8a77980: Add missing MOD_SEL0 field pinctrl: sh-pfc: sh7734: Add missing IPSR11 field pinctrl: sh-pfc: r8a77995: Remove bogus SEL_PWM[0-3]_3 configurations pinctrl: sh-pfc: sh7269: Add missing PCIOR0 field pinctrl: sh-pfc: sh7734: Remove bogus IPSR10 value net: hns3: fix error handling int the hns3_get_vector_ring_chain vxlan: changelink: Fix handling of default remotes Input: nomadik-ske-keypad - fix a loop timeout test fork,memcg: fix crash in free_thread_stack on memcg charge fail clk: highbank: fix refcount leak in hb_clk_init() clk: qoriq: fix refcount leak in clockgen_init() clk: ti: fix refcount leak in ti_dt_clocks_register() clk: socfpga: fix refcount leak clk: samsung: exynos4: fix refcount leak in exynos4_get_xom() clk: imx6q: fix refcount leak in imx6q_clocks_init() clk: imx6sx: fix refcount leak in imx6sx_clocks_init() clk: imx7d: fix refcount leak in imx7d_clocks_init() clk: vf610: fix refcount leak in vf610_clocks_init() clk: armada-370: fix refcount leak in a370_clk_init() clk: kirkwood: fix refcount leak in kirkwood_clk_init() clk: armada-xp: fix refcount leak in axp_clk_init() clk: mv98dx3236: fix refcount leak in mv98dx3236_clk_init() clk: dove: fix refcount leak in dove_clk_init() MIPS: BCM63XX: drop unused and broken DSP platform device arm64: defconfig: Re-enable bcm2835-thermal driver remoteproc: qcom: q6v5-mss: Add missing clocks for MSM8996 remoteproc: qcom: q6v5-mss: Add missing regulator for MSM8996 drm: Fix error handling in drm_legacy_addctx ARM: dts: r8a7743: Remove generic compatible string from iic3 drm/etnaviv: fix some off by one bugs drm/fb-helper: generic: Fix setup error path fork, memcg: fix cached_stacks case IB/usnic: Fix out of bounds index check in query pkey RDMA/ocrdma: Fix out of bounds index check in query pkey RDMA/qedr: Fix out of bounds index check in query pkey drm/shmob: Fix return value check in shmob_drm_probe arm64: dts: apq8016-sbc: Increase load on l11 for SDCARD spi: cadence: Correct initialisation of runtime PM RDMA/iw_cxgb4: Fix the unchecked ep dereference net: phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ9031 memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20 drm/etnaviv: NULL vs IS_ERR() buf in etnaviv_core_dump() media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVAL kbuild: mark prepare0 as PHONY to fix external module build crypto: brcm - Fix some set-but-not-used warning crypto: tgr192 - fix unaligned memory access ASoC: imx-sgtl5000: put of nodes if finding codec fails IB/iser: Pass the correct number of entries for dma mapped SGL net: hns3: fix wrong combined count returned by ethtool -l media: tw9910: Unregister subdevice with v4l2-async IB/mlx5: Don't override existing ip_protocol rtc: cmos: ignore bogus century byte spi/topcliff_pch: Fix potential NULL dereference on allocation error net: hns3: fix bug of ethtool_ops.get_channels for VF ARM: dts: sun8i-a23-a33: Move NAND controller device node to sort by address clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it iwlwifi: mvm: avoid possible access out of array. net/mlx5: Take lock with IRQs disabled to avoid deadlock ip_tunnel: Fix route fl4 init in ip_md_tunnel_xmit arm64: dts: allwinner: h6: Move GIC device node fix base address ordering iwlwifi: mvm: fix A-MPDU reference assignment bus: ti-sysc: Fix timer handling with drop pm_runtime_irq_safe() tty: ipwireless: Fix potential NULL pointer dereference driver: uio: fix possible memory leak in __uio_register_device driver: uio: fix possible use-after-free in __uio_register_device crypto: crypto4xx - Fix wrong ppc4xx_trng_probe()/ppc4xx_trng_remove() arguments driver core: Fix DL_FLAG_AUTOREMOVE_SUPPLIER device link flag handling driver core: Avoid careless re-use of existing device links driver core: Do not resume suppliers under device_links_write_lock() driver core: Fix handling of runtime PM flags in device_link_add() driver core: Do not call rpm_put_suppliers() in pm_runtime_drop_link() ARM: dts: lpc32xx: add required clocks property to keypad device node ARM: dts: lpc32xx: reparent keypad controller to SIC1 ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller variant ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller clocks property ARM: dts: lpc32xx: phy3250: fix SD card regulator voltage drm/xen-front: Fix mmap attributes for display buffers iwlwifi: mvm: fix RSS config command staging: most: cdev: add missing check for cdev_add failure clk: ingenic: jz4740: Fix gating of UDC clock rtc: ds1672: fix unintended sign extension thermal: mediatek: fix register index error arm64: dts: msm8916: remove bogus argument to the cpu clock ath10k: fix dma unmap direction for management frames net: phy: fixed_phy: Fix fixed_phy not checking GPIO rtc: ds1307: rx8130: Fix alarm handling net/smc: original socket family in inet_sock_diag rtc: 88pm860x: fix unintended sign extension rtc: 88pm80x: fix unintended sign extension rtc: pm8xxx: fix unintended sign extension fbdev: chipsfb: remove set but not used variable 'size' iw_cxgb4: use tos when importing the endpoint iw_cxgb4: use tos when finding ipv6 routes ipmi: kcs_bmc: handle devm_kasprintf() failure case xsk: add missing smp_rmb() in xsk_mmap drm/etnaviv: potential NULL dereference ntb_hw_switchtec: debug print 64bit aligned crosslink BAR Numbers ntb_hw_switchtec: NT req id mapping table register entry number should be 512 pinctrl: sh-pfc: emev2: Add missing pinmux functions pinctrl: sh-pfc: r8a7791: Fix scifb2_data_c pin group pinctrl: sh-pfc: r8a7792: Fix vin1_data18_b pin group pinctrl: sh-pfc: sh73a0: Fix fsic_spdif pin groups RDMA/mlx5: Fix memory leak in case we fail to add an IB device driver core: Fix possible supplier PM-usage counter imbalance PCI: endpoint: functions: Use memcpy_fromio()/memcpy_toio() usb: phy: twl6030-usb: fix possible use-after-free on remove block: don't use bio->bi_vcnt to figure out segment number keys: Timestamp new keys net: dsa: b53: Fix default VLAN ID net: dsa: b53: Properly account for VLAN filtering net: dsa: b53: Do not program CPU port's PVID mt76: usb: fix possible memory leak in mt76u_buf_free media: sh: migor: Include missing dma-mapping header vfio_pci: Enable memory accesses before calling pci_map_rom hwmon: (pmbus/tps53679) Fix driver info initialization in probe routine mdio_bus: Fix PTR_ERR() usage after initialization to constant KVM: PPC: Release all hardware TCE tables attached to a group staging: r8822be: check kzalloc return or bail dmaengine: mv_xor: Use correct device for DMA API cdc-wdm: pass return value of recover_from_urb_loss brcmfmac: create debugfs files for bus-specific layer regulator: pv88060: Fix array out-of-bounds access regulator: pv88080: Fix array out-of-bounds access regulator: pv88090: Fix array out-of-bounds access net: dsa: qca8k: Enable delay for RGMII_ID mode net/mlx5: Delete unused FPGA QPN variable drm/nouveau/bios/ramcfg: fix missing parentheses when calculating RON drm/nouveau/pmu: don't print reply values if exec is false drm/nouveau: fix missing break in switch statement driver core: Fix PM-runtime for links added during consumer probe ASoC: qcom: Fix of-node refcount unbalance in apq8016_sbc_parse_of() net: dsa: fix unintended change of bridge interface STP state fs/nfs: Fix nfs_parse_devname to not modify it's argument staging: rtlwifi: Use proper enum for return in halmac_parse_psd_data_88xx powerpc/64s: Fix logic when handling unknown CPU features NFS: Fix a soft lockup in the delegation recovery code perf: Copy parent's address filter offsets on clone perf, pt, coresight: Fix address filters for vmas with non-zero offset clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable clocksource/drivers/exynos_mct: Fix error path in timer resources initialization platform/x86: wmi: fix potential null pointer dereference NFS/pnfs: Bulk destroy of layouts needs to be safe w.r.t. umount mmc: sdhci-brcmstb: handle mmc_of_parse() errors during probe iommu: Fix IOMMU debugfs fallout ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used ARM: 8848/1: virt: Align GIC version check with arm64 counterpart ARM: 8849/1: NOMMU: Fix encodings for PMSAv8's PRBAR4/PRLAR4 regulator: wm831x-dcdc: Fix list of wm831x_dcdc_ilim from mA to uA ath10k: Fix length of wmi tlv command for protected mgmt frames netfilter: nft_set_hash: fix lookups with fixed size hash on big endian netfilter: nft_set_hash: bogus element self comparison from deactivation path net: sched: act_csum: Fix csum calc for tagged packets hwrng: bcm2835 - fix probe as platform device iommu/vt-d: Fix NULL pointer reference in intel_svm_bind_mm() NFS: Add missing encode / decode sequence_maxsz to v4.2 operations NFSv4/flexfiles: Fix invalid deref in FF_LAYOUT_DEVID_NODE() net: aquantia: fixed instack structure overflow powerpc/mm: Check secondary hash page table media: dvb/earth-pt1: fix wrong initialization for demod blocks rbd: clear ->xferred on error from rbd_obj_issue_copyup() PCI: Fix "try" semantics of bus and slot reset nios2: ksyms: Add missing symbol exports x86/mm: Remove unused variable 'cpu' scsi: megaraid_sas: reduce module load time nfp: fix simple vNIC mailbox length drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen() xen, cpu_hotplug: Prevent an out of bounds access net/mlx5: Fix multiple updates of steering rules in parallel net/mlx5e: IPoIB, Fix RX checksum statistics update net: sh_eth: fix a missing check of of_get_phy_mode regulator: lp87565: Fix missing register for LP87565_BUCK_0 soc: amlogic: gx-socinfo: Add mask for each SoC packages media: ivtv: update *pos correctly in ivtv_read_pos() media: cx18: update *pos correctly in cx18_read_pos() media: wl128x: Fix an error code in fm_download_firmware() media: cx23885: check allocation return regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB crypto: ccree - reduce kernel stack usage with clang jfs: fix bogus variable self-initialization tipc: tipc clang warning m68k: mac: Fix VIA timer counter accesses ARM: dts: sun8i: a33: Reintroduce default pinctrl muxing arm64: dts: allwinner: a64: Add missing PIO clocks ARM: dts: sun9i: optimus: Fix fixed-regulators net: phy: don't clear BMCR in genphy_soft_reset ARM: OMAP2+: Fix potentially uninitialized return value for _setup_reset() net: dsa: Avoid null pointer when failing to connect to PHY soc: qcom: cmd-db: Fix an error code in cmd_db_dev_probe() media: davinci-isif: avoid uninitialized variable use media: tw5864: Fix possible NULL pointer dereference in tw5864_handle_frame spi: tegra114: clear packed bit for unpacked mode spi: tegra114: fix for unpacked mode transfers spi: tegra114: terminate dma and reset on transfer timeout spi: tegra114: flush fifos spi: tegra114: configure dma burst size to fifo trig level bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated soc/fsl/qe: Fix an error code in qe_pin_request() spi: bcm2835aux: fix driver to not allow 65535 (=-1) cs-gpios drm/fb-helper: generic: Call drm_client_add() after setup is done arm64/vdso: don't leak kernel addresses rtc: Fix timestamp value for RTC_TIMESTAMP_BEGIN_1900 rtc: mt6397: Don't call irq_dispose_mapping. ehea: Fix a copy-paste err in ehea_init_port_res bpf: Add missed newline in verifier verbose log drm/vmwgfx: Remove set but not used variable 'restart' scsi: qla2xxx: Unregister chrdev if module initialization fails of: use correct function prototype for of_overlay_fdt_apply() net/sched: cbs: fix port_rate miscalculation clk: qcom: Skip halt checks on gcc_pcie_0_pipe_clk for 8998 ACPI: button: reinitialize button state upon resume firmware: arm_scmi: fix of_node leak in scmi_mailbox_check rxrpc: Fix detection of out of order acks scsi: target/core: Fix a race condition in the LUN lookup code brcmfmac: fix leak of mypkt on error return path ARM: pxa: ssp: Fix "WARNING: invalid free of devm_ allocated data" PCI: rockchip: Fix rockchip_pcie_ep_assert_intx() bitwise operations net: hns3: fix for vport->bw_limit overflow problem hwmon: (w83627hf) Use request_muxed_region for Super-IO accesses perf/core: Fix the address filtering fix staging: android: vsoc: fix copy_from_user overrun PCI: dwc: Fix dw_pcie_ep_find_capability() to return correct capability offset soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask platform/x86: alienware-wmi: fix kfree on potentially uninitialized pointer tipc: set sysctl_tipc_rmem and named_timeout right range usb: typec: tcpm: Notify the tcpc to start connection-detection for SRPs selftests/ipc: Fix msgque compiler warnings net: hns3: fix loop condition of hns3_get_tx_timeo_queue_info() powerpc: vdso: Make vdso32 installation conditional in vdso_install ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect media: ov2659: fix unbalanced mutex_lock/unlock 6lowpan: Off by one handling ->nexthdr dmaengine: axi-dmac: Don't check the number of frames for alignment ALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk() afs: Fix AFS file locking to allow fine grained locks afs: Further fix file locking NFS: Don't interrupt file writeout due to fatal errors coresight: catu: fix clang build warning s390/kexec_file: Fix potential segment overlap in ELF loader irqchip/gic-v3-its: fix some definitions of inner cacheability attributes scsi: qla2xxx: Fix a format specifier scsi: qla2xxx: Fix error handling in qlt_alloc_qfull_cmd() scsi: qla2xxx: Avoid that qlt_send_resp_ctio() corrupts memory KVM: PPC: Book3S HV: Fix lockdep warning when entering the guest netfilter: nft_flow_offload: add entry to flowtable after confirmation PCI: iproc: Enable iProc config read for PAXBv2 ARM: dts: logicpd-som-lv: Fix MMC1 card detect packet: in recvmsg msg_name return at least sizeof sockaddr_ll ASoC: fix valid stream condition usb: gadget: fsl: fix link error against usb-gadget module dwc2: gadget: Fix completed transfer size calculation in DDMA IB/mlx5: Add missing XRC options to QP optional params mask RDMA/rxe: Consider skb reserve space based on netdev of GID iommu/vt-d: Make kernel parameter igfx_off work with vIOMMU net: ena: fix swapped parameters when calling ena_com_indirect_table_fill_entry net: ena: fix: Free napi resources when ena_up() fails net: ena: fix incorrect test of supported hash function net: ena: fix ena_com_fill_hash_function() implementation dmaengine: tegra210-adma: restore channel status watchdog: rtd119x_wdt: Fix remove function mmc: core: fix possible use after free of host lightnvm: pblk: fix lock order in pblk_rb_tear_down_check ath10k: Fix encoding for protected management frames afs: Fix the afs.cell and afs.volume xattr handlers vfio/mdev: Avoid release parent reference during error path vfio/mdev: Follow correct remove sequence vfio/mdev: Fix aborting mdev child device removal if one fails l2tp: Fix possible NULL pointer dereference ALSA: aica: Fix a long-time build breakage media: omap_vout: potential buffer overflow in vidioc_dqbuf() media: davinci/vpbe: array underflow in vpbe_enum_outputs() platform/x86: alienware-wmi: printing the wrong error code crypto: caam - fix caam_dump_sg that iterates through scatterlist netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule pwm: meson: Consider 128 a valid pre-divider pwm: meson: Don't disable PWM when setting duty repeatedly ARM: riscpc: fix lack of keyboard interrupts after irq conversion nfp: bpf: fix static check error through tightening shift amount adjustment kdb: do a sanity check on the cpu in kdb_per_cpu() netfilter: nf_tables: correct NFT_LOGLEVEL_MAX value backlight: lm3630a: Return 0 on success in update_status functions thermal: rcar_gen3_thermal: fix interrupt type thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power EDAC/mc: Fix edac_mc_find() in case no device is found afs: Fix key leak in afs_release() and afs_evict_inode() afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set afs: Fix lock-wait/callback-break double locking afs: Fix double inc of vnode->cb_break ARM: dts: sun8i-h3: Fix wifi in Beelink X2 DT clk: meson: gxbb: no spread spectrum on mpll0 clk: meson: axg: spread spectrum is on mpll2 dmaengine: tegra210-adma: Fix crash during probe arm64: dts: meson: libretech-cc: set eMMC as removable RDMA/qedr: Fix incorrect device rate. spi: spi-fsl-spi: call spi_finalize_current_message() at the end crypto: ccp - fix AES CFB error exposed by new test vectors crypto: ccp - Fix 3DES complaint from ccp-crypto module serial: stm32: fix word length configuration serial: stm32: fix rx error handling serial: stm32: fix rx data length when parity enabled serial: stm32: fix transmit_chars when tx is stopped serial: stm32: Add support of TC bit status check serial: stm32: fix wakeup source initialization misc: sgi-xp: Properly initialize buf in xpc_get_rsvd_page_pa iommu: Add missing new line for dma type iommu: Use right function to get group for device signal/bpfilter: Fix bpfilter_kernl to use send_sig not force_sig signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig inet: frags: call inet_frags_fini() after unregister_pernet_subsys() net: hns3: fix a memory leak issue for hclge_map_unmap_ring_to_vf_vector crypto: talitos - fix AEAD processing. netvsc: unshare skb in VF rx handler net: core: support XDP generic on stacked devices. RDMA/uverbs: check for allocation failure in uapi_add_elm() net: don't clear sock->sk early to avoid trouble in strparser phy: qcom-qusb2: fix missing assignment of ret when calling clk_prepare_enable cpufreq: brcmstb-avs-cpufreq: Fix initial command check cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency clk: sunxi-ng: sun50i-h6-r: Fix incorrect W1 clock gate register media: vivid: fix incorrect assignment operation when setting video mode crypto: inside-secure - fix zeroing of the request in ahash_exit_inv crypto: inside-secure - fix queued len computation arm64: dts: renesas: ebisu: Remove renesas, no-ether-link property mpls: fix warning with multi-label encap serial: stm32: fix a recursive locking in stm32_config_rs485 arm64: dts: meson-gxm-khadas-vim2: fix gpio-keys-polled node arm64: dts: meson-gxm-khadas-vim2: fix Bluetooth support iommu/vt-d: Duplicate iommu_resv_region objects per device list phy: usb: phy-brcm-usb: Remove sysfs attributes upon driver removal firmware: arm_scmi: fix bitfield definitions for SENSOR_DESC attributes firmware: arm_scmi: update rate_discrete in clock_describe_rates_get ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev() ASoC: meson: axg-tdmin: right_j is not supported ASoC: meson: axg-tdmout: right_j is not supported qed: iWARP - Use READ_ONCE and smp_store_release to access ep->state qed: iWARP - fix uninitialized callback powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration bpf: fix the check that forwarding is enabled in bpf_ipv6_fib_lookup IB/hfi1: Handle port down properly in pio drm/msm/mdp5: Fix mdp5_cfg_init error return net: netem: fix backlog accounting for corrupted GSO frames net/udp_gso: Allow TX timestamp with UDP GSO net/af_iucv: build proper skbs for HiperTransport net/af_iucv: always register net_device notifier ASoC: ti: davinci-mcasp: Fix slot mask settings when using multiple AXRs rtc: pcf8563: Fix interrupt trigger method rtc: pcf8563: Clear event flags and disable interrupts before requesting irq ARM: dts: iwg20d-q7-common: Fix SDHI1 VccQ regularor net/sched: cbs: Fix error path of cbs_module_init arm64: dts: allwinner: h6: Pine H64: Add interrupt line for RTC drm/msm/a3xx: remove TPL1 regs from snapshot ip6_fib: Don't discard nodes with valid routing information in fib6_locate_1() perf/ioctl: Add check for the sample_period value dmaengine: hsu: Revert "set HSU_CH_MTSR to memory width" clk: qcom: Fix -Wunused-const-variable nvmem: imx-ocotp: Ensure WAIT bits are preserved when setting timing nvmem: imx-ocotp: Change TIMING calculation to u-boot algorithm tools: bpftool: use correct argument in cgroup errors backlight: pwm_bl: Fix heuristic to determine number of brightness levels fork,memcg: alloc_thread_stack_node needs to set tsk->stack bnxt_en: Fix ethtool selftest crash under error conditions. bnxt_en: Suppress error messages when querying DSCP DCB capabilities. iommu/amd: Make iommu_disable safer mfd: intel-lpss: Release IDA resources rxrpc: Fix uninitialized error code in rxrpc_send_data_packet() xprtrdma: Fix use-after-free in rpcrdma_post_recvs um: Fix IRQ controller regression on console read PM: ACPI/PCI: Resume all devices during hibernation ACPI: PM: Simplify and fix PM domain hibernation callbacks ACPI: PM: Introduce "poweroff" callbacks for ACPI PM domain and LPSS fsi/core: Fix error paths on CFAM init devres: allow const resource arguments fsi: sbefifo: Don't fail operations when in SBE IPL state RDMA/hns: Fixs hw access invalid dma memory error PCI: mobiveil: Remove the flag MSI_FLAG_MULTI_PCI_MSI PCI: mobiveil: Fix devfn check in mobiveil_pcie_valid_device() PCI: mobiveil: Fix the valid check for inbound and outbound windows ceph: fix "ceph.dir.rctime" vxattr value net: pasemi: fix an use-after-free in pasemi_mac_phy_init() net/tls: fix socket wmem accounting on fallback with netem x86/pgtable/32: Fix LOWMEM_PAGES constant xdp: fix possible cq entry leak ARM: stm32: use "depends on" instead of "if" after prompt scsi: libfc: fix null pointer dereference on a null lport xfrm interface: ifname may be wrong in logs drm/panel: make drm_panel.h self-contained clk: sunxi-ng: v3s: add the missing PLL_DDR1 PM: sleep: Fix possible overflow in pm_system_cancel_wakeup() libertas_tf: Use correct channel range in lbtf_geo_init qed: reduce maximum stack frame size usb: host: xhci-hub: fix extra endianness conversion media: rcar-vin: Clean up correct notifier in error path mic: avoid statically declaring a 'struct device'. x86/kgbd: Use NMI_VECTOR not APIC_DM_NMI crypto: ccp - Reduce maximum stack usage ALSA: aoa: onyx: always initialize register read value arm64: dts: renesas: r8a77995: Fix register range of display node tipc: reduce risk of wakeup queue starvation ARM: dts: stm32: add missing vdda-supply to adc on stm32h743i-eval net/mlx5: Fix mlx5_ifc_query_lag_out_bits cifs: fix rmmod regression in cifs.ko caused by force_sig changes iio: tsl2772: Use devm_add_action_or_reset for tsl2772_chip_off net: fix bpf_xdp_adjust_head regression for generic-XDP spi: bcm-qspi: Fix BSPI QUAD and DUAL mode support when using flex mode cxgb4: smt: Add lock for atomic_dec_and_test crypto: caam - free resources in case caam_rng registration failed ext4: set error return correctly when ext4_htree_store_dirent fails RDMA/hns: Bugfix for slab-out-of-bounds when unloading hip08 driver RDMA/hns: bugfix for slab-out-of-bounds when loading hip08 driver ASoC: es8328: Fix copy-paste error in es8328_right_line_controls ASoC: cs4349: Use PM ops 'cs4349_runtime_pm' ASoC: wm8737: Fix copy-paste error in wm8737_snd_controls net/rds: Add a few missing rds_stat_names entries tools: bpftool: fix arguments for p_err() in do_event_pipe() tools: bpftool: fix format strings and arguments for jsonw_printf() drm: rcar-du: lvds: Fix bridge_to_rcar_lvds bnxt_en: Fix handling FRAG_ERR when NVM_INSTALL_UPDATE cmd fails signal: Allow cifs and drbd to receive their terminating signals powerpc/64s/radix: Fix memory hot-unplug page table split ASoC: sun4i-i2s: RX and TX counter registers are swapped dmaengine: dw: platform: Switch to acpi_dma_controller_register() rtc: rv3029: revert error handling patch to rv3029_eeprom_write() mac80211: minstrel_ht: fix per-group max throughput rate initialization i40e: reduce stack usage in i40e_set_fc media: atmel: atmel-isi: fix timeout value for stop streaming ARM: 8896/1: VDSO: Don't leak kernel addresses rtc: pcf2127: bugfix: read rtc disables watchdog mips: avoid explicit UB in assignment of mips_io_port_base media: em28xx: Fix exception handling in em28xx_alloc_urbs() iommu/mediatek: Fix iova_to_phys PA start for 4GB mode ahci: Do not export local variable ahci_em_messages rxrpc: Fix lack of conn cleanup when local endpoint is cleaned up [ver #2] Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()" hwmon: (lm75) Fix write operations for negative temperatures net/sched: cbs: Set default link speed to 10 Mbps in cbs_set_port_rate power: supply: Init device wakeup after device_add() x86, perf: Fix the dependency of the x86 insn decoder selftest staging: greybus: light: fix a couple double frees irqdomain: Add the missing assignment of domain->fwnode for named fwnode bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA usb: typec: tps6598x: Fix build error without CONFIG_REGMAP_I2C bcache: Fix an error code in bch_dump_read() iio: dac: ad5380: fix incorrect assignment to val netfilter: ctnetlink: honor IPS_OFFLOAD flag ath9k: dynack: fix possible deadlock in ath_dynack_node_{de}init wcn36xx: use dynamic allocation for large variables tty: serial: fsl_lpuart: Use appropriate lpuart32_* I/O funcs ARM: dts: aspeed-g5: Fixe gpio-ranges upper limit xsk: avoid store-tearing when assigning queues xsk: avoid store-tearing when assigning umem led: triggers: Fix dereferencing of null pointer net: sonic: return NETDEV_TX_OK if failed to map buffer net: hns3: fix error VF index when setting VLAN offload rtlwifi: Fix file release memory leak ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux f2fs: fix wrong error injection path in inc_valid_block_count() f2fs: fix error path of f2fs_convert_inline_page() scsi: fnic: fix msix interrupt allocation Btrfs: fix hang when loading existing inode cache off disk Btrfs: fix inode cache waiters hanging on failure to start caching thread Btrfs: fix inode cache waiters hanging on path allocation failure btrfs: use correct count in btrfs_file_write_iter() ixgbe: sync the first fragment unconditionally hwmon: (shtc1) fix shtc1 and shtw1 id mask net: sonic: replace dev_kfree_skb in sonic_send_packet pinctrl: iproc-gpio: Fix incorrect pinconf configurations gpio/aspeed: Fix incorrect number of banks ath10k: adjust skb length in ath10k_sdio_mbox_rx_packet RDMA/cma: Fix false error message net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names' um: Fix off by one error in IRQ enumeration bnxt_en: Increase timeout for HWRM_DBG_COREDUMP_XX commands f2fs: fix to avoid accessing uninitialized field of inode page in is_alive() mailbox: qcom-apcs: fix max_register value clk: actions: Fix factor clk struct member access powerpc/mm/mce: Keep irqs disabled during lockless page table walk bpf: fix BTF limits crypto: hisilicon - Matching the dma address for dma_pool_free() iommu/amd: Wait for completion of IOTLB flush in attach_device net: aquantia: Fix aq_vec_isr_legacy() return value cxgb4: Signedness bug in init_one() net: hisilicon: Fix signedness bug in hix5hd2_dev_probe() net: broadcom/bcmsysport: Fix signedness in bcm_sysport_probe() net: netsec: Fix signedness bug in netsec_probe() net: socionext: Fix a signedness bug in ave_probe() net: stmmac: dwmac-meson8b: Fix signedness bug in probe net: axienet: fix a signedness bug in probe of: mdio: Fix a signedness bug in of_phy_get_and_connect() net: nixge: Fix a signedness bug in nixge_probe() net: ethernet: stmmac: Fix signedness bug in ipq806x_gmac_of_parse() net: sched: cbs: Avoid division by zero when calculating the port rate nvme: retain split access workaround for capability reads net: stmmac: gmac4+: Not all Unicast addresses may be available rxrpc: Fix trace-after-put looking at the put connection record mac80211: accept deauth frames in IBSS mode llc: fix another potential sk_buff leak in llc_ui_sendmsg() llc: fix sk_buff refcounting in llc_conn_state_process() ip6erspan: remove the incorrect mtu limit for ip6erspan net: stmmac: fix length of PTP clock's name string net: stmmac: fix disabling flexible PPS output sctp: add chunks to sk_backlog when the newsk sk_socket is not set s390/qeth: Fix error handling during VNICC initialization s390/qeth: Fix initialization of vnicc cmd masks during set online act_mirred: Fix mirred_init_module error handling net: avoid possible false sharing in sk_leave_memory_pressure() net: add {READ|WRITE}_ONCE() annotations on ->rskq_accept_head tcp: annotate lockless access to tcp_memory_pressure net/smc: receive returns without data net/smc: receive pending data after RCV_SHUTDOWN drm/msm/dsi: Implement reset correctly vhost/test: stop device before reset dmaengine: imx-sdma: fix size check for sdma script_number firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices arm64: hibernate: check pgd table allocation net: netem: fix error path for corrupted GSO frames net: netem: correct the parent's backlog when corrupted packet was dropped xsk: Fix registration of Rx-only sockets bpf, offload: Unlock on error in bpf_offload_dev_create() afs: Fix missing timeout reset net: qca_spi: Move reset_count to struct qcaspi hv_netvsc: Fix offset usage in netvsc_send_table() hv_netvsc: Fix send_table offset in case of a host bug afs: Fix large file support drm: panel-lvds: Potential Oops in probe error handling hwrng: omap3-rom - Fix missing clock by probing with device tree dpaa_eth: perform DMA unmapping before read dpaa_eth: avoid timestamp read on error paths MIPS: Loongson: Fix return value of loongson_hwmon_init hv_netvsc: flag software created hash value net: neigh: use long type to store jiffies delta packet: fix data-race in fanout_flow_is_huge() i2c: stm32f7: report dma error during probe mmc: sdio: fix wl1251 vendor id mmc: core: fix wl1251 sdio quirks affs: fix a memory leak in affs_remount afs: Remove set but not used variables 'before', 'after' dmaengine: ti: edma: fix missed failure handling drm/radeon: fix bad DMA from INTERRUPT_CNTL2 arm64: dts: juno: Fix UART frequency samples/bpf: Fix broken xdp_rxq_info due to map order assumptions usb: dwc3: Allow building USB_DWC3_QCOM without EXTCON IB/iser: Fix dma_nents type definition serial: stm32: fix clearing interrupt error flags arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node m68k: Call timer_interrupt() with interrupts disabled Linux 4.19.99 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ieabeab79ea5c8cb4b6b1552702fa5d6100cea5db |
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Dan Carpenter
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4622676d8f |
bpf, offload: Unlock on error in bpf_offload_dev_create()
[ Upstream commit |