| Commit message (Collapse) | Author | Age |
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It is not worth the overhead to migrate tasks for tiny insignificant
energy savings. To prevent this, an energy margin is introduced in
energy_diff() which effectively adds a dead-zone that rounds tiny energy
differences to zero. Since no scale is enforced for energy model data
the margin can't be absolute. Instead it is defined as +/-1.56% energy
saving compared to the current total estimated energy consumption.
Change-Id: I6be069c752c701fb825430896b3b768a7ab2fee4
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
[rebase: on top of msm-google/android-msm-marlin-3.18,
massage original patch which changes code in energy_diff()
into __energy_diff() introduced by SchedTune]
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
(cherry picked from commit 780cb5a5fa47adf13d4fc2b77e8e94448cd56098)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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The EAS functionality in the wakeup path will be brought back by the
following patch ("sched/fair: Energy-aware wake-up task placement")
providing the function select_energy_cpu_brute().
Change-Id: I927fb9e8261cfacfe404695f853941c7959aa146
[ Trivial merge conflicts resolved. ]
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
(cherry picked from commit 80aee424fb7765a777267e144037642625a71304)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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This lets us use Capacity-Aware Scheduling (CAS) if EAS is enabled.
Change-Id: I2e647a201ea0b733d1487c3e153047a49fb22847
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
(cherry picked from commit 00b7da2ae58bf568529e67614980f77e275b8d29)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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The comment for capacity_margin introduced in:
3273163c6775 ("sched/fair: Let asymmetric CPU configurations balance at wake-up")
... got its usage the wrong way round - fix it.
Change-Id: Ie46eac3e5ff43397b5bed61d0999d2817f1a1d96
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1476452472-24740-7-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit 893c5d2279041afeb593f1fa8edd9d02edf5b7cb)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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capacity groups
For asymmetric CPU capacity systems it is counter-productive for
throughput if low capacity CPUs are pulling tasks from non-overloaded
CPUs with higher capacity. The assumption is that higher CPU capacity is
preferred over running alone in a group with lower CPU capacity.
This patch rejects higher CPU capacity groups with one or less task per
CPU as potential busiest group which could otherwise lead to a series of
failing load-balancing attempts leading to a force-migration.
Change-Id: I428875bb6267c780026ef75e2882300738d016e7
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1476452472-24740-5-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit 9e0994c0a1c1f82c705f1f66388e1bcffcee8bb9)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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struct sched_group_capacity currently represents the compute capacity
sum of all CPUs in the sched_group.
Unless it is divided by the group_weight to get the average capacity
per CPU, it hides differences in CPU capacity for mixed capacity systems
(e.g. high RT/IRQ utilization or ARM big.LITTLE).
But even the average may not be sufficient if the group covers CPUs of
different capacities.
Instead, by extending struct sched_group_capacity to indicate min per-CPU
capacity in the group a suitable group for a given task utilization can
more easily be found such that CPUs with reduced capacity can be avoided
for tasks with high utilization (not implemented by this patch).
Change-Id: If3cae1be62d01a199e752bca5abb45357d5d0fbd
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1476452472-24740-4-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit bf475ce0a3dd75b5d1df6c6c14ae25168caa15ac)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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In low-utilization scenarios comparing relative loads in
find_idlest_group() doesn't always lead to the most optimum choice.
Systems with groups containing different numbers of cpus and/or cpus of
different compute capacity are significantly better off when considering
spare capacity rather than relative load in those scenarios.
In addition to existing load based search an alternative spare capacity
based candidate sched_group is found and selected instead if sufficient
spare capacity exists. If not, existing behaviour is preserved.
Change-Id: I6097af76c302a5a12e240ca24c70f707ad118242
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1476452472-24740-3-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit 6a0b19c0f39a7a7b7fb77d3867a733136ff059a3)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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At task wake-up load-tracking isn't updated until the task is enqueued.
The task's own view of its utilization contribution may therefore not be
aligned with its contribution to the cfs_rq load-tracking which may have
been updated in the meantime. Basically, the task's own utilization
hasn't yet accounted for the sleep decay, while the cfs_rq may have
(partially). Estimating the cfs_rq utilization in case the task is
migrated at wake-up as task_rq(p)->cfs.avg.util_avg - p->se.avg.util_avg
is therefore incorrect as the two load-tracking signals aren't time
synchronized (different last update).
To solve this problem, this patch synchronizes the task utilization with
its previous rq before the task utilization is used in the wake-up path.
Currently the update/synchronization is done _after_ the task has been
placed by select_task_rq_fair(). The synchronization is done without
having to take the rq lock using the existing mechanism used in
remove_entity_load_avg().
Change-Id: I5605cca0c94c6ba43d9ce11554765a2456cf85bc
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1476452472-24740-2-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit 104cb16d9eb684f071d5bf3aa87c0d01af259b7c)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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Currently, SD_WAKE_AFFINE always takes priority over wakeup balancing if
SD_BALANCE_WAKE is set on the sched_domains. For asymmetric
configurations SD_WAKE_AFFINE is only desirable if the waking task's
compute demand (utilization) is suitable for the waking CPU and the
previous CPU, and all CPUs within their respective
SD_SHARE_PKG_RESOURCES domains (sd_llc). If not, let wakeup balancing
take over (find_idlest_{group, cpu}()).
This patch makes affine wake-ups conditional on whether both the waker
CPU and the previous CPU has sufficient capacity for the waking task,
or not, assuming that the CPU capacities within an SD_SHARE_PKG_RESOURCES
domain (sd_llc) are homogeneous.
Change-Id: I6d5d0426713da9ef6198f574ad9afbe58dacc1f0
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1469453670-2660-10-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit 3273163c6775c4c21823985304c2364b08ca6ea2)
[removed existing definition of capacity_margin]
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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In the current find_idlest_group()/find_idlest_cpu() search we end up
calling find_idlest_cpu() in a sched_group containing only one CPU in
the end. Checking idle-states becomes pointless when there is no
alternative, so bail out instead.
Change-Id: Ic62bf09b53a7984143ac2431aaa69c69b204cd56
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: linux-kernel@vger.kernel.org
Cc: mgalbraith@suse.de
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1466615004-3503-4-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit eaecf41f5abf80b63c8e025fcb9ee4aa203c3038)
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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In commit:
ac66f5477239 ("sched/numa: Introduce migrate_swap()")
select_task_rq() got a 'cpu' argument to enable overriding of prev_cpu
in special cases (NUMA task swapping).
However, the select_task_rq_fair() helper functions: wake_affine() and
select_idle_sibling(), still use task_cpu(p) directly to work out
prev_cpu, which leads to inconsistencies.
This patch passes prev_cpu (potentially overridden by NUMA code) into
the helper functions to ensure prev_cpu is indeed the same CPU
everywhere in the wakeup path.
Change-Id: I4951c4eead2e6045e4fb34e89f6cda17d881d4d7
cc: Ingo Molnar <mingo@redhat.com>
cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dietmar.eggemann@arm.com
Cc: linux-kernel@vger.kernel.org
Cc: mgalbraith@suse.de
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1466615004-3503-3-git-send-email-morten.rasmussen@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit 772bd008cd9a1d4e8ce566f2edcc61d1c28fcbe5)
[merged with Android/EAS wakeup path]
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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Revert the changes in find_idlest_cpu() and find_idlest_group().
Keep the infrastructure bits which are used in following EAS patches.
Change-Id: Id516ca5f3e51b9a13db1ebb8de2df3aa25f9679b
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
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This reverts commit 75a9695b619741019363f889c99c97c7bb823797.
Change-Id: I846b21f2bdeb0b0ca30ad65683564ed07a429428
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
[ minor merge changes ]
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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If WALT is available and enabled, make schedutil governor use its
utilization signal.
Change-Id: I92bc37989447a76616e9bcc4e9e8616774fb9925
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
[we need to use boosted_cpu_util for schedutil, so make it
not static]
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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The scheduler cpufreq hooks are required by the schedutil cpufreq
governor.
Change-Id: Ied6c46262bb33b7e81bbb3d3d2761124e0c676b7
Signed-off-by: Steve Muckle <smuckle@linaro.org>
[trivial cherry-picking fixes]
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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select_best_cpu() has previous CPU's cluster bias which overrides
the best_cpu with best_sibling_cpu when the power cost is same.
When the power table is configured incorrectly or static_cpu_pwr_cost/
static_cluster_pwr_cost tunables are set to a large value, the
power_cost() for all candidate CPUs can return INT_MAX. So the
stats.min_cost is never changed from it's initial value i.e INT_MAX.
In the above scenario, we find stats.best_cpu >= 0 && stats.min_cost =
stats.best_sibling_cpu_cost = INT_MAX && stats.best_sibling_cpu_cost = -1
and replace best_cpu with best_sibling_cpu i.e -1.
Change-Id: I09829e278e41daaaff959428ff50927aba29104c
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
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* refs/heads/tmp-9bc4622:
Linux 4.4.70
drivers: char: mem: Check for address space wraparound with mmap()
nfsd: encoders mustn't use unitialized values in error cases
drm/edid: Add 10 bpc quirk for LGD 764 panel in HP zBook 17 G2
PCI: Freeze PME scan before suspending devices
PCI: Fix pci_mmap_fits() for HAVE_PCI_RESOURCE_TO_USER platforms
tracing/kprobes: Enforce kprobes teardown after testing
osf_wait4(): fix infoleak
genirq: Fix chained interrupt data ordering
uwb: fix device quirk on big-endian hosts
metag/uaccess: Check access_ok in strncpy_from_user
metag/uaccess: Fix access_ok()
iommu/vt-d: Flush the IOTLB to get rid of the initial kdump mappings
staging: rtl8192e: rtl92e_get_eeprom_size Fix read size of EPROM_CMD.
staging: rtl8192e: fix 2 byte alignment of register BSSIDR.
mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp
xc2028: Fix use-after-free bug properly
arm64: documentation: document tagged pointer stack constraints
arm64: uaccess: ensure extension of access_ok() addr
arm64: xchg: hazard against entire exchange variable
ARM: dts: at91: sama5d3_xplained: not all ADC channels are available
ARM: dts: at91: sama5d3_xplained: fix ADC vref
powerpc/64e: Fix hang when debugging programs with relocated kernel
powerpc/pseries: Fix of_node_put() underflow during DLPAR remove
powerpc/book3s/mce: Move add_taint() later in virtual mode
cx231xx-cards: fix NULL-deref at probe
cx231xx-audio: fix NULL-deref at probe
cx231xx-audio: fix init error path
dvb-frontends/cxd2841er: define symbol_rate_min/max in T/C fe-ops
zr364xx: enforce minimum size when reading header
dib0700: fix NULL-deref at probe
s5p-mfc: Fix unbalanced call to clock management
gspca: konica: add missing endpoint sanity check
ceph: fix recursion between ceph_set_acl() and __ceph_setattr()
iio: proximity: as3935: fix as3935_write
ipx: call ipxitf_put() in ioctl error path
USB: hub: fix non-SS hub-descriptor handling
USB: hub: fix SS hub-descriptor handling
USB: serial: io_ti: fix div-by-zero in set_termios
USB: serial: mct_u232: fix big-endian baud-rate handling
USB: serial: qcserial: add more Lenovo EM74xx device IDs
usb: serial: option: add Telit ME910 support
USB: iowarrior: fix info ioctl on big-endian hosts
usb: musb: tusb6010_omap: Do not reset the other direction's packet size
ttusb2: limit messages to buffer size
mceusb: fix NULL-deref at probe
usbvision: fix NULL-deref at probe
net: irda: irda-usb: fix firmware name on big-endian hosts
usb: host: xhci-mem: allocate zeroed Scratchpad Buffer
xhci: apply PME_STUCK_QUIRK and MISSING_CAS quirk for Denverton
usb: host: xhci-plat: propagate return value of platform_get_irq()
sched/fair: Initialize throttle_count for new task-groups lazily
sched/fair: Do not announce throttled next buddy in dequeue_task_fair()
fscrypt: avoid collisions when presenting long encrypted filenames
f2fs: check entire encrypted bigname when finding a dentry
fscrypt: fix context consistency check when key(s) unavailable
net: qmi_wwan: Add SIMCom 7230E
ext4 crypto: fix some error handling
ext4 crypto: don't let data integrity writebacks fail with ENOMEM
USB: serial: ftdi_sio: add Olimex ARM-USB-TINY(H) PIDs
USB: serial: ftdi_sio: fix setting latency for unprivileged users
pid_ns: Fix race between setns'ed fork() and zap_pid_ns_processes()
pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes
iio: dac: ad7303: fix channel description
of: fix sparse warning in of_pci_range_parser_one
proc: Fix unbalanced hard link numbers
cdc-acm: fix possible invalid access when processing notification
drm/nouveau/tmr: handle races with hw when updating the next alarm time
drm/nouveau/tmr: avoid processing completed alarms when adding a new one
drm/nouveau/tmr: fix corruption of the pending list when rescheduling an alarm
drm/nouveau/tmr: ack interrupt before processing alarms
drm/nouveau/therm: remove ineffective workarounds for alarm bugs
drm/amdgpu: Make display watermark calculations more accurate
drm/amdgpu: Avoid overflows/divide-by-zero in latency_watermark calculations.
ath9k_htc: fix NULL-deref at probe
ath9k_htc: Add support of AirTies 1eda:2315 AR9271 device
s390/cputime: fix incorrect system time
s390/kdump: Add final note
regulator: tps65023: Fix inverted core enable logic.
KVM: X86: Fix read out-of-bounds vulnerability in kvm pio emulation
KVM: x86: Fix load damaged SSEx MXCSR register
ima: accept previously set IMA_NEW_FILE
mwifiex: pcie: fix cmd_buf use-after-free in remove/reset
rtlwifi: rtl8821ae: setup 8812ae RFE according to device type
md: update slab_cache before releasing new stripes when stripes resizing
dm space map disk: fix some book keeping in the disk space map
dm thin metadata: call precommit before saving the roots
dm bufio: make the parameter "retain_bytes" unsigned long
dm cache metadata: fail operations if fail_io mode has been established
dm bufio: check new buffer allocation watermark every 30 seconds
dm bufio: avoid a possible ABBA deadlock
dm raid: select the Kconfig option CONFIG_MD_RAID0
dm btree: fix for dm_btree_find_lowest_key()
infiniband: call ipv6 route lookup via the stub interface
tpm_crb: check for bad response size
ARM: tegra: paz00: Mark panel regulator as enabled on boot
USB: core: replace %p with %pK
char: lp: fix possible integer overflow in lp_setup()
watchdog: pcwd_usb: fix NULL-deref at probe
USB: ene_usb6250: fix DMA to the stack
usb: misc: legousbtower: Fix memory leak
usb: misc: legousbtower: Fix buffers on stack
ANDROID: uid_sys_stats: defer io stats calulation for dead tasks
ANDROID: AVB: Fix linter errors.
ANDROID: AVB: Fix invalidate_vbmeta_submit().
ANDROID: sdcardfs: Check for NULL in revalidate
Linux 4.4.69
ipmi: Fix kernel panic at ipmi_ssif_thread()
wlcore: Add RX_BA_WIN_SIZE_CHANGE_EVENT event
wlcore: Pass win_size taken from ieee80211_sta to FW
mac80211: RX BA support for sta max_rx_aggregation_subframes
mac80211: pass block ack session timeout to to driver
mac80211: pass RX aggregation window size to driver
Bluetooth: hci_intel: add missing tty-device sanity check
Bluetooth: hci_bcm: add missing tty-device sanity check
Bluetooth: Fix user channel for 32bit userspace on 64bit kernel
tty: pty: Fix ldisc flush after userspace become aware of the data already
serial: omap: suspend device on probe errors
serial: omap: fix runtime-pm handling on unbind
serial: samsung: Use right device for DMA-mapping calls
arm64: KVM: Fix decoding of Rt/Rt2 when trapping AArch32 CP accesses
padata: free correct variable
CIFS: add misssing SFM mapping for doublequote
cifs: fix CIFS_IOC_GET_MNT_INFO oops
CIFS: fix mapping of SFM_SPACE and SFM_PERIOD
SMB3: Work around mount failure when using SMB3 dialect to Macs
Set unicode flag on cifs echo request to avoid Mac error
fs/block_dev: always invalidate cleancache in invalidate_bdev()
ceph: fix memory leak in __ceph_setxattr()
fs/xattr.c: zero out memory copied to userspace in getxattr
ext4: evict inline data when writing to memory map
IB/mlx4: Reduce SRIOV multicast cleanup warning message to debug level
IB/mlx4: Fix ib device initialization error flow
IB/IPoIB: ibX: failed to create mcg debug file
IB/core: Fix sysfs registration error flow
vfio/type1: Remove locked page accounting workqueue
dm era: save spacemap metadata root after the pre-commit
crypto: algif_aead - Require setkey before accept(2)
block: fix blk_integrity_register to use template's interval_exp if not 0
KVM: arm/arm64: fix races in kvm_psci_vcpu_on
KVM: x86: fix user triggerable warning in kvm_apic_accept_events()
um: Fix PTRACE_POKEUSER on x86_64
x86, pmem: Fix cache flushing for iovec write < 8 bytes
selftests/x86/ldt_gdt_32: Work around a glibc sigaction() bug
x86/boot: Fix BSS corruption/overwrite bug in early x86 kernel startup
usb: hub: Do not attempt to autosuspend disconnected devices
usb: hub: Fix error loop seen after hub communication errors
usb: Make sure usb/phy/of gets built-in
usb: misc: add missing continue in switch
staging: comedi: jr3_pci: cope with jiffies wraparound
staging: comedi: jr3_pci: fix possible null pointer dereference
staging: gdm724x: gdm_mux: fix use-after-free on module unload
staging: vt6656: use off stack for out buffer USB transfers.
staging: vt6656: use off stack for in buffer USB transfers.
USB: Proper handling of Race Condition when two USB class drivers try to call init_usb_class simultaneously
USB: serial: ftdi_sio: add device ID for Microsemi/Arrow SF2PLUS Dev Kit
usb: host: xhci: print correct command ring address
iscsi-target: Set session_fall_back_to_erl0 when forcing reinstatement
target: Convert ACL change queue_depth se_session reference usage
target/fileio: Fix zero-length READ and WRITE handling
target: Fix compare_and_write_callback handling for non GOOD status
xen: adjust early dom0 p2m handling to xen hypervisor behavior
ANDROID: AVB: Only invalidate vbmeta when told to do so.
ANDROID: sdcardfs: Move top to its own struct
ANDROID: lowmemorykiller: account for unevictable pages
ANDROID: usb: gadget: fix NULL pointer issue in mtp_read()
ANDROID: usb: f_mtp: return error code if transfer error in receive_file_work function
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
Conflicts:
drivers/usb/gadget/function/f_mtp.c
fs/ext4/page-io.c
net/mac80211/agg-rx.c
Change-Id: Id65e75bf3bcee4114eb5d00730a9ef2444ad58eb
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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Changes in 4.4.70
usb: misc: legousbtower: Fix buffers on stack
usb: misc: legousbtower: Fix memory leak
USB: ene_usb6250: fix DMA to the stack
watchdog: pcwd_usb: fix NULL-deref at probe
char: lp: fix possible integer overflow in lp_setup()
USB: core: replace %p with %pK
ARM: tegra: paz00: Mark panel regulator as enabled on boot
tpm_crb: check for bad response size
infiniband: call ipv6 route lookup via the stub interface
dm btree: fix for dm_btree_find_lowest_key()
dm raid: select the Kconfig option CONFIG_MD_RAID0
dm bufio: avoid a possible ABBA deadlock
dm bufio: check new buffer allocation watermark every 30 seconds
dm cache metadata: fail operations if fail_io mode has been established
dm bufio: make the parameter "retain_bytes" unsigned long
dm thin metadata: call precommit before saving the roots
dm space map disk: fix some book keeping in the disk space map
md: update slab_cache before releasing new stripes when stripes resizing
rtlwifi: rtl8821ae: setup 8812ae RFE according to device type
mwifiex: pcie: fix cmd_buf use-after-free in remove/reset
ima: accept previously set IMA_NEW_FILE
KVM: x86: Fix load damaged SSEx MXCSR register
KVM: X86: Fix read out-of-bounds vulnerability in kvm pio emulation
regulator: tps65023: Fix inverted core enable logic.
s390/kdump: Add final note
s390/cputime: fix incorrect system time
ath9k_htc: Add support of AirTies 1eda:2315 AR9271 device
ath9k_htc: fix NULL-deref at probe
drm/amdgpu: Avoid overflows/divide-by-zero in latency_watermark calculations.
drm/amdgpu: Make display watermark calculations more accurate
drm/nouveau/therm: remove ineffective workarounds for alarm bugs
drm/nouveau/tmr: ack interrupt before processing alarms
drm/nouveau/tmr: fix corruption of the pending list when rescheduling an alarm
drm/nouveau/tmr: avoid processing completed alarms when adding a new one
drm/nouveau/tmr: handle races with hw when updating the next alarm time
cdc-acm: fix possible invalid access when processing notification
proc: Fix unbalanced hard link numbers
of: fix sparse warning in of_pci_range_parser_one
iio: dac: ad7303: fix channel description
pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes
pid_ns: Fix race between setns'ed fork() and zap_pid_ns_processes()
USB: serial: ftdi_sio: fix setting latency for unprivileged users
USB: serial: ftdi_sio: add Olimex ARM-USB-TINY(H) PIDs
ext4 crypto: don't let data integrity writebacks fail with ENOMEM
ext4 crypto: fix some error handling
net: qmi_wwan: Add SIMCom 7230E
fscrypt: fix context consistency check when key(s) unavailable
f2fs: check entire encrypted bigname when finding a dentry
fscrypt: avoid collisions when presenting long encrypted filenames
sched/fair: Do not announce throttled next buddy in dequeue_task_fair()
sched/fair: Initialize throttle_count for new task-groups lazily
usb: host: xhci-plat: propagate return value of platform_get_irq()
xhci: apply PME_STUCK_QUIRK and MISSING_CAS quirk for Denverton
usb: host: xhci-mem: allocate zeroed Scratchpad Buffer
net: irda: irda-usb: fix firmware name on big-endian hosts
usbvision: fix NULL-deref at probe
mceusb: fix NULL-deref at probe
ttusb2: limit messages to buffer size
usb: musb: tusb6010_omap: Do not reset the other direction's packet size
USB: iowarrior: fix info ioctl on big-endian hosts
usb: serial: option: add Telit ME910 support
USB: serial: qcserial: add more Lenovo EM74xx device IDs
USB: serial: mct_u232: fix big-endian baud-rate handling
USB: serial: io_ti: fix div-by-zero in set_termios
USB: hub: fix SS hub-descriptor handling
USB: hub: fix non-SS hub-descriptor handling
ipx: call ipxitf_put() in ioctl error path
iio: proximity: as3935: fix as3935_write
ceph: fix recursion between ceph_set_acl() and __ceph_setattr()
gspca: konica: add missing endpoint sanity check
s5p-mfc: Fix unbalanced call to clock management
dib0700: fix NULL-deref at probe
zr364xx: enforce minimum size when reading header
dvb-frontends/cxd2841er: define symbol_rate_min/max in T/C fe-ops
cx231xx-audio: fix init error path
cx231xx-audio: fix NULL-deref at probe
cx231xx-cards: fix NULL-deref at probe
powerpc/book3s/mce: Move add_taint() later in virtual mode
powerpc/pseries: Fix of_node_put() underflow during DLPAR remove
powerpc/64e: Fix hang when debugging programs with relocated kernel
ARM: dts: at91: sama5d3_xplained: fix ADC vref
ARM: dts: at91: sama5d3_xplained: not all ADC channels are available
arm64: xchg: hazard against entire exchange variable
arm64: uaccess: ensure extension of access_ok() addr
arm64: documentation: document tagged pointer stack constraints
xc2028: Fix use-after-free bug properly
mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp
staging: rtl8192e: fix 2 byte alignment of register BSSIDR.
staging: rtl8192e: rtl92e_get_eeprom_size Fix read size of EPROM_CMD.
iommu/vt-d: Flush the IOTLB to get rid of the initial kdump mappings
metag/uaccess: Fix access_ok()
metag/uaccess: Check access_ok in strncpy_from_user
uwb: fix device quirk on big-endian hosts
genirq: Fix chained interrupt data ordering
osf_wait4(): fix infoleak
tracing/kprobes: Enforce kprobes teardown after testing
PCI: Fix pci_mmap_fits() for HAVE_PCI_RESOURCE_TO_USER platforms
PCI: Freeze PME scan before suspending devices
drm/edid: Add 10 bpc quirk for LGD 764 panel in HP zBook 17 G2
nfsd: encoders mustn't use unitialized values in error cases
drivers: char: mem: Check for address space wraparound with mmap()
Linux 4.4.70
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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commit 094f469172e00d6ab0a3130b0e01c83b3cf3a98d upstream.
Cgroup created inside throttled group must inherit current throttle_count.
Broken throttle_count allows to nominate throttled entries as a next buddy,
later this leads to null pointer dereference in pick_next_task_fair().
This patch initialize cfs_rq->throttle_count at first enqueue: laziness
allows to skip locking all rq at group creation. Lazy approach also allows
to skip full sub-tree scan at throttling hierarchy (not in this patch).
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Link: http://lkml.kernel.org/r/146608182119.21870.8439834428248129633.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Ben Pineau <benjamin.pineau@mirakl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 754bd598be9bbc953bc709a9e8ed7f3188bfb9d7 upstream.
Hierarchy could be already throttled at this point. Throttled next
buddy could trigger a NULL pointer dereference in pick_next_task_fair().
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Ben Segall <bsegall@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/146608183552.21905.15924473394414832071.stgit@buzz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Ben Pineau <benjamin.pineau@mirakl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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At the tick the scheduler checks whether a running task needs to
be migrated for some reason. If the reason is to up or down migrate
a task, we should only kick active balance when select_best_cpu()
returns a CPU in the appropriate cluster. Active migrating a task
to another CPU in the same cluster is wasteful.
Change-Id: I2c899a9c2dfb8ec4f983d7e355f0960f88bd3b45
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
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* refs/heads/tmp-c71ad0f:
BACKPORT: arm64: dts: juno: fix cluster sleep state entry latency on all SoC versions
staging: android: ashmem: lseek failed due to no FMODE_LSEEK.
ANDROID: sdcardfs: update module info
ANDROID: sdcardfs: use d_splice_alias
ANDROID: sdcardfs: add read_iter/write_iter opeations
ANDROID: sdcardfs: fix ->llseek to update upper and lower offset
ANDROID: sdcardfs: copy lower inode attributes in ->ioctl
ANDROID: sdcardfs: remove unnecessary call to do_munmap
Merge 4.4.59 into android-4.4
UPSTREAM: ipv6 addrconf: implement RFC7559 router solicitation backoff
android: base-cfg: enable CONFIG_INET_DIAG_DESTROY
ANDROID: android-base.cfg: add CONFIG_MODULES option
ANDROID: android-base.cfg: add CONFIG_IKCONFIG option
ANDROID: android-base.cfg: properly sort the file
ANDROID: binder: add hwbinder,vndbinder to BINDER_DEVICES.
ANDROID: sort android-recommended.cfg
UPSTREAM: config/android: Remove CONFIG_IPV6_PRIVACY
UPSTREAM: config: android: set SELinux as default security mode
config: android: move device mapper options to recommended
ANDROID: ARM64: Allow to choose appended kernel image
UPSTREAM: arm64: vdso: constify vm_special_mapping used for aarch32 vectors page
UPSTREAM: arm64: vdso: add __init section marker to alloc_vectors_page
UPSTREAM: ARM: 8597/1: VDSO: put RO and RO after init objects into proper sections
UPSTREAM: arm64: Add support for CLOCK_MONOTONIC_RAW in clock_gettime() vDSO
UPSTREAM: arm64: Refactor vDSO time functions
UPSTREAM: arm64: fix vdso-offsets.h dependency
UPSTREAM: kbuild: drop FORCE from PHONY targets
UPSTREAM: mm: add PHYS_PFN, use it in __phys_to_pfn()
UPSTREAM: ARM: 8476/1: VDSO: use PTR_ERR_OR_ZERO for vma check
Linux 4.4.58
crypto: algif_hash - avoid zero-sized array
fbcon: Fix vc attr at deinit
serial: 8250_pci: Detach low-level driver during PCI error recovery
ACPI / blacklist: Make Dell Latitude 3350 ethernet work
ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520
uvcvideo: uvc_scan_fallback() for webcams with broken chain
s390/zcrypt: Introduce CEX6 toleration
block: allow WRITE_SAME commands with the SG_IO ioctl
vfio/spapr: Postpone allocation of userspace version of TCE table
PCI: Do any VF BAR updates before enabling the BARs
PCI: Ignore BAR updates on virtual functions
PCI: Update BARs using property bits appropriate for type
PCI: Don't update VF BARs while VF memory space is enabled
PCI: Decouple IORESOURCE_ROM_ENABLE and PCI_ROM_ADDRESS_ENABLE
PCI: Add comments about ROM BAR updating
PCI: Remove pci_resource_bar() and pci_iov_resource_bar()
PCI: Separate VF BAR updates from standard BAR updates
x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic
igb: add i211 to i210 PHY workaround
igb: Workaround for igb i210 firmware issue
xen: do not re-use pirq number cached in pci device msi msg data
xfs: clear _XBF_PAGES from buffers when readahead page
USB: usbtmc: add missing endpoint sanity check
nl80211: fix dumpit error path RTNL deadlocks
xfs: fix up xfs_swap_extent_forks inline extent handling
xfs: don't allow di_size with high bit set
libceph: don't set weight to IN when OSD is destroyed
raid10: increment write counter after bio is split
cpufreq: Restore policy min/max limits on CPU online
ARM: dts: at91: sama5d2: add dma properties to UART nodes
ARM: at91: pm: cpu_idle: switch DDR to power-down mode
iommu/vt-d: Fix NULL pointer dereference in device_to_iommu
xen/acpi: upload PM state from init-domain to Xen
mmc: sdhci: Do not disable interrupts while waiting for clock
ext4: mark inode dirty after converting inline directory
parport: fix attempt to write duplicate procfiles
iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3
iio: adc: ti_am335x_adc: fix fifo overrun recovery
mmc: ushc: fix NULL-deref at probe
uwb: hwa-rc: fix NULL-deref at probe
uwb: i1480-dfu: fix NULL-deref at probe
usb: hub: Fix crash after failure to read BOS descriptor
usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer
USB: wusbcore: fix NULL-deref at probe
USB: idmouse: fix NULL-deref at probe
USB: lvtest: fix NULL-deref at probe
USB: uss720: fix NULL-deref at probe
usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk
usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval
ACM gadget: fix endianness in notifications
USB: serial: qcserial: add Dell DW5811e
USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems
ALSA: hda - Adding a group of pin definition to fix headset problem
ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call
ALSA: seq: Fix racy cell insertions during snd_seq_pool_done()
Input: sur40 - validate number of endpoints before using them
Input: kbtab - validate number of endpoints before using them
Input: cm109 - validate number of endpoints before using them
Input: yealink - validate number of endpoints before using them
Input: hanwang - validate number of endpoints before using them
Input: ims-pcu - validate number of endpoints before using them
Input: iforce - validate number of endpoints before using them
Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
tcp: initialize icsk_ack.lrcvtime at session start time
socket, bpf: fix sk_filter use after free in sk_clone_lock
ipv4: provide stronger user input validation in nl_fib_input()
net: bcmgenet: remove bcmgenet_internal_phy_setup()
net/mlx5e: Count LRO packets correctly
net/mlx5: Increase number of max QPs in default profile
net: unix: properly re-increment inflight counter of GC discarded candidates
amd-xgbe: Fix jumbo MTU processing on newer hardware
net: properly release sk_frag.page
net: bcmgenet: Do not suspend PHY if Wake-on-LAN is enabled
net/openvswitch: Set the ipv6 source tunnel key address attribute correctly
Linux 4.4.57
ext4: fix fencepost in s_first_meta_bg validation
percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages
gfs2: Avoid alignment hole in struct lm_lockname
isdn/gigaset: fix NULL-deref at probe
target: Fix VERIFY_16 handling in sbc_parse_cdb
scsi: libiscsi: add lock around task lists to fix list corruption regression
scsi: lpfc: Add shutdown method for kexec
target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export
md/raid1/10: fix potential deadlock
powerpc/boot: Fix zImage TOC alignment
cpufreq: Fix and clean up show_cpuinfo_cur_freq()
perf/core: Fix event inheritance on fork()
give up on gcc ilog2() constant optimizations
kernek/fork.c: allocate idle task for a CPU always on its local node
hv_netvsc: use skb_get_hash() instead of a homegrown implementation
tpm_tis: Use devm_free_irq not free_irq
drm/amdgpu: add missing irq.h include
s390/pci: fix use after free in dma_init
KVM: PPC: Book3S PR: Fix illegal opcode emulation
xen/qspinlock: Don't kick CPU if IRQ is not initialized
Drivers: hv: avoid vfree() on crash
Drivers: hv: balloon: don't crash when memory is added in non-sorted order
pinctrl: cherryview: Do not mask all interrupts in probe
ACPI / video: skip evaluating _DOD when it does not exist
cxlflash: Increase cmd_per_lun for better throughput
crypto: mcryptd - Fix load failure
crypto: cryptd - Assign statesize properly
crypto: ghash-clmulni - Fix load failure
USB: don't free bandwidth_mutex too early
usb: core: hub: hub_port_init lock controller instead of bus
ANDROID: sdcardfs: Fix style issues in macros
ANDROID: sdcardfs: Use seq_puts over seq_printf
ANDROID: sdcardfs: Use to kstrout
ANDROID: sdcardfs: Use pr_[...] instead of printk
ANDROID: sdcardfs: remove unneeded null check
ANDROID: sdcardfs: Fix style issues with comments
ANDROID: sdcardfs: Fix formatting
ANDROID: sdcardfs: correct order of descriptors
fix the deadlock in xt_qtaguid when enable DDEBUG
net: ipv6: Add sysctl for minimum prefix len acceptable in RIOs.
Linux 4.4.56
futex: Add missing error handling to FUTEX_REQUEUE_PI
futex: Fix potential use-after-free in FUTEX_REQUEUE_PI
x86/perf: Fix CR4.PCE propagation to use active_mm instead of mm
x86/kasan: Fix boot with KASAN=y and PROFILE_ANNOTATED_BRANCHES=y
fscrypto: lock inode while setting encryption policy
fscrypt: fix renaming and linking special files
net sched actions: decrement module reference count after table flush.
dccp: fix memory leak during tear-down of unsuccessful connection request
dccp/tcp: fix routing redirect race
bridge: drop netfilter fake rtable unconditionally
ipv6: avoid write to a possibly cloned skb
ipv6: make ECMP route replacement less greedy
mpls: Send route delete notifications when router module is unloaded
act_connmark: avoid crashing on malformed nlattrs with null parms
uapi: fix linux/packet_diag.h userspace compilation error
vrf: Fix use-after-free in vrf_xmit
dccp: fix use-after-free in dccp_feat_activate_values
net: fix socket refcounting in skb_complete_tx_timestamp()
net: fix socket refcounting in skb_complete_wifi_ack()
tcp: fix various issues for sockets morphing to listen state
dccp: Unlock sock before calling sk_free()
net: net_enable_timestamp() can be called from irq contexts
net: don't call strlen() on the user buffer in packet_bind_spkt()
l2tp: avoid use-after-free caused by l2tp_ip_backlog_recv
ipv4: mask tos for input route
vti6: return GRE_KEY for vti6
vxlan: correctly validate VXLAN ID against VXLAN_N_VID
netlink: remove mmapped netlink support
ANDROID: mmc: core: export emmc revision
BACKPORT: mmc: core: Export device lifetime information through sysfs
ANDROID: android-verity: do not compile as independent module
ANDROID: sched: fix duplicate sched_group_energy const specifiers
config: disable CONFIG_USELIB and CONFIG_FHANDLE
ANDROID: power: align wakeup_sources format
ANDROID: dm: android-verity: allow disable dm-verity for Treble VTS
uid_sys_stats: change to use rt_mutex
ANDROID: vfs: user permission2 in notify_change2
ANDROID: sdcardfs: Fix gid issue
ANDROID: sdcardfs: Use tabs instead of spaces in multiuser.h
ANDROID: sdcardfs: Remove uninformative prints
ANDROID: sdcardfs: move path_put outside of spinlock
ANDROID: sdcardfs: Use case insensitive hash function
ANDROID: sdcardfs: declare MODULE_ALIAS_FS
ANDROID: sdcardfs: Get the blocksize from the lower fs
ANDROID: sdcardfs: Use d_invalidate instead of drop_recurisve
ANDROID: sdcardfs: Switch to internal case insensitive compare
ANDROID: sdcardfs: Use spin_lock_nested
ANDROID: sdcardfs: Replace get/put with d_lock
ANDROID: sdcardfs: rate limit warning print
ANDROID: sdcardfs: Fix case insensitive lookup
ANDROID: uid_sys_stats: account for fsync syscalls
ANDROID: sched: add a counter to track fsync
ANDROID: uid_sys_stats: fix negative write bytes.
ANDROID: uid_sys_stats: allow writing same state
ANDROID: uid_sys_stats: rename uid_cputime.c to uid_sys_stats.c
ANDROID: uid_cputime: add per-uid IO usage accounting
DTB: Add EAS compatible Juno Energy model to 'juno.dts'
arm64: dts: juno: Add idle-states to device tree
ANDROID: Replace spaces by '_' for some android filesystem tracepoints.
usb: gadget: f_accessory: Fix for UsbAccessory clean unbind.
android: binder: move global binder state into context struct.
android: binder: add padding to binder_fd_array_object.
binder: use group leader instead of open thread
nf: IDLETIMER: Use fullsock when querying uid
nf: IDLETIMER: Fix use after free condition during work
ANDROID: dm: android-verity: fix table_make_digest() error handling
ANDROID: usb: gadget: function: Fix commenting style
cpufreq: interactive governor drops bits in time calculation
ANDROID: sdcardfs: support direct-IO (DIO) operations
ANDROID: sdcardfs: implement vm_ops->page_mkwrite
ANDROID: sdcardfs: Don't bother deleting freelist
ANDROID: sdcardfs: Add missing path_put
ANDROID: sdcardfs: Fix incorrect hash
ANDROID: ext4 crypto: Disables zeroing on truncation when there's no key
ANDROID: ext4: add a non-reversible key derivation method
ANDROID: ext4: allow encrypting filenames using HEH algorithm
ANDROID: arm64/crypto: add ARMv8-CE optimized poly_hash algorithm
ANDROID: crypto: heh - factor out poly_hash algorithm
ANDROID: crypto: heh - Add Hash-Encrypt-Hash (HEH) algorithm
ANDROID: crypto: gf128mul - Add ble multiplication functions
ANDROID: crypto: gf128mul - Refactor gf128 overflow macros and tables
UPSTREAM: crypto: gf128mul - Zero memory when freeing multiplication table
ANDROID: crypto: shash - Add crypto_grab_shash() and crypto_spawn_shash_alg()
ANDROID: crypto: allow blkcipher walks over ablkcipher data
UPSTREAM: arm/arm64: crypto: assure that ECB modes don't require an IV
ANDROID: Refactor fs readpage/write tracepoints.
ANDROID: export security_path_chown
Squashfs: optimize reading uncompressed data
Squashfs: implement .readpages()
Squashfs: replace buffer_head with BIO
Squashfs: refactor page_actor
Squashfs: remove the FILE_CACHE option
ANDROID: android-recommended.cfg: CONFIG_CPU_SW_DOMAIN_PAN=y
FROMLIST: 9p: fix a potential acl leak
BACKPORT: posix_acl: Clear SGID bit when setting file permissions
UPSTREAM: udp: properly support MSG_PEEK with truncated buffers
UPSTREAM: arm64: Allow hw watchpoint of length 3,5,6 and 7
BACKPORT: arm64: hw_breakpoint: Handle inexact watchpoint addresses
UPSTREAM: arm64: Allow hw watchpoint at varied offset from base address
BACKPORT: hw_breakpoint: Allow watchpoint of length 3,5,6 and 7
ANDROID: sdcardfs: Switch strcasecmp for internal call
ANDROID: sdcardfs: switch to full_name_hash and qstr
ANDROID: sdcardfs: Add GID Derivation to sdcardfs
ANDROID: sdcardfs: Remove redundant operation
ANDROID: sdcardfs: add support for user permission isolation
ANDROID: sdcardfs: Refactor configfs interface
ANDROID: sdcardfs: Allow non-owners to touch
ANDROID: binder: fix format specifier for type binder_size_t
ANDROID: fs: Export vfs_rmdir2
ANDROID: fs: Export free_fs_struct and set_fs_pwd
BACKPORT: Input: xpad - validate USB endpoint count during probe
BACKPORT: Input: xpad - fix oops when attaching an unknown Xbox One gamepad
ANDROID: mnt: remount should propagate to slaves of slaves
ANDROID: sdcardfs: Switch ->d_inode to d_inode()
ANDROID: sdcardfs: Fix locking issue with permision fix up
ANDROID: sdcardfs: Change magic value
ANDROID: sdcardfs: Use per mount permissions
ANDROID: sdcardfs: Add gid and mask to private mount data
ANDROID: sdcardfs: User new permission2 functions
ANDROID: vfs: Add setattr2 for filesystems with per mount permissions
ANDROID: vfs: Add permission2 for filesystems with per mount permissions
ANDROID: vfs: Allow filesystems to access their private mount data
ANDROID: mnt: Add filesystem private data to mount points
ANDROID: sdcardfs: Move directory unlock before touch
ANDROID: sdcardfs: fix external storage exporting incorrect uid
ANDROID: sdcardfs: Added top to sdcardfs_inode_info
ANDROID: sdcardfs: Switch package list to RCU
ANDROID: sdcardfs: Fix locking for permission fix up
ANDROID: sdcardfs: Check for other cases on path lookup
ANDROID: sdcardfs: override umask on mkdir and create
arm64: kernel: Fix build warning
DEBUG: sched/fair: Fix sched_load_avg_cpu events for task_groups
DEBUG: sched/fair: Fix missing sched_load_avg_cpu events
UPSTREAM: l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind()
UPSTREAM: packet: fix race condition in packet_set_ring
UPSTREAM: netlink: Fix dump skb leak/double free
UPSTREAM: net: avoid signed overflows for SO_{SND|RCV}BUFFORCE
MIPS: Prevent "restoration" of MSA context in non-MSA kernels
net: socket: don't set sk_uid to garbage value in ->setattr()
ANDROID: configs: CONFIG_ARM64_SW_TTBR0_PAN=y
UPSTREAM: arm64: Disable PAN on uaccess_enable()
UPSTREAM: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN
UPSTREAM: arm64: xen: Enable user access before a privcmd hvc call
UPSTREAM: arm64: Handle faults caused by inadvertent user access with PAN enabled
BACKPORT: arm64: Disable TTBR0_EL1 during normal kernel execution
BACKPORT: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1
BACKPORT: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro
BACKPORT: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros
UPSTREAM: arm64: alternative: add auto-nop infrastructure
UPSTREAM: arm64: barriers: introduce nops and __nops macros for NOP sequences
Revert "FROMLIST: arm64: Factor out PAN enabling/disabling into separate uaccess_* macros"
Revert "FROMLIST: arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro"
Revert "FROMLIST: arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1"
Revert "FROMLIST: arm64: Disable TTBR0_EL1 during normal kernel execution"
Revert "FROMLIST: arm64: Handle faults caused by inadvertent user access with PAN enabled"
Revert "FROMLIST: arm64: xen: Enable user access before a privcmd hvc call"
Revert "FROMLIST: arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN"
ANDROID: sched/walt: fix build failure if FAIR_GROUP_SCHED=n
ANDROID: trace: net: use %pK for kernel pointers
ANDROID: android-base: Enable QUOTA related configs
net: ipv4: Don't crash if passing a null sk to ip_rt_update_pmtu.
net: inet: Support UID-based routing in IP protocols.
net: core: add UID to flows, rules, and routes
net: core: Add a UID field to struct sock.
Revert "net: core: Support UID-based routing."
UPSTREAM: efi/arm64: Don't apply MEMBLOCK_NOMAP to UEFI memory map mapping
UPSTREAM: arm64: mm: always take dirty state from new pte in ptep_set_access_flags
UPSTREAM: arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
UPSTREAM: arm64: Fix typo in the pmdp_huge_get_and_clear() definition
UPSTREAM: arm64: enable CONFIG_DEBUG_RODATA by default
goldfish: enable CONFIG_INET_DIAG_DESTROY
sched/walt: kill {min,max}_capacity
sched: fix wrong truncation of walt_avg
build: fix build config kernel_dir
ANDROID: dm verity: add minimum prefetch size
build: add build server configs for goldfish
usb: gadget: Fix compilation problem with tx_qlen field
Conflicts:
android/configs/android-base.cfg
arch/arm64/Makefile
arch/arm64/include/asm/cpufeature.h
arch/arm64/kernel/vdso/gettimeofday.S
arch/arm64/mm/cache.S
drivers/md/Kconfig
drivers/misc/Makefile
drivers/mmc/host/sdhci.c
drivers/usb/core/hcd.c
drivers/usb/gadget/function/u_ether.c
fs/sdcardfs/derived_perm.c
fs/sdcardfs/file.c
fs/sdcardfs/inode.c
fs/sdcardfs/lookup.c
fs/sdcardfs/main.c
fs/sdcardfs/multiuser.h
fs/sdcardfs/packagelist.c
fs/sdcardfs/sdcardfs.h
fs/sdcardfs/super.c
include/linux/mmc/card.h
include/linux/mmc/mmc.h
include/trace/events/android_fs.h
include/trace/events/android_fs_template.h
drivers/android/binder.c
fs/exec.c
fs/ext4/crypto_key.c
fs/ext4/ext4.h
fs/ext4/inline.c
fs/ext4/inode.c
fs/ext4/readpage.c
fs/f2fs/data.c
fs/f2fs/inline.c
fs/mpage.c
include/linux/dcache.h
include/trace/events/sched.h
include/uapi/linux/ipv6.h
net/ipv4/tcp_ipv4.c
net/netfilter/xt_IDLETIMER.c
Change-Id: Ie345db6a14869fe0aa794aef4b71b5d0d503690b
Signed-off-by: Blagovest Kolenichev <bkolenichev@codeaurora.org>
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EAS uses "const struct sched_group_energy * const" fairly consistently.
But a couple of places swap the "*" and second "const", making the
pointer mutable.
In the case of struct sched_group, "* const" would have been an error,
since init_sched_energy() writes to sd->groups->sge.
Change-Id: Ic6a8fcf99e65c0f25d9cc55c32625ef3ca5c9aca
Signed-off-by: Greg Hackmann <ghackmann@google.com>
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The current sched_load_avg_cpu event traces the load for any cfs_rq that is
updated. This is not representative of the CPU load - instead we should only
trace this event when the cfs_rq being updated is in the root_task_group.
Change-Id: I345c2f13f6b5718cb4a89beb247f7887ce97ed6b
Signed-off-by: Brendan Jackman <brendan.jackman@arm.com>
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update_cfs_rq_load_avg is called from update_blocked_averages without triggering
the sched_load_avg_cpu event. Move the event trigger to inside
update_cfs_rq_load_avg to avoid this missing event.
Change-Id: I6c4f66f687a644e4e7f798db122d28a8f5919b7b
Signed-off-by: Brendan Jackman <brendan.jackman@arm.com>
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It will cause deadlock and while(1) if call printk while schedule is in
progress. The block state like as below:
cpu0(hold the console sem):
printk->console_unlock->up_sem->spin_lock(&sem->lock)->wake_up_process(cpu1)
->try_to_wake_up(cpu1)->while(p->on_cpu).
cpu1(request console sem):
console_lock->down_sem->schedule->idle_banlance->update_cpu_capacity->
printk->console_trylock->spin_lock(&sem->lock).
p->on_cpu will be 1 forever, because the task is still running on cpu1,
so cpu0 is blocked in while(p->on_cpu), but cpu1 could not get
spin_lock(&sem->lock), it is blocked too, it means the task will running
on cpu1 forever.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
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Change-Id: I049d2e9d238a92d56100e8e317be6688497eb501
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Change-Id: I83f5b9887e98f9fdb81318cde45408e7ebfc4b13
Signed-off-by: Srinath Sridharan <srinathsr@google.com>
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This is the 4.4.21 stable release
Change-Id: I03e47d6fdca8084641c4b4f9658ea0b0edb8f297
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The SchedTune tasks accounting is used to identify how many tasks are in
a boostgroup and thus to bias the selection of an OPP based on the
maximum boost value of the active boostgroups.
The current implementation however update the accounting after CPU
capacity has been update. This has two effects:
a) when we enqueue a boosted task, we do not immediately boost its CPU
b) when we dequeue a boosted task, we can keep a CPU boosted even if not
required
This patch change the order of the SchedTune accounting and SchedFreq
updated to ensure to have always an updated representation of which
boosted tasks are runnable on a CPU before updating its capacity.
Reported-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
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android-4.4
Change-Id: Ic24b43ee867bc4f70b31bedaad734717b64b86a1
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Part of the responsibility of the update_sg_lb_stats() function is to
update the idle_cpus statistical counter in struct sg_lb_stats. This
check is done by calling idle_cpu(). The idle_cpu() function, in
turn, checks a number of fields within the run queue structure such
as rq->curr and rq->nr_running.
With the current layout of the run queue structure, rq->curr and
rq->nr_running are in separate cachelines. The rq->curr variable is
checked first followed by nr_running. As nr_running is also accessed
by update_sg_lb_stats() earlier, it makes no sense to load another
cacheline when nr_running is not 0 as idle_cpu() will always return
false in this case.
This patch eliminates this redundant cacheline load by checking the
cached nr_running before calling idle_cpu().
Signed-off-by: Waiman Long <Waiman.Long@hpe.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Douglas Hatch <doug.hatch@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Scott J Norton <scott.norton@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1448478580-26467-2-git-send-email-Waiman.Long@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit a426f99c91d1036767a7819aaaba6bd3191b7f06)
Signed-off-by: Javi Merino <javi.merino@arm.com>
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This CL separates the notion of boost and prefer_idle schedtune
attributes in cpu selection. Today only top-app
tasks are boosted. The CPU selection is slightly tweaked such that
higher order cpus are preferred only for boosted tasks (top-app) and the
rest would be skewed towards lower order cpus.
This avoids starvation issues for fg tasks when interacting with high
priority top-app tasks (a problem often seen in the case of system_server).
bug: 30245369
bug: 30292998
Change-Id: I0377e00893b9f6586eec55632a265518fd2fa8a1
Conflicts:
kernel/sched/fair.c
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When a task leaves a rq because it is migrated away it carries its
utilization with him. In this case and OPP update on the src rq might be
needed. The corresponding update at dst rq will happen at enqueue time.
Change-Id: I22754a43760fc8d22a488fe15044af93787ea7a8
sched/fair: Fix uninitialised variable in idle_balance
compiler warned, looks legit.
Signed-off-by: Chris Redpath <chris.redpath@arm.com>
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When idle cpus cannot be found for Top-app/FG tasks, the cpu selection
algorithm picks a cpu with lowest OPP amongst the busy cpus as a second
choice.
Mitigates the "runnable" time for ui and render threads.
bug: 30481949
bug: 30342017
bug: 30508678
Change-Id: I5a97e31d33284895c0fa6f6942102713ee576d77
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Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
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Hint to enable biasing of tasks towards idle cpus, even when a given
task is negatively boosted. The mechanism allows upto 20% reduction in
camera power without hurting performance.
bug: 28312446
Change-Id: I97ea5671aa1e6bcb165408b41e17bc82e41c2c9e
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If cpus are busy, the cpu selection algorithm was favoring
cpus with lower capacity. This can result in uneven packing
since there will be a bias toward the same cpu until there
is a capacity change. Instead use the utilization so there
is immediate feedback as tasks are assigned
BUG: 30115868
Change-Id: I0ac7ae3ab5d8f2f5a5838c29bb6da2c3e8ef44e8
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BUG: 29353986
Change-Id: I0d0d8d5c107a2e0bd219819e036091106bb40e11
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Schedules on a core whose irq count is less than a threshold.
Improves I/O performance of EAS.
Change-Id: I08ff7dd0d22502a0106fc636b1af2e6fe9e758b5
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use a window based view of time in order to track task
demand and CPU utilization in the scheduler.
Window Assisted Load Tracking (WALT) implementation credits:
Srivatsa Vaddagiri, Steve Muckle, Syed Rameez Mustafa, Joonwoo Park,
Pavan Kumar Kondeti, Olav Haugan
2016-03-06: Integration with EAS/refactoring by Vikram Mulukutla
and Todd Kjos
Change-Id: I21408236836625d4e7d7de1843d20ed5ff36c708
Includes fixes for issues:
eas/walt: Use walt_ktime_clock() instead of ktime_get_ns() to avoid a
race resulting in watchdog resets
BUG: 29353986
Change-Id: Ic1820e22a136f7c7ebd6f42e15f14d470f6bbbdb
Handle walt accounting anomoly during resume
During resume, there is a corner case where on wakeup, a task's
prev_runnable_sum can go negative. This is a workaround that
fixes the condition and warns (instead of crashing).
BUG: 29464099
Change-Id: I173e7874324b31a3584435530281708145773508
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Srinath Sridharan <srinathsr@google.com>
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
[jstultz: fwdported to 4.4]
Signed-off-by: John Stultz <john.stultz@linaro.org>
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find_best_target CPU selection is biased towards lower CPU IDs. Bias
towards higher CPUs for boosted tasks. For boosted tasks unconditionally
use the idle CPU returned by find_best_target.
BUG: 29512132
Change-Id: I3d650051752163fcf3dc7909751d1fde3f9d17c0
Conflicts:
kernel/sched/fair.c
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Contains:
sched/tune: fix accounting for runnable tasks (1/5)
The accounting for tasks into boost groups of different CPUs is currently
broken mainly because:
a) we do not properly track the change of boost group of a RUNNABLE task
b) there are race conditions between migration code and accounting code
This patch provides a fixes to ensure enqueue/dequeue
accounting also for throttled tasks.
Without this patch is can happen that a task is enqueued into a throttled
RQ thus not being accounted for the boosting of the corresponding RQ.
We could argue that a throttled task should not boost a CPU, however:
a) properly implementing CPU boosting considering throttled tasks will
increase a lot the complexity of the solution
b) it's not easy to quantify the benefits introduced by such a more
complex solution
Since task throttling requires the usage of the CFS bandwidth controller,
which is not widely used on mobile systems (at least not by Android kernels
so far), for the time being we go for the simple solution and boost also
for throttled RQs.
sched/tune: fix accounting for runnable tasks (2/5)
This patch provides the code required to enforce proper locking.
A per boost group spinlock has been added to grant atomic
accounting of tasks as well as to serialise enqueue/dequeue operations,
triggered by tasks migrations, with cgroups's attach/detach operations.
sched/tune: fix accounting for runnable tasks (3/5)
This patch adds cgroups {allow,can,cancel}_attach callbacks.
Since a task can be migrated between boost groups while it's running,
the CGroups's attach callbacks have been added to properly migrate
boost contributions of RUNNABLE tasks.
The RQ's lock is used to serialise enqueue/dequeue operations, triggered
by tasks migrations, with cgroups's attach/detach operations. While the
SchedTune's CPU lock is used to grant atrocity of the accounting within
the CPU.
NOTE: the current implementation does not allows a concurrent CPU migration
and CGroups change.
sched/tune: fix accounting for runnable tasks (4/5)
This fixes accounting for exiting tasks by adding a dedicated call early
in the do_exit() syscall, which disables SchedTune accounting as soon as a
task is flagged PF_EXITING.
This flag is set before the multiple dequeue/enqueue dance triggered
by cgroup_exit() which is useful only to inject useless tasks movements
thus increasing possibilities for race conditions with the migration code.
The schedtune_exit_task() call does the last dequeue of a task from its
current boost group. This is a solution more aligned with what happens in
mainline kernels (>v4.4) where the exit_cgroup does not move anymore a dying
task to the root control group.
sched/tune: fix accounting for runnable tasks (5/5)
To avoid accounting issues at startup, this patch disable the SchedTune
accounting until the required data structures have been properly
initialized.
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
[jstultz: fwdported to 4.4]
Signed-off-by: John Stultz <john.stultz@linaro.org>
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The usage of conditional compiled code is discouraged in fair.c.
This patch clean up a bit fair.c by moving schedtune_{cpu.task}_boost
definitions into tune.h.
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
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Change-Id: I164ee04ba98c3a776605f18cb65ee61b3e917939
Contains also:
eas/stune: schedtune cpu boost_max must be non-negative.
This is to avoid under-accounting cpu capacity which may
cause task stacking and frequency spikes.
Change-Id: Ie1c1cbd52a6edb77b4c15a830030aa748dff6f29
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