If tomoyo is used in a testing/fuzzing environment in learning mode,
for lots of domains the quota will be exceeded and stay exceeded
for prolonged periods of time. In such cases it's pointless (and slow)
to walk the whole acl list again and again just to rediscover that
the quota is exceeded. We already have the TOMOYO_DIF_QUOTA_WARNED flag
that notes the overflow condition. Check it early to avoid the slowdown.
[penguin-kernel]
This patch causes a user visible change that the learning mode will not be
automatically resumed after the quota is increased. To resume the learning
mode, administrator will need to explicitly clear TOMOYO_DIF_QUOTA_WARNED
flag after increasing the quota. But I think that this change is generally
preferable, for administrator likely wants to optimize the acl list for
that domain before increasing the quota, or that domain likely hits the
quota again. Therefore, don't try to care to clear TOMOYO_DIF_QUOTA_WARNED
flag automatically when the quota for that domain changed.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Misc bugfixes.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Misc virtio and vdpa bugfixes"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vdpa: Consider device id larger than 31
virtio/vsock: fix the transport to work with VMADDR_CID_ANY
virtio_ring: Fix querying of maximum DMA mapping size for virtio device
virtio: always enter drivers/virtio/
vduse: check that offset is within bounds in get_config()
vdpa: check that offsets are within bounds
vduse: fix memory corruption in vduse_dev_ioctl()
The driver is not ready yet to be compiled as a module since it depends
on some symbols not exported on MIPS. We have the following current
problems:
Building mips:allmodconfig ... failed
--------------
Error log:
ERROR: modpost: missing MODULE_LICENSE() in drivers/pci/controller/pcie-mt7621.o
ERROR: modpost: "mips_cm_unlock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
ERROR: modpost: "mips_cpc_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!
ERROR: modpost: "mips_cm_lock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
ERROR: modpost: "mips_cm_is64" [drivers/pci/controller/pcie-mt7621.ko] undefined!
ERROR: modpost: "mips_gcr_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!
Temporarily move from 'tristate' to 'bool' until a better solution is
ready.
Also RALINK is redundant because SOC_MT7621 already depends on it.
Hence, simplify condition.
Fixes: 2bdd5238e7 ("PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver").
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-and-Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 054aa8d439 ("fget: check that the fd still exists after getting
a ref to it") fixed a race with getting a reference to a file just as it
was being closed. It was a fairly minimal patch, and I didn't think
re-checking the file pointer lookup would be a measurable overhead,
since it was all right there and cached.
But I was wrong, as pointed out by the kernel test robot.
The 'poll2' case of the will-it-scale.per_thread_ops benchmark regressed
quite noticeably. Admittedly it seems to be a very artificial test:
doing "poll()" system calls on regular files in a very tight loop in
multiple threads.
That means that basically all the time is spent just looking up file
descriptors without ever doing anything useful with them (not that doing
'poll()' on a regular file is useful to begin with). And as a result it
shows the extra "re-check fd" cost as a sore thumb.
Happily, the regression is fixable by just writing the code to loook up
the fd to be better and clearer. There's still a cost to verify the
file pointer, but now it's basically in the noise even for that
benchmark that does nothing else - and the code is more understandable
and has better comments too.
[ Side note: this patch is also a classic case of one that looks very
messy with the default greedy Myers diff - it's much more legible with
either the patience of histogram diff algorithm ]
Link: https://lore.kernel.org/lkml/20211210053743.GA36420@xsang-OptiPlex-9020/
Link: https://lore.kernel.org/lkml/20211213083154.GA20853@linux.intel.com/
Reported-by: kernel test robot <oliver.sang@intel.com>
Tested-by: Carel Si <beibei.si@intel.com>
Cc: Jann Horn <jannh@google.com>
Cc: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here are some small USB fixes for 5.16-rc5. They include:
- gadget driver fixes for reported issues
- xhci fixes for reported problems.
- config endpoint parsing fixes for where we got bitfields wrong
Most of these have been in linux-next, the remaining few were not, but
got lots of local testing in my systems and in some cloud testing
infrastructures.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 5.16-rc5. They include:
- gadget driver fixes for reported issues
- xhci fixes for reported problems.
- config endpoint parsing fixes for where we got bitfields wrong
Most of these have been in linux-next, the remaining few were not, but
got lots of local testing in my systems and in some cloud testing
infrastructures"
* tag 'usb-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: core: config: using bit mask instead of individual bits
usb: core: config: fix validation of wMaxPacketValue entries
USB: gadget: zero allocate endpoint 0 buffers
USB: gadget: detect too-big endpoint 0 requests
xhci: avoid race between disable slot command and host runtime suspend
xhci: Remove CONFIG_USB_DEFAULT_PERSIST to prevent xHCI from runtime suspending
Revert "usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default"
Here are a bunch of small char/misc and other driver subsystem fixes for
5.16-rc5
Included in here are:
- iio driver fixes for reported problems.
- phy driver fixes for a number of reported problems.
- mhi resume bugfix for broken hardware
- nvmem driver fix
- rtsx driver fix for irq issues
- fastrpc packet parsing fix
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a bunch of small char/misc and other driver subsystem fixes.
Included in here are:
- iio driver fixes for reported problems
- phy driver fixes for a number of reported problems
- mhi resume bugfix for broken hardware
- nvmem driver fix
- rtsx driver fix for irq issues
- fastrpc packet parsing fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.16-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (33 commits)
bus: mhi: core: Add support for forced PM resume
iio: trigger: stm32-timer: fix MODULE_ALIAS
misc: rtsx: Avoid mangling IRQ during runtime PM
nvmem: eeprom: at25: fix FRAM byte_len
misc: fastrpc: fix improper packet size calculation
MAINTAINERS: add maintainer for Qualcomm FastRPC driver
bus: mhi: pci_generic: Fix device recovery failed issue
iio: adc: stm32: fix null pointer on defer_probe error
phy: HiSilicon: Fix copy and paste bug in error handling
dt-bindings: phy: zynqmp-psgtr: fix USB phy name
phy: ti: omap-usb2: Fix the kernel-doc style
phy: qualcomm: ipq806x-usb: Fix kernel-doc style
iio: at91-sama5d2: Fix incorrect sign extension
iio: adc: axp20x_adc: fix charging current reporting on AXP22x
iio: gyro: adxrs290: fix data signedness
phy: ti: tusb1210: Fix the kernel-doc warn
phy: qualcomm: usb-hsic: Fix the kernel-doc warn
phy: qualcomm: qmp: Add missing struct documentation
phy: mvebu-cp110-utmi: Fix kernel-doc warns
iio: ad7768-1: Call iio_trigger_notify_done() on error
...
- A regression fix for the Designware APB timer. A recent change to the
error checking code transformed the error condition wrongly so it
turned into a fail if good condition.
- Fix a clang build fail of the ARM architected timer driver.
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Merge tag 'timers-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two fixes for clock chip drivers:
- A regression fix for the Designware APB timer. A recent change to
the error checking code transformed the error condition wrongly so
it turned into a fail if good condition.
- Fix a clang build fail of the ARM architected timer driver"
* tag 'timers-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/arm_arch_timer: Force inlining of erratum_set_next_event_generic()
clocksource/drivers/dw_apb_timer_of: Fix probe failure
- Fix the multi vector MSI allocation on Armada 370XP.
- Do interrupt acknowledgement correctly in the aspeed-scu driver.
- Make the IPR register offset correct in the NVIC driver.
- Make redistribution table flushing correct by issueing a SYNC command to
ensure that the invalidation command has been executed.
- Plug a device tree node reference leak in the bcm7210-l2 driver.
- Trivial fixes in the MIPS GIC and the Apple AIC drivers
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Merge tag 'irq-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of interrupt chip driver fixes:
- Fix the multi vector MSI allocation on Armada 370XP
- Do interrupt acknowledgement correctly in the aspeed-scu driver
- Make the IPR register offset correct in the NVIC driver
- Make redistribution table flushing correct by issueing a SYNC
command to ensure that the invalidation command has been executed
- Plug a device tree node reference leak in the bcm7210-l2 driver
- Trivial fixes in the MIPS GIC and the Apple AIC drivers"
* tag 'irq-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/irq-bcm7120-l2: Add put_device() after of_find_device_by_node()
irqchip/irq-gic-v3-its.c: Force synchronisation when issuing INVALL
irqchip/apple-aic: Mark aic_init_smp() as __init
irqchip: nvic: Fix offset for Interrupt Priority Offsets
irqchip/mips-gic: Use bitfield helpers
irqchip/aspeed-scu: Replace update_bits with write_bits.
irqchip/armada-370-xp: Fix support for Multi-MSI interrupts
irqchip/armada-370-xp: Fix return value of armada_370_xp_msi_alloc()
Using cluster topology on hybrid CPUs, e.g. Alder Lake, biases the
scheduler towards the ATOM cluster as that has more total capacity.
Use selection based on CPU priority instead.
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Merge tag 'sched-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
"A single fix for the x86 scheduler topology:
Using cluster topology on hybrid CPUs, e.g. Alder Lake, biases the
scheduler towards the ATOM cluster as that has more total capacity.
Use selection based on CPU priority instead"
* tag 'sched-urgent-2021-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched,x86: Don't use cluster topology for x86 hybrid CPUs
Using standard USB_EP_MAXP_MULT_MASK instead of individual bits for
extracting multiple-transactions bits from wMaxPacketSize value.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20211210085219.16796-2-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The checks performed by commit aed9d65ac3 ("USB: validate
wMaxPacketValue entries in endpoint descriptors") require that initial
value of the maxp variable contains both maximum packet size bits
(10..0) and multiple-transactions bits (12..11). However, the existing
code assings only the maximum packet size bits. This patch assigns all
bits of wMaxPacketSize to the variable.
Fixes: aed9d65ac3 ("USB: validate wMaxPacketValue entries in endpoint descriptors")
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20211210085219.16796-1-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Under some conditions, USB gadget devices can show allocated buffer
contents to a host. Fix this up by zero-allocating them so that any
extra data will all just be zeros.
Reported-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Tested-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sometimes USB hosts can ask for buffers that are too large from endpoint
0, which should not be allowed. If this happens for OUT requests, stall
the endpoint, but for IN requests, trim the request size to the endpoint
buffer size.
Co-developed-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Four fixes, all in drivers. Three are small and obvious, the qedi one
is a bit larger but also pretty obvious.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Four fixes, all in drivers.
Three are small and obvious, the qedi one is a bit larger but also
pretty obvious"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Format log strings only if needed
scsi: scsi_debug: Fix buffer size of REPORT ZONES command
scsi: qedi: Fix cmd_cleanup_cmpl counter mismatch issue
scsi: pm80xx: Do not call scsi_remove_host() in pm8001_alloc()
- Fix a data corruption vector that can result from the ro remount
process failing to clear all speculative preallocations from files
and the rw remount process not noticing the incomplete cleanup.
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Merge tag 'xfs-5.16-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fix from Darrick Wong:
"This fixes a race between a readonly remount process and other
processes that hold a file IOLOCK on files that previously experienced
copy on write, that could result in severe filesystem corruption if
the filesystem is then remounted rw.
I think this is fairly rare (since the only reliable reproducer I have
that fits the second criteria is the experimental xfs_scrub program),
but the race is clear, so we still need to fix this.
Summary:
- Fix a data corruption vector that can result from the ro remount
process failing to clear all speculative preallocations from files
and the rw remount process not noticing the incomplete cleanup"
* tag 'xfs-5.16-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: remove all COW fork extents when remounting readonly
Pull percpu fixes from Dennis Zhou:
"This contains a fix for SMP && !MMU archs for percpu which has been
tested by arm and sh. It seems in the past they have gotten away with
it due to mapping of vm functions to km functions, but this fell apart
a few releases ago and was just reported recently.
The other is just a minor dependency clean up.
I think queued up right now by Andrew is a fix in percpu that papers
of what seems to be a bug in hotplug for a special situation with
memoryless nodes. Michal Hocko is digging into it further"
* 'for-5.16-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
percpu_ref: Replace kernel.h with the necessary inclusions
percpu: km: ensure it is used with NOMMU (either UP or SMP)
- Prevent out-of-bounds access to per sample registers.
- Fix NULL vs IS_ERR_OR_NULL() checking on the python binding.
- Intel PT fixes, half of those are one-liners:
- Fix some PGE (packet generation enable/control flow packets) usage.
- Fix sync state when a PSB (synchronization) packet is found.
- Fix intel_pt_fup_event() assumptions about setting state type.
- Fix state setting when receiving overflow (OVF) packet.
- Fix next 'err' value, walking trace.
- Fix missing 'instruction' events with 'q' option.
- Fix error timestamp setting on the decoder error path.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo:
- Prevent out-of-bounds access to per sample registers.
- Fix NULL vs IS_ERR_OR_NULL() checking on the python binding.
- Intel PT fixes, half of those are one-liners:
- Fix some PGE (packet generation enable/control flow packets) usage.
- Fix sync state when a PSB (synchronization) packet is found.
- Fix intel_pt_fup_event() assumptions about setting state type.
- Fix state setting when receiving overflow (OVF) packet.
- Fix next 'err' value, walking trace.
- Fix missing 'instruction' events with 'q' option.
- Fix error timestamp setting on the decoder error path.
* tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
perf python: Fix NULL vs IS_ERR_OR_NULL() checking
perf intel-pt: Fix error timestamp setting on the decoder error path
perf intel-pt: Fix missing 'instruction' events with 'q' option
perf intel-pt: Fix next 'err' value, walking trace
perf intel-pt: Fix state setting when receiving overflow (OVF) packet
perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
perf tools: Prevent out-of-bounds access to registers
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Merge tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few block fixes that should go into this release:
- NVMe pull request:
- set ana_log_size to 0 after freeing ana_log_buf (Hou Tao)
- show subsys nqn for duplicate cntlids (Keith Busch)
- disable namespace access for unsupported metadata (Keith
Busch)
- report write pointer for a full zone as zone start + zone len
(Niklas Cassel)
- fix use after free when disconnecting a reconnecting ctrl
(Ruozhu Li)
- fix a list corruption in nvmet-tcp (Sagi Grimberg)
- Fix for a regression on DIO single bio async IO (Pavel)
- ioprio seteuid fix (Davidlohr)
- mtd fix that subsequently got reverted as it was broken, will get
re-done and submitted for the next round
- Two MD fixes via Song (Markus, zhangyue)"
* tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
Revert "mtd_blkdevs: don't scan partitions for plain mtdblock"
block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
md: fix double free of mddev->private in autorun_array()
md: fix update super 1.0 on rdev size change
nvmet-tcp: fix possible list corruption for unexpected command failure
block: fix single bio async DIO error handling
nvme: fix use after free when disconnecting a reconnecting ctrl
nvme-multipath: set ana_log_size to 0 after free ana_log_buf
mtd_blkdevs: don't scan partitions for plain mtdblock
nvme: report write pointer for a full zone as zone start + zone len
nvme: disable namespace access for unsupported metadata
nvme: show subsys nqn for duplicate cntlids
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Merge tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"A few fixes that are all bound for stable:
- Two syzbot reports for io-wq that turned out to be separate fixes,
but ultimately very closely related
- io_uring task_work running on cancelations"
* tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
io-wq: check for wq exit after adding new worker task_work
io_uring: ensure task_work gets run as part of cancelations
io-wq: remove spurious bit clear on task_work addition
- Fix qcom mux logic to look at the proper parent table member.
Luckily this clk type isn't very common.
- Don't kill clks on qcom systems that use Trion PLLs that are
enabled out of the bootloader. We will simply skip programming
the PLL rate if it's already done.
- Use the proper clk_ops for the qcom sm6125 ICE clks.
- Use module_platform_driver() in i.MX as it can be a module.
- Fix a UAF in the versatile clk driver on an error path.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk driver fixes from Stephen Boyd:
- Fix qcom mux logic to look at the proper parent table member. Luckily
this clk type isn't very common.
- Don't kill clks on qcom systems that use Trion PLLs that are enabled
out of the bootloader. We will simply skip programming the PLL rate
if it's already done.
- Use the proper clk_ops for the qcom sm6125 ICE clks.
- Use module_platform_driver() in i.MX as it can be a module.
- Fix a UAF in the versatile clk driver on an error path.
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: versatile: clk-icst: use after free on error path
clk: qcom: sm6125-gcc: Swap ops of ice and apps on sdcc1
clk: imx: use module_platform_driver
clk: qcom: clk-alpha-pll: Don't reconfigure running Trion
clk: qcom: regmap-mux: fix parent clock lookup
- Revert schema checks on %.dtb targets. This was problematic for some
external build tools.
- A few DT binding example fixes
- Add back dropped 'enet-phy-lane-no-swap' Ethernet PHY property
- Drop erroneous if/then schema in nxp,imx7-mipi-csi2
- Add a quirk to fix some interrupt controllers use of 'interrupt-map'
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Merge tag 'devicetree-fixes-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Revert schema checks on %.dtb targets. This was problematic for some
external build tools.
- A few DT binding example fixes
- Add back dropped 'enet-phy-lane-no-swap' Ethernet PHY property
- Drop erroneous if/then schema in nxp,imx7-mipi-csi2
- Add a quirk to fix some interrupt controllers use of 'interrupt-map'
* tag 'devicetree-fixes-for-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
Revert "kbuild: Enable DT schema checks for %.dtb targets"
dt-bindings: bq25980: Fixup the example
dt-bindings: input: gpio-keys: Fix interrupts in example
dt-bindings: net: Reintroduce PHY no lane swap binding
dt-bindings: media: nxp,imx7-mipi-csi2: Drop bad if/then schema
of/irq: Add a quirk for controllers with their own definition of interrupt-map
dt-bindings: iio: adc: exynos-adc: Fix node name in example
Merge misc fixes from Andrew Morton:
"21 patches.
Subsystems affected by this patch series: MAINTAINERS, mailmap, and mm
(mlock, pagecache, damon, slub, memcg, hugetlb, and pagecache)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (21 commits)
mm: bdi: initialize bdi_min_ratio when bdi is unregistered
hugetlbfs: fix issue of preallocation of gigantic pages can't work
mm/memcg: relocate mod_objcg_mlstate(), get_obj_stock() and put_obj_stock()
mm/slub: fix endianness bug for alloc/free_traces attributes
selftests/damon: split test cases
selftests/damon: test debugfs file reads/writes with huge count
selftests/damon: test wrong DAMOS condition ranges input
selftests/damon: test DAMON enabling with empty target_ids case
selftests/damon: skip test if DAMON is running
mm/damon/vaddr-test: remove unnecessary variables
mm/damon/vaddr-test: split a test function having >1024 bytes frame size
mm/damon/vaddr: remove an unnecessary warning message
mm/damon/core: remove unnecessary error messages
mm/damon/dbgfs: remove an unnecessary error message
mm/damon/core: use better timer mechanisms selection threshold
mm/damon/core: fix fake load reports due to uninterruptible sleeps
timers: implement usleep_idle_range()
filemap: remove PageHWPoison check from next_uptodate_page()
mailmap: update email address for Guo Ren
MAINTAINERS: update kdump maintainers
...
arm64 architected timer by inlining the
erratum_set_next_event_generic() function (Marc Zyngier)
- Fix probe error on the dw_apb_timer_of driver by fixing the
incorrect condition previously introduced (Alexey Sheplyakov)
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Merge tag 'timers-v5.16-rc4' of https://git.linaro.org/people/daniel.lezcano/linux into timers/urgent
Pull timer fixes from Daniel Lezcano:
- Fix build error with clang and some kernel configuration on the
arm64 architected timer by inlining the
erratum_set_next_event_generic() function (Marc Zyngier)
- Fix probe error on the dw_apb_timer_of driver by fixing the
incorrect condition previously introduced (Alexey Sheplyakov)
Link: https://lore.kernel.org/r/429b796d-9395-4ca8-81f3-30911f80a9a9@linaro.org
The function trace_event__tp_format_id may return ERR_PTR(-ENOMEM). Use
IS_ERR_OR_NULL to check tp_format.
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Link: http://lore.kernel.org/lkml/20211211053856.19827-1-linmq006@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
An error timestamp shows the last known timestamp for the queue, but this
is not updated on the error path. Fix by setting it.
Fixes: f4aa081949 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-8-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
FUP packets contain IP information, which makes them also an 'instruction'
event in 'hop' mode i.e. the itrace 'q' option. That wasn't happening, so
restructure the logic so that FUP events are added along with appropriate
'instruction' and 'branch' events.
Fixes: 7c1b16ba0e ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero,
but it may not be, if arrived at via a 'goto'. Ensure it is zero.
Fixes: 7c1b16ba0e ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
An overflow (OVF packet) is treated as an error because it represents a
loss of trace data, but there is no loss of synchronization, so the packet
state should be INTEL_PT_STATE_IN_SYNC not INTEL_PT_STATE_ERR_RESYNC.
To support that, some additional variables must be reset, and the FUP
packet that may follow OVF is treated as an FUP event.
Fixes: f4aa081949 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
intel_pt_fup_event() assumes it can overwrite the state type if there has
been an FUP event, but this is an unnecessary and unexpected constraint on
callers.
Fix by touching only the state type flags that are affected by an FUP
event.
Fixes: a472e65fc4 ("perf intel-pt: Add decoder support for ptwrite and power event packets")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When syncing, it may be that branch packet generation is not enabled at
that point, in which case there will not immediately be a control-flow
packet, so some packets before a control flow packet turns up, get
ignored. However, the decoder is in sync as soon as a PSB is found, so
the state should be set accordingly.
Fixes: f4aa081949 ("perf tools: Add Intel PT decoder")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Packet generation enable (PGE) refers to whether control flow (COFI)
packets are being produced.
PGE may be false even when branch-tracing is enabled, due to being
out-of-context, or outside a filter address range. Fix some missing PGE
usage.
Fixes: 7c1b16ba0e ("perf intel-pt: Add support for decoding FUP/TIP only")
Fixes: 839598176b ("perf intel-pt: Allow decoding with branch tracing disabled")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The size of the cache of register values is arch-dependant
(PERF_REGS_MAX). This has the potential of causing an out-of-bounds
access in the function "perf_reg_value" if the local architecture
contains less registers than the one the perf.data file was recorded on.
Since the maximum number of registers is bound by the bitmask "u64
cache_mask", and the size of the cache when running under x86 systems is
64 already, fix the size to 64 and add a range-check to the function
"perf_reg_value" to prevent out-of-bounds access.
Reported-by: Alexandre Truong <alexandre.truong@arm.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-csky@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Link: https://lore.kernel.org/r/20211201123334.679131-2-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
- Fix Armada-370-XP Multi-MSi allocation to be aligned on the allocation
size, as required by the PCI spec
- Fix aspeed-scu interrupt acknowledgement by directly writing to the
register instead of a read-modify-write sequence
- Use standard bitfirl helpers in the MIPS GIC driver instead of custom
constructs
- Fix the NVIC driver IPR register offset
- Correctly drop the reference of the device node in the irq-bcm7120-l2
driver
- Fix the GICv3 ITS INVALL command by issueing a following SYNC command
- Add a missing __init attribute to the init function of the Apple AIC
driver
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Merge tag 'irqchip-fixes-5.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip fixes from Marc Zyngier:
- Fix Armada-370-XP Multi-MSi allocation to be aligned on the allocation
size, as required by the PCI spec
- Fix aspeed-scu interrupt acknowledgement by directly writing to the
register instead of a read-modify-write sequence
- Use standard bitfirl helpers in the MIPS GIC driver instead of custom
constructs
- Fix the NVIC driver IPR register offset
- Correctly drop the reference of the device node in the irq-bcm7120-l2
driver
- Fix the GICv3 ITS INVALL command by issueing a following SYNC command
- Add a missing __init attribute to the init function of the Apple AIC
driver
Link: https://lore.kernel.org/r/20211210133516.664497-1-maz@kernel.org
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Merge tag 'for-5.16-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more regression fixes and stable patches, mostly one-liners.
Regression fixes:
- fix pointer/ERR_PTR mismatch returned from memdup_user
- reset dedicated zoned mode relocation block group to avoid using it
and filling it without any recourse
Fixes:
- handle a case to FITRIM range (also to make fstests/generic/260
work)
- fix warning when extent buffer state and pages get out of sync
after an IO error
- fix transaction abort when syncing due to missing mapping error set
on metadata inode after inlining a compressed file
- fix transaction abort due to tree-log and zoned mode interacting in
an unexpected way
- fix memory leak of additional extent data when qgroup reservation
fails
- do proper handling of slot search call when deleting root refs"
* tag 'for-5.16-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: replace the BUG_ON in btrfs_del_root_ref with proper error handling
btrfs: zoned: clear data relocation bg on zone finish
btrfs: free exchange changeset on failures
btrfs: fix re-dirty process of tree-log nodes
btrfs: call mapping_set_error() on btree inode with a write error
btrfs: clear extent buffer uptodate when we fail to write it
btrfs: fail if fstrim_range->start == U64_MAX
btrfs: fix error pointer dereference in btrfs_ioctl_rm_dev_v2()
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Merge tag '5.16-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Two cifs/smb3 fixes - one for stable, the other fixes a recently
reported NTLMSSP auth problem"
* tag '5.16-rc4-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix ntlmssp auth when there is no key exchange
cifs: Fix crash on unload of cifs_arc4.ko
has been around for years, but I suspect recent changes may have
widened the race window a little, so I'd like to go ahead and get it in.
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Merge tag 'nfsd-5.16-2' of git://linux-nfs.org/~bfields/linux
Pull nfsd fixes from Bruce Fields:
"Fix a race on startup and another in the delegation code.
The latter has been around for years, but I suspect recent changes may
have widened the race window a little, so I'd like to go ahead and get
it in"
* tag 'nfsd-5.16-2' of git://linux-nfs.org/~bfields/linux:
nfsd: fix use-after-free due to delegation race
nfsd: Fix nsfd startup race (again)
Initialize min_ratio if it is set during bdi unregistration. This can
prevent problems that may occur a when bdi is removed without resetting
min_ratio.
For example.
1) insert external sdcard
2) set external sdcard's min_ratio 70
3) remove external sdcard without setting min_ratio 0
4) insert external sdcard
5) set external sdcard's min_ratio 70 << error occur(can't set)
Because when an sdcard is removed, the present bdi_min_ratio value will
remain. Currently, the only way to reset bdi_min_ratio is to reboot.
[akpm@linux-foundation.org: tweak comment and coding style]
Link: https://lkml.kernel.org/r/20211021161942.5983-1-mj0123.lee@samsung.com
Signed-off-by: Manjong Lee <mj0123.lee@samsung.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Changheun Lee <nanich.lee@samsung.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: <seunghwan.hyun@samsung.com>
Cc: <sookwan7.kim@samsung.com>
Cc: <yt0928.kim@samsung.com>
Cc: <junho89.kim@samsung.com>
Cc: <jisoo2146.oh@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Preallocation of gigantic pages can't work bacause of commit
b5389086ad ("hugetlbfs: extend the definition of hugepages parameter
to support node allocation"). When nid is NUMA_NO_NODE(-1),
alloc_bootmem_huge_page will always return without doing allocation.
Fix this by adding more check.
Link: https://lkml.kernel.org/r/20211129133803.15653-1-yaozhenguo1@gmail.com
Fixes: b5389086ad ("hugetlbfs: extend the definition of hugepages parameter to support node allocation")
Signed-off-by: Zhenguo Yao <yaozhenguo1@gmail.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Tested-by: Maxim Levitsky <mlevitsk@redhat.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
All the calls to mod_objcg_mlstate(), get_obj_stock() and
put_obj_stock() are done by functions defined within the same "#ifdef
CONFIG_MEMCG_KMEM" compilation block. When CONFIG_MEMCG_KMEM isn't
defined, the following compilation warnings will be issued [1] and [2].
mm/memcontrol.c:785:20: warning: unused function 'mod_objcg_mlstate'
mm/memcontrol.c:2113:33: warning: unused function 'get_obj_stock'
Fix these warning by moving those functions to under the same
CONFIG_MEMCG_KMEM compilation block. There is no functional change.
[1] https://lore.kernel.org/lkml/202111272014.WOYNLUV6-lkp@intel.com/
[2] https://lore.kernel.org/lkml/202111280551.LXsWYt1T-lkp@intel.com/
Link: https://lkml.kernel.org/r/20211129161140.306488-1-longman@redhat.com
Fixes: 559271146e ("mm/memcg: optimize user context object stock access")
Fixes: 68ac5b3c8d ("mm/memcg: cache vmstat data in percpu memcg_stock_pcp")
Signed-off-by: Waiman Long <longman@redhat.com>
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On big-endian s390, the alloc/free_traces attributes produce endless
output, because of always 0 idx in slab_debugfs_show().
idx is de-referenced from *v, which points to a loff_t value, with
unsigned int idx = *(unsigned int *)v;
This will only give the upper 32 bits on big-endian, which remain 0.
Instead of only fixing this de-reference, during discussion it seemed
more appropriate to change the seq_ops so that they use an explicit
iterator in private loc_track struct.
This patch adds idx to loc_track, which will also fix the endianness
bug.
Link: https://lore.kernel.org/r/20211117193932.4049412-1-gerald.schaefer@linux.ibm.com
Link: https://lkml.kernel.org/r/20211126171848.17534-1-gerald.schaefer@linux.ibm.com
Fixes: 64dd68497b ("mm: slub: move sysfs slab alloc/free interfaces to debugfs")
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Reported-by: Steffen Maier <maier@linux.ibm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently, the single test program, debugfs.sh, contains all test cases
for DAMON. When one of the cases fails, finding which case is failed
from the test log is not so easy, and all remaining tests will be
skipped. To improve the situation, this commit splits the single
program into small test programs having their own names.
Link: https://lkml.kernel.org/r/20211201150440.1088-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DAMON debugfs interface users were able to trigger warning by writing
some files with arbitrarily large 'count' parameter. The issue is fixed
with commit db7a347b26 ("mm/damon/dbgfs: use '__GFP_NOWARN' for
user-specified size buffer allocation"). This commit adds a test case
for the issue in DAMON selftests to avoid future regressions.
Link: https://lkml.kernel.org/r/20211201150440.1088-11-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DAMON debugfs didn't check empty targets when starting monitoring, and
the issue is fixed with commit b5ca3e83dd ("mm/damon/dbgfs: add
adaptive_targets list check before enable monitor_on"). To avoid future
regression, this commit adds a test case for that in DAMON selftests.
Link: https://lkml.kernel.org/r/20211201150440.1088-9-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Testing the DAMON debugfs files while DAMON is running makes no sense,
as any write to the debugfs files will fail. This commit makes the test
be skipped in this case.
Link: https://lkml.kernel.org/r/20211201150440.1088-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A couple of test functions in DAMON virtual address space monitoring
primitives implementation has unnecessary damon_ctx variables. This
commit removes those.
Link: https://lkml.kernel.org/r/20211201150440.1088-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On some configuration[1], 'damon_test_split_evenly()' kunit test
function has >1024 bytes frame size, so below build warning is
triggered:
CC mm/damon/vaddr.o
In file included from mm/damon/vaddr.c:672:
mm/damon/vaddr-test.h: In function 'damon_test_split_evenly':
mm/damon/vaddr-test.h:309:1: warning: the frame size of 1064 bytes is larger than 1024 bytes [-Wframe-larger-than=]
309 | }
| ^
This commit fixes the warning by separating the common logic in the
function.
[1] https://lore.kernel.org/linux-mm/202111182146.OV3C4uGr-lkp@intel.com/
Link: https://lkml.kernel.org/r/20211201150440.1088-6-sj@kernel.org
Fixes: 17ccae8bb5 ("mm/damon: add kunit tests")
Signed-off-by: SeongJae Park <sj@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
