NUMA
Prevent out of bounds access in numa_node override (Mathias Krause)
HiSilicon host bridge driver
Fix deferred probing (Arnd Bergmann)
Synopsys DesignWare host bridge driver
Remove incorrect io_base assignment (Stanimir Varbanov)
Move align_resource function pointer to pci_host_bridge structure (Gabriele Paoloni)
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Merge tag 'pci-v4.4-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"Here are a few fixes I'd like to have in v4.4: a generic one for sysfs
and three for HiSilicon and DesignWare host controllers.
Summary:
NUMA:
- Prevent out of bounds access in numa_node override (Mathias Krause)
HiSilicon host bridge driver:
- Fix deferred probing (Arnd Bergmann)
Synopsys DesignWare host bridge driver:
- Remove incorrect io_base assignment (Stanimir Varbanov)
- Move align_resource function pointer to pci_host_bridge structure
(Gabriele Paoloni)"
* tag 'pci-v4.4-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
ARM/PCI: Move align_resource function pointer to pci_host_bridge structure
PCI: hisi: Fix deferred probing
PCI: designware: Remove incorrect io_base assignment
PCI: Prevent out of bounds access in numa_node override
Highlights include:
Stable patches:
- Fix a NFSv4 callback identifier leak that was also causing client crashes
- Fix NFSv4 callback decoding issues when incoming requests are truncated
- Don't declare the attribute cache valid when we call nfs_update_inode with
an empty attribute structure.
- Resend LAYOUTGET when there is a race that changes the seqid
Bugfixes:
- Fix a number of issues with the NFSv4.2 CLONE ioctl()
- Properly set NFS v4.2 NFSDBG_FACILITY
- NFSv4 referrals are broken; Cleanup FATTR4_WORD0_FS_LOCATIONS after
decoding success
- Use sliding delay when LAYOUTGET gets NFS4ERR_DELAY
- Ensure that attrcache is revalidated after a SETATTR
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Merge tag 'nfs-for-4.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable patches:
- Fix a NFSv4 callback identifier leak that was also causing client
crashes
- Fix NFSv4 callback decoding issues when incoming requests are
truncated
- Don't declare the attribute cache valid when we call
nfs_update_inode with an empty attribute structure.
- Resend LAYOUTGET when there is a race that changes the seqid
Bugfixes:
- Fix a number of issues with the NFSv4.2 CLONE ioctl()
- Properly set NFS v4.2 NFSDBG_FACILITY
- NFSv4 referrals are broken; Cleanup FATTR4_WORD0_FS_LOCATIONS after
decoding success
- Use sliding delay when LAYOUTGET gets NFS4ERR_DELAY
- Ensure that attrcache is revalidated after a SETATTR"
* tag 'nfs-for-4.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs4: resend LAYOUTGET when there is a race that changes the seqid
nfs: if we have no valid attrs, then don't declare the attribute cache valid
nfs: ensure that attrcache is revalidated after a SETATTR
nfs4: limit callback decoding to received bytes
nfs4: start callback_ident at idr 1
nfs: use sliding delay when LAYOUTGET gets NFS4ERR_DELAY
NFS4: Cleanup FATTR4_WORD0_FS_LOCATIONS after decoding success
NFS: Properly set NFS v4.2 NFSDBG_FACILITY
nfs: reduce the amount of ifdefs for v4.2 in nfs4file.c
nfs: use btrfs ioctl defintions for clone
nfs: allow intra-file CLONE
nfs: offer native ioctls even if CONFIG_COMPAT is set
nfs: pass on count for CLONE operations
Pull watchdog fixes from Wim Van Sebroeck:
- a null pointer dereference fix for omap_wdt
- some clock related fixes for pnx4008
- an underflow fix in wdt_set_timeout() for w83977f_wdt
- restart fix for tegra wdt
- Kconfig change to support Freescale Layerscape platforms
- fix for stopping the mtk_wdt watchdog
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: mtk_wdt: Use MODE_KEY when stopping the watchdog
watchdog: Add support for Freescale Layerscape platforms
watchdog: tegra: Stop watchdog first if restarting
watchdog: w83977f_wdt: underflow in wdt_set_timeout()
watchdog: pnx4008: make global wdt_clk static
watchdog: pnx4008: fix warnings caused by enabling unprepared clock
watchdog: omap_wdt: fix null pointer dereference
Pull btrfs fixes from Chris Mason:
"This has Mark Fasheh's patches to fix quota accounting during subvol
deletion, which we've been working on for a while now. The patch is
pretty small but it's a key fix.
Otherwise it's a random assortment"
* 'for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: fix balance range usage filters in 4.4-rc
btrfs: qgroup: account shared subtree during snapshot delete
Btrfs: use btrfs_get_fs_root in resolve_indirect_ref
btrfs: qgroup: fix quota disable during rescan
Btrfs: fix race between cleaner kthread and space cache writeout
Btrfs: fix scrub preventing unused block groups from being deleted
Btrfs: fix race between scrub and block group deletion
btrfs: fix rcu warning during device replace
btrfs: Continue replace when set_block_ro failed
btrfs: fix clashing number of the enhanced balance usage filter
Btrfs: fix the number of transaction units needed to remove a block group
Btrfs: use global reserve when deleting unused block group after ENOSPC
Btrfs: tests: checking for NULL instead of IS_ERR()
btrfs: fix signed overflows in btrfs_sync_file
Pull security layer fixes from James Morris:
"A fix for SELinux policy processing (regression introduced by
commit fa1aa143ac: "selinux: extended permissions for ioctls"), as
well as a fix for the user-triggerable oops in the Keys code"
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
KEYS: Fix handling of stored error in a negatively instantiated user key
selinux: fix bug in conditional rules handling
There is a small backlog of at91 patches here, the most significant is
the addition of some sama5d2 Xplained nodes that were waiting on an MFD include
file to get merged through another tree. We normally try to sort those out
before the merge window opens, but the maintainer wasn't aware of that here
and I decided to merge the changes this time as an exception.
On OMAP a series of audio changes for dra7 missed the merge window but turned
out to be necessary to fix a boot time imprecise external abort error and to
get audio working.
The other changes are the usual simple changes, here is a list sorted by
platform:
at91:
removal of a useless defconfig option
removal of some legacy DT pieces
use of the proper watchdog compatible string
update of the MAINTAINERS entries for some Atmel drivers
drivers/scpi:
hide get_scpi_ops in module from built-in code
imx:
add missing .irq_set_type for i.MX GPC irq_chip.
fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
fix a merge error in Vybrid dts regarding to ADC device property
keystone:
fix the optional PDSP firmware loading
fix linking RAM setup for QMs
fix crash with clk_ignore_unused
mediatek:
Enable SCPSYS power domain driver by default
mvebu:
fix QNAP TS219 power-off in dts
fix legacy get_irqnr_and_base for dove and orion5x
omap:
fix l4 related boot time errors for dm81xx
use lockless cldm/pwrdm api in omap4_boot_secondary
remove t410 abort handler to avoid hiding other critical errors
mark cpuidle tracepoints as _rcuidle
fix module alias for omap-ocp2scp
pxa:
palm: Fix typos in PWM lookup table code
renesas:
missing __initconst annotation for r8a7793_boards_compat_dt
rockchip:
disable mmc-tuning on the veyron-minnie board
adding the init state for the over-temperature-protection
zx:
only build power domain code when CONFIG_PM=y
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"There is a small backlog of at91 patches here, the most significant is
the addition of some sama5d2 Xplained nodes that were waiting on an
MFD include file to get merged through another tree.
We normally try to sort those out before the merge window opens, but
the maintainer wasn't aware of that here and I decided to merge the
changes this time as an exception.
On OMAP a series of audio changes for dra7 missed the merge window but
turned out to be necessary to fix a boot time imprecise external abort
error and to get audio working.
The other changes are the usual simple changes, here is a list sorted
by platform:
at91:
removal of a useless defconfig option
removal of some legacy DT pieces
use of the proper watchdog compatible string
update of the MAINTAINERS entries for some Atmel drivers
drivers/scpi:
hide get_scpi_ops in module from built-in code
imx:
add missing .irq_set_type for i.MX GPC irq_chip.
fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
fix a merge error in Vybrid dts regarding to ADC device property
keystone:
fix the optional PDSP firmware loading
fix linking RAM setup for QMs
fix crash with clk_ignore_unused
mediatek:
Enable SCPSYS power domain driver by default
mvebu:
fix QNAP TS219 power-off in dts
fix legacy get_irqnr_and_base for dove and orion5x
omap:
fix l4 related boot time errors for dm81xx
use lockless cldm/pwrdm api in omap4_boot_secondary
remove t410 abort handler to avoid hiding other critical errors
mark cpuidle tracepoints as _rcuidle
fix module alias for omap-ocp2scp
pxa:
palm: Fix typos in PWM lookup table code
renesas:
missing __initconst annotation for r8a7793_boards_compat_dt
rockchip:
disable mmc-tuning on the veyron-minnie board
adding the init state for the over-temperature-protection
zx:
only build power domain code when CONFIG_PM=y"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
ARM: OMAP4+: SMP: use lockless clkdm/pwrdm api in omap4_boot_secondary
arm: omap2+: add missing HWMOD_NO_IDLEST in 81xx hwmod data
ARM: orion5x: Fix legacy get_irqnr_and_base
ARM: dove: Fix legacy get_irqnr_and_base
soc: Mediatek: Enable SCPSYS power domain driver by default
ARM: dts: vfxxx: Fix dspi[01] spi-num-chipselects.
ARM: dts: keystone: k2l: fix kernel crash when clk_ignore_unused is not in bootargs
soc: ti: knav_qmss_queue: Fix linking RAM setup for queue managers
soc: ti: use request_firmware_direct() as acc firmware is optional
ARM: imx: add platform irq type setting in gpc
ARM: dts: vfxxx: Fix erroneous property in esdhc0 node
ARM: shmobile: r8a7793: proper constness with __initconst
scpi: hide get_scpi_ops in module from built-in code
ARM: zx: only build power domain code when CONFIG_PM=y
ARM: pxa: palm: Fix typos in PWM lookup table code
ARM: dts: Kirkwood: Fix QNAP TS219 power-off
ARM: dts: rockchip: Add OTP gpio pinctrl to rk3288 tsadc node
ARM: dts: rockchip: temporarily remove emmc hs200 speed from rk3288 minnie
MAINTAINERS: Atmel drivers: change NAND and ISI entries
ARM: at91/dt: sama5d2 Xplained: add several devices
...
- Fix a recent regression in the cpufreq core causing it to fail
to clean up sysfs directories properly on cpufreq driver removal
(Viresh Kumar).
- Fix a build problem in the SCPI support code recently added to
the arm_big_little cpufreq driver (Punit Agrawal).
- Fix up the recently added CPPC cpufreq frontend to process the
CPU coordination information provided by the platform firmware
correctly (Ashwin Chaugule).
- Fix the intel_pstate driver to behave as intended when switched
over to the "performance" mode via sysfs if hardware-driven
P-state selection (HWP) is enabled (Alexandra Yates).
- Fix two rounding errors in the intel_pstate driver that sometimes
cause it to use lower P-states than requested (Prarit Bhargava).
/
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Merge tag 'pm+acpi-4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management and ACPI fixes from Rafael Wysocki:
"These fix one recent regression (cpufreq core), fix up two features
added recently (ACPI CPPC support, SCPI support in the arm_big_little
cpufreq driver) and fix three older bugs in the intel_pstate driver.
Specifics:
- Fix a recent regression in the cpufreq core causing it to fail to
clean up sysfs directories properly on cpufreq driver removal
(Viresh Kumar).
- Fix a build problem in the SCPI support code recently added to the
arm_big_little cpufreq driver (Punit Agrawal).
- Fix up the recently added CPPC cpufreq frontend to process the CPU
coordination information provided by the platform firmware
correctly (Ashwin Chaugule).
- Fix the intel_pstate driver to behave as intended when switched
over to the "performance" mode via sysfs if hardware-driven P-state
selection (HWP) is enabled (Alexandra Yates).
- Fix two rounding errors in the intel_pstate driver that sometimes
cause it to use lower P-states than requested (Prarit Bhargava)"
* tag 'pm+acpi-4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
intel_pstate: Fix "performance" mode behavior with HWP enabled
cpufreq: SCPI: Depend on SCPI clk driver
cpufreq: intel_pstate: Fix limits->max_perf rounding error
cpufreq: intel_pstate: Fix limits->max_policy_pct rounding error
cpufreq: Always remove sysfs cpuX/cpufreq link on ->remove_dev()
cpufreq: CPPC: Initialize and check CPUFreq CPU co-ord type correctly
Ben Skeggs wrote:
A couple of regression fixes, some more boards whitelisted for a hw bug
workaround, gr/ucode fixes for hangs a user is seeing.
The changes look larger than they actually are due to the ucode binaries
(*.fucN.h) being regenerated.
* 'linux-4.4' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nouveau/volt/pwm/gk104: fix an off-by-one resulting in the voltage not being set
drm/nouveau/nvif: allow userspace access to its own client object
drm/nouveau/gr/gf100-: fix oops when calling zbc methods
drm/nouveau/gr/gf117-: assume no PPC if NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK is zero
drm/nouveau/gr/gf117-: read NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK from correct GPC
drm/nouveau/gr/gf100-: split out per-gpc address calculation macro
drm/nouveau/bios: return actual size of the buffer retrieved via _ROM
drm/nouveau/instmem: protect instobj list with a spinlock
drm/nouveau/pci: enable c800 magic for some unknown Samsung laptop
drm/nouveau/pci: enable c800 magic for Clevo P157SM
Here are no big surprises but just all small fixes, mostly
device-specific quirks for HD-audio and USB-audio:
- Fix for detection of FireWire DICE Loud devices
- Intel Broxton HDMI/DP PCI IDs and relevant quirks
- Noise fixes: Dell XPS13 2015 model, Dell Latitude E6440, Gigabyte
Z170X mobo
- Fix the headphone mixer assignment on HP laptops for PulseAudio
- USB-MIDI fixes for Medeli DD305 and CH345
- Apply fixup for Acer Aspire One Cloudbook 14
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Merge tag 'sound-4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are no big surprises but just all small fixes, mostly
device-specific quirks for HD-audio and USB-audio:
- Fix for detection of FireWire DICE Loud devices
- Intel Broxton HDMI/DP PCI IDs and relevant quirks
- Noise fixes: Dell XPS13 2015 model, Dell Latitude E6440, Gigabyte
Z170X mobo
- Fix the headphone mixer assignment on HP laptops for PulseAudio
- USB-MIDI fixes for Medeli DD305 and CH345
- Apply fixup for Acer Aspire One Cloudbook 14"
* tag 'sound-4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix noise on Gigabyte Z170X mobo
ALSA: hda - Fix headphone noise after Dell XPS 13 resume back from S3
ALSA: hda - Apply HP headphone fixups more generically
ALSA: hda - Add fixup for Acer Aspire One Cloudbook 14
ALSA: hda - apply SKL display power request/release patch to BXT
ALSA: hda - add PCI IDs for Intel Broxton
ALSA: usb-audio: work around CH345 input SysEx corruption
ALSA: usb-audio: prevent CH345 multiport output SysEx corruption
ALSA: usb-audio: add packet size quirk for the Medeli DD305
ALSA: dice: fix detection of Loud devices
ALSA: hda - Fix noise on Dell Latitude E6440
- Build fix when !CONFIG_UID16 (the patch is touching generic files but
it only affects arm64 builds; submitted by Arnd Bergmann)
- EFI fixes to deal with early_memremap() returning NULL and correctly
mapping run-time regions
- Fix CPUID register extraction of unsigned fields (not to be
sign-extended)
- ASID allocator fix to deal with long-running tasks over multiple
generation roll-overs
- Revert support for marking page ranges as contiguous PTEs (it leads to
TLB conflicts and requires additional non-trivial kernel changes)
- Proper early_alloc() failure check
- Disable KASan for 48-bit VA and 16KB page configuration (the pgd is
larger than the KASan shadow memory)
- Update the fault_info table (original descriptions based on early
engineering spec)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Build fix when !CONFIG_UID16 (the patch is touching generic files but
it only affects arm64 builds; submitted by Arnd Bergmann)
- EFI fixes to deal with early_memremap() returning NULL and correctly
mapping run-time regions
- Fix CPUID register extraction of unsigned fields (not to be
sign-extended)
- ASID allocator fix to deal with long-running tasks over multiple
generation roll-overs
- Revert support for marking page ranges as contiguous PTEs (it leads
to TLB conflicts and requires additional non-trivial kernel changes)
- Proper early_alloc() failure check
- Disable KASan for 48-bit VA and 16KB page configuration (the pgd is
larger than the KASan shadow memory)
- Update the fault_info table (original descriptions based on early
engineering spec)
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: efi: fix initcall return values
arm64: efi: deal with NULL return value of early_memremap()
arm64: debug: Treat the BRPs/WRPs as unsigned
arm64: cpufeature: Track unsigned fields
arm64: cpufeature: Add helpers for extracting unsigned values
Revert "arm64: Mark kernel page ranges contiguous"
arm64: mm: keep reserved ASIDs in sync with mm after multiple rollovers
arm64: KASAN depends on !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
arm64: efi: correctly map runtime regions
arm64: mm: fix fault_info table xFSC decoding
arm64: fix building without CONFIG_UID16
arm64: early_alloc: Fix check for allocation failure
GCC 4.1 and newer remove empty loops. This becomes a problem when delay
loops get removed. Fixed by rewriting to user the proper Linux interface
for such delays.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: John Crispin <blogic@openwrt.org>
- Fix for perf callgraph unwinding causing RCU stalls
- Fix to enable Linux to run on non-default Interrupt priority 0
- Removal of pointless SYNC from __switch_to()
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Merge tag 'arc-4.4-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- Fix for perf callgraph unwinding causing RCU stalls
- Fix to enable Linux to run on non-default Interrupt priority 0
- Removal of pointless SYNC from __switch_to()
* tag 'arc-4.4-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: dw2 unwind: Remove falllback linear search thru FDE entries
ARC: remove SYNC from __switch_to()
ARCv2: Use the default irq priority for idle sleep
ARC: Abstract out ISA specific SLEEP args
ARC: comments update
ARC: switch to arc-linux- CROSS_COMPILE prefix across all configs
on the veyron-minnie board for now and adding the init state for
the over-temperature-protection to prevent glitches making the
system reboot sometimes.
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Merge tag 'v4.4-rockchip-dts32-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes
Merge "ARM: rockchip: devicetree fixes for 4.4" from Heiko Stuebner:
Two fixes to Rockchip devicetree files, disabling the mmc-tuning
on the veyron-minnie board for now and adding the init state for
the over-temperature-protection to prevent glitches making the
system reboot sometimes.
* tag 'v4.4-rockchip-dts32-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
ARM: dts: rockchip: Add OTP gpio pinctrl to rk3288 tsadc node
ARM: dts: rockchip: temporarily remove emmc hs200 speed from rk3288 minnie
* r8a7793 SoC: Annotate r8a7793_boards_compat_dt with __initconst
Aside from being correct this builds that otherwise
fail with section mismatch errors.
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Merge tag 'renesas-fixes-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
Merge "Renesas ARM Based SoC Fixes for v4.4" from Simon Horman:
* r8a7793 SoC: Annotate r8a7793_boards_compat_dt with __initconst
Aside from being correct this builds that otherwise
fail with section mismatch errors.
* tag 'renesas-fixes-for-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7793: proper constness with __initconst
- Fix gntdev and numa balancing.
- Fix x86 boot crash due to unallocated legacy irq descs.
- Fix overflow in evtchn device when > 1024 event channels.
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Merge tag 'for-linus-4.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen bug fixes from David Vrabel:
- Fix gntdev and numa balancing.
- Fix x86 boot crash due to unallocated legacy irq descs.
- Fix overflow in evtchn device when > 1024 event channels.
* tag 'for-linus-4.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/evtchn: dynamically grow pending event channel ring
xen/events: Always allocate legacy interrupts on PV guests
xen/gntdev: Grant maps should not be subject to NUMA balancing
- tm: Block signal return from setting invalid MSR state from Michael Neuling
- tm: Check for already reclaimed tasks from Michael Neuling
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Merge tag 'powerpc-4.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- tm: Block signal return from setting invalid MSR state from Michael
Neuling
- tm: Check for already reclaimed tasks from Michael Neuling
* tag 'powerpc-4.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/tm: Check for already reclaimed tasks
powerpc/tm: Block signal return setting invalid MSR state
If more than 1024 event channels are bound to a evtchn device then it
possible (even with well behaved applications) for the ring to
overflow and events to be lost (reported as an -EFBIG error).
Dynamically increase the size of the ring so there is always enough
space for all bound events. Well behaved applicables that only unmask
events after draining them from the ring can thus no longer lose
events.
However, an application could unmask an event before draining it,
allowing multiple entries per port to accumulate in the ring, and a
overflow could still occur. So the overflow detection and reporting
is retained.
The ring size is initially only 64 entries so the common use case of
an application only binding a few events will use less memory than
before. The ring size may grow to 512 KiB (enough for all 2^17
possible channels). This order 7 kmalloc() may fail due to memory
fragmentation, so we fall back to trying vmalloc().
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
Even though initcall return values are typically ignored, the
prototype is to return 0 on success or a negative errno value on
error. So fix the arm_enable_runtime_services() implementation to
return 0 on conditions that are not in fact errors, and return a
meaningful error code otherwise.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Add NULL return value checks to two invocations of early_memremap()
in the UEFI init code. For the UEFI configuration tables, we just
warn since we have a better chance of being able to report the issue
in a way that can actually be noticed by a human operator if we don't
abort right away. For the UEFI memory map, however, all we can do is
panic() since we cannot proceed without a description of memory.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
IDAA64DFR0_EL1: BRPs and WRPs are unsigned values. Use
the appropriate helpers to extract those fields.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reported-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Some of the feature bits have unsigned values and need
to be treated accordingly to avoid errors. Adds the property
to the feature bits and use the appropriate field extract helpers.
Reported-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
After commit 8c058b0b9c ("x86/irq: Probe for PIC presence before
allocating descs for legacy IRQs") early_irq_init() will no longer
preallocate descriptors for legacy interrupts if PIC does not
exist, which is the case for Xen PV guests.
Therefore we may need to allocate those descriptors ourselves.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
The cpuid_feature_extract_field() extracts the feature value
as a signed integer. This could be problematic for features
whose values are unsigned. e.g, ID_AA64DFR0_EL1:BRPs. Add
an unsigned variant for the unsigned fields.
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reported-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Doing so will cause the grant to be unmapped and then, during
fault handling, the fault to be mistakenly treated as NUMA hint
fault.
In addition, even if those maps could partcipate in NUMA
balancing, it wouldn't provide any benefit since we are unable
to determine physical page's node (even if/when VNUMA is
implemented).
Marking grant maps' VMAs as VM_IO will exclude them from being
part of NUMA balancing.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
With the actual code, read_alarm() always returns -EINVAL when called
during the RTC device registration. This prevents from retrieving an
already configured alarm in hardware.
This patch fixes the issue by moving the HAS_ALARM bit configuration
(if supported by the hardware) above the rtc_device_register() call.
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This reverts commit 348a65cdcb.
Incorrect page table manipulation that does not respect the ARM ARM
recommended break-before-make sequence may lead to TLB conflicts. The
contiguous PTE patch makes the system even more susceptible to such
errors by changing the mapping from a single page to a contiguous range
of pages. An additional TLB invalidation would reduce the risk window,
however, the correct fix is to switch to a temporary swapper_pg_dir.
Once the correct workaround is done, the reverted commit will be
re-applied.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Jeremy Linton <jeremy.linton@arm.com>
Under some unusual context-switching patterns, it is possible to end up
with multiple threads from the same mm running concurrently with
different ASIDs:
1. CPU x schedules task t with mm p containing ASID a and generation g
This task doesn't block and the CPU doesn't context switch.
So:
* per_cpu(active_asid, x) = {g,a}
* p->context.id = {g,a}
2. Some other CPU generates an ASID rollover. The global generation is
now (g + 1). CPU x is still running t, with no context switch and
so per_cpu(reserved_asid, x) = {g,a}
3. CPU y schedules task t', which shares mm p with t. The generation
mismatches, so we take the slowpath and hit the reserved ASID from
CPU x. p is then updated so that p->context.id = {g + 1,a}
4. CPU y schedules some other task u, which has an mm != p.
5. Some other CPU generates *another* CPU rollover. The global
generation is now (g + 2). CPU x is still running t, with no context
switch and so per_cpu(reserved_asid, x) = {g,a}.
6. CPU y once again schedules task t', but now *fails* to hit the
reserved ASID from CPU x because of the generation mismatch. This
results in a new ASID being allocated, despite the fact that t is
still running on CPU x with the same mm.
Consequently, TLBIs (e.g. as a result of CoW) will not be synchronised
between the two threads.
This patch fixes the problem by updating all of the matching reserved
ASIDs when we hit on the slowpath (i.e. in step 3 above). This keeps
the reserved ASIDs in-sync with the mm and avoids the problem.
Reported-by: Tony Thompson <anthony.thompson@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
On KASAN + 16K_PAGES + 48BIT_VA
arch/arm64/mm/kasan_init.c: In function ‘kasan_early_init’:
include/linux/compiler.h:484:38: error: call to ‘__compiletime_assert_95’ declared with attribute error: BUILD_BUG_ON failed: !IS_ALIGNED(KASAN_SHADOW_END, PGDIR_SIZE)
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
Currently KASAN will not work on 16K_PAGES and 48BIT_VA, so
forbid such configuration to avoid above build failure.
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reported-by: Suzuki K. Poulose <Suzuki.Poulose@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Pull vfs fixes from Al Viro:
"A couple of fixes for sendfile lockups caught by Dmitry + a fix for
ancient sysvfs symlink breakage"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
vfs: Avoid softlockups with sendfile(2)
vfs: Make sendfile(2) killable even better
fix sysvfs symlinks
- A series of audio changes for dra7 that missed the merge window but turned
out to be necessary to fix a boot time imprecise external abort error and to
getaudio working
- Fix l4 related boot time errors for dm81xx
- Use lockless cldm/pwrdm api in omap4_boot_secondary
- Remove t410 custom abort handler that is no longer needed and may
hide other critical errors
- Mark cpuidle tracepoints as _rcuidle
- Fix module alias for omap-ocp2scp
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Merge tag 'omap-for-v4.4/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Merge "Fixes for omaps for v4.4-rc cycle" from Tony Lindgren:
- A series of audio changes for dra7 that missed the merge window but turned
out to be necessary to fix a boot time imprecise external abort error and to
getaudio working
- Fix l4 related boot time errors for dm81xx
- Use lockless cldm/pwrdm api in omap4_boot_secondary
- Remove t410 custom abort handler that is no longer needed and may
hide other critical errors
- Mark cpuidle tracepoints as _rcuidle
- Fix module alias for omap-ocp2scp
* tag 'omap-for-v4.4/fixes-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP4+: SMP: use lockless clkdm/pwrdm api in omap4_boot_secondary
arm: omap2+: add missing HWMOD_NO_IDLEST in 81xx hwmod data
ARM: OMAP2+: remove custom abort handler for t410
ARM: OMAP: DRA7: hwmod: Add data for McASP3
ARM: OMAP2+: hwmod: Add hwmod flag for HWMOD_OPT_CLKS_NEEDED
ARM: dts: dra7: Fix McASP3 node regarding to clocks
bus: omap-ocp2scp: Fix module alias
ARM: OMAP2+: PM: Denote the cpuidle tracepoints as _rcuidle()
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Merge tag 'v4.4-rc2' into fixes
Linux 4.4-rc2 is backmerged from the keystone fixes.
- Add missing .irq_set_type for i.MX GPC irq_chip. It fixes an issue
that device IRQ type setting doesn't match the one specified in device
tree, since stacked IRQ domain is adopted in GPC driver.
- Fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
- Fix a merge error in Vybrid dts regarding to ADC device property
fsl,adck-max-frequency
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Merge tag 'imx-fixes-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
Merge "The i.MX fixes for 4.4" from Shawn Guo:
- Add missing .irq_set_type for i.MX GPC irq_chip. It fixes an issue
that device IRQ type setting doesn't match the one specified in device
tree, since stacked IRQ domain is adopted in GPC driver.
- Fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
- Fix a merge error in Vybrid dts regarding to ADC device property
fsl,adck-max-frequency
* tag 'imx-fixes-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: vfxxx: Fix dspi[01] spi-num-chipselects.
ARM: imx: add platform irq type setting in gpc
ARM: dts: vfxxx: Fix erroneous property in esdhc0 node
If hardware-driven P-state selection (HWP) is enabled, the
"performance" mode of intel_pstate should only allow the processor
to use the highest-performance P-state available. That is not
the case currently, so make it actually happen.
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Alexandra Yates <alexandra.yates@linux.intel.com>
[ rjw: Subject and changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
pnfs_layout_process will check the returned layout stateid against what
the kernel has in-core. If it turns out that the stateid we received is
older, then we should resend the LAYOUTGET instead of falling back to
MDS I/O.
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Cc: stable@vger.kernel.org # 3.18+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
If we pass in an empty nfs_fattr struct to nfs_update_inode, it will
(correctly) not update any of the attributes, but it then clears the
NFS_INO_INVALID_ATTR flag, which indicates that the attributes are
up to date. Don't clear the flag if the fattr struct has no valid
attrs to apply.
Reviewed-by: Steve French <steve.french@primarydata.com>
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
If we get no post-op attributes back from a SETATTR operation, then no
attributes will of course be updated during the call to
nfs_update_inode.
We know however that the attributes are invalid at that point, since we
just changed some of them. At the very least, the ctime will be bogus.
If we get no post-op attributes back on the call, mark the attrcache
invalid to reflect that fact.
Reviewed-by: Steve French <steve.french@primarydata.com>
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Commit b3a72384fe ("ARM/PCI: Replace pci_sys_data->align_resource with
global function pointer") introduced an ARM-specific align_resource()
function pointer. This is not portable to other arches and doesn't work
for platforms with two different PCIe host bridge controllers.
Move the function pointer to the pci_host_bridge structure so each host
bridge driver can specify its own align_resource() function.
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Pull more block layer fixes from Jens Axboe:
"I wasn't going to send off a new pull before next week, but the blk
flush fix from Jan from the other day introduced a regression. It's
rare enough not to have hit during testing, since it requires both a
device that rejects the first flush, and bad timing while it does
that. But since someone did hit it, let's get the revert into 4.4-rc3
so we don't have a released rc with that known issue.
Apart from that revert, three other fixes:
- From Christoph, a fix for a missing unmap in NVMe request
preparation.
- An NVMe fix from Nishanth that fixes data corruption on powerpc.
- Also from Christoph, fix a list_del() attempt on blk-mq that didn't
have a matching list_add() at timer start"
* 'for-linus' of git://git.kernel.dk/linux-block:
Revert "blk-flush: Queue through IO scheduler when flush not required"
block: fix blk_abort_request for blk-mq drivers
nvme: add missing unmaps in nvme_queue_rq
NVMe: default to 4k device page size
OMAP CPU hotplug uses cpu1's clocks and power domains for CPU1 wake up
from low power states (or turn on CPU1). This part of code is also
part of system suspend (disable_nonboot_cpus()).
>From other side, cpu1's clocks and power domains are used by CPUIdle. All above
functionality is mutually exclusive and, therefore, lockless clkdm/pwrdm api
can be used in omap4_boot_secondary().
This fixes below back-trace on -RT which is triggered by
pwrdm_lock/unlock():
BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:917
in_atomic(): 1, irqs_disabled(): 0, pid: 118, name: sh
9 locks held by sh/118:
#0: (sb_writers#4){.+.+.+}, at: [<c0144a6c>] vfs_write+0x13c/0x164
#1: (&of->mutex){+.+.+.}, at: [<c01b4c70>] kernfs_fop_write+0x48/0x19c
#2: (s_active#24){.+.+.+}, at: [<c01b4c78>] kernfs_fop_write+0x50/0x19c
#3: (device_hotplug_lock){+.+.+.}, at: [<c03cbff0>] lock_device_hotplug_sysfs+0xc/0x4c
#4: (&dev->mutex){......}, at: [<c03cd284>] device_online+0x14/0x88
#5: (cpu_add_remove_lock){+.+.+.}, at: [<c003af90>] cpu_up+0x50/0x1a0
#6: (cpu_hotplug.lock){++++++}, at: [<c003ae48>] cpu_hotplug_begin+0x0/0xc4
#7: (cpu_hotplug.lock#2){+.+.+.}, at: [<c003aec0>] cpu_hotplug_begin+0x78/0xc4
#8: (boot_lock){+.+...}, at: [<c002b254>] omap4_boot_secondary+0x1c/0x178
Preemption disabled at:[< (null)>] (null)
CPU: 0 PID: 118 Comm: sh Not tainted 4.1.12-rt11-01998-gb4a62c3-dirty #137
Hardware name: Generic DRA74X (Flattened Device Tree)
[<c0017574>] (unwind_backtrace) from [<c0013be8>] (show_stack+0x10/0x14)
[<c0013be8>] (show_stack) from [<c05a8670>] (dump_stack+0x80/0x94)
[<c05a8670>] (dump_stack) from [<c05ad158>] (rt_spin_lock+0x24/0x54)
[<c05ad158>] (rt_spin_lock) from [<c0030dac>] (clkdm_wakeup+0x10/0x2c)
[<c0030dac>] (clkdm_wakeup) from [<c002b2c0>] (omap4_boot_secondary+0x88/0x178)
[<c002b2c0>] (omap4_boot_secondary) from [<c0015d00>] (__cpu_up+0xc4/0x164)
[<c0015d00>] (__cpu_up) from [<c003b09c>] (cpu_up+0x15c/0x1a0)
[<c003b09c>] (cpu_up) from [<c03cd2d4>] (device_online+0x64/0x88)
[<c03cd2d4>] (device_online) from [<c03cd360>] (online_store+0x68/0x74)
[<c03cd360>] (online_store) from [<c01b4ce0>] (kernfs_fop_write+0xb8/0x19c)
[<c01b4ce0>] (kernfs_fop_write) from [<c0144124>] (__vfs_write+0x20/0xd8)
[<c0144124>] (__vfs_write) from [<c01449c0>] (vfs_write+0x90/0x164)
[<c01449c0>] (vfs_write) from [<c01451e4>] (SyS_write+0x44/0x9c)
[<c01451e4>] (SyS_write) from [<c0010240>] (ret_fast_syscall+0x0/0x54)
CPU1: smp_ops.cpu_die() returned, trying to resuscitate
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add missing HWMOD_NO_IDLEST hwmod flag for entries not
having omap4 clkctrl values.
The emac0 hwmod flag fixes the davinci_emac driver probe
since the return of pm_resume() call is now checked.
This solves the following boot errors :
[ 0.121429] omap_hwmod: l4_ls: _wait_target_ready failed: -16
[ 0.121441] omap_hwmod: l4_ls: cannot be enabled for reset (3)
[ 0.124342] omap_hwmod: l4_hs: _wait_target_ready failed: -16
[ 0.124352] omap_hwmod: l4_hs: cannot be enabled for reset (3)
[ 1.967228] omap_hwmod: emac0: _wait_target_ready failed: -16
Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This reverts commit 1b2ff19e6a.
Jan writes:
--
Thanks for report! After some investigation I found out we allocate
elevator specific data in __get_request() only for non-flush requests. And
this is actually required since the flush machinery uses the space in
struct request for something else. Doh. So my patch is just wrong and not
easy to fix since at the time __get_request() is called we are not sure
whether the flush machinery will be used in the end. Jens, please revert
1b2ff19e6a. Thanks!
I'm somewhat surprised that you can reliably hit the race where flushing
gets disabled for the device just while the request is in flight. But I
guess during boot it makes some sense.
--
So let's just revert it, we can fix the queue run manually after the
fact. This race is rare enough that it didn't trigger in testing, it
requires the specific disable-while-in-flight scenario to trigger.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Bug fixes for all architectures. Nothing really stands out"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
KVM: nVMX: remove incorrect vpid check in nested invvpid emulation
arm64: kvm: report original PAR_EL1 upon panic
arm64: kvm: avoid %p in __kvm_hyp_panic
KVM: arm/arm64: vgic: Trust the LR state for HW IRQs
KVM: arm/arm64: arch_timer: Preserve physical dist. active state on LR.active
KVM: arm/arm64: Fix preemptible timer active state crazyness
arm64: KVM: Add workaround for Cortex-A57 erratum 834220
arm64: KVM: Fix AArch32 to AArch64 register mapping
ARM/arm64: KVM: test properly for a PTE's uncachedness
KVM: s390: fix wrong lookup of VCPUs by array index
KVM: s390: avoid memory overwrites on emergency signal injection
KVM: Provide function for VCPU lookup by id
KVM: s390: fix pfmf intercept handler
KVM: s390: enable SIMD only when no VCPUs were created
KVM: x86: request interrupt window when IRQ chip is split
KVM: x86: set KVM_REQ_EVENT on local interrupt request from user space
KVM: x86: split kvm_vcpu_ready_for_interrupt_injection out of dm_request_for_irq_injection
KVM: x86: fix interrupt window handling in split IRQ chip case
MIPS: KVM: Uninit VCPU in vcpu_create error path
MIPS: KVM: Fix CACHE immediate offset sign extension
...
