28 Aug, 2013
2 commits
-
err was overwritten by a previous function call, and checked to be 0. If
the following page allocation fails, 0 is going to be returned instead
of -ENOMEM.Signed-off-by: Thadeu Lima de Souza Cascardo
Signed-off-by: Alexander Graf -
'rmls' is 'unsigned long', lpcr_rmls() will return negative number when
failure occurs, so it need a type cast for comparing.'lpid' is 'unsigned long', kvmppc_alloc_lpid() return negative number
when failure occurs, so it need a type cast for comparing.Signed-off-by: Chen Gang
Acked-by: Paul Mackerras
Signed-off-by: Alexander Graf
23 Aug, 2013
1 commit
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Otherwise we would clear the pvr value
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Alexander Graf
25 Jul, 2013
1 commit
-
Unlike the other general-purpose SPRs, SPRG3 can be read by usermode
code, and is used in recent kernels to store the CPU and NUMA node
numbers so that they can be read by VDSO functions. Thus we need to
load the guest's SPRG3 value into the real SPRG3 register when entering
the guest, and restore the host's value when exiting the guest. We don't
need to save the guest SPRG3 value when exiting the guest as usermode
code can't modify SPRG3.Signed-off-by: Paul Mackerras
Signed-off-by: Alexander Graf
11 Jul, 2013
2 commits
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kvm_guest_enter() was already called by kvmppc_prepare_to_enter().
Don't call it again.Signed-off-by: Scott Wood
Signed-off-by: Alexander Graf -
Currently this is only being done on 64-bit. Rather than just move it
out of the 64-bit ifdef, move it to kvm_lazy_ee_enable() so that it is
consistent with lazy ee state, and so that we don't track more host
code as interrupts-enabled than necessary.Rename kvm_lazy_ee_enable() to kvm_fix_ee_before_entry() to reflect
that this function now has a role on 32-bit as well.Signed-off-by: Scott Wood
Signed-off-by: Alexander Graf
10 Jul, 2013
2 commits
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The table of offsets to real-mode hcall handlers in book3s_hv_rmhandlers.S
can contain negative values, if some of the handlers end up before the
table in the vmlinux binary. Thus we need to use a sign-extending load
to read the values in the table rather than a zero-extending load.
Without this, the host crashes when the guest does one of the hcalls
with negative offsets, due to jumping to a bogus address.Signed-off-by: Paul Mackerras
Signed-off-by: Alexander Graf -
This corrects the usage of the tlbie (TLB invalidate entry) instruction
in HV KVM. The tlbie instruction changed between PPC970 and POWER7.
On the PPC970, the bit to select large vs. small page is in the instruction,
not in the RB register value. This changes the code to use the correct
form on PPC970.On POWER7 we were calculating the AVAL (Abbreviated Virtual Address, Lower)
field of the RB value incorrectly for 64k pages. This fixes it.Since we now have several cases to handle for the tlbie instruction, this
factors out the code to do a sequence of tlbies into a new function,
do_tlbies(), and calls that from the various places where the code was
doing tlbie instructions inline. It also makes kvmppc_h_bulk_remove()
use the same global_invalidates() function for determining whether to do
local or global TLB invalidations as is used in other places, for
consistency, and also to make sure that kvm->arch.need_tlb_flush gets
updated properly.Signed-off-by: Paul Mackerras
Signed-off-by: Alexander Graf
08 Jul, 2013
5 commits
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Both RMA and hash page table request will be a multiple of 256K. We can use
a chunk size of 256K to track the free/used 256K chunk in the bitmap. This
should help to reduce the bitmap size.Signed-off-by: Aneesh Kumar K.V
Acked-by: Paul Mackerras
Signed-off-by: Alexander Graf -
Older version of power architecture use Real Mode Offset register and Real Mode Limit
Selector for mapping guest Real Mode Area. The guest RMA should be physically
contigous since we use the range when address translation is not enabled.This patch switch RMA allocation code to use contigous memory allocator. The patch
also remove the the linear allocator which not used any moreAcked-by: Paul Mackerras
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Alexander Graf -
Powerpc architecture uses a hash based page table mechanism for mapping virtual
addresses to physical address. The architecture require this hash page table to
be physically contiguous. With KVM on Powerpc currently we use early reservation
mechanism for allocating guest hash page table. This implies that we need to
reserve a big memory region to ensure we can create large number of guest
simultaneously with KVM on Power. Another disadvantage is that the reserved memory
is not available to rest of the subsystems and and that implies we limit the total
available memory in the host.This patch series switch the guest hash page table allocation to use
contiguous memory allocator.Signed-off-by: Aneesh Kumar K.V
Acked-by: Paul Mackerras
Signed-off-by: Alexander Graf -
We don't emulate breakpoints yet, so just ignore reads and writes
to / from DABR.This fixes booting of more recent Linux guest kernels for me.
Reported-by: Nello Martuscielli
Tested-by: Nello Martuscielli
Signed-off-by: Alexander Graf -
Add prerequisite patch for CMA RMA allocation patches
04 Jul, 2013
23 commits
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Some userspaces do not preserve unusable property. Since usable
segment has to be present according to VMX spec we can use present
property to amend userspace bug by making unusable segment always
nonpresent. vmx_segment_access_rights() already marks nonpresent segment
as unusable.Cc: stable@vger.kernel.org # 3.9+
Reported-by: Stefan Pietsch
Tested-by: Stefan Pietsch
Signed-off-by: Gleb Natapov
Signed-off-by: Paolo Bonzini -
Finally plug KVM/arm64 into the config system, making it possible
to enable KVM support on AArch64 CPUs.Signed-off-by: Marc Zyngier
Signed-off-by: Paolo Bonzini -
Pull KVM fixes from Paolo Bonzini:
"On the x86 side, there are some optimizations and documentation
updates. The big ARM/KVM change for 3.11, support for AArch64, will
come through Catalin Marinas's tree. s390 and PPC have misc cleanups
and bugfixes"* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (87 commits)
KVM: PPC: Ignore PIR writes
KVM: PPC: Book3S PR: Invalidate SLB entries properly
KVM: PPC: Book3S PR: Allow guest to use 1TB segments
KVM: PPC: Book3S PR: Don't keep scanning HPTEG after we find a match
KVM: PPC: Book3S PR: Fix invalidation of SLB entry 0 on guest entry
KVM: PPC: Book3S PR: Fix proto-VSID calculations
KVM: PPC: Guard doorbell exception with CONFIG_PPC_DOORBELL
KVM: Fix RTC interrupt coalescing tracking
kvm: Add a tracepoint write_tsc_offset
KVM: MMU: Inform users of mmio generation wraparound
KVM: MMU: document fast invalidate all mmio sptes
KVM: MMU: document fast invalidate all pages
KVM: MMU: document fast page fault
KVM: MMU: document mmio page fault
KVM: MMU: document write_flooding_count
KVM: MMU: document clear_spte_count
KVM: MMU: drop kvm_mmu_zap_mmio_sptes
KVM: MMU: init kvm generation close to mmio wrap-around value
KVM: MMU: add tracepoint for check_mmio_spte
KVM: MMU: fast invalidate all mmio sptes
... -
…nux/kernel/git/konrad/xen
Pull Xen bugfixes from Konrad Rzeszutek Wilk:
- Fix memory leak when CPU hotplugging.
- Compile bugs with various #ifdefs
- Fix state changes in Xen PCI front not dealing well with new
toolstack.
- Cleanups in code (use pr_*, fix 80 characters splits, etc)
- Long standing bug in double-reporting the steal time* tag 'stable/for-linus-3.11-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/time: remove blocked time accounting from xen "clockchip"
xen: Convert printks to pr_<level>
xen: ifdef CONFIG_HIBERNATE_CALLBACKS xen_*_suspend
xen/pcifront: Deal with toolstack missing 'XenbusStateClosing' state.
xen/time: Free onlined per-cpu data structure if we want to online it again.
xen/time: Check that the per_cpu data structure has data before freeing.
xen/time: Don't leak interrupt name when offlining.
xen/time: Encapsulate the struct clock_event_device in another structure.
xen/spinlock: Don't leak interrupt name when offlining.
xen/smp: Don't leak interrupt name when offlining.
xen/smp: Set the per-cpu IRQ number to a valid default.
xen/smp: Introduce a common structure to contain the IRQ name and interrupt line.
xen/smp: Coalesce the free_irq calls in one function.
xen-pciback: fix error return code in pcistub_irq_handler_switch() -
Pull AMD EDAC update from Borislav Petkov:
"Add MCE signatures for family 0x15, models 30-3f"* tag 'edac_for_3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
EDAC, MCE, AMD: Add an MCE signature for new Fam15h models
EDAC: Replace strict_strtoul() with kstrtoul() -
Pull regulator updates from Mark Brown:
"Very quiet release here, as well as the usual driver specific updates
only a couple of new things:- New drivers for TI ABB LDOs and MAX77693 PMICs
- Support for enabling bypass mode support via device tree"* tag 'regulator-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (23 commits)
regulator: max77693: Remove NULL test for rmatch[i].init_data
regulator: max77693: Fix trivial typo
regulator: ab8500-ext: Staticize local symbols
regulator: max77693: Add max77693 regualtor driver.
regulator: max8973: fix a typo in documentation
regulator: max8973: initial DT support
regulators: max8973: fix multiple instance support
regulator: of: Added a property to indicate bypass mode support
regulator: ti-abb: Convert to use devm_ioremap_resource
regulator: tps62360: Fix crash in i2c_driver .probe
regulator: ab8500: Provide supply names for the AUX regulators
regulator: ab8500-ext: Enable for Device Tree
regulator: ab8500-ext: Register as a device in its own right
regulator: ab8500-ext: Provide a set_voltage call-back operation
regulator: ab8500: Ensure AB8500 external registers are probed first
regulator: core: add regulator_get_linear_step()
regulator: lp397x: use devm_kzalloc() to make cleanup paths simpler
regulator: lp872x: support the device tree feature
regulator: Remove unnecessary include of linux/delay.h from regulator drivers
regulator: isl6271a: Use NULL instead of 0
... -
Pull clock framework updates from Mike Turquette:
"The common clock framework changes for 3.11 include new clock drivers
across several different platforms and architectures, fixes to
existing drivers, a MAINTAINERS file fix and improvements to the basic
clock types that allow them to be of use to more platforms than before.Only a few fixes to the core framework are included with most all of
the changes landing in the various clock drivers themselves."* tag 'clk-for-linus-3.11' of git://git.linaro.org/people/mturquette/linux: (55 commits)
clk: tegra: fix ifdef for tegra_periph_reset_assert inline
clk: tegra: provide tegra_periph_reset_assert alternative
clk: exynos4: Fix clock aliases for cpufreq related clocks
clk: samsung: Add MUX_FA macro to pass flag and alias
clk: add support for Rockchip gate clocks
clk: vexpress: Make the clock drivers directly available for arm64
clk: vexpress: Use full node name to identify individual clocks
clk: tegra: T114: add DFLL DVCO reset control
clk: tegra: T114: add DFLL source clocks
clk: tegra: T114: add FCPU clock shaper programming, needed by the DFLL
clk: gate: add CLK_GATE_HIWORD_MASK
clk: divider: add CLK_DIVIDER_HIWORD_MASK flag
clk: mux: add CLK_MUX_HIWORD_MASK
clk: Always notify whole subtree when reparenting
MAINTAINERS: make drivers/clk entry match subdirs
clk: honor CLK_GET_RATE_NOCACHE in clk_set_rate
clk: use clk_get_rate() for debugfs
clk: tegra: Use override bits when needed
clk: tegra: override bits for Tegra30 PLLM
clk: tegra: override bits for Tegra114 PLLM
... -
Pull spi updates from Mark Brown:
"A fairly quiet release for the SPI subsystem, the standout changes
being:- Core support for implementing bits per word constraints implemented
by Stephen Warren, factoring some code out of drivers.- Addition of polling mode support for the s3c64xx driver as some
newer Exynos systems have taken the unusual step of removing
interrupt support.- Use of the in-IP FIFO and generic dmaengine support for the OMAP2
driver, providing improved performance.- Conversion of the mpc512x driver to use the core message queue
infrastructure.The nicest thing being that all the factoring out into common code
leads to a negative diffstat overall."* tag 'spi-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (42 commits)
spi/s3c64xx: Rely on the compiler eliminating the OF ID table
spi: s3c64xx: Added support for exynos5440 spi
spi: s3c64xx: Added provision for dedicated cs pin
spi: omap2-mcspi: add generic DMA request support to the DT binding
spi: omap2-mcspi: convert to dma_request_slave_channel_compat()
spi/s3c64xx: Make wait_for_timeout() function name less generic
spi: s3c64xx: added support for polling mode
spi: omap2-mcspi: Add FIFO buffer support
spi: omap2-mcspi: Move bytes per word calculation to the function
spi: spi-xilinx: cleanup a check in xilinx_spi_txrx_bufs()
spi: spi-nuc900: Remove redundant platform_set_drvdata()
spi: spi-fsl-lib: Make mpc8xxx_spi_work static
spi: spi-topcliff-pch: Fix sparse warnings
spi: spi-xilinx: Remove redundant platform_set_drvdata()
spi: spi-xilinx: Add run run-time endian detection
spi: mpc512x: use the SPI subsystem's message queue
spi: mpc512x: improve throughput in the RX/TX func
spi: mpc512x: minor prep before feature change
spi: atmel: convert to dma_request_slave_channel_compat()
spi: sirf: avoid uninitialized-use warning
... -
…/linusw/linux-pinctrl
Pull pin control changes from Linus Walleij:
- A large slew of improvements of the Genric pin configuration support,
and deployment in four different platforms: Rockchip, Super-H PFC,
ABx500 and TZ1090. Support BIAS_BUS_HOLD, get device tree parsing
and debugfs support into shape.- We also have device tree support with generic naming conventions for
the generic pin configuration.- Delete the unused and confusing direct pinconf API. Now state
transitions is *the* way to control pins and multiplexing.- New drivers for Rockchip, TZ1090, and TZ1090 PDC.
- Two pin control states related to power management are now handled in
the device core: "sleep" and "idle", removing a lot of boilerplate
code in drivers. We do not yet know if this is the final word for
pin PM, but it already make things a lot easier to handle.- Handle sparse GPIO ranges passing a list of disparate pins, and
utilize these in the new BayTrail (x86 Atom SoC) driver.- Make the sunxi (AllWinner) driver handle external interrupts.
- Make it possible for pinctrl-single to handle the case where several
pins are managed by a single register, and augment it to handle sleep
modes.- Cleanups and improvements for the abx500 drivers.
- Move Sirf pin control drivers to their own directory, support
save/restore of context and add support for the SiRFatlas6 SoC.- PMU muxing for the Dove pinctrl driver.
- Finalization and support for VF610 in the i.MX6 pinctrl driver.
- Smoothen out various Exynos rough edges.
- Generic cleanups of various kinds.
* tag 'pinctrl-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (82 commits)
pinctrl: vt8500: wmt: remove redundant dev_err call in wmt_pinctrl_probe()
pinctrl: remove bindings for pinconf options needing more thought
pinctrl: remove slew-rate parameter from tz1090
pinctrl: set unit for debounce time pinconfig to usec
pinctrl: more clarifications for generic pull configs
pinctrl: rip out the direct pinconf API
pinctrl-tz1090-pdc: add TZ1090 PDC pinctrl driver
pinctrl-tz1090: add TZ1090 pinctrl driver
pinctrl: samsung: Staticize drvdata_list
pinctrl: rockchip: Add missing irq_gc_unlock() call before return error
pinctrl: abx500: rework error path
pinctrl: abx500: suppress hardcoded value
pinctrl: abx500: factorize code
pinctrl: abx500: fix abx500_gpio_get()
pinctrl: abx500: fix abx500_pin_config_set()
pinctrl: abx500: Add device tree support
sh-pfc: Guard DT parsing with #ifdef CONFIG_OF
pinctrl: add Intel BayTrail GPIO/pinctrl support
pinctrl: fix pinconf_ops::pin_config_dbg_parse_modify kerneldoc
pinctrl: Staticize local symbols
...Conflicts:
drivers/net/ethernet/ti/davinci_mdio.c
drivers/pinctrl/Makefile -
Pull regmap updates from Mark Brown:
"A small but useful set of regmap updates this time around:- An abstraction for bitfields within a register map contributed by
Srinivas Kandagatla, allowing drivers to cope more easily when
hardware designers randomly move things about (mainly when talking
to things like system controllers).- Changes from Lars-Peter Clausen to allow the MMIO regmap to be used
from hard IRQ context.- Small improvements to the cache infrastructure and performance,
including a default cache sync operation so now all regmaps can
sync easily.There's also a pinctrl driver making use of the new bitfield API,
merged here for dependency reasons. There will be a simple add/add
conflict with the pinctrl tree as a result."* tag 'regmap-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
pinctrl: st: Remove unnecessary use of of_match_ptr macro
pinctrl: st: fix return value check
pinctrl: st: Add pinctrl and pinconf support.
regmap: debugfs: Suppress cache for partial register files
regmap: Add regmap_field APIs
regmap: core: Cache all registers by default when cache is enabled
regmap: Implemented default cache sync operation
regmap: Make regmap-mmio usable from atomic contexts
regmap: regcache: Fixup locking for custom lock callbacks
regmap: debugfs: Fix return from regmap_debugfs_get_dump_start
regmap: debugfs: Don't mark lockdep as broken due to debugfs write
regmap: rbtree: Use range information to allocate nodes
regmap: rbtree: Factor out node allocation
regmap: Make regmap_check_range_table() a public API
regmap: Add support for discarding parts of the register cache -
Pull GPIO updates from Linus Walleij:
"Here is a batch of GPIO changes for v3.11. I have agreed with Grant
to take care of the pull requests for this development cycle.No special things are happening in the GPIO tree this time (nice with
some calm) and I have been extra careful to do regression builds and
it's well boiled in -next.GPIO changes for the v3.11 development cycle:
- Incremental development for the Langwell (Atom SoC), Xilinx, ICH
and RCAR drivers.
- Cleanups from Jingoo Han, Axel Lin, Wei Jongjun, Wolfram Sang,
Tushar Behera, Sachin Kamat and Yijing Wang"* tag 'gpio-for-v3.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (35 commits)
Gpio/trivial: replace numeric with standard PM state macros
gpiolib: remove warnning of allocations with IRQs disabled
gpio: grgpio: Staticize local symbols
gpio-langwell: remove Withney point support
gpio: ich: add GPO_BLINK support
gpio-sta2x11: Convert to use devm_ioremap_resource
gpio_msm: Convert to use devm_ioremap_resource
gpio-rcar: Use OUTDT when reading GPIOs configured as output
gpio-sta2x11: Fix potential NULL pointer dereference
gpio/omap: omap_gpio_init_context stub must be inline
gpio: msm-v1: Remove errant __devinit to fix compile
gpio: devres: make comments proper
GPIO: xilinx: Enable driver for Xilinx zynq
DT: Add documentation for gpio-xilinx
GPIO: xilinx: Use BIT macro
GPIO: xilinx: Use __raw_readl/__raw_writel IO functions
GPIO: xilinx: Add support for dual channel
GPIO: xilinx: Simplify driver probe function
gpio: sx150x: convert to use devm_* functions
MAINTAINERS: add linux-gpio mailing list
... -
Pull thermal power-limit update from Tony Luck:
"Thermal limit warnings are too scary and cause unnecessary concern"* tag 'please-pull-mce-therm' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
x86 thermal: Disable power limit notification interrupt by default
x86 thermal: Delete power-limit-notification console messages -
Pull ia64 IOH hotplug fixes from Tony Luck:
"Series to fix IOH hotplug in ia64"* tag 'please-pull-root_bus_hotplug' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
PCI: Replace printks with appropriate pr_*()
PCI/IA64: introduce probe_pci_root_info() to manage _CRS resource
PCI/IA64: Add host bridge resource release for _CRS path
PCI/IA64: fix memleak for create pci root bus fail
PCI/IA64: Allocate pci_root_info instead of using stack
PCI/IA64: embed pci hostbridge resources into pci_root_info
PCI/IA64: SN: use normal resource instead of pci_window
PCI/IA64: SN: remove sn_pci_window_fixup() -
Pull pstore update from Tony Luck:
"Fixes for pstore for 3.11 merge window"* tag 'please-pull-pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
efivars: If pstore_register fails, free unneeded pstore buffer
acpi: Eliminate console msg if pstore.backend excludes ERST
pstore: Return unique error if backend registration excluded by kernel param
pstore: Fail to unlink if a driver has not defined pstore_erase
pstore/ram: remove the power of buffer size limitation
pstore/ram: avoid atomic accesses for ioremapped regions
efi, pstore: Cocci spatch "memdup.spatch" -
Pull misc ia64 updates from Tony Luck:
"Miscellaneous ia64 changes for 3.11 merge window"* tag 'please-pull-misc-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
[IA64] Delete __cpuinit usage from all ia64 users
[IA64] hpsim: Fix check for overlong simscsi prefix.
[IA64] pci: Remove unused fallback_dev
[IA64] perfmon: Use %*phD specifier to dump small buffers
[IA64] Fix trap #45 handling -
Pull "exotic" arch fixes from Geert Uytterhoeven:
"This is a collection of several exotic architecture fixes, and a few
other fixes for issues that were detected while doing the former"* 'exotic-arch-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (35 commits)
lib: Move fonts from drivers/video/console/ to lib/fonts/
console/font: Refactor font support code selection logic
Revert "staging/solo6x10: depend on CONFIG_FONTS"
input: cros_ec_keyb_clear_keyboard() depends on CONFIG_PM_SLEEP
score: Wire up asm-generic/xor.h
score: Remove unneeded
openrisc: Wire up asm-generic/xor.h
h8300/boot: Use POSIX "$((..))" instead of bashism "$[...]"
h8300: Mark H83002 and H83048 CPU support broken
h8300: Switch h8300 to drivers/Kconfig
h8300: Limit timer channel ranges in Kconfig
h8300: Wire up asm-generic/xor.h
h8300: Fill the system call table using a CALL() macro
h8300: Fix
h8300: Hardcode symbol prefixes in asm sources
h8300: add missing definition for read_barries_depends()
frv: head.S - Remove commented-out initialization code
cris: Wire up asm-generic/vga.h
parport: disable PC-style parallel port support on cris
console: Disable VGA text console support on cris
... -
Pull m68k updates from Geert Uytterhoeven.
* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/q40: Enable PC parallel port in defconfig
m68k/q40: Undefine insl/outsl before redefining them
m68k/uaccess: Fix asm constraints for userspace access
swim: Release memory region after incorrect return/goto
m68k/irq: Vector ints need a valid interrupt handler
m68k/math-emu: unsigned issue, 'unsigned long' will never be less than zero
m68k: remove CONFIG_EARLY_PRINTK dependency on CONFIG_EMBEDDED, default to n
m68k/sun3: remove inline marking of EXPORT_SYMBOL functions
[SCSI] a3000: use module_platform_driver_probe()
[SCSI] a4000t: use module_platform_driver_probe()
m68k: Remove inline strcpy() and strcat() implementations -
Pull first batch of ARC changes from Vineet Gupta:
"There's a second bunch to follow next week - which depends on commits
on other trees (irq/net). I'd have preferred the accompanying ARC
change via respective trees, but it didn't workout somehow.Highlights of changes:
- Continuation of ARC MM changes from 3.10 including
zero page optimization
Setting pagecache pages dirty by default
Non executable stack by default
Reducing dcache flushes for aliasing VIPT config- Long overdue rework of pt_regs machinery - removing the unused word
gutters and adding ECR register to baseline (helps cleanup lot of
low level code)- Support for ARC gcc 4.8
- Few other preventive fixes, cosmetics, usage of Kconfig helper..
The diffstat is larger than normal primarily because of arcregs.h
header split as well as beautification of macros in entry.h"* tag 'arc-v3.11-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (32 commits)
ARC: warn on improper stack unwind FDE entries
arc: delete __cpuinit usage from all arc files
ARC: [tlb-miss] Fix bug with CONFIG_ARC_DBG_TLB_MISS_COUNT
ARC: [tlb-miss] Extraneous PTE bit testing/setting
ARC: Adjustments for gcc 4.8
ARC: Setup Vector Table Base in early boot
ARC: Remove explicit passing around of ECR
ARC: pt_regs update #5: Use real ECR for pt_regs->event vs. synth values
ARC: stop using pt_regs->orig_r8
ARC: pt_regs update #4: r25 saved/restored unconditionally
ARC: K/U SP saved from one location in stack switching macro
ARC: Entry Handler tweaks: Simplify branch for in-kernel preemption
ARC: Entry Handler tweaks: Avoid hardcoded LIMMS for ECR values
ARC: Increase readability of entry handlers
ARC: pt_regs update #3: Remove unused gutter at start of callee_regs
ARC: pt_regs update #2: Remove unused gutter at start of pt_regs
ARC: pt_regs update #1: Align pt_regs end with end of kernel stack page
ARC: pt_regs update #0: remove kernel stack canary
ARC: [mm] Remove @write argument to do_page_fault()
ARC: [mm] Make stack/heap Non-executable by default
... -
Pull s390 updates from Martin Schwidefsky:
"This is the bulk of the s390 patches for the 3.11 merge window.Notable enhancements are: the block timeout patches for dasd from
Hannes, and more work on the PCI support front. In addition some
cleanup and the usual bug fixing."* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits)
s390/dasd: Fail all requests when DASD_FLAG_ABORTIO is set
s390/dasd: Add 'timeout' attribute
block: check for timeout function in blk_rq_timed_out()
block/dasd: detailed I/O errors
s390/dasd: Reduce amount of messages for specific errors
s390/dasd: Implement block timeout handling
s390/dasd: process all requests in the device tasklet
s390/dasd: make number of retries configurable
s390/dasd: Clarify comment
s390/hwsampler: Updated misleading member names in hws_data_entry
s390/appldata_net_sum: do not use static data
s390/appldata_mem: do not use static data
s390/vmwatchdog: do not use static data
s390/airq: simplify adapter interrupt code
s390/pci: remove per device debug attribute
s390/dma: remove gratuitous brackets
s390/facility: decompose test_facility()
s390/sclp: remove duplicated include from sclp_ctl.c
s390/irq: store interrupt information in pt_regs
s390/drivers: Cocci spatch "ptr_ret.spatch"
... -
Pull ARM64 updates from Catalin Marinas:
"Main features:
- KVM and Xen ports to AArch64
- Hugetlbfs and transparent huge pages support for arm64
- Applied Micro X-Gene Kconfig entry and dts file
- Cache flushing improvementsFor arm64 huge pages support, there are x86 changes moving part of
arch/x86/mm/hugetlbpage.c into mm/hugetlb.c to be re-used by arm64"* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (66 commits)
arm64: Add initial DTS for APM X-Gene Storm SOC and APM Mustang board
arm64: Add defines for APM ARMv8 implementation
arm64: Enable APM X-Gene SOC family in the defconfig
arm64: Add Kconfig option for APM X-Gene SOC family
arm64/Makefile: provide vdso_install target
ARM64: mm: THP support.
ARM64: mm: Raise MAX_ORDER for 64KB pages and THP.
ARM64: mm: HugeTLB support.
ARM64: mm: Move PTE_PROT_NONE bit.
ARM64: mm: Make PAGE_NONE pages read only and no-execute.
ARM64: mm: Restore memblock limit when map_mem finished.
mm: thp: Correct the HPAGE_PMD_ORDER check.
x86: mm: Remove general hugetlb code from x86.
mm: hugetlb: Copy general hugetlb code from x86 to mm.
x86: mm: Remove x86 version of huge_pmd_share.
mm: hugetlb: Copy huge_pmd_share from x86 to mm.
arm64: KVM: document kernel object mappings in HYP
arm64: KVM: MAINTAINERS update
arm64: KVM: userspace API documentation
arm64: KVM: enable initialization of a 32bit vcpu
... -
Pull ARM updates from Russell King:
"This contains the usual updates from other people (listed below) and
the usual random muddle of miscellaneous ARM updates which cover some
low priority bug fixes and performance improvements.I've started to put the pull request wording into the merge commits,
which are:- NoMMU stuff:
This includes the following series sent earlier to the list:
- nommu-fixes
- R7 Support
- MPU supportI've left out the ARCH_MULTIPLATFORM/!MMU stuff that Arnd and I
were discussing today until we've reached a conclusion/that's had
some more review.This is rebased (and re-tested) on your devel-stable branch because
otherwise there were going to be conflicts with Uwe's V7M work now
that you've merged that. I've included the fix for limiting MPU to
CPU_V7.- Huge page support
These changes bring both HugeTLB support and Transparent HugePage
(THP) support to ARM. Only long descriptors (LPAE) are supported
in this series.The code has been tested on an Arndale board (Exynos 5250).
- LPAE updates
Please pull these miscellaneous LPAE fixes I've been collecting for
a while now for 3.11. They've been tested and reviewed by quite a
few people, and most of the patches are pretty trivial. -- Will Deacon.- arch_timer cleanups
Please pull these arch_timer cleanups I've been holding onto for a
while. They're the same as my last posting, but have been rebased
to v3.10-rc3.- mpidr linearisation (multiprocessor id register - identifies which
CPU number we are in the system)This patch series that implements MPIDR linearization through a
simple hashing algorithm and updates current cpu_{suspend}/{resume}
code to use the newly created hash structures to retrieve context
pointers. It represents a stepping stone for the implementation of
power management code on forthcoming multi-cluster ARM systems.It has been tested on TC2 (dual cluster A15xA7 system), iMX6q,
OMAP4 and Tegra, with processors hitting low-power states requiring
warm-boot resume through the cpu_resume code path"* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (77 commits)
ARM: 7775/1: mm: Remove do_sect_fault from LPAE code
ARM: 7777/1: Avoid extra calls to the C compiler
ARM: 7774/1: Fix dtb dependency to use order-only prerequisites
ARM: 7770/1: remove residual ARMv2 support from decompressor
ARM: 7769/1: Cortex-A15: fix erratum 798181 implementation
ARM: 7768/1: prevent risks of out-of-bound access in ASID allocator
ARM: 7767/1: let the ASID allocator handle suspended animation
ARM: 7766/1: versatile: don't mark pen as __INIT
ARM: 7765/1: perf: Record the user-mode PC in the call chain.
ARM: 7735/2: Preserve the user r/w register TPIDRURW on context switch and fork
ARM: kernel: implement stack pointer save array through MPIDR hashing
ARM: kernel: build MPIDR hash function data structure
ARM: mpu: Ensure that MPU depends on CPU_V7
ARM: mpu: protect the vectors page with an MPU region
ARM: mpu: Allow enabling of the MPU via kconfig
ARM: 7758/1: introduce config HAS_BANDGAP
ARM: 7757/1: mm: don't flush icache in switch_mm with hardware broadcasting
ARM: 7751/1: zImage: don't overwrite ourself with a page table
ARM: 7749/1: spinlock: retry trylock operation if strex fails on free lock
ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace
... -
Pull second set of VFS changes from Al Viro:
"Assorted f_pos race fixes, making do_splice_direct() safe to call with
i_mutex on parent, O_TMPFILE support, Jeff's locks.c series,
->d_hash/->d_compare calling conventions changes from Linus, misc
stuff all over the place."* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
Document ->tmpfile()
ext4: ->tmpfile() support
vfs: export lseek_execute() to modules
lseek_execute() doesn't need an inode passed to it
block_dev: switch to fixed_size_llseek()
cpqphp_sysfs: switch to fixed_size_llseek()
tile-srom: switch to fixed_size_llseek()
proc_powerpc: switch to fixed_size_llseek()
ubi/cdev: switch to fixed_size_llseek()
pci/proc: switch to fixed_size_llseek()
isapnp: switch to fixed_size_llseek()
lpfc: switch to fixed_size_llseek()
locks: give the blocked_hash its own spinlock
locks: add a new "lm_owner_key" lock operation
locks: turn the blocked_list into a hashtable
locks: convert fl_link to a hlist_node
locks: avoid taking global lock if possible when waking up blocked waiters
locks: protect most of the file_lock handling with i_lock
locks: encapsulate the fl_link list handling
locks: make "added" in __posix_lock_file a bool
...
03 Jul, 2013
4 commits
-
Signed-off-by: Al Viro
-
very similar to ext3 counterpart...
Signed-off-by: Al Viro
-
For those file systems(btrfs/ext4/ocfs2/tmpfs) that support
SEEK_DATA/SEEK_HOLE functions, we end up handling the similar
matter in lseek_execute() to update the current file offset
to the desired offset if it is valid, ceph also does the
simliar things at ceph_llseek().To reduce the duplications, this patch make lseek_execute()
public accessible so that we can call it directly from the
underlying file systems.Thanks Dave Chinner for this suggestion.
[AV: call it vfs_setpos(), don't bring the removed 'inode' argument back]
v2->v1:
- Add kernel-doc comments for lseek_execute()
- Call lseek_execute() in ceph->llseek()Signed-off-by: Jie Liu
Cc: Dave Chinner
Cc: Al Viro
Cc: Andi Kleen
Cc: Andrew Morton
Cc: Christoph Hellwig
Cc: Chris Mason
Cc: Josef Bacik
Cc: Ben Myers
Cc: Ted Tso
Cc: Hugh Dickins
Cc: Mark Fasheh
Cc: Joel Becker
Cc: Sage Weil
Signed-off-by: Al Viro -
Pull cpuset changes from Tejun Heo:
"cpuset has always been rather odd about its configurations - a cgroup
right after creation didn't allow any task executions before
configuration, changing configuration in the parent modifies the
descendants irreversibly and so on. These behaviors are inherently
nasty and almost hostile against sharing the hierarchy with other
controllers making it very difficult to use in unified hierarchy.Li is currently in the process of updating the behaviors for
__DEVEL__sane_behavior which is the bulk of changes in this pull
request. It isn't complete yet and the behaviors will change further
but all changes are gated behind sane_behavior. In the process, the
rather hairy work-item punting which was used to work around the
limitations of cgroup descendant iterator was simplified."* 'for-3.11-cpuset' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: rename @cont to @cgrp
cpuset: fix to migrate mm correctly in a corner case
cpuset: allow to move tasks to empty cpusets
cpuset: allow to keep tasks in empty cpusets
cpuset: introduce effective_{cpumask|nodemask}_cpuset()
cpuset: record old_mems_allowed in struct cpuset
cpuset: remove async hotplug propagation work
cpuset: let hotplug propagation work wait for task attaching
cpuset: re-structure update_cpumask() a bit
cpuset: remove cpuset_test_cpumask()
cpuset: remove unnecessary variable in cpuset_attach()
cpuset: cleanup guarantee_online_{cpus|mems}()
cpuset: remove redundant check in cpuset_cpus_allowed_fallback()
