kernel/linux.git/include/linux, branch v4.2-rc2

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-07-12T16:36:59+00:00

Pull timer fixes from Thomas Gleixner: "This update from the timer departement contains: - A series of patches which address a shortcoming in the tick broadcast code. If the broadcast device is not available or an hrtimer emulated broadcast device, some of the original assumptions lead to boot failures. I rather plugged all of the corner cases instead of only addressing the issue reported, so the change got a little larger. Has been extensivly tested on x86 and arm. - Get rid of the last holdouts using do_posix_clock_monotonic_gettime() - A regression fix for the imx clocksource driver - An update to the new state callbacks mechanism for clockevents. This is required to simplify the conversion, which will take place in 4.3" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick/broadcast: Prevent NULL pointer dereference time: Get rid of do_posix_clock_monotonic_gettime cris: Replace do_posix_clock_monotonic_gettime() tick/broadcast: Unbreak CONFIG_GENERIC_CLOCKEVENTS=n build tick/broadcast: Handle spurious interrupts gracefully tick/broadcast: Check for hrtimer broadcast active early tick/broadcast: Return busy when IPI is pending tick/broadcast: Return busy if periodic mode and hrtimer broadcast tick/broadcast: Move the check for periodic mode inside state handling tick/broadcast: Prevent deep idle if no broadcast device available tick/broadcast: Make idle check independent from mode and config tick/broadcast: Sanity check the shutdown of the local clock_event tick/broadcast: Prevent hrtimer recursion clockevents: Allow set-state callbacks to be optional clocksource/imx: Define clocksource for mx27

Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-07-12T16:15:02+00:00

Pull irq fix from Thomas Gleixner: "A single fix for a cpu hotplug race vs. interrupt descriptors: Prevent irq setup/teardown across the cpu starting/dying parts of cpu hotplug so that the starting/dying cpu has a stable view of the descriptor space. This has been an issue for all architectures in the cpu dying phase, where interrupts are migrated away from the dying cpu. In the starting phase its mostly a x86 issue vs the vector space update" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: hotplug: Prevent alloc/free of irq descriptors during cpu up/down

Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm

2015-07-12T03:44:31+00:00

Pull libnvdimm fixes from Dan Williams: "1) Fixes for a handful of smatch reports (Thanks Dan C.!) and minor bug fixes (patches 1-6) 2) Correctness fixes to the BLK-mode nvdimm driver (patches 7-10). Granted these are slightly large for a -rc update. They have been out for review in one form or another since the end of May and were deferred from the merge window while we settled on the "PMEM API" for the PMEM-mode nvdimm driver (ie memremap_pmem, memcpy_to_pmem, and wmb_pmem). Now that those apis are merged we implement them in the BLK driver to guarantee that mmio aperture moves stay ordered with respect to incoming read/write requests, and that writes are flushed through those mmio-windows and platform-buffers to be persistent on media. These pass the sub-system unit tests with the updates to tools/testing/nvdimm, and have received a successful build-report from the kbuild robot (468 configs). With acks from Rafael for the touches to drivers/acpi/" * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: nfit: add support for NVDIMM "latch" flag nfit: update block I/O path to use PMEM API tools/testing/nvdimm: add mock acpi_nfit_flush_address entries to nfit_test tools/testing/nvdimm: fix return code for unimplemented commands tools/testing/nvdimm: mock ioremap_wt pmem: add maintainer for include/linux/pmem.h nfit: fix smatch "use after null check" report nvdimm: Fix return value of nvdimm_bus_init() if class_create() fails libnvdimm: smatch cleanups in __nd_ioctl sparse: fix misplaced __pmem definition

Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2015-07-11T17:20:36+00:00

Pull ARM SoC fixes from Kevin Hilman: "A fairly random colletion of fixes based on -rc1 for OMAP, sunxi and prima2 as well as a few arm64-specific DT fixes. This series also includes a late to support a new Allwinner (sunxi) SoC, but since it's rather simple and isolated to the platform-specific code, it's included it for this -rc" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: dts: add device tree for ARM SMM-A53x2 on LogicTile Express 20MG arm: dts: vexpress: add missing CCI PMU device node to TC2 arm: dts: vexpress: describe all PMUs in TC2 dts GICv3: Add ITS entry to THUNDER dts arm64: dts: Add poweroff button device node for APM X-Gene platform ARM: dts: am4372.dtsi: disable rfbi ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2 ARM: dts: am4372: Add emif node Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep" ARM: sunxi: Enable simplefb in the defconfig ARM: Remove deprecated symbol from defconfig files ARM: sunxi: Add Machine support for A33 ARM: sunxi: Introduce Allwinner H3 support Documentation: sunxi: Update Allwinner SoC documentation ARM: prima2: move to use REGMAP APIs for rtciobrg ARM: dts: atlas7: add pinctrl and gpio descriptions ARM: OMAP2+: Remove unnessary return statement from the void function, omap2_show_dma_caps memory: omap-gpmc: Fix parsing of devices

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2015-07-09T20:13:11+00:00

Pull Ceph fixes from Sage Weil: "There is a fix for CephFS and RBD when used within containers/namespaces, and a fix for the address learning the client is supposed to do when initially talking to the Ceph cluster. There are also two patches updating MAINTAINERS. One breaks out the common Ceph code shared by fs/ceph and drivers/block/rbd.c into a separate entry with the appropriate maintainers listed. The second adds a second reference to the github tree where the Ceph client development takes place (before it is pushed to korg and then to you). The goal here is to move closer to a situation where Ilya Dryomov or one of the other maintainers can push things to you if I am unavailable. Ilya has done most of the work preparing branches for upstream recently; you should not be surprised to hear from him if I am trapped in some internet-less wasteland or hit by a bus or something. In the meantime, we'll work on getting him added to the kernel web of trust" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: MAINTAINERS: add secondary tree for ceph modules MAINTAINERS: update ceph entries libceph: treat sockaddr_storage with uninitialized family as blank libceph: enable ceph in a non-default network namespace

libceph: enable ceph in a non-default network namespace

2015-07-09T17:30:34+00:00

Grab a reference on a network namespace of the 'rbd map' (in case of rbd) or 'mount' (in case of ceph) process and use that to open sockets instead of always using init_net and bailing if network namespace is anything but init_net. Be careful to not share struct ceph_client instances between different namespaces and don't add any code in the !CONFIG_NET_NS case. This is based on a patch from Hong Zhiguo . Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil

time: Get rid of do_posix_clock_monotonic_gettime

2015-07-09T08:51:46+00:00

All users gone. Remove it before we get another one. Signed-off-by: Thomas Gleixner

Merge tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2015-07-09T00:34:51+00:00

Pull power management and ACPI updates from Rafael Wysocki: "These are fixes on top of the previous PM+ACPI pull requests (including one fix for a 4.1 regression) and two commits adding _CLS-based device enumeration support to the ACPI core and the ATA subsystem that waited for the latest ACPICA changes to be merged. Specifics: - Fix for an ACPI resources management regression introduced during the 4.1 cycle (that unfortunately went into -stable) effectively reverting the bad commit along with the recent fixups on top of it and using an alternative approach to address the underlying issue (Rafael J Wysocki). - Fix for a memory leak and an incorrect return value in an error code path in the ACPI LPSS (Low-Power Subsystem) driver (Rafael J Wysocki). - Fix for a leftover dangling pointer in an error code path in the new wakeup IRQ support code (Rafael J Wysocki). - Fix to prevent infinite loops (due to errors in other places) from happening in the core generic PM domains support code (Geert Uytterhoeven). - Hibernation documentation update/clarification (Uwe Geuder). - Support for _CLS-based device enumeration in the ACPI core and in the ATA subsystem (Suravee Suthikulpanit)" * tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / wakeirq: Avoid setting power.wakeirq too hastily ata: ahci_platform: Add ACPI _CLS matching ACPI / scan: Add support for ACPI _CLS device matching PM / hibernate: clarify resume documentation PM / Domains: Avoid infinite loops in attach/detach code ACPI / LPSS: Fix up acpi_lpss_create_device() ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage

Merge tag 'sirf-iobrg2regmap-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux into fixes

2015-07-08T21:20:12+00:00

Merge "CSR SiRFSoC rtc iobrg move to regmap for 4.2" from Barry Song: move CSR rtc iobrg read/write API to be regmap this moves to general APIs, and all drivers will be changed based on it. * tag 'sirf-iobrg2regmap-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux: ARM: prima2: move to use REGMAP APIs for rtciobrg

hotplug: Prevent alloc/free of irq descriptors during cpu up/down

2015-07-08T09:32:25+00:00

When a cpu goes up some architectures (e.g. x86) have to walk the irq space to set up the vector space for the cpu. While this needs extra protection at the architecture level we can avoid a few race conditions by preventing the concurrent allocation/free of irq descriptors and the associated data. When a cpu goes down it moves the interrupts which are targeted to this cpu away by reassigning the affinities. While this happens interrupts can be allocated and freed, which opens a can of race conditions in the code which reassignes the affinities because interrupt descriptors might be freed underneath. Example: CPU1 CPU2 cpu_up/down irq_desc = irq_to_desc(irq); remove_from_radix_tree(desc); raw_spin_lock(&desc->lock); free(desc); We could protect the irq descriptors with RCU, but that would require a full tree change of all accesses to interrupt descriptors. But fortunately these kind of race conditions are rather limited to a few things like cpu hotplug. The normal setup/teardown is very well serialized. So the simpler and obvious solution is: Prevent allocation and freeing of interrupt descriptors accross cpu hotplug. Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra Cc: xiao jin Cc: Joerg Roedel Cc: Borislav Petkov Cc: Yanmin Zhang Link: http://lkml.kernel.org/r/20150705171102.063519515@linutronix.de