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2016-05-20procfs: expose umask in /proc/<PID>/statusRichard W.M. Jones1-0/+1
It's not possible to read the process umask without also modifying it, which is what umask(2) does. A library cannot read umask safely, especially if the main program might be multithreaded. Add a new status line ("Umask") in /proc/<PID>/status. It contains the file mode creation mask (umask) in octal. It is only shown for tasks which have task->fs. This patch is adapted from one originally written by Pierre Carrier. The use case is that we have endless trouble with people setting weird umask() values (usually on the grounds of "security"), and then everything breaking. I'm on the hook to fix these. We'd like to add debugging to our program so we can dump out the umask in debug reports. Previous versions of the patch used a syscall so you could only read your own umask. That's all I need. However there was quite a lot of push-back from those, so this new version exports it in /proc. See: https://lkml.org/lkml/2016/4/13/704 [umask2] https://lkml.org/lkml/2016/4/13/487 [getumask] Signed-off-by: Richard W.M. Jones <rjones@redhat.com> Acked-by: Konstantin Khlebnikov <koct9i@gmail.com> Acked-by: Jerome Marchand <jmarchan@redhat.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Michal Hocko <mhocko@kernel.org> Cc: Pierre Carrier <pierre@spotify.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20zram: introduce per-device debug_stat sysfs nodeSergey Senozhatsky2-0/+10
debug_stat sysfs is read-only and represents various debugging data that zram developers may need. This file is not meant to be used by anyone else: its content is not documented and will change any time w/o any notice. Therefore, the output of debug_stat file contains a version string. To avoid any confusion, we will increase the version number every time we modify the output. At the moment this file exports only one value -- the number of re-compressions, IOW, the number of times compression fast path has failed. This stat is temporary any will be useful in case if any per-cpu compression streams regressions will be reported. Link: http://lkml.kernel.org/r/20160513230834.GB26763@bbox Link: http://lkml.kernel.org/r/20160511134553.12655-1-sergey.senozhatsky@gmail.com Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20zram: remove max_comp_streams internalsSergey Senozhatsky1-19/+8
Remove the internal part of max_comp_streams interface, since we switched to per-cpu streams. We will keep RW max_comp_streams attr around, because: a) we may (silently) switch back to idle compression streams list and don't want to disturb user space b) max_comp_streams attr must wait for the next 'lay off cycle'; we give user space 2 years to adjust before we remove/downgrade the attr, and there are already several attrs scheduled for removal in 4.11, so it's too late for max_comp_streams. This slightly change a user visible behaviour: - First, reading from max_comp_stream file now will always return the number of online CPUs. - Second, writing to max_comp_stream will not take any effect. Link: http://lkml.kernel.org/r/20160503165546.25201-1-sergey.senozhatsky@gmail.com Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20z3fold: the 3-fold allocator for compressed pagesVitaly Wool1-0/+26
This patch introduces z3fold, a special purpose allocator for storing compressed pages. It is designed to store up to three compressed pages per physical page. It is a ZBUD derivative which allows for higher compression ratio keeping the simplicity and determinism of its predecessor. This patch comes as a follow-up to the discussions at the Embedded Linux Conference in San-Diego related to the talk [1]. The outcome of these discussions was that it would be good to have a compressed page allocator as stable and deterministic as zbud with with higher compression ratio. To keep the determinism and simplicity, z3fold, just like zbud, always stores an integral number of compressed pages per page, but it can store up to 3 pages unlike zbud which can store at most 2. Therefore the compression ratio goes to around 2.6x while zbud's one is around 1.7x. The patch is based on the latest linux.git tree. This version has been updated after testing on various simulators (e.g. ARM Versatile Express, MIPS Malta, x86_64/Haswell) and basing on comments from Dan Streetman [3]. [1] https://openiotelc2016.sched.org/event/6DAC/swapping-and-embedded-compression-relieves-the-pressure-vitaly-wool-softprise-consulting-ou [2] https://lkml.org/lkml/2016/4/21/799 [3] https://lkml.org/lkml/2016/5/4/852 Link: http://lkml.kernel.org/r/20160509151753.ec3f9fda3c9898d31ff52a32@gmail.com Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Cc: Seth Jennings <sjenning@redhat.com> Cc: Dan Streetman <ddstreet@ieee.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20Documentation: vm: fix spelling mistakesEric Engestrom1-6/+6
Signed-off-by: Eric Engestrom <eric@engestrom.ch> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-20Merge tag 'mfd-for-linus-4.7' of ↵Linus Torvalds4-2/+202
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add new driver for MAXIM MAX77620/MAX20024 PMIC - Add new driver for Hisilicon HI665X PMIC New Device Support: - Add support for AXP809 in axp20x-rsb - Add support for Power Supply in axp20x New core features: - devm_mfd_* managed resources Fix-ups: - Remove unused code (da9063-irq, wm8400-core, tps6105x, smsc-ece1099, twl4030-power) - Improve clean-up in error path (intel_quark_i2c_gpio) - Explicitly include headers (syscon.h) - Allow building as modules (max77693) - Use IS_ENABLED() instead of rolling your own (dm355evm_msp, wm8400-core) - DT adaptions (axp20x, hi655x, arizona, max77620) - Remove CLK_IS_ROOT flag (intel-lpss, intel_quark) - Move to gpiochip API (asic3, dm355evm_msp, htc-egpio, htc-i2cpld, sm501, tc6393xb, tps65010, ucb1x00, vexpress) - Make use of devm_mfd_* calls (act8945a, as3711, atmel-hlcdc, bcm590xx, hi6421-pmic-core, lp3943, menf21bmc, mt6397, rdc321x, rk808, rn5t618, rt5033, sky81452, stw481x, tps6507x, tps65217, wm8400) Bug Fixes" - Fix ACPI child matching (mfd-core) - Fix start-up ordering issues (mt6397-core, arizona-core) - Fix forgotten register state on resume (intel-lpss) - Fix Clock related issues (twl6040) - Fix scheduling whilst atomic (omap-usb-tll) - Kconfig changes (vexpress)" * tag 'mfd-for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (73 commits) mfd: hi655x: Add MFD driver for hi655x mfd: ab8500-debugfs: Trivial fix of spelling mistake on "between" mfd: vexpress: Add !ARCH_USES_GETTIMEOFFSET dependency mfd: Add device-tree binding doc for PMIC MAX77620/MAX20024 mfd: max77620: Add core driver for MAX77620/MAX20024 mfd: arizona: Add defines for GPSW values that can be used from DT mfd: omap-usb-tll: Fix scheduling while atomic BUG mfd: wm5110: ARIZONA_CLOCK_CONTROL should be volatile mfd: axp20x: Add a cell for the ac power_supply part of the axp20x PMICs mfd: intel_soc_pmic_core: Terminate panel control GPIO lookup table correctly mfd: wl1273-core: Use devm_mfd_add_devices() for mfd_device registration mfd: tps65910: Use devm_mfd_add_devices and devm_regmap_add_irq_chip mfd: sec: Use devm_mfd_add_devices and devm_regmap_add_irq_chip mfd: rc5t583: Use devm_mfd_add_devices and devm_request_threaded_irq mfd: max77686: Use devm_mfd_add_devices and devm_regmap_add_irq_chip mfd: as3722: Use devm_mfd_add_devices and devm_regmap_add_irq_chip mfd: twl4030-power: Remove driver path in file comment MAINTAINERS: Add entry for X-Powers AXP family PMIC drivers mfd: smsc-ece1099: Remove unnecessarily remove callback mfd: Use IS_ENABLED(CONFIG_FOO) instead of checking FOO || FOO_MODULE ...
2016-05-20Merge tag 'fbdev-4.7' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev updates from Tomi Valkeinen: - imxfb: fix lcd power up - small fixes and cleanups * tag 'fbdev-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: fbdev: Use IS_ENABLED() instead of checking for built-in or module efifb: Don't show the mapping VA video: AMBA CLCD: Remove unncessary include in amba-clcd.c fbdev: ssd1307fb: Fix charge pump setting Documentation: fb: fix spelling mistakes fbdev: fbmem: implement error handling in fbmem_init() fbdev: sh_mipi_dsi: remove driver video: fbdev: imxfb: add some error handling video: fbdev: imxfb: fix semantic of .get_power and .set_power video: fbdev: omap2: Remove deprecated regulator_can_change_voltage() usage
2016-05-20Merge tag 'powerpc-4.7-1' of ↵Linus Torvalds4-3/+11
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Highlights: - Support for Power ISA 3.0 (Power9) Radix Tree MMU from Aneesh Kumar K.V - Live patching support for ppc64le (also merged via livepatching.git) Various cleanups & minor fixes from: - Aaro Koskinen, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Chris Smart, Daniel Axtens, Frederic Barrat, Gavin Shan, Ian Munsie, Lennart Sorensen, Madhavan Srinivasan, Mahesh Salgaonkar, Markus Elfring, Michael Ellerman, Oliver O'Halloran, Paul Gortmaker, Paul Mackerras, Rashmica Gupta, Russell Currey, Suraj Jitindar Singh, Thiago Jung Bauermann, Valentin Rothberg, Vipin K Parashar. General: - Update LMB associativity index during DLPAR add/remove from Nathan Fontenot - Fix branching to OOL handlers in relocatable kernel from Hari Bathini - Add support for userspace Power9 copy/paste from Chris Smart - Always use STRICT_MM_TYPECHECKS from Michael Ellerman - Add mask of possible MMU features from Michael Ellerman PCI: - Enable pass through of NVLink to guests from Alexey Kardashevskiy - Cleanups in preparation for powernv PCI hotplug from Gavin Shan - Don't report error in eeh_pe_reset_and_recover() from Gavin Shan - Restore initial state in eeh_pe_reset_and_recover() from Gavin Shan - Revert "powerpc/eeh: Fix crash in eeh_add_device_early() on Cell" from Guilherme G Piccoli - Remove the dependency on EEH struct in DDW mechanism from Guilherme G Piccoli selftests: - Test cp_abort during context switch from Chris Smart - Add several tests for transactional memory support from Rashmica Gupta perf: - Add support for sampling interrupt register state from Anju T - Add support for unwinding perf-stackdump from Chandan Kumar cxl: - Configure the PSL for two CAPI ports on POWER8NVL from Philippe Bergheaud - Allow initialization on timebase sync failures from Frederic Barrat - Increase timeout for detection of AFU mmio hang from Frederic Barrat - Handle num_of_processes larger than can fit in the SPA from Ian Munsie - Ensure PSL interrupt is configured for contexts with no AFU IRQs from Ian Munsie - Add kernel API to allow a context to operate with relocate disabled from Ian Munsie - Check periodically the coherent platform function's state from Christophe Lombard Freescale: - Updates from Scott: "Contains 86xx fixes, minor device tree fixes, an erratum workaround, and a kconfig dependency fix." * tag 'powerpc-4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (192 commits) powerpc/86xx: Fix PCI interrupt map definition powerpc/86xx: Move pci1 definition to the include file powerpc/fsl: Fix build of the dtb embedded kernel images powerpc/fsl: Fix rcpm compatible string powerpc/fsl: Remove FSL_SOC dependency from FSL_LBC powerpc/fsl-pci: Add a workaround for PCI 5 errata powerpc/fsl: Fix SPI compatible on t208xrdb and t1040rdb powerpc/powernv/npu: Add PE to PHB's list powerpc/powernv: Fix insufficient memory allocation powerpc/iommu: Remove the dependency on EEH struct in DDW mechanism Revert "powerpc/eeh: Fix crash in eeh_add_device_early() on Cell" powerpc/eeh: Drop unnecessary label in eeh_pe_change_owner() powerpc/eeh: Ignore handlers in eeh_pe_reset_and_recover() powerpc/eeh: Restore initial state in eeh_pe_reset_and_recover() powerpc/eeh: Don't report error in eeh_pe_reset_and_recover() Revert "powerpc/powernv: Exclude root bus in pnv_pci_reset_secondary_bus()" powerpc/powernv/npu: Enable NVLink pass through powerpc/powernv/npu: Rework TCE Kill handling powerpc/powernv/npu: Add set/unset window helpers powerpc/powernv/ioda2: Export debug helper pe_level_printk() ...
2016-05-20Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds3-15/+9
Pull ARM updates from Russell King: "Changes included in this pull request: - revert pxa2xx-flash back to using ioremap_cached() and switch memremap() to use arch_memremap_wb() - remove pci=firmware command line argument handling - remove unnecessary arm_dma_set_mask() implementation, the generic implementation will do for ARM - removal of the ARM kallsyms "hack" to work around mode switching veneers and vectors located below PAGE_OFFSET - tidy up build system output a little - add L2 cache power management DT bindings - remove duplicated local_irq_disable() in reboot paths - handle AMBA primecell devices better at registration time with PM domains (needed for Samsung SoCs) - ARM specific preparation to support Keystone II kexec" * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8567/1: cache-uniphier: activate ways for secondary CPUs ARM: 8570/2: Documentation: devicetree: Add PL310 PM bindings ARM: 8569/1: pl2x0: Add OF control of cache power management ARM: 8568/1: reboot: remove duplicated local_irq_disable() ARM: 8566/1: drivers: amba: properly handle devices with power domains ARM: provide arm_has_idmap_alias() helper ARM: kexec: remove 512MB restriction on kexec crashdump ARM: provide improved virt_to_idmap() functionality ARM: kexec: fix crashkernel= handling ARM: 8557/1: specify install, zinstall, and uinstall as PHONY targets ARM: 8562/1: suppress "include/generated/mach-types.h is up to date." ARM: 8553/1: kallsyms: remove --page-offset command line option ARM: 8552/1: kallsyms: remove special lower address limit for CONFIG_ARM ARM: 8555/1: kallsyms: ignore ARM mode switching veneers ARM: 8548/1: dma-mapping: remove arm_dma_set_mask() ARM: 8554/1: kernel: pci: remove pci=firmware command line parameter handling ARM: memremap: implement arch_memremap_wb() memremap: add arch specific hook for MEMREMAP_WB mappings mtd: pxa2xx-flash: switch back from memremap to ioremap_cached ARM: reintroduce ioremap_cached() for creating cached I/O mappings
2016-05-19Merge branch 'akpm' (patches from Andrew)Linus Torvalds5-21/+46
Merge updates from Andrew Morton: - fsnotify fix - poll() timeout fix - a few scripts/ tweaks - debugobjects updates - the (small) ocfs2 queue - Minor fixes to kernel/padata.c - Maybe half of the MM queue * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (117 commits) mm, page_alloc: restore the original nodemask if the fast path allocation failed mm, page_alloc: uninline the bad page part of check_new_page() mm, page_alloc: don't duplicate code in free_pcp_prepare mm, page_alloc: defer debugging checks of pages allocated from the PCP mm, page_alloc: defer debugging checks of freed pages until a PCP drain cpuset: use static key better and convert to new API mm, page_alloc: inline pageblock lookup in page free fast paths mm, page_alloc: remove unnecessary variable from free_pcppages_bulk mm, page_alloc: pull out side effects from free_pages_check mm, page_alloc: un-inline the bad part of free_pages_check mm, page_alloc: check multiple page fields with a single branch mm, page_alloc: remove field from alloc_context mm, page_alloc: avoid looking up the first zone in a zonelist twice mm, page_alloc: shortcut watermark checks for order-0 pages mm, page_alloc: reduce cost of fair zone allocation policy retry mm, page_alloc: shorten the page allocator fast path mm, page_alloc: check once if a zone has isolated pageblocks mm, page_alloc: move __GFP_HARDWALL modifications out of the fastpath mm, page_alloc: simplify last cpupid reset mm, page_alloc: remove unnecessary initialisation from __alloc_pages_nodemask() ...
2016-05-19memory_hotplug: introduce memhp_default_state= command line parameterVitaly Kuznetsov1-0/+8
CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE specifies the default value for the memory hotplug onlining policy. Add a command line parameter to make it possible to override the default. It may come handy for debug and testing purposes. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Dan Williams <dan.j.williams@intel.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: David Vrabel <david.vrabel@citrix.com> Cc: David Rientjes <rientjes@google.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Lennart Poettering <lennart@poettering.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-19memory_hotplug: introduce CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINEVitaly Kuznetsov1-4/+5
This patchset continues the work I started with commit 31bc3858ea3e ("memory-hotplug: add automatic onlining policy for the newly added memory"). Initially I was going to stop there and bring the policy setting logic to userspace. I met two issues on this way: 1) It is possible to have memory hotplugged at boot (e.g. with QEMU). These blocks stay offlined if we turn the onlining policy on by userspace. 2) My attempt to bring this policy setting to systemd failed, systemd maintainers suggest to change the default in kernel or ... to use tmpfiles.d to alter the policy (which looks like a hack to me): https://github.com/systemd/systemd/pull/2938 Here I suggest to add a config option to set the default value for the policy and a kernel command line parameter to make the override. This patch (of 2): Introduce config option to set the default value for memory hotplug onlining policy (/sys/devices/system/memory/auto_online_blocks). The reason one would want to turn this option on are to have early onlining for hotpluggable memory available at boot and to not require any userspace actions to make memory hotplug work. [akpm@linux-foundation.org: tweak Kconfig text] Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Dan Williams <dan.j.williams@intel.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: David Vrabel <david.vrabel@citrix.com> Cc: David Rientjes <rientjes@google.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Lennart Poettering <lennart@poettering.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-19mm: /proc/sys/vm/stat_refresh to force vmstat updateHugh Dickins1-0/+14
Provide /proc/sys/vm/stat_refresh to force an immediate update of per-cpu into global vmstats: useful to avoid a sleep(2) or whatever before checking counts when testing. Originally added to work around a bug which left counts stranded indefinitely on a cpu going idle (an inaccuracy magnified when small below-batch numbers represent "huge" amounts of memory), but I believe that bug is now fixed: nonetheless, this is still a useful knob. Its schedule_on_each_cpu() is probably too expensive just to fold into reading /proc/meminfo itself: give this mode 0600 to prevent abuse. Allow a write or a read to do the same: nothing to read, but "grep -h Shmem /proc/sys/vm/stat_refresh /proc/meminfo" is convenient. Oh, and since global_page_state() itself is careful to disguise any underflow as 0, hack in an "Invalid argument" and pr_warn() if a counter is negative after the refresh - this helped to fix a misaccounting of NR_ISOLATED_FILE in my migration code. But on recent kernels, I find that NR_ALLOC_BATCH and NR_PAGES_SCANNED often go negative some of the time. I have not yet worked out why, but have no evidence that it's actually harmful. Punt for the moment by just ignoring the anomaly on those. Signed-off-by: Hugh Dickins <hughd@google.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andres Lagar-Cavilla <andreslc@google.com> Cc: Yang Shi <yang.shi@linaro.org> Cc: Ning Qu <quning@gmail.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Andres Lagar-Cavilla <andreslc@google.com> Cc: Konstantin Khlebnikov <koct9i@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-19mm: rename _count, field of the struct page, to _refcountJoonsoo Kim1-5/+5
Many developers already know that field for reference count of the struct page is _count and atomic type. They would try to handle it directly and this could break the purpose of page reference count tracepoint. To prevent direct _count modification, this patch rename it to _refcount and add warning message on the code. After that, developer who need to handle reference count will find that field should not be accessed directly. [akpm@linux-foundation.org: fix comments, per Vlastimil] [akpm@linux-foundation.org: Documentation/vm/transhuge.txt too] [sfr@canb.auug.org.au: sync ethernet driver changes] Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Sunil Goutham <sgoutham@cavium.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Manish Chopra <manish.chopra@qlogic.com> Cc: Yuval Mintz <yuval.mintz@qlogic.com> Cc: Tariq Toukan <tariqt@mellanox.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-19Documentation: update debugobjects docDu, Changbin1-12/+14
Update documentation creangponding to change(debugobjects: make fixup functions return bool instead of int). Signed-off-by: Du, Changbin <changbin.du@intel.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Josh Triplett <josh@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tejun Heo <tj@kernel.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-05-19Merge tag 'docs-for-linus' of git://git.lwn.net/linuxLinus Torvalds52-601/+469
Pull Documentation updates from Jon Corbet: "A bit busier this time around. The most interesting thing (IMO) this time around is some beginning infrastructural work to allow documents to be written using restructured text. Maybe someday, in a galaxy far far away, we'll be able to eliminate the DocBook dependency and have a much better integrated set of kernel docs. Someday. Beyond that, there's a new document on security hardening from Kees, the movement of some sample code over to samples/, a number of improvements to the serial docs from Geert, and the usual collection of corrections, typo fixes, etc" * tag 'docs-for-linus' of git://git.lwn.net/linux: (55 commits) doc: self-protection: provide initial details serial: doc: Use port->state instead of info serial: doc: Always refer to tty_port->mutex Documentation: vm: Spelling s/paltform/platform/g Documentation/memcg: update kmem limit doc as codes behavior docproc: print a comment about autogeneration for rst output docproc: add support for reStructuredText format via --rst option docproc: abstract terminating lines at first space docproc: abstract docproc directive detection docproc: reduce unnecessary indentation docproc: add variables for subcommand and filename kernel-doc: use rst C domain directives and references for types kernel-doc: produce RestructuredText output kernel-doc: rewrite usage description, remove duplicated comments Doc: correct the location of sysrq.c Documentation: fix common spelling mistakes samples: v4l: from Documentation to samples directory samples: connector: from Documentation to samples directory Documentation: xillybus: fix spelling mistake Documentation: x86: fix spelling mistakes ...
2016-05-19Merge branch 'i2c/for-4.7' of ↵Linus Torvalds3-0/+379
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: - Peter Rosin did some major rework on the locking of i2c muxes by seperating parent-locked muxes and mux-locked muxes. This avoids deadlocks/workarounds when the mux itself needs i2c commands for muxing. And as a side-effect, other workarounds in the media layer could be eliminated. Also, Peter stepped up as the i2c mux maintainer and will keep an eye on these changes. - major updates to the octeon driver - add a helper to the core to generate the address+rw_bit octal and make drivers use it - quite a bunch of driver updates * 'i2c/for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (84 commits) i2c: rcar: add DMA support i2c: st: Implement bus clear i2c: only check scl functions when using generic recovery i2c: algo-bit: declare i2c_bit_quirk_no_clk_stretch as static i2c: tegra: disable clock before returning error [media] rtl2832: regmap is aware of lockdep, drop local locking hack [media] rtl2832_sdr: get rid of empty regmap wrappers [media] rtl2832: change the i2c gate to be mux-locked [media] si2168: change the i2c gate to be mux-locked iio: imu: inv_mpu6050: change the i2c gate to be mux-locked i2c: mux: document i2c muxes and elaborate on parent-/mux-locked muxes i2c: mux: relax locking of the top i2c adapter during mux-locked muxing i2c: muxes always lock the parent adapter i2c: allow adapter drivers to override the adapter locking i2c: uniphier: add "\n" at the end of error log i2c: mv64xxx: remove CONFIG_HAVE_CLK conditionals i2c: mv64xxx: use clk_{prepare_enable,disable_unprepare} i2c: mv64xxx: handle probe deferral for the clock i2c: mv64xxx: enable the driver on ARCH_MVEBU i2c: octeon: Add workaround for broken irqs on CN3860 ...
2016-05-19Merge tag 'md/4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/mdLinus Torvalds1-0/+6
Pull MD updates from Shaohua Li: "Several patches from Guoqing fixing md-cluster bugs and several patches from Heinz fixing dm-raid bugs" * tag 'md/4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md: md-cluster: check the return value of process_recvd_msg md-cluster: gather resync infos and enable recv_thread after bitmap is ready md: set MD_CHANGE_PENDING in a atomic region md: raid5: add prerequisite to run underneath dm-raid md: raid10: add prerequisite to run underneath dm-raid md: md.c: fix oops in mddev_suspend for raid0 md-cluster: fix ifnullfree.cocci warnings md-cluster/bitmap: unplug bitmap to sync dirty pages to disk md-cluster/bitmap: fix wrong page num in bitmap_file_clear_bit and bitmap_file_set_bit md-cluster/bitmap: fix wrong calcuation of offset md-cluster: sync bitmap when node received RESYNCING msg md-cluster: always setup in-memory bitmap md-cluster: wakeup thread if activated a spare disk md-cluster: change array_sectors and update size are not supported md-cluster: fix locking when node joins cluster during message broadcast md-cluster: unregister thread if err happened md-cluster: wake up thread to continue recovery md-cluser: make resync_finish only called after pers->sync_request md-cluster: change resync lock from asynchronous to synchronous
2016-05-19Merge tag 'iommu-updates-v4.7' of ↵Linus Torvalds3-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull IOMMU updates from Joerg Roedel: "The updates include: - rate limiting for the VT-d fault handler - remove statistics code from the AMD IOMMU driver. It is unused and should be replaced by something more generic if needed - per-domain pagesize-bitmaps in IOMMU core code to support systems with different types of IOMMUs - support for ACPI devices in the AMD IOMMU driver - 4GB mode support for Mediatek IOMMU driver - ARM-SMMU updates from Will Deacon: - support for 64k pages with SMMUv1 implementations (e.g MMU-401) - remove open-coded 64-bit MMIO accessors - initial support for 16-bit VMIDs, as supported by some ThunderX SMMU implementations - a couple of errata workarounds for silicon in the field - various fixes here and there" * tag 'iommu-updates-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (44 commits) iommu/arm-smmu: Use per-domain page sizes. iommu/amd: Remove statistics code iommu/dma: Finish optimising higher-order allocations iommu: Allow selecting page sizes per domain iommu: of: enforce const-ness of struct iommu_ops iommu: remove unused priv field from struct iommu_ops iommu/dma: Implement scatterlist segment merging iommu/arm-smmu: Clear cache lock bit of ACR iommu/arm-smmu: Support SMMUv1 64KB supplement iommu/arm-smmu: Decouple context format from kernel config iommu/arm-smmu: Tidy up 64-bit/atomic I/O accesses io-64-nonatomic: Add relaxed accessor variants iommu/arm-smmu: Work around MMU-500 prefetch errata iommu/arm-smmu: Convert ThunderX workaround to new method iommu/arm-smmu: Differentiate specific implementations iommu/arm-smmu: Workaround for ThunderX erratum #27704 iommu/arm-smmu: Add support for 16 bit VMID iommu/amd: Move get_device_id() and friends to beginning of file iommu/amd: Don't use IS_ERR_VALUE to check integer values iommu/amd: Signedness bug in acpihid_device_group() ...
2016-05-19Merge tag 'sound-4.7-rc1' of ↵Linus Torvalds8-25/+84
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "This time was again a relatively calm development cycle; most of updates are about drivers, and no radical changes are seen in any core code. Here are some highlights: ALSA core: - Continued hardening of ALSA hrtimer - A few leak fixes in timer interface - Fix poll error handling in PCM and compress - Add error propagation in compress API - Removal of dead rtctimer driver HD-audio: - Native ELD notify support for i915 HDMI - Realtek ALC234 & co support - Code refactoring to standardize chmap support - Continued development for SKL HDMI core support Firewire: - Apply delayed card registration to all drivers - Improved / stabilized the handling of PCM stream start / stop - Add tracepoints to dump a part of isochronous packet data - Fixed incoming/outgoing packet parameter usages - Add support for M-Audio profire series USB-audio: - Fixes for UAC2 clock source - SS+ support - Workaround for oft-seen repeated sample rate read errors ASoC: - Further slow progress on the topology code - Substantial updates and improvements for the da7219, es8328, fsl-ssi, Intel and rcar drivers. - Compress error handling in WM ADSP driver" * tag 'sound-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (177 commits) ALSA: firewire-lib: change a member of event structure to suppress sparse wanings to bool type sound: oss: Use setup_timer and mod_timer. ASoC: hdac_hdmi: Remove the unused 'timeout' variable ASoC: fsl_ssi: Fix channel slipping on capture (or playback) restart in full duplex. ASoC: fsl_ssi: Fix channel slipping in Playback at startup ASoC: fsl_ssi: Fix samples being dropped at Playback startup ASoC: fsl_ssi: Save a dev reference for dev_err() purpose. ASoC: fsl_ssi: The IPG/5 limitation concerns the bitclk, not the sysclk. ASoC: fsl_ssi: Real hardware channels max number is 32 ASoC: pcm5102a: Add support for PCM5102A codec ASoC: hdac_hdmi: add link management ASoC: Intel: Skylake: add link management ALSA: hdac: add link pm and ref counting ALSA: au88x0: Fix zero clear of stream->resources ASoC: rt298: Add DMI match for Broxton-P reference platform ASoC: rt298: fix null deref on acpi driver data ASoC: dapm: deprecate MICBIAS widget type ALSA: firewire-lib: drop skip argument from helper functions to queue a packet ALSA: firewire-lib: add context information to tracepoints ALSA: firewire-lib: permit to flush queued packets only in process context for better PCM period granularity ...
2016-05-19Merge tag 'pci-v4.7-changes' of ↵Linus Torvalds3-2/+55
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Enumeration: - Refine PCI support check in pcibios_init() (Adrian-Ken Rueegsegger) - Provide common functions for ECAM mapping (Jayachandran C) - Allow all PCIe services on non-ACPI host bridges (Jon Derrick) - Remove return values from pcie_port_platform_notify() and relatives (Jon Derrick) - Widen portdrv service type from 4 bits to 8 bits (Keith Busch) - Add Downstream Port Containment portdrv service type (Keith Busch) - Add Downstream Port Containment driver (Keith Busch) Resource management: - Identify Enhanced Allocation (EA) BAR Equivalent resources in sysfs (Alex Williamson) - Supply CPU physical address (not bus address) to iomem_is_exclusive() (Bjorn Helgaas) - alpha: Call iomem_is_exclusive() for IORESOURCE_MEM, but not IORESOURCE_IO (Bjorn Helgaas) - Mark Broadwell-EP Home Agent 1 as having non-compliant BARs (Prarit Bhargava) - Disable all BAR sizing for devices with non-compliant BARs (Prarit Bhargava) - Move PCI I/O space management from OF to PCI core code (Tomasz Nowicki) PCI device hotplug: - acpiphp_ibm: Avoid uninitialized variable reference (Dan Carpenter) - Use cached copy of PCI_EXP_SLTCAP_HPC bit (Lukas Wunner) Virtualization: - Mark Intel i40e NIC INTx masking as broken (Alex Williamson) - Reverse standard ACS vs device-specific ACS enabling (Alex Williamson) - Work around Intel Sunrise Point PCH incorrect ACS capability (Alex Williamson) IOMMU: - Add pci_add_dma_alias() to abstract implementation (Bjorn Helgaas) - Move informational printk to pci_add_dma_alias() (Bjorn Helgaas) - Add support for multiple DMA aliases (Jacek Lawrynowicz) - Add DMA alias quirk for mic_x200_dma (Jacek Lawrynowicz) Thunderbolt: - Fix double free of drom buffer (Andreas Noever) - Add Intel Thunderbolt device IDs (Lukas Wunner) - Fix typos and magic number (Lukas Wunner) - Support 1st gen Light Ridge controller (Lukas Wunner) Generic host bridge driver: - Use generic ECAM API (Jayachandran C) Cavium ThunderX host bridge driver: - Don't clobber read-only bits in bridge config registers (David Daney) - Use generic ECAM API (Jayachandran C) Freescale i.MX6 host bridge driver: - Use enum instead of bool for variant indicator (Andrey Smirnov) - Implement reset sequence for i.MX6+ (Andrey Smirnov) - Factor out ref clock enable (Bjorn Helgaas) - Add initial imx6sx support (Christoph Fritz) - Add reset-gpio-active-high boolean property to DT (Petr Štetiar) - Add DT property for link gen, default to Gen1 (Tim Harvey) - dts: Specify imx6qp version of PCIe core (Andrey Smirnov) - dts: Fix PCIe reset GPIO polarity on Toradex Apalis Ixora (Petr Štetiar) Marvell Armada host bridge driver: - add DT binding for Marvell Armada 7K/8K PCIe controller (Thomas Petazzoni) - Add driver for Marvell Armada 7K/8K PCIe controller (Thomas Petazzoni) Marvell MVEBU host bridge driver: - Constify mvebu_pcie_pm_ops structure (Jisheng Zhang) - Use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS for mvebu_pcie_pm_ops (Jisheng Zhang) Microsoft Hyper-V host bridge driver: - Report resources release after stopping the bus (Vitaly Kuznetsov) - Add explicit barriers to config space access (Vitaly Kuznetsov) Renesas R-Car host bridge driver: - Select PCI_MSI_IRQ_DOMAIN (Arnd Bergmann) Synopsys DesignWare host bridge driver: - Remove incorrect RC memory base/limit configuration (Gabriele Paoloni) - Move Root Complex setup code to dw_pcie_setup_rc() (Jisheng Zhang) TI Keystone host bridge driver: - Add error IRQ handler (Murali Karicheri) - Remove unnecessary goto statement (Murali Karicheri) Miscellaneous: - Fix spelling errors (Colin Ian King)" * tag 'pci-v4.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (48 commits) PCI: Disable all BAR sizing for devices with non-compliant BARs x86/PCI: Mark Broadwell-EP Home Agent 1 as having non-compliant BARs PCI: Identify Enhanced Allocation (EA) BAR Equivalent resources in sysfs PCI, of: Move PCI I/O space management to PCI core code PCI: generic, thunder: Use generic ECAM API PCI: Provide common functions for ECAM mapping PCI: hv: Add explicit barriers to config space access PCI: Use cached copy of PCI_EXP_SLTCAP_HPC bit PCI: Add Downstream Port Containment driver PCI: Add Downstream Port Containment portdrv service type PCI: Widen portdrv service type from 4 bits to 8 bits PCI: designware: Remove incorrect RC memory base/limit configuration PCI: hv: Report resources release after stopping the bus ARM: dts: imx6qp: Specify imx6qp version of PCIe core PCI: imx6: Implement reset sequence for i.MX6+ PCI: imx6: Use enum instead of bool for variant indicator PCI: thunder: Don't clobber read-only bits in bridge config registers thunderbolt: Fix double free of drom buffer PCI: rcar: Select PCI_MSI_IRQ_DOMAIN PCI: armada: Add driver for Marvell Armada 7K/8K PCIe controller ...
2016-05-19Merge tag 'pinctrl-v4.7-1' of ↵Linus Torvalds2-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "This kernel cycle was quite calm when it comes to pin control and there is really just one major change, and that is the introduction of devm_pinctrl_register() managed resources. Apart from that linear development, details below. Core changes: - Add the devm_pinctrl_register() API and switch all applicable drivers to use it, saving lots of lines of code all over the place. New drivers: - driver for the Broadcom NS2 SoC - subdriver for the PXA25x SoCs - subdriver for the AMLogic Meson GXBB SoC Driver improvements: - the Intel Baytrail driver now properly supports pin control - Nomadik, Rockchip, Broadcom BCM2835 support the .get_direction() callback in the GPIO portions - continued development and stabilization of several SH-PFC SoC subdrivers: r8a7795, r8a7790, r8a7794 etc" * tag 'pinctrl-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (85 commits) Revert "pinctrl: tegra: avoid parked_reg and parked_bank" pinctrl: meson: Fix eth_tx_en bit index pinctrl: tegra: avoid parked_reg and parked_bank pinctrl: tegra: Correctly check the supported configuration pinctrl: amlogic: Add support for Amlogic Meson GXBB SoC pinctrl: rockchip: fix pull setting error for rk3399 pinctrl: stm32: Implement .pin_config_dbg_show() pinctrl: nomadik: hide nmk_gpio_get_mode when unused pinctrl: ns2: rename pinctrl_utils_dt_free_map pinctrl: at91: Merge clk_prepare and clk_enable into clk_prepare_enable pinctrl: at91: Make at91_gpio_template const pinctrl: baytrail: fix some error handling in debugfs pinctrl: ns2: add pinmux driver support for Broadcom NS2 SoC pinctrl: sirf/atlas7: trivial fix of spelling mistake on flagged pinctrl: sh-pfc: Kill unused variable in sh_pfc_remove() pinctrl: nomadik: implement .get_direction() pinctrl: nomadik: use BIT() with offsets consequently pinctrl: exynos5440: Use off-stack memory for pinctrl_gpio_range pinctrl: zynq: Use devm_pinctrl_register() for pinctrl registration pinctrl: u300: Use devm_pinctrl_register() for pinctrl registration ...
2016-05-19Merge tag 'dmaengine-4.7-rc1' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds7-6/+138
Pull dmaengine updates from Vinod Koul: "This time round the update brings in following changes: - new tegra driver for ADMA device - support for Xilinx AXI Direct Memory Access Engine and Xilinx AXI Central Direct Memory Access Engine and few updates to this driver - new cyclic capability to sun6i and few updates - slave-sg support in bcm2835 - updates to many drivers like designware, hsu, mv_xor, pxa, edma, qcom_hidma & bam" * tag 'dmaengine-4.7-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (84 commits) dmaengine: ioatdma: disable relaxed ordering for ioatdma dmaengine: of_dma: approximate an average distribution dmaengine: core: Use IS_ENABLED() instead of checking for built-in or module dmaengine: edma: Re-evaluate errors when ccerr is triggered w/o error event dmaengine: qcom_hidma: add support for object hierarchy dmaengine: qcom_hidma: add debugfs hooks dmaengine: qcom_hidma: implement lower level hardware interface dmaengine: vdma: Add clock support Documentation: DT: vdma: Add clock support for dmas dmaengine: vdma: Add config structure to differentiate dmas MAINTAINERS: Update Tegra DMA maintainers dmaengine: tegra-adma: Add support for Tegra210 ADMA Documentation: DT: Add binding documentation for NVIDIA ADMA dmaengine: vdma: Add Support for Xilinx AXI Central Direct Memory Access Engine Documentation: DT: vdma: update binding doc for AXI CDMA dmaengine: vdma: Add Support for Xilinx AXI Direct Memory Access Engine Documentation: DT: vdma: update binding doc for AXI DMA dmaengine: vdma: Rename xilinx_vdma_ prefix to xilinx_dma dmaengine: slave means at least one of DMA_SLAVE, DMA_CYCLIC dmaengine: mv_xor: Allow selecting mv_xor for mvebu only compatible SoC ...
2016-05-19Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-3/+29
Pull KVM updates from Paolo Bonzini: "Small release overall. x86: - miscellaneous fixes - AVIC support (local APIC virtualization, AMD version) s390: - polling for interrupts after a VCPU goes to halted state is now enabled for s390 - use hardware provided information about facility bits that do not need any hypervisor activity, and other fixes for cpu models and facilities - improve perf output - floating interrupt controller improvements. MIPS: - miscellaneous fixes PPC: - bugfixes only ARM: - 16K page size support - generic firmware probing layer for timer and GIC Christoffer Dall (KVM-ARM maintainer) says: "There are a few changes in this pull request touching things outside KVM, but they should all carry the necessary acks and it made the merge process much easier to do it this way." though actually the irqchip maintainers' acks didn't make it into the patches. Marc Zyngier, who is both irqchip and KVM-ARM maintainer, later acked at http://mid.gmane.org/573351D1.4060303@arm.com ('more formally and for documentation purposes')" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (82 commits) KVM: MTRR: remove MSR 0x2f8 KVM: x86: make hwapic_isr_update and hwapic_irr_update look the same svm: Manage vcpu load/unload when enable AVIC svm: Do not intercept CR8 when enable AVIC svm: Do not expose x2APIC when enable AVIC KVM: x86: Introducing kvm_x86_ops.apicv_post_state_restore svm: Add VMEXIT handlers for AVIC svm: Add interrupt injection via AVIC KVM: x86: Detect and Initialize AVIC support svm: Introduce new AVIC VMCB registers KVM: split kvm_vcpu_wake_up from kvm_vcpu_kick KVM: x86: Introducing kvm_x86_ops VCPU blocking/unblocking hooks KVM: x86: Introducing kvm_x86_ops VM init/destroy hooks KVM: x86: Rename kvm_apic_get_reg to kvm_lapic_get_reg KVM: x86: Misc LAPIC changes to expose helper functions KVM: shrink halt polling even more for invalid wakeups KVM: s390: set halt polling to 80 microseconds KVM: halt_polling: provide a way to qualify wakeups during poll KVM: PPC: Book3S HV: Re-enable XICS fast path for irqfd-generated interrupts kvm: Conditionally register IRQ bypass consumer ...
2016-05-19Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds8-1/+194
Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for 4.7. Here's the summary of the changes: - ATH79: Support for DTB passuing using the UHI boot protocol - ATH79: Remove support for builtin DTB. - ATH79: Add zboot debug serial support. - ATH79: Add initial support for Dragino MS14 (Dragine 2), Onion Omega and DPT-Module. - ATH79: Update devicetree clock support for AR9132 and AR9331. - ATH79: Cleanup the DT code. - ATH79: Support newer SOCs in ath79_ddr_ctrl_init. - ATH79: Fix regression in PCI window initialization. - BCM47xx: Move SPROM driver to drivers/firmware/ - BCM63xx: Enable partition parser in defconfig. - BMIPS: BMIPS5000 has I cache filing from D cache - BMIPS: BMIPS: Add cpu-feature-overrides.h - BMIPS: Add Whirlwind support - BMIPS: Adjust mips-hpt-frequency for BCM7435 - BMIPS: Remove maxcpus from BCM97435SVMB DTS - BMIPS: Add missing 7038 L1 register cells to BCM7435 - BMIPS: Various tweaks to initialization code. - BMIPS: Enable partition parser in defconfig. - BMIPS: Cache tweaks. - BMIPS: Add UART, I2C and SATA devices to DT. - BMIPS: Add BCM6358 and BCM63268support - BMIPS: Add device tree example for BCM6358. - BMIPS: Improve Improve BCM6328 and BCM6368 device trees - Lantiq: Add support for device tree file from boot loader - Lantiq: Allow build with no built-in DT. - Loongson 3: Reserve 32MB for RS780E integrated GPU. - Loongson 3: Fix build error after ld-version.sh modification - Loongson 3: Move chipset ACPI code from drivers to arch. - Loongson 3: Speedup irq processing. - Loongson 3: Add basic Loongson 3A support. - Loongson 3: Set cache flush handlers to nop. - Loongson 3: Invalidate special TLBs when needed. - Loongson 3: Fast TLB refill handler. - MT7620: Fallback strategy for invalid syscfg0. - Netlogic: Fix CP0_EBASE redefinition warnings - Octeon: Initialization fixes - Octeon: Add DTS files for the D-Link DSR-1000N and EdgeRouter Lite - Octeon: Enable add Octeon-drivers in cavium_octeon_defconfig - Octeon: Correctly handle endian-swapped initramfs images. - Octeon: Support CN73xx, CN75xx and CN78xx. - Octeon: Remove dead code from cvmx-sysinfo. - Octeon: Extend number of supported CPUs past 32. - Octeon: Remove some code limiting NR_IRQS to 255. - Octeon: Simplify octeon_irq_ciu_gpio_set_type. - Octeon: Mark some functions __init in smp.c - Octeon: Octeon: Add Octeon III CN7xxx interface detection - PIC32: Add serial driver and bindings for it. - PIC32: Add PIC32 deadman timer driver and bindings. - PIC32: Add PIC32 clock timer driver and bindings. - Pistachio: Determine SoC revision during boot - Sibyte: Fix Kconfig dependencies of SIBYTE_BUS_WATCHER. - Sibyte: Strip redundant comments from bcm1480_regs.h. - Panic immediately if panic_on_oops is set. - module: fix incorrect IS_ERR_VALUE macro usage. - module: Make consistent use of pr_* - Remove no longer needed work_on_cpu() call. - Remove CONFIG_IPV6_PRIVACY from defconfigs. - Fix registers of non-crashing CPUs in dumps. - Handle MIPSisms in new vmcore_elf32_check_arch. - Select CONFIG_HANDLE_DOMAIN_IRQ and make it work. - Allow RIXI to be used on non-R2 or R6 cores. - Reserve nosave data for hibernation - Fix siginfo.h to use strict POSIX types. - Don't unwind user mode with EVA. - Fix watchpoint restoration - Ptrace watchpoints for R6. - Sync icache when it fills from dcache - I6400 I-cache fills from dcache. - Various MSA fixes. - Cleanup MIPS_CPU_* definitions. - Signal: Move generic copy_siginfo to signal.h - Signal: Fix uapi include in exported asm/siginfo.h - Timer fixes for sake of KVM. - XPA TLB refill fixes. - Treat perf counter feature - Update John Crispin's email address - Add PIC32 watchdog and bindings. - Handle R10000 LL/SC bug in set_pte() - cpufreq: Various fixes for Longson1. - R6: Fix R2 emulation. - mathemu: Cosmetic fix to ADDIUPC emulation, plenty of other small fixes - ELF: ABI and FP fixes. - Allow for relocatable kernel and use that to support KASLR. - Fix CPC_BASE_ADDR mask - Plenty fo smp-cps, CM, R6 and M6250 fixes. - Make reset_control_ops const. - Fix kernel command line handling of leading whitespace. - Cleanups to cache handling. - Add brcm, bcm6345-l1-intc device tree bindings. - Use generic clkdev.h header - Remove CLK_IS_ROOT usage. - Misc small cleanups. - CM: Fix compilation error when !MIPS_CM - oprofile: Fix a preemption issue - Detect DSP ASE v3 support:1" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (275 commits) MIPS: pic32mzda: fix getting timer clock rate. MIPS: ath79: fix regression in PCI window initialization MIPS: ath79: make ath79_ddr_ctrl_init() compatible for newer SoCs MIPS: Fix VZ probe gas errors with binutils <2.24 MIPS: perf: Fix I6400 event numbers MIPS: DEC: Export `ioasic_ssr_lock' to modules MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC MIPS: CM: Fix compilation error when !MIPS_CM MIPS: Fix genvdso error on rebuild USB: ohci-jz4740: Remove obsolete driver MIPS: JZ4740: Probe OHCI platform device via DT MIPS: JZ4740: Qi LB60: Remove support for AVT2 variant MIPS: pistachio: Determine SoC revision during boot MIPS: BMIPS: Adjust mips-hpt-frequency for BCM7435 mips: mt7620: fallback to SDRAM when syscfg0 does not have a valid value for the memory type MIPS: Prevent "restoration" of MSA context in non-MSA kernels MIPS: cevt-r4k: Dynamically calculate min_delta_ns MIPS: malta-time: Take seconds into account MIPS: malta-time: Start GIC count before syncing to RTC MIPS: Force CPUs to lose FP context during mode switches ...
2016-05-19Merge tag 'arc-4.7-rc1' of ↵Linus Torvalds7-0/+99
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC updates from Vineet Gupta: "We have a relatively big changeset for ARC for 4.7. The highlight is support for EZChip (now Mellanox) NPS-400 network processor, a 400-Gb throughput C-programmable packet processor based on ARC700 cores from Synopsys. See http://www.mellanox.com/related-docs/prod_npu/PB_NPS-400.pdf Also present are irqchip and clocksource drivers for NPS as agreed with respective maintainers to go via ARC tree due to an soc header dependency. I have the needed ACKs from Jason, Marc, Daniel. You might run into a trivial merge conflict in drivers/irqchip/* This EZChip platform support required some deep changes in ARC architecture code and also opportunity to cleanup past sins (legacy irq domains, missing irq domain lookup, hard coded timer irqs...) Summary: - Support for EZChip (now Mellanox) NPS-400 Network processor based on ARC700 - NPS interrupt controller and clocksource drivers - ARC timers probed off DT - ARC iqrchips switching to linear domain (upgrade from legacy domains)" * tag 'arc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (37 commits) arc: axs103_smp: Fix CPU frequency to 100MHz for dual-core arc: axs10x: Add DT bindings for I2S PLL Clock ARC: pae: STRICT_MM_TYPECHECKS was broken ARC: Add eznps platform to Kconfig and Makefile ARC: [plat-eznps] Use dedicated COMMAND_LINE_SIZE ARC: [plat-eznps] Use dedicated cpu_relax() ARC: [plat-eznps] Use dedicated identity auxiliary register. ARC: [plat-eznps] Use dedicated SMP barriers ARC: [plat-eznps] Use dedicated atomic/bitops/cmpxchg ARC: [plat-eznps] Use dedicated user stack top ARC: [plat-eznps] Add eznps platform ARC: [plat-eznps] Add eznps board defconfig and dts ARC: Mark secondary cpu online only after all HW setup is done ARC: rwlock: disable interrupts in !LLSC variant ARC: Make vmalloc size configurable ARC: clean out UAPI byteorder.h clean off Kconfig symbol irqchip: add nps Internal and external irqchips clocksource: Add NPS400 timers driver soc: Support for EZchip SoC Documentation: Add EZchip vendor to binding list ...
2016-05-19Merge branch 'next' of ↵Linus Torvalds2-0/+69
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull security subsystem updates from James Morris: "Highlights: - A new LSM, "LoadPin", from Kees Cook is added, which allows forcing of modules and firmware to be loaded from a specific device (this is from ChromeOS, where the device as a whole is verified cryptographically via dm-verity). This is disabled by default but can be configured to be enabled by default (don't do this if you don't know what you're doing). - Keys: allow authentication data to be stored in an asymmetric key. Lots of general fixes and updates. - SELinux: add restrictions for loading of kernel modules via finit_module(). Distinguish non-init user namespace capability checks. Apply execstack check on thread stacks" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (48 commits) LSM: LoadPin: provide enablement CONFIG Yama: use atomic allocations when reporting seccomp: Fix comment typo ima: add support for creating files using the mknodat syscall ima: fix ima_inode_post_setattr vfs: forbid write access when reading a file into memory fs: fix over-zealous use of "const" selinux: apply execstack check on thread stacks selinux: distinguish non-init user namespace capability checks LSM: LoadPin for kernel file loading restrictions fs: define a string representation of the kernel_read_file_id enumeration Yama: consolidate error reporting string_helpers: add kstrdup_quotable_file string_helpers: add kstrdup_quotable_cmdline string_helpers: add kstrdup_quotable selinux: check ss_initialized before revalidating an inode label selinux: delay inode label lookup as long as possible selinux: don't revalidate an inode's label when explicitly setting it selinux: Change bool variable name to index. KEYS: Add KEYCTL_DH_COMPUTE command ...
2016-05-19Merge branches 'amba', 'devel-stable', 'kexec-for-next' and 'misc' into ↵Russell King12-46/+247
for-linus
2016-05-18Merge tag 'trace-v4.7' of ↵Linus Torvalds2-10/+1579
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "This includes two new updates for the ftrace infrastructure. - With the changing of the code for filtering events by pid, from a list of pids to a bitmask, we can now easily implement following forks. With a new tracing option "event-fork" which, when set, will have tasks with pids in set_event_pid, when they fork, to have their child pids added to set_event_pid and the child will be traced as well. Note, if "event-fork" is set and a task with its pid in set_event_pid exits, its pid will be removed from set_event_pid - The addition of Tom Zanussi's hist triggers. This includes a very thorough documentatino on how to use the hist triggers with events. This introduces a quick and easy way to get histogram data from events and their fields. Some other cleanups and updates were added as well. Like Masami Hiramatsu added test cases for the event trigger and hist triggers. Also I added a speed up of filtering by using a temp buffer when filters are set" * tag 'trace-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (45 commits) tracing: Use temp buffer when filtering events tracing: Remove TRACE_EVENT_FL_USE_CALL_FILTER logic tracing: Remove unused function trace_current_buffer_lock_reserve() tracing: Remove one use of trace_current_buffer_lock_reserve() tracing: Have trace_buffer_unlock_commit() call the _regs version with NULL tracing: Remove unused function trace_current_buffer_discard_commit() tracing: Move trace_buffer_unlock_commit{_regs}() to local header tracing: Fold filter_check_discard() into its only user tracing: Make filter_check_discard() local tracing: Move event_trigger_unlock_commit{_regs}() to local header tracing: Don't use the address of the buffer array name in copy_from_user tracing: Handle tracing_map_alloc_elts() error path correctly tracing: Add check for NULL event field when creating hist field tracing: checking for NULL instead of IS_ERR() tracing: Do not inherit event-fork option for instances tracing: Fix unsigned comparison to zero in hist trigger code kselftests/ftrace: Add a test for log2 modifier of hist trigger tracing: Add hist trigger 'log2' modifier kselftests/ftrace: Add hist trigger testcases kselftests/ftrace : Add event trigger testcases ...
2016-05-18Merge tag 'rpmsg-v4.7' of git://github.com/andersson/remoteprocLinus Torvalds1-13/+1
Pull rpmsg updates from Bjorn Andersson: "Refactor rpmsg module registration to follow other subsystems; by introduction of module_rpmsg_driver and hiding of THIS_MODULE from clients" * tag 'rpmsg-v4.7' of git://github.com/andersson/remoteproc: rpmsg: use module_rpmsg_driver in existing drivers and examples rpmsg: add helper macro module_rpmsg_driver rpmsg: drop owner assignment from rpmsg_drivers rpmsg: add THIS_MODULE to rpmsg_driver in rpmsg core
2016-05-18Merge branch 'for-linus' of ↵Linus Torvalds2-11/+22
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input updates from Dmitry Torokhov: "First round of updates for the input subsystem. No new drivers here, just some driver fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: rotary-encoder - fix bare use of 'unsigned' Input: cm109 - spin_lock in complete() cleanup Input: cm109 - fix handling of volume and mute buttons Input: byd - don't wipe dynamically allocated memory twice Input: twl4030 - fix unsafe macro definition Input: twl6040-vibra - remove mutex Input: bcm_iproc_tsc - DT spelling s/clock-name/clock-names/ Input: bcm_iproc_tsc - use syscon to access shared registers Input: ti_am335x_tsc - use SIMPLE_DEV_PM_OPS Input: omap-keypad - remove set_col_gpio_val() and get_row_gpio_val() Input: omap-keypad - drop empty PM stubs Input: omap-keypad - remove adjusting of scan delay Input: gpio-keys - clean up device tree binding example Input: kbtab - stop saving struct usb_device Input: gtco - stop saving struct usb_device Input: aiptek - stop saving struct usb_device Input: acecad - stop saving struct usb_device
2016-05-18Merge tag 'media/v4.7-1' of ↵Linus Torvalds35-1135/+81
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - added support for Intersil/Techwell TW686x-based video capture cards - v4l PCI skeleton driver moved to samples directory - Documentation cleanups and improvements - RC: reduced the memory footprint for IR raw events - tpg: Export the tpg code from vivid as a module - adv7180: Add device tree binding documentation - lots of driver improvements and fixes * tag 'media/v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (173 commits) [media] exynos-gsc: avoid build warning without CONFIG_OF [media] samples: v4l: from Documentation to samples directory [media] dib0700: add USB ID for another STK8096-PVR ref design based card [media] tvp5150: propagate I2C write error in .s_register callback [media] tvp5150: return I2C write operation failure to callers [media] em28xx: add support for Hauppauge WinTV-dualHD DVB tuner [media] em28xx: add missing USB IDs [media] update cx23885 and em28xx cardlists [media] media: au0828 fix au0828_v4l2_device_register() to not unlock and free [media] c8sectpfe: Rework firmware loading mechanism [media] c8sectpfe: Demote print to dev_dbg [media] c8sectpfe: Fix broken circular buffer wp management [media] media-device: Simplify compat32 logic [media] media: i2c: ths7303: remove redundant assignment on bt [media] dvb-usb: hide unused functions [media] xilinx-vipp: remove unnecessary of_node_put [media] drivers/media/media-devnode: clear private_data before put_device() [media] drivers/media/media-device: move debug log before _devnode_unregister() [media] drivers/media/rc: postpone kfree(rc_dev) [media] media/dvb-core: forward media_create_pad_links() return value ...
2016-05-18Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds2-13/+15
Pull SCSI updates from James Bottomley: "First round of SCSI updates for the 4.6+ merge window. This batch includes the usual quota of driver updates (bnx2fc, mp3sas, hpsa, ncr5380, lpfc, hisi_sas, snic, aacraid, megaraid_sas). There's also a multiqueue update for scsi_debug, assorted bug fixes and a few other minor updates (refactor of scsi_sg_pools into generic code, alua and VPD updates, and struct timeval conversions)" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (138 commits) mpt3sas: Used "synchronize_irq()"API to synchronize timed-out IO & TMs mpt3sas: Set maximum transfer length per IO to 4MB for VDs mpt3sas: Updating mpt3sas driver version to 13.100.00.00 mpt3sas: Fix initial Reference tag field for 4K PI drives. mpt3sas: Handle active cable exception event mpt3sas: Update MPI header to 2.00.42 Revert "lpfc: Delete unnecessary checks before the function call mempool_destroy" eata_pio: missing break statement hpsa: Fix type ZBC conditional checks scsi_lib: Decode T10 vendor IDs scsi_dh_alua: do not fail for unknown VPD identification scsi_debug: use locally assigned naa scsi_debug: uuid for lu name scsi_debug: vpd and mode page work scsi_debug: add multiple queue support bfa: fix bfa_fcb_itnim_alloc() error handling megaraid_sas: Downgrade two success messages to info cxlflash: Fix to resolve dead-lock during EEH recovery scsi_debug: rework resp_report_luns scsi_debug: use pdt constants ...
2016-05-18Merge branch 'stable/for-linus-4.7' of ↵Linus Torvalds1-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft Pull iscsi_ibft updates from Konrad Rzeszutek Wilk: "The pull has two features - both of them expand the SysFS entries: - 'prefix-len' - which is subnet_mask_prefix of the iBFT header. - 'acpi_header' dir with: 'iBFT', OEM-ID (whatever it extracts from the iBFT header) and OEM_TABLE_ID (also whatever it extracts from the iBFT header). This is to help NIC drivers to figure out during bootup how to deal with BIOS created iBFT tables (like by TianoCore UEFI implemenation)" * 'stable/for-linus-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: ibft: Expose iBFT acpi header via sysfs iscsi_ibft: Add prefix-len attr and display netmask
2016-05-18Merge tag 'armsoc-drivers' of ↵Linus Torvalds10-13/+1382
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "Driver updates for ARM SoCs, these contain various things that touch the drivers/ directory but got merged through arm-soc for practical reasons. For the most part, this is now related to power management controllers, which have not yet been abstracted into a separate subsystem, and typically require some code in drivers/soc or arch/arm to control the power domains. Another large chunk here is a rework of the NVIDIA Tegra USB3.0 support, which was surprisingly tricky and took a long time to get done. Finally, reset controller handling as always gets merged through here as well" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits) arm-ccn: Enable building as module soc/tegra: pmc: Add generic PM domain support usb: xhci: tegra: Add Tegra210 support usb: xhci: Add NVIDIA Tegra XUSB controller driver dt-bindings: usb: xhci-tegra: Add Tegra210 XUSB controller support dt-bindings: usb: Add NVIDIA Tegra XUSB controller binding PCI: tegra: Support per-lane PHYs dt-bindings: pci: tegra: Update for per-lane PHYs phy: tegra: Add Tegra210 support phy: Add Tegra XUSB pad controller support dt-bindings: phy: tegra-xusb-padctl: Add Tegra210 support dt-bindings: phy: Add NVIDIA Tegra XUSB pad controller binding phy: core: Allow children node to be overridden clk: tegra: Add interface to enable hardware control of SATA/XUSB PLLs drivers: firmware: psci: make two helper functions inline soc: renesas: rcar-sysc: Add support for R-Car H3 power areas soc: renesas: rcar-sysc: Add support for R-Car E2 power areas soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas soc: renesas: rcar-sysc: Add support for R-Car H2 power areas ...
2016-05-18Merge tag 'armsoc-dt64' of ↵Linus Torvalds12-17/+310
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM 64-bit DT updates from Arnd Bergmann: "We continue ramping up platform support for 64-bit ARM machines, with 111 individual non-merge changesets touching 21 platforms. The LG1312 platform is completely new and is the first ARM platform by LG that we support in the mainline kernel. Two other SoCs got added that are updated versions of existing SoC families, so the port mainly consists of new dts files: - The Hisilicon Hip06/D03 is the latest server platform from Huawei/Hisilicon, and follows the Hip05/D02 platform. - Rockchip RK3399 follows the 32-bit RK3288 that is popular in low-end Chromebooks and the 64-bit RK3368 that is mainly found in chinese Android TV boxes. The 96Boards HiKey based on the Hisilicon Hi6220 (Kirin 620) gets a long-awaited overhaul with a lot of devices enabled in the DT, so it should be much more usable with a mainline kernel now. See also https://plus.google.com/111524780435806926688/posts/PeGb2VsNhJd A lot of work went into enabling new device drivers on existing machines, but we also have a couple of new commercially available machines: - Google Pixel C laptop based on Tegra210 - Hardkernel Odroid C2 Based on Amlogic Meson GXBB (S905) - Geekbuying GeekBox based on Rockchip RK3368 And finally, a couple of reference or development platforms that are not end-user platforms but are used for trying out the respective SoC platforms: - Amlogic Meson GXBB P200 and P201 development systems - NXP Layerscape 1043A QDS development board - Hisilicon Hip06 D03 server board, as mentioned above - LG1312 Reference Design - RK3399 Evaluation Board" * tag 'armsoc-dt64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (104 commits) arm64: dts: marvell: add XOR node for Armada 3700 SoC dt-bindings: document rockchip rk3399-evb board arm64: dts: rockchip: add dts file for RK3399 evaluation board arm64: dts: rockchip: add core dtsi file for RK3399 SoCs dt-bindings: rockchip-dw-mshc: add description for rk3399 arm64: dts: marvell: Use a SoC-specific compatible for xHCI on Armada37xx arm64: dts: marvell: Rename armada-37xx USB node arm64: dts: marvell: Clean up armada-3720-db Documentation: arm64: Add Hisilicon Hip06 D03 dts binding arm64: dts: Add initial dts for Hisilicon Hip06 D03 board arm64: dts: hip05: Add nor flash support arm64: dts: hip05: fix its node without msi-cells arm64: dts: r8a7795: Don't disable referenced optional clocks arm64: dts: salvator-x: populate EXTALR arm64: dts: r8a7795: enable PCIe on Salvator-X arm64: dts: r8a7795: Add PCIe nodes arm64: tegra: Add IOMMU node to GM20B on Tegra210 arm64: tegra: Add reference clock to GM20B on Tegra210 dt-bindings: Add documentation for GM20B GPU dt-bindings: gk20a: Document iommus property ...
2016-05-18Merge tag 'armsoc-dt' of ↵Linus Torvalds17-29/+225
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM DT updates from Arnd Bergmann: "These are all the updates to device tree files for 32-bit platforms, which as usual makes up the bulk of the ARM SoC changes: 462 non-merge changesets, 450 files changed, 23340 insertions, 5216 deletions. The three platforms that are added with the "soc" branch are here as well, and we add some related machine files: - For Aspeed AST2400/AST2500, we get the evaluation platform and the Tyan Palmetto POWER8 mainboard that uses the AST2400 BMC - For Oxnas 810SE, the Western Digital "My Book World Edition" is added as the only platform at the moment. - For ARM MPS2, the AN385 (Cortex-M3) and AN399 (Cortex-M7) are supported On the ARM Realview development platform, we now support all machines with device tree, previously only the board files were supported, which in turn will likely be removed soon. Qualcomm IPQ4019 is the second generation ARM based "Internet Processor", following the IPQ806x that is used in many high-end WiFi routers. This one integrates two ath10k wifi radios that were previously on separate chips. Other boards that got added for existing chips are: Ti OMAP family: - Amazon Kindle Fire, first generation, tablet and ebook reader - OnRISC Baltos iR 2110 and 3220 embedded industrial PCs - TI AM5728 IDK, TI AM3359 ICE-V2, and TI DRA722 Rev C EVM development systems Samsung EXYNOS platform: - Samsung ARTIK5 evaluation board, see https://www.artik.io/modules/overview/artik-5/ NXP i.MX platforms: - Ka-Ro electronics TX6S-8034, TX6S-8035, TX6U-8033, TX6U-81xx, TX6Q-1036, TX6Q-1110/-1130, TXUL-0010 and TXUL-0011 industrial SoM modules - Embest MarS Board i.MX6Dual DIY platform - Boundary Devices i.MX6 Quad Plus Nitrogen6_MAX and SoloX Nitrogen6sx embedded boards - Technexion Pico i.MX6UL compute module - ZII VF610 Development Board Marvell embedded (mvebu, orion, kirkwood) platforms: - Linksys Viper (E4200v2 / EA4500) WiFi router - Buffalo Kurobox Pro NAS Qualcomm Snapdragon: - Arrow DragonBoard 600c (96boards) with APQ8064 Snapdragon 600 Rockchips platform: - mqmaker MiQi single-board computer Altera SoCFPGA: - samtec VIN|ING 1000 vehicle communication interface Allwinner Sunxi platforms: - Dserve DSRV9703C tablet - Difrnce DIT4350 tablet - Colorfly E708 Q1 tablet - Polaroid MID2809PXE04 tablet - Olimex A20 OLinuXino LIME2 single board computer - Xunlong Orange Pi 2, Orange Pi One, and Orange Pi PC single board computers Across many platforms, bug fixes went in to address warnings that dtc now emits with 'make dtbs W=1'. Further changes for device enablement went into Ti OMAP, bcm283x (Raspberry Pi), bcm47xx (wifi router), Ti Davinci, Samsung EXYNOS, Marvell mvebu/kirkwood/orion, NXP i.MX/Vybrid NXP LPC18xx, NXP LPC32xx, Renesas shmobile/r-mobile/r-car, Rockchips rk3xxx, ST Ux500, ST STi, Atmel AT91/SAMA5, Altera SoCFPGA, Allwinner Sunxi, Sigma Designs Tango, NVIDIA Tegra, Socionext Uniphier and ARM Versatile Express" * tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (458 commits) ARM: dts: tango4: Import watchdog node ARM: dts: tango4: Update cpus node for cpufreq ARM: dts: tango4: Update DT to match clk driver ARM: dts: tango4: Initial thermal support arm/dst: Add Aspeed ast2500 device tree arm/dts: Add Aspeed ast2400 device tree ARM: sun7i: dt: Add pll3 and pll7 clocks ARM: dts: sunxi: Add a olinuxino-lime2-emmc ARM: dts: at91: sama5d4: add trng node ARM: dts: at91: sama5d3: add trng node ARM: dts: at91: sama5d2: add trng node ARM: dts: at91: at91sam9g45 family: reduce the trng register map size ARM: sun4i: dt: Add pll3 and pll7 clocks ARM: sun5i: chip: Enable the TV Encoder ARM: sun5i: r8: Add display blocks to the DTSI ARM: sun5i: a13: Add display and TCON clocks ARM: dts: ux500: configure the accelerometers open drain ARM: mx5: dts: Enable USB OTG on M53EVK ARM: dts: imx6ul-14x14-evk: Add audio support ARM: dts: imx6qdl: Remove unneeded unit-addresses ...
2016-05-18Merge tag 'armsoc-soc' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "We get support for three new 32-bit SoC platforms this time. The amount of changes in arch/arm for any of them is miniscule, as all the interesting code is in device driver subsystems (irqchip, clk, pinctrl, ...) these days. I'm listing them here, as the addition of the Kconfig statement is the main relevant milestone for a new platform. In each case, some drivers are are shared with existing platforms, while other drivers are added for v4.7 as well, or come in a later release. - The Aspeed platform is probably the most interesting one, this is what most whitebox servers use as their baseboard management controller. We get support for the very common ast2400 and ast2500 SoCs. The OpenBMC project focuses on this chip, and the LWN article about their ELC 2016 presentation at https://lwn.net/Articles/683320/ triggered the submission, but the code comes from IBM's OpenPOWER team rather than the team at Facebook. There are still a lot more drivers that need to get added over time, and I hope both teams can work together on that. - OXNAS is an old platform for Network Attached Storage devices from Oxford Semiconductor. There are models with ARM10 (!) and ARM11MPCore cores, but for now, we only support the original ARM9 based versions. The product lineup was subsequently part of PLX, Avago and now the new Broadcom Ltd. https://wiki.openwrt.org/doc/hardware/soc/soc.oxnas has some more information. - V2M-MPS2 is a prototyping platform from ARM for their Cortex-M cores and is related to the existing Realview / Versatile Express lineup, but without MMU. We now support various NOMMU platforms, so adding a new one is fairly straightforward. http://infocenter.arm.com/help/topic/com.arm.doc.100112_0100_03_en/ has detailed information about the platform. Other noteworthy updates: - Work on LPC32xx has resumed, and Vladimir Zapolskiy and Sylvain Lemieux are now maintaining the platform. This is an older ARM9 based platform from NXP (not Freescale), but it remains in use in embedded markets. - Kevin Hilman is now co-maintaining the Amlogic Meson platform for both 32-bit and 64-bit ARM, and started contributing some patches. - As is often the case, work on the OMAP platforms makes up the bulk of the actual SoC code changes in arch/arm, but there isn't a lot of that either" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits) MAINTAINERS: ARM/Amlogic: add co-maintainer, misc. updates MAINTAINERS: add ARM/NXP LPC32XX SoC specific drivers to the section MAINTAINERS: add new maintainers of NXP LPC32xx SoC MAINTAINERS: move ARM/NXP LPC32xx record to ARM section arm: Add Aspeed machine ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers ARM: lpc32xx: remove reboot header file ARM: dove: Remove CLK_IS_ROOT ARM: orion5x: Remove CLK_IS_ROOT ARM: mv78xx0: Remove CLK_IS_ROOT ARM: davinci: da850: use clk->set_parent for async3 ARM: davinci: Move clock init after ioremap. MAINTAINERS: Update ARM Versatile Express platform entry ARM: vexpress/mps2: introduce MPS2 platform MAINTAINERS: add maintainer entry for ARM/OXNAS platform ARM: Add new mach-oxnas irqchip: versatile-fpga: add new compatible for OX810SE SoC ARM: uniphier: correct the call order of of_node_put() MAINTAINERS: fix stale TI DaVinci entries ...
2016-05-18Merge branch 'for-linus' of ↵Linus Torvalds1-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: "The s390 patches for the 4.7 merge window have the usual bug fixes and cleanups, and the following new features: - An interface for dasd driver to query if a volume is online to another operating system - A new ioctl for the dasd driver to verify the format for a range of tracks - Following the example of x86 the struct fpu is now allocated with the task_struct - The 'report_error' interface for the PCI bus to send an adapter-error notification from user space to the service element of the machine" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (29 commits) s390/vmem: remove unused function parameter s390/vmem: fix identity mapping s390: add missing include statements s390: add missing declarations s390: make couple of variables and functions static s390/cache: remove superfluous locking s390/cpuinfo: simplify locking and skip offline cpus early s390/3270: hangup the 3270 tty after a disconnect s390/3270: handle reconnect of a tty with a different size s390/3270: avoid endless I/O loop with disconnected 3270 terminals s390/3270: fix garbled output on 3270 tty view s390/3270: fix view reference counting s390/3270: add missing tty_kref_put s390/dumpstack: implement and use return_address() s390/cpum_sf: Remove superfluous SMP function call s390/cpum_cf: Remove superfluous SMP function call s390/Kconfig: make z196 the default processor type s390/sclp: avoid compile warning in sclp_pci_report s390/fpu: allocate 'struct fpu' with the task_struct s390/crypto: cleanup and move the header with the cpacf definitions ...
2016-05-17Merge branch 'fixes' into miscJames Bottomley4-32/+37
2016-05-17Merge tag 'gpio-v4.7-1' of ↵Linus Torvalds8-4/+184
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of GPIO changes for kernel cycle v4.7: Core infrastructural changes: - Support for natively single-ended GPIO driver stages. This means that if the hardware has registers to configure open drain or open source configuration, we use that rather than (as we did before) try to emulate it by switching the line to an input to get high impedance. This is also documented throughly in Documentation/gpio/driver.txt for those of you who did not understand one word of what I just wrote. - Start to do away with the unnecessarily complex and unitelligible ARCH_REQUIRE_GPIOLIB and ARCH_WANT_OPTIONAL_GPIOLIB, another evolutional artifact from the time when the GPIO subsystem was unmaintained. Archs can now just select GPIOLIB and be done with it, cleanups to arches will trickle in for the next kernel. Some minor archs ACKed the changes immediately so these are included in this pull request. - Advancing the use of the data pointer inside the GPIO device for storing driver data by switching the PowerPC, Super-H Unicore and a few other subarches or subsystem drivers in ALSA SoC, Input, serial, SSB, staging etc to use it. - The initialization now reads the input/output state of the GPIO lines, so that each GPIO descriptor knows - if this callback is implemented - whether the line is input or output. This also reflects nicely in userspace "lsgpio". - It is now possible to name GPIO producer names, line names, from the device tree. (Platform data has been supported for a while). I bet we will get a similar mechanism for ACPI one of those days. This makes is possible to get sensible producer names for e.g. GPIO rails in "lsgpio" in userspace. New drivers: - New driver for the Loongson1. - The XLP driver now supports Broadcom Vulcan ARM64. - The IT87 driver now supports IT8620 and IT8628. - The PCA953X driver now supports Galileo Gen2. Driver improvements: - MCP23S08 was switched to use the gpiolib irqchip helpers and now also suppors level-triggered interrupts. - 74x164 and RCAR now supports the .set_multiple() callback - AMDPT was converted to use generic GPIO. - TC3589x, TPS65218, SX150X, F7188X, MENZ127, VX855, WM831X, WM8994 support the new single ended callback for open drain and in some cases open source. - Implement the .get_direction() callback for a few more drivers like PL061, Xgene. Cleanups: - Paul Gortmaker combed through the drivers and de-modularized those who are not really modules. - Move the GPIO poweroff DT bindings to the power subdir where they belong. - Rename gpio-generic.c to gpio-mmio.c, which is much more to the point. That's what it is handling, nothing more, nothing less" * tag 'gpio-v4.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (126 commits) MIPS: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB gpio: zevio: make it explicitly non-modular gpio: timberdale: make it explicitly non-modular gpio: stmpe: make it explicitly non-modular gpio: sodaville: make it explicitly non-modular pinctrl: sh-pfc: Let gpio_chip.to_irq() return zero on error gpio: dwapb: Add ACPI device ID for DWAPB GPIO controller on X-Gene platforms gpio: dt-bindings: add wd,mbl-gpio bindings gpio: of: make it possible to name GPIO lines gpio: make gpiod_to_irq() return negative for NO_IRQ gpio: xgene: implement .get_direction() gpio: xgene: Enable ACPI support for X-Gene GFC GPIO driver gpio: tegra: Implement gpio_get_direction callback gpio: set up initial state from .get_direction() gpio: rename gpio-generic.c into gpio-mmio.c gpio: generic: fix GPIO_GENERIC_PLATFORM is set to module case gpio: dwapb: add gpio-signaled acpi event support gpio: dwapb: convert device node to fwnode gpio: dwapb: remove name from dwapb_port_property gpio/qoriq: select IRQ_DOMAIN ...
2016-05-17Merge branch 'for-linus' of ↵Linus Torvalds2-0/+705
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching Pull livepatching updates from Jiri Kosina: - remove of our own implementation of architecture-specific relocation code and leveraging existing code in the module loader to perform arch-dependent work, from Jessica Yu. The relevant patches have been acked by Rusty (for module.c) and Heiko (for s390). - live patching support for ppc64le, which is a joint work of Michael Ellerman and Torsten Duwe. This is coming from topic branch that is share between livepatching.git and ppc tree. - addition of livepatching documentation from Petr Mladek * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching: livepatch: make object/func-walking helpers more robust livepatch: Add some basic livepatch documentation powerpc/livepatch: Add live patching support on ppc64le powerpc/livepatch: Add livepatch stack to struct thread_info powerpc/livepatch: Add livepatch header livepatch: Allow architectures to specify an alternate ftrace location ftrace: Make ftrace_location_range() global livepatch: robustify klp_register_patch() API error checking Documentation: livepatch: outline Elf format and requirements for patch modules livepatch: reuse module loader code to write relocations module: s390: keep mod_arch_specific for livepatch modules module: preserve Elf information for livepatch modules Elf: add livepatch-specific Elf constants
2016-05-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds29-105/+734
Pull networking updates from David Miller: "Highlights: 1) Support SPI based w5100 devices, from Akinobu Mita. 2) Partial Segmentation Offload, from Alexander Duyck. 3) Add GMAC4 support to stmmac driver, from Alexandre TORGUE. 4) Allow cls_flower stats offload, from Amir Vadai. 5) Implement bpf blinding, from Daniel Borkmann. 6) Optimize _ASYNC_ bit twiddling on sockets, unless the socket is actually using FASYNC these atomics are superfluous. From Eric Dumazet. 7) Run TCP more preemptibly, also from Eric Dumazet. 8) Support LED blinking, EEPROM dumps, and rxvlan offloading in mlx5e driver, from Gal Pressman. 9) Allow creating ppp devices via rtnetlink, from Guillaume Nault. 10) Improve BPF usage documentation, from Jesper Dangaard Brouer. 11) Support tunneling offloads in qed, from Manish Chopra. 12) aRFS offloading in mlx5e, from Maor Gottlieb. 13) Add RFS and RPS support to SCTP protocol, from Marcelo Ricardo Leitner. 14) Add MSG_EOR support to TCP, this allows controlling packet coalescing on application record boundaries for more accurate socket timestamp sampling. From Martin KaFai Lau. 15) Fix alignment of 64-bit netlink attributes across the board, from Nicolas Dichtel. 16) Per-vlan stats in bridging, from Nikolay Aleksandrov. 17) Several conversions of drivers to ethtool ksettings, from Philippe Reynes. 18) Checksum neutral ILA in ipv6, from Tom Herbert. 19) Factorize all of the various marvell dsa drivers into one, from Vivien Didelot 20) Add VF support to qed driver, from Yuval Mintz" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1649 commits) Revert "phy dp83867: Fix compilation with CONFIG_OF_MDIO=m" Revert "phy dp83867: Make rgmii parameters optional" r8169: default to 64-bit DMA on recent PCIe chips phy dp83867: Make rgmii parameters optional phy dp83867: Fix compilation with CONFIG_OF_MDIO=m bpf: arm64: remove callee-save registers use for tmp registers asix: Fix offset calculation in asix_rx_fixup() causing slow transmissions switchdev: pass pointer to fib_info instead of copy net_sched: close another race condition in tcf_mirred_release() tipc: fix nametable publication field in nl compat drivers: net: Don't print unpopulated net_device name qed: add support for dcbx. ravb: Add missing free_irq() calls to ravb_close() qed: Remove a stray tab net: ethernet: fec-mpc52xx: use phy_ethtool_{get|set}_link_ksettings net: ethernet: fec-mpc52xx: use phydev from struct net_device bpf, doc: fix typo on bpf_asm descriptions stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set net: ethernet: fs-enet: use phy_ethtool_{get|set}_link_ksettings net: ethernet: fs-enet: use phydev from struct net_device ...
2016-05-17Merge tag 'dm-4.7-changes' of ↵Linus Torvalds2-19/+17
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - based on Jens' 'for-4.7/core' to have DM thinp's discard support use bio_inc_remaining() and the block core's new async __blkdev_issue_discard() interface - make DM multipath's fast code-paths lockless, using lockless_deference, to significantly improve large NUMA performance when using blk-mq. The m->lock spinlock contention was a serious bottleneck. - a few other small code cleanups and Documentation fixes * tag 'dm-4.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm thin: unroll issue_discard() to create longer discard bio chains dm thin: use __blkdev_issue_discard for async discard support dm thin: remove __bio_inc_remaining() and switch to using bio_inc_remaining() dm raid: make sure no feature flags are set in metadata dm ioctl: drop use of __GFP_REPEAT in copy_params()'s __vmalloc() call dm stats: fix spelling mistake in Documentation dm cache: update cache-policies.txt now that mq is an alias for smq dm mpath: eliminate use of spinlock in IO fast-paths dm mpath: move trigger_event member to the end of 'struct multipath' dm mpath: use atomic_t for counting members of 'struct multipath' dm mpath: switch to using bitops for state flags dm thin: Remove return statement from void function dm: remove unused mapped_device argument from free_tio()
2016-05-17Merge branch 'for-4.7/drivers' of git://git.kernel.dk/linux-blockLinus Torvalds1-2/+2
Pull block driver updates from Jens Axboe: "On top of the core pull request, this is the drivers pull request for this merge window. This contains: - Switch drivers to the new write back cache API, and kill off the flush flags. From me. - Kill the discard support for the STEC pci-e flash driver. It's trivially broken, and apparently unmaintained, so it's safer to just remove it. From Jeff Moyer. - A set of lightnvm updates from the usual suspects (Matias/Javier, and Simon), and fixes from Arnd, Jeff Mahoney, Sagi, and Wenwei Tao. - A set of updates for NVMe: - Turn the controller state management into a proper state machine. From Christoph. - Shuffling of code in preparation for NVMe-over-fabrics, also from Christoph. - Cleanup of the command prep part from Ming Lin. - Rewrite of the discard support from Ming Lin. - Deadlock fix for namespace removal from Ming Lin. - Use the now exported blk-mq tag helper for IO termination. From Sagi. - Various little fixes from Christoph, Guilherme, Keith, Ming Lin, Wang Sheng-Hui. - Convert mtip32xx to use the now exported blk-mq tag iter function, from Keith" * 'for-4.7/drivers' of git://git.kernel.dk/linux-block: (74 commits) lightnvm: reserved space calculation incorrect lightnvm: rename nr_pages to nr_ppas on nvm_rq lightnvm: add is_cached entry to struct ppa_addr lightnvm: expose gennvm_mark_blk to targets lightnvm: remove mgt targets on mgt removal lightnvm: pass dma address to hardware rather than pointer lightnvm: do not assume sequential lun alloc. nvme/lightnvm: Log using the ctrl named device lightnvm: rename dma helper functions lightnvm: enable metadata to be sent to device lightnvm: do not free unused metadata on rrpc lightnvm: fix out of bound ppa lun id on bb tbl lightnvm: refactor set_bb_tbl for accepting ppa list lightnvm: move responsibility for bad blk mgmt to target lightnvm: make nvm_set_rqd_ppalist() aware of vblks lightnvm: remove struct factory_blks lightnvm: refactor device ops->get_bb_tbl() lightnvm: introduce nvm_for_each_lun_ppa() macro lightnvm: refactor dev->online_target to global nvm_targets lightnvm: rename nvm_targets to nvm_tgt_type ...
2016-05-17Merge branch 'for-4.7/core' of git://git.kernel.dk/linux-blockLinus Torvalds1-0/+9
Pull core block layer updates from Jens Axboe: "This is the core block IO changes for this merge window. Nothing earth shattering in here, it's mostly just fixes. In detail: - Fix for a long standing issue where wrong ordering in blk-mq caused order_to_size() to spew a warning. From Bart. - Async discard support from Christoph. Basically just splitting our sync interface into a submit + wait part. - Add a cleaner interface for flagging whether a device has a write back cache or not. We've previously overloaded blk_queue_flush() with this, but let's make it more explicit. Drivers cleaned up and updated in the drivers pull request. From me. - Fix for a double check for whether IO accounting is enabled or not. From Michael Callahan. - Fix for the async discard from Mike Snitzer, reinstating the early EOPNOTSUPP return if the device doesn't support discards. - Also from Mike, export bio_inc_remaining() so dm can drop it's private copy of it. - From Ming Lin, add support for passing in an offset for request payloads. - Tag function export from Sagi, which will be used in NVMe in the drivers pull. - Two blktrace related fixes from Shaohua. - Propagate NOMERGE flag when making a request from a bio, also from Shaohua. - An optimization to not parse cgroup paths in blk-throttle, if we don't need to. From Shaohua" * 'for-4.7/core' of git://git.kernel.dk/linux-block: blk-mq: fix undefined behaviour in order_to_size() blk-throttle: don't parse cgroup path if trace isn't enabled blktrace: add missed mask name blktrace: delete garbage for message trace block: make bio_inc_remaining() interface accessible again block: reinstate early return of -EOPNOTSUPP from blkdev_issue_discard block: Minor blk_account_io_start usage cleanup block: add __blkdev_issue_discard block: remove struct bio_batch block: copy NOMERGE flag from bio to request block: add ability to flag write back caching on a device blk-mq: Export tagset iter function block: add offset in blk_add_request_payload() writeback: Fix performance regression in wb_over_bg_thresh()
2016-05-17doc: self-protection: provide initial detailsKees Cook1-0/+261
This document attempts to codify the intent around kernel self-protection along with discussion of both existing and desired technologies, with attention given to the rationale behind them, and the expectations of their usage. Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> [jc: applied fixes suggested by Randy] Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-05-17Merge branch 'work.preadv2' of ↵Linus Torvalds2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs cleanups from Al Viro: "More cleanups from Christoph" * 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: nfsd: use RWF_SYNC fs: add RWF_DSYNC aand RWF_SYNC ceph: use generic_write_sync fs: simplify the generic_write_sync prototype fs: add IOCB_SYNC and IOCB_DSYNC direct-io: remove the offset argument to dio_complete direct-io: eliminate the offset argument to ->direct_IO xfs: eliminate the pos variable in xfs_file_dio_aio_write filemap: remove the pos argument to generic_file_direct_write filemap: remove pos variables in generic_file_read_iter
2016-05-17Merge branch 'for-linus' of ↵Linus Torvalds1-0/+53
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull parallel filesystem directory handling update from Al Viro. This is the main parallel directory work by Al that makes the vfs layer able to do lookup and readdir in parallel within a single directory. That's a big change, since this used to be all protected by the directory inode mutex. The inode mutex is replaced by an rwsem, and serialization of lookups of a single name is done by a "in-progress" dentry marker. The series begins with xattr cleanups, and then ends with switching filesystems over to actually doing the readdir in parallel (switching to the "iterate_shared()" that only takes the read lock). A more detailed explanation of the process from Al Viro: "The xattr work starts with some acl fixes, then switches ->getxattr to passing inode and dentry separately. This is the point where the things start to get tricky - that got merged into the very beginning of the -rc3-based #work.lookups, to allow untangling the security_d_instantiate() mess. The xattr work itself proceeds to switch a lot of filesystems to generic_...xattr(); no complications there. After that initial xattr work, the series then does the following: - untangle security_d_instantiate() - convert a bunch of open-coded lookup_one_len_unlocked() to calls of that thing; one such place (in overlayfs) actually yields a trivial conflict with overlayfs fixes later in the cycle - overlayfs ended up switching to a variant of lookup_one_len_unlocked() sans the permission checks. I would've dropped that commit (it gets overridden on merge from #ovl-fixes in #for-next; proper resolution is to use the variant in mainline fs/overlayfs/super.c), but I didn't want to rebase the damn thing - it was fairly late in the cycle... - some filesystems had managed to depend on lookup/lookup exclusion for *fs-internal* data structures in a way that would break if we relaxed the VFS exclusion. Fixing hadn't been hard, fortunately. - core of that series - parallel lookup machinery, replacing ->i_mutex with rwsem, making lookup_slow() take it only shared. At that point lookups happen in parallel; lookups on the same name wait for the in-progress one to be done with that dentry. Surprisingly little code, at that - almost all of it is in fs/dcache.c, with fs/namei.c changes limited to lookup_slow() - making it use the new primitive and actually switching to locking shared. - parallel readdir stuff - first of all, we provide the exclusion on per-struct file basis, same as we do for read() vs lseek() for regular files. That takes care of most of the needed exclusion in readdir/readdir; however, these guys are trickier than lookups, so I went for switching them one-by-one. To do that, a new method '->iterate_shared()' is added and filesystems are switched to it as they are either confirmed to be OK with shared lock on directory or fixed to be OK with that. I hope to kill the original method come next cycle (almost all in-tree filesystems are switched already), but it's still not quite finished. - several filesystems get switched to parallel readdir. The interesting part here is dealing with dcache preseeding by readdir; that needs minor adjustment to be safe with directory locked only shared. Most of the filesystems doing that got switched to in those commits. Important exception: NFS. Turns out that NFS folks, with their, er, insistence on VFS getting the fuck out of the way of the Smart Filesystem Code That Knows How And What To Lock(tm) have grown the locking of their own. They had their own homegrown rwsem, with lookup/readdir/atomic_open being *writers* (sillyunlink is the reader there). Of course, with VFS getting the fuck out of the way, as requested, the actual smarts of the smart filesystem code etc. had become exposed... - do_last/lookup_open/atomic_open cleanups. As the result, open() without O_CREAT locks the directory only shared. Including the ->atomic_open() case. Backmerge from #for-linus in the middle of that - atomic_open() fix got brought in. - then comes NFS switch to saner (VFS-based ;-) locking, killing the homegrown "lookup and readdir are writers" kinda-sorta rwsem. All exclusion for sillyunlink/lookup is done by the parallel lookups mechanism. Exclusion between sillyunlink and rmdir is a real rwsem now - rmdir being the writer. Result: NFS lookups/readdirs/O_CREAT-less opens happen in parallel now. - the rest of the series consists of switching a lot of filesystems to parallel readdir; in a lot of cases ->llseek() gets simplified as well. One backmerge in there (again, #for-linus - rockridge fix)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (74 commits) ext4: switch to ->iterate_shared() hfs: switch to ->iterate_shared() hfsplus: switch to ->iterate_shared() hostfs: switch to ->iterate_shared() hpfs: switch to ->iterate_shared() hpfs: handle allocation failures in hpfs_add_pos() gfs2: switch to ->iterate_shared() f2fs: switch to ->iterate_shared() afs: switch to ->iterate_shared() befs: switch to ->iterate_shared() befs: constify stuff a bit isofs: switch to ->iterate_shared() get_acorn_filename(): deobfuscate a bit btrfs: switch to ->iterate_shared() logfs: no need to lock directory in lseek switch ecryptfs to ->iterate_shared 9p: switch to ->iterate_shared() fat: switch to ->iterate_shared() romfs, squashfs: switch to ->iterate_shared() more trivial ->iterate_shared conversions ...
2016-05-17Merge branch 'irq-core-for-linus' of ↵Linus Torvalds2-2/+62
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "This update delivers: - Yet another interrupt chip diver (LPC32xx) - Core functions to handle partitioned per-cpu interrupts - Enhancements to the IPI core - Proper handling of irq type configuration - A large set of ARM GIC enhancements - The usual pile of small fixes, cleanups and enhancements" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits) irqchip/bcm2836: Use a more generic memory barrier call irqchip/bcm2836: Fix compiler warning on 64-bit build irqchip/bcm2836: Drop smp_set_ops on arm64 builds irqchip/gic: Add helper functions for GIC setup and teardown irqchip/gic: Store GIC configuration parameters irqchip/gic: Pass GIC pointer to save/restore functions irqchip/gic: Return an error if GIC initialisation fails irqchip/gic: Remove static irq_chip definition for eoimode1 irqchip/gic: Don't initialise chip if mapping IO space fails irqchip/gic: WARN if setting the interrupt type for a PPI fails irqchip/gic: Don't unnecessarily write the IRQ configuration irqchip: Mask the non-type/sense bits when translating an IRQ genirq: Ensure IRQ descriptor is valid when setting-up the IRQ irqchip/gic-v3: Configure all interrupts as non-secure Group-1 irqchip/gic-v2m: Add workaround for Broadcom NS2 GICv2m erratum irqchip/irq-alpine-msi: Don't use <asm-generic/msi.h> irqchip/mbigen: Checking for IS_ERR() instead of NULL irqchip/gic-v3: Remove inexistant register definition irqchip/gicv3-its: Don't allow devices whose ID is outside range irqchip: Add LPC32xx interrupt controller driver ...