forked from Minki/linux
c8b2ba83fb
25215 Commits
Author | SHA1 | Message | Date | |
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Linus Torvalds
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c8b2ba83fb |
Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner: - Fix the EINTR logic in rwsem-spinlock to avoid double locking by a writer and a reader - Add a missing include to qspinlocks * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/qspinlock: Explicitly include asm/prefetch.h locking/rwsem-spinlock: Fix EINTR branch in __down_write_common() |
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Linus Torvalds
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7cb328c30a |
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner: - A few fixes mopping up the fallout of the big irq overhaul - Move the interrupt resource management logic out of the spin locked, irq disabled region to avoid unnecessary restrictions of the resource callbacks - Preparation for reworking the per cpu irq request function. * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqdomain: Allow ACPI device nodes to be used as irqdomain identifiers genirq/debugfs: Remove redundant NULL pointer check genirq: Allow to pass the IRQF_TIMER flag with percpu irq request genirq/timings: Move free timings out of spinlocked region genirq: Move irq resource handling out of spinlocked region genirq: Add mutex to irq desc to serialize request/free_irq() genirq: Move bus locking into __setup_irq() genirq: Force inlining of __irq_startup_managed to prevent build failure genirq/debugfs: Fix build for !CONFIG_IRQ_DOMAIN |
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Linus Torvalds
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e28e9e3ec0 |
Merge branch 'waitid-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull waitid fix from Al Viro. * 'waitid-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix waitid(2) breakage |
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Linus Torvalds
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f263fbb8d6 |
pci-v4.13-changes
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZYAFUAAoJEFmIoMA60/r8cFQP/A4fpdjhd42WRNQXGTpZieop i40lBQtGdBn/UY97U6BoutcS1ygDi9OiSzg+IR6I90iMgidqyUHFhe4hGWgVHD2g Tg0KLzd+lKKfQ6Gqt1P6t4dLGLvyEj5NUbCeFE4XYODAUkkiBaOndax6DK1GvU54 Vjuj63rHtMKFR/tG/4iFTigObqyI8QE6O9JVxwuvIyEX6RXKbJe+wkulv5taSnWt Ne94950i10MrELtNreVdi8UbCbXiqjg0r5sKI/WTJ7Bc7WsC7X5PhWlhcNrbHyBT Ivhoypkui3Ky8gvwWqL0KBG+cRp8prBXAdabrD9wRbz0TKnfGI6pQzseCGRnkE6T mhlSJpsSNIHaejoCjk93yPn5oRiTNtPMdVhMpEQL9V/crVRGRRmbd7v2TYvpMHVR JaPZ8bv+C2aBTY8uL3/v/rgrjsMKOYFeaxeNklpErxrknsbgb6BgubmeZXDvTBVv YUIbAkvveonUKisv+kbD8L7tp1+jdbRUT0AikS0NVgAJQhfArOmBcDpTL9YC51vE feFhkVx4A32vvOm7Zcg9A7IMXNjeSfccKGw3dJOAvzgDODuJiaCG6S0o7B5Yngze axMi87ixGT4QM98z/I4MC8E9rDrJdIitlpvb6ZBgiLzoO3kmvsIZZKt8UxWqf5r8 w3U2HoyKH13Qbkn1xkum =mkyb -----END PGP SIGNATURE----- Merge tag 'pci-v4.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - add sysfs max_link_speed/width, current_link_speed/width (Wong Vee Khee) - make host bridge IRQ mapping much more generic (Matthew Minter, Lorenzo Pieralisi) - convert most drivers to pci_scan_root_bus_bridge() (Lorenzo Pieralisi) - mutex sriov_configure() (Jakub Kicinski) - mutex pci_error_handlers callbacks (Christoph Hellwig) - split ->reset_notify() into ->reset_prepare()/reset_done() (Christoph Hellwig) - support multiple PCIe portdrv interrupts for MSI as well as MSI-X (Gabriele Paoloni) - allocate MSI/MSI-X vector for Downstream Port Containment (Gabriele Paoloni) - fix MSI IRQ affinity pre/post/min_vecs issue (Michael Hernandez) - test INTx masking during enumeration, not at run-time (Piotr Gregor) - avoid using device_may_wakeup() for runtime PM (Rafael J. Wysocki) - restore the status of PCI devices across hibernation (Chen Yu) - keep parent resources that start at 0x0 (Ard Biesheuvel) - enable ECRC only if device supports it (Bjorn Helgaas) - restore PRI and PASID state after Function-Level Reset (CQ Tang) - skip DPC event if device is not present (Keith Busch) - check domain when matching SMBIOS info (Sujith Pandel) - mark Intel XXV710 NIC INTx masking as broken (Alex Williamson) - avoid AMD SB7xx EHCI USB wakeup defect (Kai-Heng Feng) - work around long-standing Macbook Pro poweroff issue (Bjorn Helgaas) - add Switchtec "running" status flag (Logan Gunthorpe) - fix dra7xx incorrect RW1C IRQ register usage (Arvind Yadav) - modify xilinx-nwl IRQ chip for legacy interrupts (Bharat Kumar Gogada) - move VMD SRCU cleanup after bus, child device removal (Jon Derrick) - add Faraday clock handling (Linus Walleij) - configure Rockchip MPS and reorganize (Shawn Lin) - limit Qualcomm TLP size to 2K (hardware issue) (Srinivas Kandagatla) - support Tegra MSI 64-bit addressing (Thierry Reding) - use Rockchip normal (not privileged) register bank (Shawn Lin) - add HiSilicon Kirin SoC PCIe controller driver (Xiaowei Song) - add Sigma Designs Tango SMP8759 PCIe controller driver (Marc Gonzalez) - add MediaTek PCIe host controller support (Ryder Lee) - add Qualcomm IPQ4019 support (John Crispin) - add HyperV vPCI protocol v1.2 support (Jork Loeser) - add i.MX6 regulator support (Quentin Schulz) * tag 'pci-v4.13-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (113 commits) PCI: tango: Add Sigma Designs Tango SMP8759 PCIe host bridge support PCI: Add DT binding for Sigma Designs Tango PCIe controller PCI: rockchip: Use normal register bank for config accessors dt-bindings: PCI: Add documentation for MediaTek PCIe PCI: Remove __pci_dev_reset() and pci_dev_reset() PCI: Split ->reset_notify() method into ->reset_prepare() and ->reset_done() PCI: xilinx: Make of_device_ids const PCI: xilinx-nwl: Modify IRQ chip for legacy interrupts PCI: vmd: Move SRCU cleanup after bus, child device removal PCI: vmd: Correct comment: VMD domains start at 0x10000, not 0x1000 PCI: versatile: Add local struct device pointers PCI: tegra: Do not allocate MSI target memory PCI: tegra: Support MSI 64-bit addressing PCI: rockchip: Use local struct device pointer consistently PCI: rockchip: Check for clk_prepare_enable() errors during resume MAINTAINERS: Remove Wenrui Li as Rockchip PCIe driver maintainer PCI: rockchip: Configure RC's MPS setting PCI: rockchip: Reconfigure configuration space header type PCI: rockchip: Split out rockchip_pcie_cfg_configuration_accesses() PCI: rockchip: Move configuration accesses into rockchip_pcie_cfg_atu() ... |
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Linus Torvalds
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fe1b518075 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller: 1) Queued spinlocks and rwlocks for sparc64, from Babu Moger. 2) Some const'ification from Arvind Yadav. 3) LDC/VIO driver infrastructure changes to facilitate future upcoming drivers, from Jag Raman. 4) Initialize sched_clock() et al. early so that the initial printk timestamps are all done while the implementation is available and functioning. From Pavel Tatashin. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (38 commits) sparc: kernel: pmc: make of_device_ids const. sparc64: fix typo in property sparc64: add port_id to VIO device metadata sparc64: Enhance search for VIO device in MDESC sparc64: enhance VIO device probing sparc64: check if a client is allowed to register for MDESC notifications sparc64: remove restriction on VIO device name size sparc64: refactor code to obtain cfg_handle property from MDESC sparc64: add MDESC node name property to VIO device metadata sparc64: mdesc: use __GFP_REPEAT action modifier for VM allocation sparc64: expand MDESC interface sparc64: skip handshake for LDC channels in RAW mode sparc64: specify the device class in VIO version info. packet sparc64: ensure VIO operations are defined while being used sparc: kernel: apc: make of_device_ids const sparc/time: make of_device_ids const sparc64: broken %tick frequency on spitfire cpus sparc64: use prom interface to get %stick frequency sparc64: optimize functions that access tick sparc64: add hot-patched and inlined get_tick() ... |
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Al Viro
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634a816095 |
fix waitid(2) breakage
We lose the distinction between "found a PID" and "nothing, but that's not
an error" a bit too early in waitid(). Easily fixed, fortunately...
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Fixes:
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Stafford Horne
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5671360f29 |
locking/qspinlock: Explicitly include asm/prefetch.h
In architectures that use qspinlock, like x86, prefetch is loaded indirectly via the asm/qspinlock.h include. On other architectures, like OpenRISC, which may want to use asm-generic/qspinlock.h the built will fail without the asm/prefetch.h include. Fix this by including directly. Signed-off-by: Stafford Horne <shorne@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20170707195658.23840-1-shorne@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Linus Torvalds
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ef3ad0898a |
linux-kselftest-4.13-rc1-update
This update consists of: -- TAP13 framework and changes to some tests to convert to TAP13. Converting kselftest output to standard format will help identify run to run differences and pin point failures easily. TAP13 format has been in use for several years and the output is human friendly. Please find the specification: https://testanything.org/tap-version-13-specification.html Credit goes to Tim Bird for recommending TAP13 as a suitable format, and to Grag KH for kick starting the work with help from Paul Elder and Alice Ferrazzi The first phase of the TAp13 conversion is included in this update. Future updates will include updates to rest of the tests. -- Masami Hiramatsu fixed ftrace to run on 4.9 stable kernels. -- Kselftest documnetation has been converted to ReST format. Document now has a new home under Documentation/dev-tools. -- kselftest_harness.h is now available for general use as a result of Mickaël Salaün's work. -- Several fixes to skip and/or fail tests gracefully on older releases. -----BEGIN PGP SIGNATURE----- iQIcBAABCAAGBQJZXo9JAAoJEAsCRMQNDUMc1OUQAOJsBFWiMgWWxOZg1RBT5khl 7OvGLoHsu3qydF5gzVnyDuEZAGHRc4c6OKqbHIqQB3tp9o4PnX2m9KIa6z7sjzys jett2ZjMe7BtctBluZF0zVyCbRdAXgfxp7QGfv/CkN+hw4uztwFwen4LpwvJseLd gkie/lVPFKszyaWfiF3pDPazk5qhc53ChjAhnSkRY8HlwFcVtZwO7Ptvex0l8gO2 t+ZxhX9zt3jxRbiHq5h/N6EDw2pPthvSR4iT4FcyYiwqxUK64Nq5RQpkxJTfu0iz l2mxMTNol/tDKH+iOvWJX565LzVXxonCf8Cne4mooqegkn0f2bnkPqoE5N8OwTdd oIGT/Vq84C5eQwPubtr2oXr6Xh7pywbPW8h7fn972QWl5ySbR4JEmdBzSviF5ALq Dwz8lJeGX6qYpSKz8aVqKYJ3U31hYxT/EPhGIJ4VtjcTxyfgcobaD26W0vT0Cjad dIdK11IDMxErquS1Vb/kkTzVxCnVhmWRsjmUeKLl/FxDkhiJmjIxaCOvtitzsiHz tooMpcCQ7Z97QbDxKfolpcCC563okYhUoca3EhZLq9pZkEwfbGN9YI4/i608oSaA K4mJgdL6c704TqGwouIBn/+MTWq4LOkzN2zUP0kpY2z61GvEPMYxmdoQBn2yHBb9 cnt9MZNlZML2YqnMjiDf =j1Um -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest updates from Shuah Khan: "This update consists of: - TAP13 framework and changes to some tests to convert to TAP13. Converting kselftest output to standard format will help identify run to run differences and pin point failures easily. TAP13 format has been in use for several years and the output is human friendly. Please find the specification: https://testanything.org/tap-version-13-specification.html Credit goes to Tim Bird for recommending TAP13 as a suitable format, and to Grag KH for kick starting the work with help from Paul Elder and Alice Ferrazzi The first phase of the TAp13 conversion is included in this update. Future updates will include updates to rest of the tests. - Masami Hiramatsu fixed ftrace to run on 4.9 stable kernels. - Kselftest documnetation has been converted to ReST format. Document now has a new home under Documentation/dev-tools. - kselftest_harness.h is now available for general use as a result of Mickaël Salaün's work. - Several fixes to skip and/or fail tests gracefully on older releases" * tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (48 commits) selftests: membarrier: use ksft_* var arg msg api selftests: breakpoints: breakpoint_test_arm64: convert test to use TAP13 selftests: breakpoints: step_after_suspend_test use ksft_* var arg msg api selftests: breakpoint_test: use ksft_* var arg msg api kselftest: add ksft_print_msg() function to output general information kselftest: make ksft_* output functions variadic selftests/capabilities: Fix the test_execve test selftests: intel_pstate: add .gitignore selftests: fix memory-hotplug test selftests: add missing test name in memory-hotplug test selftests: check percentage range for memory-hotplug test selftests: check hot-pluggagble memory for memory-hotplug test selftests: typo correction for memory-hotplug test selftests: ftrace: Use md5sum to take less time of checking logs tools/testing/selftests/sysctl: Add pre-check to the value of writes_strict kselftest.rst: do some adjustments after ReST conversion selftest/net/Makefile: Specify output with $(OUTPUT) selftest/intel_pstate/aperf: Use LDLIBS instead of LDFLAGS selftest/memfd/Makefile: Fix build error selftests: lib: Skip tests on missing test modules ... |
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Marc Zyngier
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c5c601c429 |
irqdomain: Allow ACPI device nodes to be used as irqdomain identifiers
A number of irqchip implementations are (ab)using the irqdomain allocator by passing a fwnode that is neither a FWNODE_OF or a FWNODE_IRQCHIP. This is pretty bad, but it also feels pretty crap to force these drivers to allocate their own irqchip_fwid when they already have a proper fwnode. Instead, let's teach the irqdomain allocator about ACPI device nodes, and add some lovely name generation code... Tested on an arm64 D05 system. Reported-and-tested-by: John Garry <john.garry@huawei.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Agustin Vega-Frias <agustinv@codeaurora.org> Cc: Ma Jun <majun258@huawei.com> Cc: Hanjun Guo <hanjun.guo@linaro.org> Link: http://lkml.kernel.org/r/20170707083959.10349-1-marc.zyngier@arm.com |
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Thomas Gleixner
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f610c9d68b |
genirq/debugfs: Remove redundant NULL pointer check
debugfs_remove() can be called with a NULL pointer.
Fixes:
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Linus Torvalds
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9f45efb928 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: - a few hotfixes - various misc updates - ocfs2 updates - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (108 commits) mm, memory_hotplug: move movable_node to the hotplug proper mm, memory_hotplug: drop CONFIG_MOVABLE_NODE mm, memory_hotplug: drop artificial restriction on online/offline mm: memcontrol: account slab stats per lruvec mm: memcontrol: per-lruvec stats infrastructure mm: memcontrol: use generic mod_memcg_page_state for kmem pages mm: memcontrol: use the node-native slab memory counters mm: vmstat: move slab statistics from zone to node counters mm/zswap.c: delete an error message for a failed memory allocation in zswap_dstmem_prepare() mm/zswap.c: improve a size determination in zswap_frontswap_init() mm/zswap.c: delete an error message for a failed memory allocation in zswap_pool_create() mm/swapfile.c: sort swap entries before free mm/oom_kill: count global and memory cgroup oom kills mm: per-cgroup memory reclaim stats mm: kmemleak: treat vm_struct as alternative reference to vmalloc'ed objects mm: kmemleak: factor object reference updating out of scan_block() mm: kmemleak: slightly reduce the size of some structures on 64-bit architectures mm, mempolicy: don't check cpuset seqlock where it doesn't matter mm, cpuset: always use seqlock when changing task's nodemask mm, mempolicy: simplify rebinding mempolicies when updating cpusets ... |
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Linus Torvalds
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c856863988 |
Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc compat stuff updates from Al Viro: "This part is basically untangling various compat stuff. Compat syscalls moved to their native counterparts, getting rid of quite a bit of double-copying and/or set_fs() uses. A lot of field-by-field copyin/copyout killed off. - kernel/compat.c is much closer to containing just the copyin/copyout of compat structs. Not all compat syscalls are gone from it yet, but it's getting there. - ipc/compat_mq.c killed off completely. - block/compat_ioctl.c cleaned up; floppy compat ioctls moved to drivers/block/floppy.c where they belong. Yes, there are several drivers that implement some of the same ioctls. Some are m68k and one is 32bit-only pmac. drivers/block/floppy.c is the only one in that bunch that can be built on biarch" * 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: mqueue: move compat syscalls to native ones usbdevfs: get rid of field-by-field copyin compat_hdio_ioctl: get rid of set_fs() take floppy compat ioctls to sodding floppy.c ipmi: get rid of field-by-field __get_user() ipmi: get COMPAT_IPMICTL_RECEIVE_MSG in sync with the native one rt_sigtimedwait(): move compat to native select: switch compat_{get,put}_fd_set() to compat_{get,put}_bitmap() put_compat_rusage(): switch to copy_to_user() sigpending(): move compat to native getrlimit()/setrlimit(): move compat to native times(2): move compat to native compat_{get,put}_bitmap(): use unsafe_{get,put}_user() fb_get_fscreeninfo(): don't bother with do_fb_ioctl() do_sigaltstack(): lift copying to/from userland into callers take compat_sys_old_getrlimit() to native syscall trim __ARCH_WANT_SYS_OLD_GETRLIMIT |
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Linus Torvalds
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2074006dac |
The new features of this release:
- Added TRACE_DEFINE_SIZEOF() which allows trace events that use sizeof() it the TP_printk() to be converted to the actual size such that trace-cmd and perf can parse them correctly. - Some rework of the TRACE_DEFINE_ENUM() such that the above TRACE_DEFINE_SIZEOF() could reuse the same code. - Recording of tgid (Thread Group ID). This is similar to how task COMMs are recorded (cached at sched_switch), where it is in a table and used on output of the trace and trace_pipe files. - Have ":mod:<module>" be cached when written into set_ftrace_filter. Then the functions of the module will be traced at module load. - Some random clean ups and small fixes. -----BEGIN PGP SIGNATURE----- iQExBAABCAAbBQJZXjYuFBxyb3N0ZWR0QGdvb2RtaXMub3JnAAoJEMm5BfJq2Y3L fsgIAKUvhpn2igoYCR9tWqu+DovEmwxCIumbCzmCFQcRKlLttRte94yY5+W9hnV0 JPzd9T9zBDVqq1fI7iIop1SuTwEfKW6lJom0usZ8AFpK+YKm6FHnQ28POlvHzre2 lzO41tpRWiehLQsITZ47eByhsvEfhx86mYT/oM1JSR6Pii1OpjyNYmDMw6BaMNBT kSCQFgIhzAhVuHjwAnB/S++E/ou7M5bCwCb5CNh7MubKubV5upHpoJcgYGO+WWa6 56H/iEhff4EECTGJVefd8e78MtJPL8EsuM0nAcMPlnl8AaiOpP7XCdlgTwdefLvP b3o+nP15voSHkARGXC6eM6gH0po= =rvGB -----END PGP SIGNATURE----- Merge tag 'trace-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "The new features of this release: - Added TRACE_DEFINE_SIZEOF() which allows trace events that use sizeof() it the TP_printk() to be converted to the actual size such that trace-cmd and perf can parse them correctly. - Some rework of the TRACE_DEFINE_ENUM() such that the above TRACE_DEFINE_SIZEOF() could reuse the same code. - Recording of tgid (Thread Group ID). This is similar to how task COMMs are recorded (cached at sched_switch), where it is in a table and used on output of the trace and trace_pipe files. - Have ":mod:<module>" be cached when written into set_ftrace_filter. Then the functions of the module will be traced at module load. - Some random clean ups and small fixes" * tag 'trace-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (26 commits) ftrace: Test for NULL iter->tr in regex for stack_trace_filter changes ftrace: Decrement count for dyn_ftrace_total_info for init functions ftrace: Unlock hash mutex on failed allocation in process_mod_list() tracing: Add support for display of tgid in trace output tracing: Add support for recording tgid of tasks ftrace: Decrement count for dyn_ftrace_total_info file ftrace: Remove unused function ftrace_arch_read_dyn_info() sh/ftrace: Remove only user of ftrace_arch_read_dyn_info() ftrace: Have cached module filters be an active filter ftrace: Implement cached modules tracing on module load ftrace: Have the cached module list show in set_ftrace_filter ftrace: Add :mod: caching infrastructure to trace_array tracing: Show address when function names are not found ftrace: Add missing comment for FTRACE_OPS_FL_RCU tracing: Rename update the enum_map file tracing: Add TRACE_DEFINE_SIZEOF() macros tracing: define TRACE_DEFINE_SIZEOF() macro to map sizeof's to their values tracing: Rename enum_replace to eval_replace trace: rename enum_map functions trace: rename trace.c enum functions ... |
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Johannes Weiner
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ed52be7bfd |
mm: memcontrol: use generic mod_memcg_page_state for kmem pages
The kmem-specific functions do the same thing. Switch and drop. Link: http://lkml.kernel.org/r/20170530181724.27197-5-hannes@cmpxchg.org Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Josef Bacik <josef@toxicpanda.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
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5f155f27cb |
mm, cpuset: always use seqlock when changing task's nodemask
When updating task's mems_allowed and rebinding its mempolicy due to cpuset's mems being changed, we currently only take the seqlock for writing when either the task has a mempolicy, or the new mems has no intersection with the old mems. This should be enough to prevent a parallel allocation seeing no available nodes, but the optimization is IMHO unnecessary (cpuset updates should not be frequent), and we still potentially risk issues if the intersection of new and old nodes has limited amount of free/reclaimable memory. Let's just use the seqlock for all tasks. Link: http://lkml.kernel.org/r/20170517081140.30654-6-vbabka@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Michal Hocko <mhocko@suse.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Hugh Dickins <hughd@google.com> Cc: Li Zefan <lizefan@huawei.com> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
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213980c0f2 |
mm, mempolicy: simplify rebinding mempolicies when updating cpusets
Commit |
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Pavel Tatashin
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3d375d7859 |
mm: update callers to use HASH_ZERO flag
Update dcache, inode, pid, mountpoint, and mount hash tables to use HASH_ZERO, and remove initialization after allocations. In case of places where HASH_EARLY was used such as in __pv_init_lock_hash the zeroed hash table was already assumed, because memblock zeroes the memory. CPU: SPARC M6, Memory: 7T Before fix: Dentry cache hash table entries: 1073741824 Inode-cache hash table entries: 536870912 Mount-cache hash table entries: 16777216 Mountpoint-cache hash table entries: 16777216 ftrace: allocating 20414 entries in 40 pages Total time: 11.798s After fix: Dentry cache hash table entries: 1073741824 Inode-cache hash table entries: 536870912 Mount-cache hash table entries: 16777216 Mountpoint-cache hash table entries: 16777216 ftrace: allocating 20414 entries in 40 pages Total time: 3.198s CPU: Intel Xeon E5-2630, Memory: 2.2T: Before fix: Dentry cache hash table entries: 536870912 Inode-cache hash table entries: 268435456 Mount-cache hash table entries: 8388608 Mountpoint-cache hash table entries: 8388608 CPU: Physical Processor ID: 0 Total time: 3.245s After fix: Dentry cache hash table entries: 536870912 Inode-cache hash table entries: 268435456 Mount-cache hash table entries: 8388608 Mountpoint-cache hash table entries: 8388608 CPU: Physical Processor ID: 0 Total time: 3.244s Link: http://lkml.kernel.org/r/1488432825-92126-4-git-send-email-pasha.tatashin@oracle.com Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com> Reviewed-by: Babu Moger <babu.moger@oracle.com> Cc: David Miller <davem@davemloft.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mike Rapoport
|
57ecbd3831 |
kernel/exit.c: don't include unused userfaultfd_k.h
Commit
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Michal Hocko
|
3d79a728f9 |
mm, memory_hotplug: replace for_device by want_memblock in arch_add_memory
arch_add_memory gets for_device argument which then controls whether we want to create memblocks for created memory sections. Simplify the logic by telling whether we want memblocks directly rather than going through pointless negation. This also makes the api easier to understand because it is clear what we want rather than nothing telling for_device which can mean anything. This shouldn't introduce any functional change. Link: http://lkml.kernel.org/r/20170515085827.16474-13-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Tested-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Balbir Singh <bsingharora@gmail.com> Cc: Daniel Kiper <daniel.kiper@oracle.com> Cc: David Rientjes <rientjes@google.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Joonsoo Kim <js1304@gmail.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Reza Arbab <arbab@linux.vnet.ibm.com> Cc: Tobias Regnery <tobias.regnery@gmail.com> Cc: Toshi Kani <toshi.kani@hpe.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Xishi Qiu <qiuxishi@huawei.com> Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Michal Hocko
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f1dd2cd13c |
mm, memory_hotplug: do not associate hotadded memory to zones until online
The current memory hotplug implementation relies on having all the struct pages associate with a zone/node during the physical hotplug phase (arch_add_memory->__add_pages->__add_section->__add_zone). In the vast majority of cases this means that they are added to ZONE_NORMAL. This has been so since |
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Michael Ellerman
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563ec5cbc6 |
kernel/module.c: use linux/set_memory.h
This header always exists, so doesn't require an ifdef around its inclusion. When CONFIG_ARCH_HAS_SET_MEMORY=y it includes the asm header, otherwise it provides empty versions of the set_memory_xx() routines. The usages of set_memory_xx() are still guarded by CONFIG_STRICT_MODULE_RWX. Link: http://lkml.kernel.org/r/1498717781-29151-3-git-send-email-mpe@ellerman.id.au Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Laura Abbott <labbott@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Michael Ellerman
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61f6d09a93 |
kernel/power/snapshot.c: use linux/set_memory.h
This header always exists, so doesn't require an ifdef around its inclusion. When CONFIG_ARCH_HAS_SET_MEMORY=y it includes the asm header, otherwise it provides empty versions of the set_memory_xx() routines. Link: http://lkml.kernel.org/r/1498717781-29151-2-git-send-email-mpe@ellerman.id.au Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Laura Abbott <labbott@redhat.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Marcin Nowakowski
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c0d80ddab8 |
kernel/extable.c: mark core_kernel_text notrace
core_kernel_text is used by MIPS in its function graph trace processing, so having this method traced leads to an infinite set of recursive calls such as: Call Trace: ftrace_return_to_handler+0x50/0x128 core_kernel_text+0x10/0x1b8 prepare_ftrace_return+0x6c/0x114 ftrace_graph_caller+0x20/0x44 return_to_handler+0x10/0x30 return_to_handler+0x0/0x30 return_to_handler+0x0/0x30 ftrace_ops_no_ops+0x114/0x1bc core_kernel_text+0x10/0x1b8 core_kernel_text+0x10/0x1b8 core_kernel_text+0x10/0x1b8 ftrace_ops_no_ops+0x114/0x1bc core_kernel_text+0x10/0x1b8 prepare_ftrace_return+0x6c/0x114 ftrace_graph_caller+0x20/0x44 (...) Mark the function notrace to avoid it being traced. Link: http://lkml.kernel.org/r/1498028607-6765-1-git-send-email-marcin.nowakowski@imgtec.com Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Meyer <thomas@m3y3r.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Daniel Lezcano
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c80081b920 |
genirq: Allow to pass the IRQF_TIMER flag with percpu irq request
The irq timings infrastructure tracks when interrupts occur in order to statistically predict te next interrupt event. There is no point to track timer interrupts and try to predict them because the next expiration time is already known. This can be avoided via the IRQF_TIMER flag which is passed by timer drivers in request_irq(). It marks the interrupt as timer based which alloes to ignore these interrupts in the timings code. Per CPU interrupts which are requested via request_percpu_+irq() have no flag argument, so marking per cpu timer interrupts is not possible and they get tracked pointlessly. Add __request_percpu_irq() as a variant of request_percpu_irq() with a flags argument and make request_percpu_irq() an inline wrapper passing flags = 0. The flag parameter is restricted to IRQF_TIMER as all other IRQF_ flags make no sense for per cpu interrupts. The next step is to convert all existing users of request_percpu_irq() and then remove the wrapper and the underscores. [ tglx: Massaged changelog ] Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: peterz@infradead.org Cc: nicolas.pitre@linaro.org Cc: vincent.guittot@linaro.org Cc: rafael@kernel.org Link: http://lkml.kernel.org/r/1499344144-3964-1-git-send-email-daniel.lezcano@linaro.org |
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Linus Torvalds
|
9ced560b82 |
Merge branch 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup changes from Tejun Heo: - Waiman made the debug controller work and a lot more useful on cgroup2 - There were a couple issues with cgroup subtree delegation. The documentation on delegating to a non-root user was missing some part and cgroup namespace support wasn't factoring in delegation at all. The documentation is updated and the now there is a mount option to make cgroup namespace fit for delegation * 'for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: implement "nsdelegate" mount option cgroup: restructure cgroup_procs_write_permission() cgroup: "cgroup.subtree_control" should be writeable by delegatee cgroup: fix lockdep warning in debug controller cgroup: refactor cgroup_masks_read() in the debug controller cgroup: make debug an implicit controller on cgroup2 cgroup: Make debug cgroup support v2 and thread mode cgroup: Make Kconfig prompt of debug cgroup more accurate cgroup: Move debug cgroup to its own file cgroup: Keep accurate count of tasks in each css_set |
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Linus Torvalds
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7114f51fcb |
Merge branch 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull memdup_user() conversions from Al Viro: "A fairly self-contained series - hunting down open-coded memdup_user() and memdup_user_nul() instances" * 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: bpf: don't open-code memdup_user() kimage_file_prepare_segments(): don't open-code memdup_user() ethtool: don't open-code memdup_user() do_ip_setsockopt(): don't open-code memdup_user() do_ipv6_setsockopt(): don't open-code memdup_user() irda: don't open-code memdup_user() xfrm_user_policy(): don't open-code memdup_user() ima_write_policy(): don't open-code memdup_user_nul() sel_write_validatetrans(): don't open-code memdup_user_nul() |
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Linus Torvalds
|
ea3b25e132 |
Merge branch 'timers-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull timer-related user access updates from Al Viro: "Continuation of timers-related stuff (there had been more, but my parts of that series are already merged via timers/core). This is more of y2038 work by Deepa Dinamani, partially disrupted by the unification of native and compat timers-related syscalls" * 'timers-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: posix_clocks: Use get_itimerspec64() and put_itimerspec64() timerfd: Use get_itimerspec64() and put_itimerspec64() nanosleep: Use get_timespec64() and put_timespec64() posix-timers: Use get_timespec64() and put_timespec64() posix-stubs: Conditionally include COMPAT_SYS_NI defines time: introduce {get,put}_itimerspec64 time: add get_timespec64 and put_timespec64 |
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Linus Torvalds
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4be95131bf |
Merge branch 'work.sys_wait' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull wait syscall updates from Al Viro: "Consolidating sys_wait* and compat counterparts. Gets rid of set_fs()/double-copy mess, simplifies the whole thing (lifting the copyouts to the syscalls means less headache in the part that does actual work - fewer failure exits, to start with), gets rid of the overhead of field-by-field __put_user()" * 'work.sys_wait' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: osf_wait4: switch to kernel_wait4() waitid(): switch copyout of siginfo to unsafe_put_user() wait_task_zombie: consolidate info logics kill wait_noreap_copyout() lift getrusage() from wait_noreap_copyout() waitid(2): leave copyout of siginfo to syscall itself kernel_wait4()/kernel_waitid(): delay copying status to userland wait4(2)/waitid(2): separate copying rusage to userland move compat wait4 and waitid next to native variants |
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Linus Torvalds
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5518b69b76 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "Reasonably busy this cycle, but perhaps not as busy as in the 4.12 merge window: 1) Several optimizations for UDP processing under high load from Paolo Abeni. 2) Support pacing internally in TCP when using the sch_fq packet scheduler for this is not practical. From Eric Dumazet. 3) Support mutliple filter chains per qdisc, from Jiri Pirko. 4) Move to 1ms TCP timestamp clock, from Eric Dumazet. 5) Add batch dequeueing to vhost_net, from Jason Wang. 6) Flesh out more completely SCTP checksum offload support, from Davide Caratti. 7) More plumbing of extended netlink ACKs, from David Ahern, Pablo Neira Ayuso, and Matthias Schiffer. 8) Add devlink support to nfp driver, from Simon Horman. 9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa Prabhu. 10) Add stack depth tracking to BPF verifier and use this information in the various eBPF JITs. From Alexei Starovoitov. 11) Support XDP on qed device VFs, from Yuval Mintz. 12) Introduce BPF PROG ID for better introspection of installed BPF programs. From Martin KaFai Lau. 13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann. 14) For loads, allow narrower accesses in bpf verifier checking, from Yonghong Song. 15) Support MIPS in the BPF selftests and samples infrastructure, the MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David Daney. 16) Support kernel based TLS, from Dave Watson and others. 17) Remove completely DST garbage collection, from Wei Wang. 18) Allow installing TCP MD5 rules using prefixes, from Ivan Delalande. 19) Add XDP support to Intel i40e driver, from Björn Töpel 20) Add support for TC flower offload in nfp driver, from Simon Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub Kicinski, and Bert van Leeuwen. 21) IPSEC offloading support in mlx5, from Ilan Tayari. 22) Add HW PTP support to macb driver, from Rafal Ozieblo. 23) Networking refcount_t conversions, From Elena Reshetova. 24) Add sock_ops support to BPF, from Lawrence Brako. This is useful for tuning the TCP sockopt settings of a group of applications, currently via CGROUPs" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits) net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap cxgb4: Support for get_ts_info ethtool method cxgb4: Add PTP Hardware Clock (PHC) support cxgb4: time stamping interface for PTP nfp: default to chained metadata prepend format nfp: remove legacy MAC address lookup nfp: improve order of interfaces in breakout mode net: macb: remove extraneous return when MACB_EXT_DESC is defined bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case bpf: fix return in load_bpf_file mpls: fix rtm policy in mpls_getroute net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t net, ax25: convert ax25_route.refcount from atomic_t to refcount_t net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t ... |
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Linus Torvalds
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e24dd9ee53 |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security layer updates from James Morris: - a major update for AppArmor. From JJ: * several bug fixes and cleanups * the patch to add symlink support to securityfs that was floated on the list earlier and the apparmorfs changes that make use of securityfs symlinks * it introduces the domain labeling base code that Ubuntu has been carrying for several years, with several cleanups applied. And it converts the current mediation over to using the domain labeling base, which brings domain stacking support with it. This finally will bring the base upstream code in line with Ubuntu and provide a base to upstream the new feature work that Ubuntu carries. * This does _not_ contain any of the newer apparmor mediation features/controls (mount, signals, network, keys, ...) that Ubuntu is currently carrying, all of which will be RFC'd on top of this. - Notable also is the Infiniband work in SELinux, and the new file:map permission. From Paul: "While we're down to 21 patches for v4.13 (it was 31 for v4.12), the diffstat jumps up tremendously with over 2k of line changes. Almost all of these changes are the SELinux/IB work done by Daniel Jurgens; some other noteworthy changes include a NFS v4.2 labeling fix, a new file:map permission, and reporting of policy capabilities on policy load" There's also now genfscon labeling support for tracefs, which was lost in v4.1 with the separation from debugfs. - Smack incorporates a safer socket check in file_receive, and adds a cap_capable call in privilege check. - TPM as usual has a bunch of fixes and enhancements. - Multiple calls to security_add_hooks() can now be made for the same LSM, to allow LSMs to have hook declarations across multiple files. - IMA now supports different "ima_appraise=" modes (eg. log, fix) from the boot command line. * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (126 commits) apparmor: put back designators in struct initialisers seccomp: Switch from atomic_t to recount_t seccomp: Adjust selftests to avoid double-join seccomp: Clean up core dump logic IMA: update IMA policy documentation to include pcr= option ima: Log the same audit cause whenever a file has no signature ima: Simplify policy_func_show. integrity: Small code improvements ima: fix get_binary_runtime_size() ima: use ima_parse_buf() to parse template data ima: use ima_parse_buf() to parse measurements headers ima: introduce ima_parse_buf() ima: Add cgroups2 to the defaults list ima: use memdup_user_nul ima: fix up #endif comments IMA: Correct Kconfig dependencies for hash selection ima: define is_ima_appraise_enabled() ima: define Kconfig IMA_APPRAISE_BOOTPARAM option ima: define a set of appraisal rules requiring file signatures ima: extend the "ima_policy" boot command line to support multiple policies ... |
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Linus Torvalds
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7391786a64 |
Merge branch 'stable-4.13' of git://git.infradead.org/users/pcmoore/audit
Pull audit updates from Paul Moore: "Things are relatively quiet on the audit front for v4.13, just five patches for a total diffstat of 102 lines. There are two patches from Richard to consistently record the POSIX capabilities and add the ambient capability information as well. I also chipped in two patches to fix a race condition with the auditd tracking code and ensure we don't skip sending any records to the audit multicast group. Finally a single style fix that I accepted because I must have been in a good mood that day. Everything passes our test suite, and should be relatively harmless, please merge for v4.13" * 'stable-4.13' of git://git.infradead.org/users/pcmoore/audit: audit: make sure we never skip the multicast broadcast audit: fix a race condition with the auditd tracking code audit: style fix audit: add ambient capabilities to CAPSET and BPRM_FCAPS records audit: unswing cap_* fields in PATH records |
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Linus Torvalds
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eed1fc8779 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek: - Store printk() messages into the main log buffer directly even in NMI when the lock is available. It is the best effort to print even large chunk of text. It is handy, for example, when all ftrace messages are printed during the system panic in NMI. - Add missing annotations to calm down compiler warnings * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: printk: add __printf attributes to internal functions printk: Use the main logbuf in NMI when logbuf_lock is available |
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Steven Rostedt (VMware)
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69d71879d2 |
ftrace: Test for NULL iter->tr in regex for stack_trace_filter changes
As writing into stack_trace_filter, the iter-tr is not set and is NULL.
Check if it is NULL before dereferencing it in ftrace_regex_release().
Fixes:
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Steven Rostedt (VMware)
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4dce17b26b |
Merge commit '0f17976568b3f72e676450af0c0db6f8752253d6' into trace/ftrace/core
Need to get the changes from
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Kirill Tkhai
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a0c4acd2c2 |
locking/rwsem-spinlock: Fix EINTR branch in __down_write_common()
If a writer could been woken up, the above branch
if (sem->count == 0)
break;
would have moved us to taking the sem. So, it's
not the time to wake a writer now, and only readers
are allowed now. Thus, 0 must be passed to __rwsem_do_wake().
Next, __rwsem_do_wake() wakes readers unconditionally.
But we mustn't do that if the sem is owned by writer
in the moment. Otherwise, writer and reader own the sem
the same time, which leads to memory corruption in
callers.
rwsem-xadd.c does not need that, as:
1) the similar check is made lockless there,
2) in __rwsem_mark_wake::try_reader_grant we test,
that sem is not owned by writer.
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <stable@vger.kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Niklas Cassel <niklas.cassel@axis.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes:
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Linus Torvalds
|
408c9861c6 |
Power management updates for v4.13-rc1
- Rework suspend-to-idle to allow it to take wakeup events signaled by the EC into account on ACPI-based platforms in order to properly support power button wakeup from suspend-to-idle on recent Dell laptops (Rafael Wysocki). That includes the core suspend-to-idle code rework, support for the Low Power S0 _DSM interface, and support for the ACPI INT0002 Virtual GPIO device from Hans de Goede (required for USB keyboard wakeup from suspend-to-idle to work on some machines). - Stop trying to export the current CPU frequency via /proc/cpuinfo on x86 as that is inaccurate and confusing (Len Brown). - Rework the way in which the current CPU frequency is exported by the kernel (over the cpufreq sysfs interface) on x86 systems with the APERF and MPERF registers by always using values read from these registers, when available, to compute the current frequency regardless of which cpufreq driver is in use (Len Brown). - Rework the PCI/ACPI device wakeup infrastructure to remove the questionable and artificial distinction between "devices that can wake up the system from sleep states" and "devices that can generate wakeup signals in the working state" from it, which allows the code to be simplified quite a bit (Rafael Wysocki). - Fix the wakeup IRQ framework by making it use SRCU instead of RCU which doesn't allow sleeping in the read-side critical sections, but which in turn is expected to be allowed by the IRQ bus locking infrastructure (Thomas Gleixner). - Modify some computations in the intel_pstate driver to avoid rounding errors resulting from them (Srinivas Pandruvada). - Reduce the overhead of the intel_pstate driver in the HWP (hardware-managed P-states) mode and when the "performance" P-state selection algorithm is in use by making it avoid registering scheduler callbacks in those cases (Len Brown). - Rework the energy_performance_preference sysfs knob in intel_pstate by changing the values that correspond to different symbolic hint names used by it (Len Brown). - Make it possible to use more than one cpuidle driver at the same time on ARM (Daniel Lezcano). - Make it possible to prevent the cpuidle menu governor from using the 0 state by disabling it via sysfs (Nicholas Piggin). - Add support for FFH (Fixed Functional Hardware) MWAIT in ACPI C1 on AMD systems (Yazen Ghannam). - Make the CPPC cpufreq driver take the lowest nonlinear performance information into account (Prashanth Prakash). - Add support for hi3660 to the cpufreq-dt driver, fix the imx6q driver and clean up the sfi, exynos5440 and intel_pstate drivers (Colin Ian King, Krzysztof Kozlowski, Octavian Purdila, Rafael Wysocki, Tao Wang). - Fix a few minor issues in the generic power domains (genpd) framework and clean it up somewhat (Krzysztof Kozlowski, Mikko Perttunen, Viresh Kumar). - Fix a couple of minor issues in the operating performance points (OPP) framework and clean it up somewhat (Viresh Kumar). - Fix a CONFIG dependency in the hibernation core and clean it up slightly (Balbir Singh, Arvind Yadav, BaoJun Luo). - Add rk3228 support to the rockchip-io adaptive voltage scaling (AVS) driver (David Wu). - Fix an incorrect bit shift operation in the RAPL power capping driver (Adam Lessnau). - Add support for the EPP field in the HWP (hardware managed P-states) control register, HWP.EPP, to the x86_energy_perf_policy tool and update msr-index.h with HWP.EPP values (Len Brown). - Fix some minor issues in the turbostat tool (Len Brown). - Add support for AMD family 0x17 CPUs to the cpupower tool and fix a minor issue in it (Sherry Hurwitz). - Assorted cleanups, mostly related to the constification of some data structures (Arvind Yadav, Joe Perches, Kees Cook, Krzysztof Kozlowski). -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJZWrICAAoJEILEb/54YlRxZYMQAIRhfbyDxKq+ByvSilUS8kTA AItwJ8FFzykhiwN75Cqabg4rAGyWma7IRs1vzU7zeC1aEQIn+bTQtvk+utZNI+g2 ANFlDha20q/sXsP/CDMMTIAdW9tSOC0TOvFI9s2V2Y8dJZhoekO4ctx34FAfUS5d Ao6rwSAWCMsCXcGaTAlqTA+TEJmBG7u6Iq6hq6ngltoFwOv3mWWBVn52VVaJ7SMp 9/IPbbLGMFAedrgEBRGCR+MME1xZZpvcZIJaTt1Mgn7Cx3cJaysIUAvqY/SsvFGq 5FcUTcF2qpK3+AGawiAxZIjvOBsGRtIwqKinNIzYWs/NjiIdzmgVAmTeuPtTqp+5 HFehUdtkFcnuDnLqSNzAaZUa7tw84cJkwnbVMnesx0MkG6rZ1SeL22E2Sabpcdsh 3Yo1ThzJSxi59DhiiE92EQnNCEjmCldRy+8q5Ag035muxl6EJYvuNBMnZv/BMCUn ltSNOrmps1DlN+Col8ORIeNzQ1YjYzWMqKAYzSbyccm4ug/iSHx0/DuESmQ4GTlF YCwkmqyWiHrBwpl51jc+4a7SGlMmKRqU+MJes0CjagaaqoUAb8qeBOpzEJ0yNwjZ wtI41l6blE6kbMD3yqGdCfiB2S7GlPVoxa15eX1wRyLH3fLjwwrzJirEaiBS86tI 1PzHZEOmBlh3DYC6DBKA =Wsph -----END PGP SIGNATURE----- Merge tag 'pm-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "The big ticket items here are the rework of suspend-to-idle in order to add proper support for power button wakeup from it on recent Dell laptops and the rework of interfaces exporting the current CPU frequency on x86. In addition to that, support for a few new pieces of hardware is added, the PCI/ACPI device wakeup infrastructure is simplified significantly and the wakeup IRQ framework is fixed to unbreak the IRQ bus locking infrastructure. Also, there are some functional improvements for intel_pstate, tools updates and small fixes and cleanups all over. Specifics: - Rework suspend-to-idle to allow it to take wakeup events signaled by the EC into account on ACPI-based platforms in order to properly support power button wakeup from suspend-to-idle on recent Dell laptops (Rafael Wysocki). That includes the core suspend-to-idle code rework, support for the Low Power S0 _DSM interface, and support for the ACPI INT0002 Virtual GPIO device from Hans de Goede (required for USB keyboard wakeup from suspend-to-idle to work on some machines). - Stop trying to export the current CPU frequency via /proc/cpuinfo on x86 as that is inaccurate and confusing (Len Brown). - Rework the way in which the current CPU frequency is exported by the kernel (over the cpufreq sysfs interface) on x86 systems with the APERF and MPERF registers by always using values read from these registers, when available, to compute the current frequency regardless of which cpufreq driver is in use (Len Brown). - Rework the PCI/ACPI device wakeup infrastructure to remove the questionable and artificial distinction between "devices that can wake up the system from sleep states" and "devices that can generate wakeup signals in the working state" from it, which allows the code to be simplified quite a bit (Rafael Wysocki). - Fix the wakeup IRQ framework by making it use SRCU instead of RCU which doesn't allow sleeping in the read-side critical sections, but which in turn is expected to be allowed by the IRQ bus locking infrastructure (Thomas Gleixner). - Modify some computations in the intel_pstate driver to avoid rounding errors resulting from them (Srinivas Pandruvada). - Reduce the overhead of the intel_pstate driver in the HWP (hardware-managed P-states) mode and when the "performance" P-state selection algorithm is in use by making it avoid registering scheduler callbacks in those cases (Len Brown). - Rework the energy_performance_preference sysfs knob in intel_pstate by changing the values that correspond to different symbolic hint names used by it (Len Brown). - Make it possible to use more than one cpuidle driver at the same time on ARM (Daniel Lezcano). - Make it possible to prevent the cpuidle menu governor from using the 0 state by disabling it via sysfs (Nicholas Piggin). - Add support for FFH (Fixed Functional Hardware) MWAIT in ACPI C1 on AMD systems (Yazen Ghannam). - Make the CPPC cpufreq driver take the lowest nonlinear performance information into account (Prashanth Prakash). - Add support for hi3660 to the cpufreq-dt driver, fix the imx6q driver and clean up the sfi, exynos5440 and intel_pstate drivers (Colin Ian King, Krzysztof Kozlowski, Octavian Purdila, Rafael Wysocki, Tao Wang). - Fix a few minor issues in the generic power domains (genpd) framework and clean it up somewhat (Krzysztof Kozlowski, Mikko Perttunen, Viresh Kumar). - Fix a couple of minor issues in the operating performance points (OPP) framework and clean it up somewhat (Viresh Kumar). - Fix a CONFIG dependency in the hibernation core and clean it up slightly (Balbir Singh, Arvind Yadav, BaoJun Luo). - Add rk3228 support to the rockchip-io adaptive voltage scaling (AVS) driver (David Wu). - Fix an incorrect bit shift operation in the RAPL power capping driver (Adam Lessnau). - Add support for the EPP field in the HWP (hardware managed P-states) control register, HWP.EPP, to the x86_energy_perf_policy tool and update msr-index.h with HWP.EPP values (Len Brown). - Fix some minor issues in the turbostat tool (Len Brown). - Add support for AMD family 0x17 CPUs to the cpupower tool and fix a minor issue in it (Sherry Hurwitz). - Assorted cleanups, mostly related to the constification of some data structures (Arvind Yadav, Joe Perches, Kees Cook, Krzysztof Kozlowski)" * tag 'pm-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (69 commits) cpufreq: Update scaling_cur_freq documentation cpufreq: intel_pstate: Clean up after performance governor changes PM: hibernate: constify attribute_group structures. cpuidle: menu: allow state 0 to be disabled intel_idle: Use more common logging style PM / Domains: Fix missing default_power_down_ok comment PM / Domains: Fix unsafe iteration over modified list of domains PM / Domains: Fix unsafe iteration over modified list of domain providers PM / Domains: Fix unsafe iteration over modified list of device links PM / Domains: Handle safely genpd_syscore_switch() call on non-genpd device PM / Domains: Call driver's noirq callbacks PM / core: Drop run_wake flag from struct dev_pm_info PCI / PM: Simplify device wakeup settings code PCI / PM: Drop pme_interrupt flag from struct pci_dev ACPI / PM: Consolidate device wakeup settings code ACPI / PM: Drop run_wake from struct acpi_device_wakeup_flags PM / QoS: constify *_attribute_group. PM / AVS: rockchip-io: add io selectors and supplies for rk3228 powercap/RAPL: prevent overridding bits outside of the mask PM / sysfs: Constify attribute groups ... |
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Thomas Gleixner
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2343877fbd |
genirq/timings: Move free timings out of spinlocked region
No point to do memory management from a interrupt disabled spin locked region. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Julia Cartwright <julia@ni.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Brian Norris <briannorris@chromium.org> Cc: Doug Anderson <dianders@chromium.org> Cc: linux-rockchip@lists.infradead.org Cc: John Keeping <john@metanate.com> Cc: linux-gpio@vger.kernel.org Link: http://lkml.kernel.org/r/20170629214344.196130646@linutronix.de |
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Thomas Gleixner
|
46e48e2573 |
genirq: Move irq resource handling out of spinlocked region
Aside of being conceptually wrong, there is also an actual (hard to trigger and mostly theoretical) problem. CPU0 CPU1 free_irq(X) interrupt X spin_lock(desc->lock) wake irq thread() spin_unlock(desc->lock) spin_lock(desc->lock) remove action() shutdown_irq() release_resources() thread_handler() spin_unlock(desc->lock) access released resources. synchronize_irq() Move the release resources invocation after synchronize_irq() so it's guaranteed that the threaded handler has finished. Move the resource request call out of the desc->lock held region as well, so the invocation context is the same for both request and release. This solves the problems with those functions on RT as well. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Julia Cartwright <julia@ni.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Brian Norris <briannorris@chromium.org> Cc: Doug Anderson <dianders@chromium.org> Cc: linux-rockchip@lists.infradead.org Cc: John Keeping <john@metanate.com> Cc: linux-gpio@vger.kernel.org Link: http://lkml.kernel.org/r/20170629214344.117028181@linutronix.de |
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Thomas Gleixner
|
9114014cf4 |
genirq: Add mutex to irq desc to serialize request/free_irq()
The irq_request/release_resources() callbacks ar currently invoked under desc->lock with interrupts disabled. This is a source of problems on RT and conceptually not required. Add a seperate mutex to struct irq_desc which allows to serialize request/free_irq(), which can be used to move the resource functions out of the desc->lock held region. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Julia Cartwright <julia@ni.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Brian Norris <briannorris@chromium.org> Cc: Doug Anderson <dianders@chromium.org> Cc: linux-rockchip@lists.infradead.org Cc: John Keeping <john@metanate.com> Cc: linux-gpio@vger.kernel.org Link: http://lkml.kernel.org/r/20170629214344.039220922@linutronix.de |
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Thomas Gleixner
|
3a90795e1e |
genirq: Move bus locking into __setup_irq()
There is no point in having the irq_bus_lock() protection around all callers to __setup_irq(). Move it into __setup_irq(). This is also a preparatory patch for addressing the issues with the irq resource callbacks. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Julia Cartwright <julia@ni.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Brian Norris <briannorris@chromium.org> Cc: Doug Anderson <dianders@chromium.org> Cc: linux-rockchip@lists.infradead.org Cc: John Keeping <john@metanate.com> Cc: linux-gpio@vger.kernel.org Link: http://lkml.kernel.org/r/20170629214343.960949031@linutronix.de |
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Geert Uytterhoeven
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2372a519f6 |
genirq: Force inlining of __irq_startup_managed to prevent build failure
If CONFIG_SMP=n, and gcc (e.g. 4.1.2) decides not to inline
__irq_startup_managed(), the build fails with:
kernel/built-in.o: In function `irq_startup':
(.text+0x38ed8): undefined reference to `irq_set_affinity_locked'
Fix this by forcing inlining of __irq_startup_managed().
Fixes:
|
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Sebastian Ott
|
e5682b4eec |
genirq/debugfs: Fix build for !CONFIG_IRQ_DOMAIN
Fix this build error: kernel/irq/internals.h:440:20: error: inlining failed in call to always_inline 'irq_domain_debugfs_init': function body not available kernel/irq/debugfs.c:202:2: note: called from here irq_domain_debugfs_init(root_dir); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/alpine.LFD.2.20.1707041124000.1712@schleppi |
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Linus Torvalds
|
650fc870a2 |
There has been a fair amount of activity in the docs tree this time
around. Highlights include: - Conversion of a bunch of security documentation into RST - The conversion of the remaining DocBook templates by The Amazing Mauro Machine. We can now drop the entire DocBook build chain. - The usual collection of fixes and minor updates. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJZWkGAAAoJEI3ONVYwIuV6rf0P/0B3JTiVPKS/WUx53+jzbAi4 1BN7dmmuMxE1bWpgdEq+ac4aKxm07iAojuntuMj0qz/ZB1WARcmvEqqzI5i4wfq9 5MrLduLkyuWfr4MOPseKJ2VK83p8nkMOiO7jmnBsilu7fE4nF+5YY9j4cVaArfMy cCQvAGjQzvej2eiWMGUSLHn4QFKh00aD7cwKyBVsJ08b27C9xL0J2LQyCDZ4yDgf 37/MH3puEd3HX/4qAwLonIxT3xrIrrbDturqLU7OSKcWTtGZNrYyTFbwR3RQtqWd H8YZVg2Uyhzg9MYhkbQ2E5dEjUP4mkegcp6/JTINH++OOPpTbdTJgirTx7VTkSf1 +kL8t7+Ayxd0FH3+77GJ5RMj8LUK6rj5cZfU5nClFQKWXP9UL3IelQ3Nl+SpdM8v ZAbR2KjKgH9KS6+cbIhgFYlvY+JgPkOVruwbIAc7wXVM3ibk1sWoBOFEujcbueWh yDpQv3l1UX0CKr3jnevJoW26LtEbGFtC7gSKZ+3btyeSBpWFGlii42KNycEGwUW0 ezlwryDVHzyTUiKllNmkdK4v73mvPsZHEjgmme4afKAIiUilmcUF4XcqD86hISFT t+UJLA/zEU+0sJe26o2nK6GNJzmo4oCtVyxfhRe26Ojs1n80xlYgnZRfuIYdd31Z nwLBnwDCHAOyX91WXp9G =cVjZ -----END PGP SIGNATURE----- Merge tag 'docs-4.13' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "There has been a fair amount of activity in the docs tree this time around. Highlights include: - Conversion of a bunch of security documentation into RST - The conversion of the remaining DocBook templates by The Amazing Mauro Machine. We can now drop the entire DocBook build chain. - The usual collection of fixes and minor updates" * tag 'docs-4.13' of git://git.lwn.net/linux: (90 commits) scripts/kernel-doc: handle DECLARE_HASHTABLE Documentation: atomic_ops.txt is core-api/atomic_ops.rst Docs: clean up some DocBook loose ends Make the main documentation title less Geocities Docs: Use kernel-figure in vidioc-g-selection.rst Docs: fix table problems in ras.rst Docs: Fix breakage with Sphinx 1.5 and upper Docs: Include the Latex "ifthen" package doc/kokr/howto: Only send regression fixes after -rc1 docs-rst: fix broken links to dynamic-debug-howto in kernel-parameters doc: Document suitability of IBM Verse for kernel development Doc: fix a markup error in coding-style.rst docs: driver-api: i2c: remove some outdated information Documentation: DMA API: fix a typo in a function name Docs: Insert missing space to separate link from text doc/ko_KR/memory-barriers: Update control-dependencies example Documentation, kbuild: fix typo "minimun" -> "minimum" docs: Fix some formatting issues in request-key.rst doc: ReSTify keys-trusted-encrypted.txt doc: ReSTify keys-request-key.txt ... |
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Linus Torvalds
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f4dd029ee0 |
Char/Misc patches for 4.13-rc1
Here is the "big" char/misc driver patchset for 4.13-rc1. Lots of stuff in here, a large thunderbolt update, w1 driver header reorg, the new mux driver subsystem, google firmware driver updates, and a raft of other smaller things. Full details in the shortlog. All of these have been in linux-next for a while with the only reported issue being a merge problem with this tree and the jc-docs tree in the w1 documentation area. The fix should be obvious for what to do when it happens, if not, we can send a follow-up patch for it afterward. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWVpXKA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynLrQCdG9SxRjAbOd6pT9Fr2NAzpUG84YsAoLw+I3iO EMi60UXWqAFJbtVMS9Aj =yrSq -----END PGP SIGNATURE----- Merge tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc updates from Greg KH: "Here is the "big" char/misc driver patchset for 4.13-rc1. Lots of stuff in here, a large thunderbolt update, w1 driver header reorg, the new mux driver subsystem, google firmware driver updates, and a raft of other smaller things. Full details in the shortlog. All of these have been in linux-next for a while with the only reported issue being a merge problem with this tree and the jc-docs tree in the w1 documentation area" * tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (147 commits) misc: apds990x: Use sysfs_match_string() helper mei: drop unreachable code in mei_start mei: validate the message header only in first fragment. DocBook: w1: Update W1 file locations and names in DocBook mux: adg792a: always require I2C support nvmem: rockchip-efuse: add support for rk322x-efuse nvmem: core: add locking to nvmem_find_cell nvmem: core: Call put_device() in nvmem_unregister() nvmem: core: fix leaks on registration errors nvmem: correct Broadcom OTP controller driver writes w1: Add subsystem kernel public interface drivers/fsi: Add module license to core driver drivers/fsi: Use asynchronous slave mode drivers/fsi: Add hub master support drivers/fsi: Add SCOM FSI client device driver drivers/fsi/gpio: Add tracepoints for GPIO master drivers/fsi: Add GPIO based FSI master drivers/fsi: Document FSI master sysfs files in ABI drivers/fsi: Add error handling for slave drivers/fsi: Add tracepoints for low-level operations ... |
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Linus Torvalds
|
974668417b |
driver core patches for 4.13-rc1
Here is the big driver core update for 4.13-rc1. The large majority of this is a lot of cleanup of old fields in the driver core structures and their remaining usages in random drivers. All of those fixes have been reviewed by the various subsystem maintainers. There's also some small firmware updates in here, a new kobject uevent api interface that makes userspace interaction easier, and a few other minor things. All of these have been in linux-next for a long while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWVpX4A8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymobgCfd0d13IfpZoq1N41wc6z2Z0xD7cwAnRMeH1/p kEeISGpHPYP9f8PBh9FO =Hfqt -----END PGP SIGNATURE----- Merge tag 'driver-core-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the big driver core update for 4.13-rc1. The large majority of this is a lot of cleanup of old fields in the driver core structures and their remaining usages in random drivers. All of those fixes have been reviewed by the various subsystem maintainers. There's also some small firmware updates in here, a new kobject uevent api interface that makes userspace interaction easier, and a few other minor things. All of these have been in linux-next for a long while with no reported issues" * tag 'driver-core-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (56 commits) arm: mach-rpc: ecard: fix build error zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO() driver-core: remove struct bus_type.dev_attrs powerpc: vio_cmo: use dev_groups and not dev_attrs for bus_type powerpc: vio: use dev_groups and not dev_attrs for bus_type USB: usbip: convert to use DRIVER_ATTR_RW s390: drivers: convert to use DRIVER_ATTR_RO/WO platform: thinkpad_acpi: convert to use DRIVER_ATTR_RO/RW pcmcia: ds: convert to use DRIVER_ATTR_RO wireless: ipw2x00: convert to use DRIVER_ATTR_RW net: ehea: convert to use DRIVER_ATTR_RO net: caif: convert to use DRIVER_ATTR_RO TTY: hvc: convert to use DRIVER_ATTR_RW PCI: pci-driver: convert to use DRIVER_ATTR_WO IB: nes: convert to use DRIVER_ATTR_RW HID: hid-core: convert to use DRIVER_ATTR_RO and drv_groups arm: ecard: fix dev_groups patch typo tty: serdev: use dev_groups and not dev_attrs for bus_type sparc: vio: use dev_groups and not dev_attrs for bus_type hid: intel-ish-hid: use dev_groups and not dev_attrs for bus_type ... |
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Linus Torvalds
|
9a9594efe5 |
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP hotplug updates from Thomas Gleixner: "This update is primarily a cleanup of the CPU hotplug locking code. The hotplug locking mechanism is an open coded RWSEM, which allows recursive locking. The main problem with that is the recursive nature as it evades the full lockdep coverage and hides potential deadlocks. The rework replaces the open coded RWSEM with a percpu RWSEM and establishes full lockdep coverage that way. The bulk of the changes fix up recursive locking issues and address the now fully reported potential deadlocks all over the place. Some of these deadlocks have been observed in the RT tree, but on mainline the probability was low enough to hide them away." * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits) cpu/hotplug: Constify attribute_group structures powerpc: Only obtain cpu_hotplug_lock if called by rtasd ARM/hw_breakpoint: Fix possible recursive locking for arch_hw_breakpoint_init cpu/hotplug: Remove unused check_for_tasks() function perf/core: Don't release cred_guard_mutex if not taken cpuhotplug: Link lock stacks for hotplug callbacks acpi/processor: Prevent cpu hotplug deadlock sched: Provide is_percpu_thread() helper cpu/hotplug: Convert hotplug locking to percpu rwsem s390: Prevent hotplug rwsem recursion arm: Prevent hotplug rwsem recursion arm64: Prevent cpu hotplug rwsem recursion kprobes: Cure hotplug lock ordering issues jump_label: Reorder hotplug lock and jump_label_lock perf/tracing/cpuhotplug: Fix locking order ACPI/processor: Use cpu_hotplug_disable() instead of get_online_cpus() PCI: Replace the racy recursion prevention PCI: Use cpu_hotplug_disable() instead of get_online_cpus() perf/x86/intel: Drop get_online_cpus() in intel_snb_check_microcode() x86/perf: Drop EXPORT of perf_check_microcode ... |
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Linus Torvalds
|
03ffbcdd78 |
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner: "The irq department delivers: - Expand the generic infrastructure handling the irq migration on CPU hotplug and convert X86 over to it. (Thomas Gleixner) Aside of consolidating code this is a preparatory change for: - Finalizing the affinity management for multi-queue devices. The main change here is to shut down interrupts which are affine to a outgoing CPU and reenabling them when the CPU comes online again. That avoids moving interrupts pointlessly around and breaking and reestablishing affinities for no value. (Christoph Hellwig) Note: This contains also the BLOCK-MQ and NVME changes which depend on the rework of the irq core infrastructure. Jens acked them and agreed that they should go with the irq changes. - Consolidation of irq domain code (Marc Zyngier) - State tracking consolidation in the core code (Jeffy Chen) - Add debug infrastructure for hierarchical irq domains (Thomas Gleixner) - Infrastructure enhancement for managing generic interrupt chips via devmem (Bartosz Golaszewski) - Constification work all over the place (Tobias Klauser) - Two new interrupt controller drivers for MVEBU (Thomas Petazzoni) - The usual set of fixes, updates and enhancements all over the place" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (112 commits) irqchip/or1k-pic: Fix interrupt acknowledgement irqchip/irq-mvebu-gicp: Allocate enough memory for spi_bitmap irqchip/gic-v3: Fix out-of-bound access in gic_set_affinity nvme: Allocate queues for all possible CPUs blk-mq: Create hctx for each present CPU blk-mq: Include all present CPUs in the default queue mapping genirq: Avoid unnecessary low level irq function calls genirq: Set irq masked state when initializing irq_desc genirq/timings: Add infrastructure for estimating the next interrupt arrival time genirq/timings: Add infrastructure to track the interrupt timings genirq/debugfs: Remove pointless NULL pointer check irqchip/gic-v3-its: Don't assume GICv3 hardware supports 16bit INTID irqchip/gic-v3-its: Add ACPI NUMA node mapping irqchip/gic-v3-its-platform-msi: Make of_device_ids const irqchip/gic-v3-its: Make of_device_ids const irqchip/irq-mvebu-icu: Add new driver for Marvell ICU irqchip/irq-mvebu-gicp: Add new driver for Marvell GICP dt-bindings/interrupt-controller: Add DT binding for the Marvell ICU genirq/irqdomain: Remove auto-recursive hierarchy support irqchip/MSI: Use irq_domain_update_bus_token instead of an open coded access ... |
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Linus Torvalds
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1b044f1cfc |
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner: "A rather large update for timers/timekeeping: - compat syscall consolidation (Al Viro) - Posix timer consolidation (Christoph Helwig / Thomas Gleixner) - Cleanup of the device tree based initialization for clockevents and clocksources (Daniel Lezcano) - Consolidation of the FTTMR010 clocksource/event driver (Linus Walleij) - The usual set of small fixes and updates all over the place" * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (93 commits) timers: Make the cpu base lock raw clocksource/drivers/mips-gic-timer: Fix an error code in 'gic_clocksource_of_init()' clocksource/drivers/fsl_ftm_timer: Unmap region obtained by of_iomap clocksource/drivers/tcb_clksrc: Make IO endian agnostic clocksource/drivers/sun4i: Switch to the timer-of common init clocksource/drivers/timer-of: Fix invalid iomap check Revert "ktime: Simplify ktime_compare implementation" clocksource/drivers: Fix uninitialized variable use in timer_of_init kselftests: timers: Add test for frequency step kselftests: timers: Fix inconsistency-check to not ignore first timestamp time: Add warning about imminent deprecation of CONFIG_GENERIC_TIME_VSYSCALL_OLD time: Clean up CLOCK_MONOTONIC_RAW time handling posix-cpu-timers: Make timespec to nsec conversion safe itimer: Make timeval to nsec conversion range limited timers: Fix parameter description of try_to_del_timer_sync() ktime: Simplify ktime_compare implementation clocksource/drivers/fttmr010: Factor out clock read code clocksource/drivers/fttmr010: Implement delay timer clocksource/drivers: Add timer-of common init routine clocksource/drivers/tcb_clksrc: Save timer context on suspend/resume ... |
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Linus Torvalds
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241e5e6f04 |
m68k updates for 4.13
- Nubus improvements and cleanups, - Defconfig updates, - Fix debugger syscall restart interactions, leading to the global removal of ptrace_signal_deliver(). -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJZWfHjAAoJEEgEtLw/Ve779c0QAKUjc6Gow7Z6RC5QdtjZs9QR LWREsHc/GRP2J477yUYSGonKvI10O4HL6boruux3BVdNVMZBpIy/LB8dTCYDnzCI i8+bJ6eeG6q/xut2anV19v+RiblEFxP7dcZj5acoxrlmEhJEUFbZe8jFHD8LJoiZ A1er1sUGfsCF+nlMPeh0+QuomGOXSJZBEtAB/zjddU+JGpFDnr0qQfAR2rAno44S i2GbfIAtPXrvSupfDIjEJTL0MuY+3q3HlhlrPvlOLwNJL0CnmdQDsMFupg5F9A2P ycIKRJ862Kvg/6GDxgbtap6gUj13FmxwXs1yOu5R2Laevhr5gAR0v1vLB4iynvRt Ib3CTUfKSord11dbLH89xB9Z7hPMSf5wh+GA1KGYCzkP16GWO72O89qmu9QkI03H naVDpSIvje0zgidrtQ5LIPZi1BRrDKte5EcSJyQoNcrG0H7L5Rq0FHSCa22kObSt ZBCNReCWImZ2RT7FTx3jyu/8xF20g39C+oPdJrR0NwqcfsNO0aRlmzPxiqGR9XZg XtpCbL23wdR0aKiriDMDip52GGhQ4vdCzdCn+KCcI1DfaCGk+7/08YgBRThHmU8Y pa7yl9sjxvTr+U/mz8S0ZwFxvB0zoEIkx0efiVOJYpqCrrpz7iuPLOqEkHvIFQ9G rY49u5m8Lo+Y2QEQ1jQU =kAE1 -----END PGP SIGNATURE----- Merge tag 'm68k-for-v4.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven: - NuBus improvements and cleanups - defconfig updates - Fix debugger syscall restart interactions, leading to the global removal of ptrace_signal_deliver() * tag 'm68k-for-v4.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Remove ptrace_signal_deliver m68k/defconfig: Update defconfigs for v4.12-rc1 nubus: Fix pointer validation nubus: Remove slot zero probe |
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Linus Torvalds
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59b60185b4 |
Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull nohz updates from Ingo Molnar: "The main changes in this cycle relate to fixing another bad (but sporadic and hard to detect) interaction between the dynticks scheduler tick and hrtimers, plus related improvements to better detection and handling of similar problems - by Frédéric Weisbecker" * 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: nohz: Fix spurious warning when hrtimer and clockevent get out of sync nohz: Fix buggy tick delay on IRQ storms nohz: Reset next_tick cache even when the timer has no regs nohz: Fix collision between tick and other hrtimers, again nohz: Add hrtimer sanity check |