1. 13 Apr, 2015 9 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 60f898ee
      Linus Torvalds authored
      Pull x86 asm changes from Ingo Molnar:
       "There were lots of changes in this development cycle:
      
         - over 100 separate cleanups, restructuring changes, speedups and
           fixes in the x86 system call, irq, trap and other entry code, part
           of a heroic effort to deobfuscate a decade old spaghetti asm code
           and its C code dependencies (Denys Vlasenko, Andy Lutomirski)
      
         - alternatives code fixes and enhancements (Borislav Petkov)
      
         - simplifications and cleanups to the compat code (Brian Gerst)
      
         - signal handling fixes and new x86 testcases (Andy Lutomirski)
      
         - various other fixes and cleanups
      
        By their nature many of these changes are risky - we tried to test
        them well on many different x86 systems (there are no known
        regressions), and they are split up finely to help bisection - but
        there's still a fair bit of residual risk left so caveat emptor"
      
      * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (148 commits)
        perf/x86/64: Report regs_user->ax too in get_regs_user()
        perf/x86/64: Simplify regs_user->abi setting code in get_regs_user()
        perf/x86/64: Do report user_regs->cx while we are in syscall, in get_regs_user()
        perf/x86/64: Do not guess user_regs->cs, ss, sp in get_regs_user()
        x86/asm/entry/32: Tidy up JNZ instructions after TESTs
        x86/asm/entry/64: Reduce padding in execve stubs
        x86/asm/entry/64: Remove GET_THREAD_INFO() in ret_from_fork
        x86/asm/entry/64: Simplify jumps in ret_from_fork
        x86/asm/entry/64: Remove a redundant jump
        x86/asm/entry/64: Optimize [v]fork/clone stubs
        x86/asm/entry: Zero EXTRA_REGS for stub32_execve() too
        x86/asm/entry/64: Move stub_x32_execvecloser() to stub_execveat()
        x86/asm/entry/64: Use common code for rt_sigreturn() epilogue
        x86/asm/entry/64: Add forgotten CFI annotation
        x86/asm/entry/irq: Simplify interrupt dispatch table (IDT) layout
        x86/asm/entry/64: Move opportunistic sysret code to syscall code path
        x86, selftests: Add sigreturn selftest
        x86/alternatives: Guard NOPs optimization
        x86/asm/entry: Clear EXTRA_REGS for all executable formats
        x86/signal: Remove pax argument from restore_sigcontext
        ...
      60f898ee
    • Linus Torvalds's avatar
      Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 977e1ba5
      Linus Torvalds authored
      Pull x86 apic changes from Ingo Molnar:
       "Changes:
      
         - SGI UV APIC driver updates
      
         - dead code removal"
      
      * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/apic/uv: Update the UV APIC HUB check
        x86/apic/uv: Update the UV APIC driver check
        x86/apic/uv: Update the APIC UV OEM check
        x86/apic: Remove verify_local_APIC()
      977e1ba5
    • Linus Torvalds's avatar
      Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7fd56474
      Linus Torvalds authored
      Pull timer updates from Ingo Molnar:
       "The main changes in this cycle were:
      
         - clockevents state machine cleanups and enhancements (Viresh Kumar)
      
         - clockevents broadcast notifier horror to state machine conversion
           and related cleanups (Thomas Gleixner, Rafael J Wysocki)
      
         - clocksource and timekeeping core updates (John Stultz)
      
         - clocksource driver updates and fixes (Ben Dooks, Dmitry Osipenko,
           Hans de Goede, Laurent Pinchart, Maxime Ripard, Xunlei Pang)
      
         - y2038 fixes (Xunlei Pang, John Stultz)
      
         - NMI-safe ktime_get_raw_fast() and general refactoring of the clock
           code, in preparation to perf's per event clock ID support (Peter
           Zijlstra)
      
         - generic sched/clock fixes, optimizations and cleanups (Daniel
           Thompson)
      
         - clockevents cpu_down() race fix (Preeti U Murthy)"
      
      * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (94 commits)
        timers/PM: Drop unnecessary braces from tick_freeze()
        timers/PM: Fix up tick_unfreeze()
        timekeeping: Get rid of stale comment
        clockevents: Cleanup dead cpu explicitely
        clockevents: Make tick handover explicit
        clockevents: Remove broadcast oneshot control leftovers
        sched/idle: Use explicit broadcast oneshot control function
        ARM: Tegra: Use explicit broadcast oneshot control function
        ARM: OMAP: Use explicit broadcast oneshot control function
        intel_idle: Use explicit broadcast oneshot control function
        ACPI/idle: Use explicit broadcast control function
        ACPI/PAD: Use explicit broadcast oneshot control function
        x86/amd/idle, clockevents: Use explicit broadcast oneshot control functions
        clockevents: Provide explicit broadcast oneshot control functions
        clockevents: Remove the broadcast control leftovers
        ARM: OMAP: Use explicit broadcast control function
        intel_idle: Use explicit broadcast control function
        cpuidle: Use explicit broadcast control function
        ACPI/processor: Use explicit broadcast control function
        ACPI/PAD: Use explicit broadcast control function
        ...
      7fd56474
    • Linus Torvalds's avatar
      Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 49d2953c
      Linus Torvalds authored
      Pull scheduler changes from Ingo Molnar:
       "Major changes:
      
         - Reworked CPU capacity code, for better SMP load balancing on
           systems with assymetric CPUs. (Vincent Guittot, Morten Rasmussen)
      
         - Reworked RT task SMP balancing to be push based instead of pull
           based, to reduce latencies on large CPU count systems. (Steven
           Rostedt)
      
         - SCHED_DEADLINE support updates and fixes. (Juri Lelli)
      
         - SCHED_DEADLINE task migration support during CPU hotplug. (Wanpeng Li)
      
         - x86 mwait-idle optimizations and fixes. (Mike Galbraith, Len Brown)
      
         - sched/numa improvements. (Rik van Riel)
      
         - various cleanups"
      
      * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
        sched/core: Drop debugging leftover trace_printk call
        sched/deadline: Support DL task migration during CPU hotplug
        sched/core: Check for available DL bandwidth in cpuset_cpu_inactive()
        sched/deadline: Always enqueue on previous rq when dl_task_timer() fires
        sched/core: Remove unused argument from init_[rt|dl]_rq()
        sched/deadline: Fix rt runtime corruption when dl fails its global constraints
        sched/deadline: Avoid a superfluous check
        sched: Improve load balancing in the presence of idle CPUs
        sched: Optimize freq invariant accounting
        sched: Move CFS tasks to CPUs with higher capacity
        sched: Add SD_PREFER_SIBLING for SMT level
        sched: Remove unused struct sched_group_capacity::capacity_orig
        sched: Replace capacity_factor by usage
        sched: Calculate CPU's usage statistic and put it into struct sg_lb_stats::group_usage
        sched: Add struct rq::cpu_capacity_orig
        sched: Make scale_rt invariant with frequency
        sched: Make sched entity usage tracking scale-invariant
        sched: Remove frequency scaling from cpu_capacity
        sched: Track group sched_entity usage contributions
        sched: Add sched_avg::utilization_avg_contrib
        ...
      49d2953c
    • Linus Torvalds's avatar
      Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · cc76ee75
      Linus Torvalds authored
      Pull core locking changes from Ingo Molnar:
       "Main changes:
      
         - jump label asm preparatory work for PowerPC (Anton Blanchard)
      
         - rwsem optimizations and cleanups (Davidlohr Bueso)
      
         - mutex optimizations and cleanups (Jason Low)
      
         - futex fix (Oleg Nesterov)
      
         - remove broken atomicity checks from {READ,WRITE}_ONCE() (Peter
           Zijlstra)"
      
      * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        powerpc, jump_label: Include linux/jump_label.h to get HAVE_JUMP_LABEL define
        jump_label: Allow jump labels to be used in assembly
        jump_label: Allow asm/jump_label.h to be included in assembly
        locking/mutex: Further simplify mutex_spin_on_owner()
        locking: Remove atomicy checks from {READ,WRITE}_ONCE
        locking/rtmutex: Rename argument in the rt_mutex_adjust_prio_chain() documentation as well
        locking/rwsem: Fix lock optimistic spinning when owner is not running
        locking: Remove ACCESS_ONCE() usage
        locking/rwsem: Check for active lock before bailing on spinning
        locking/rwsem: Avoid deceiving lock spinners
        locking/rwsem: Set lock ownership ASAP
        locking/rwsem: Document barrier need when waking tasks
        locking/futex: Check PF_KTHREAD rather than !p->mm to filter out kthreads
        locking/mutex: Refactor mutex_spin_on_owner()
        locking/mutex: In mutex_spin_on_owner(), return true when owner changes
      cc76ee75
    • Linus Torvalds's avatar
      Merge branch 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9c65e12a
      Linus Torvalds authored
      Pull EFI update from Ingo Molnar:
       "This tree includes various fixes, cleanups, a new efi=debug boot
        option and EFI boot stub memory allocation optimizations"
      
      * 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi/libstub: Retrieve FDT size when loaded from UEFI config table
        efi: Clean up the efi_call_phys_[prolog|epilog]() save/restore interaction
        efi: Disable interrupts around EFI calls, not in the epilog/prolog calls
        x86/efi: Add a "debug" option to the efi= cmdline
        firmware: dmi_scan: Use direct access to static vars
        firmware: dmi_scan: Use full dmi version for SMBIOS3
      9c65e12a
    • Linus Torvalds's avatar
      Merge tag 'md/4.0-rc7-fix' of git://neil.brown.name/md · 67dbb3a0
      Linus Torvalds authored
      Pull md fixes from Neil Brown:
       "Two regression fixes for md, one fairly recent and minor (diskstats
        has confusing data) and one older and more serious - RAID0 with
        non-power-of-2 chunksize corrupts data.
      
        I guess (almost) no-one uses non-power-of-2 chunks.
      
        Summary:
      
         - Revert recent change which broke IO accounting.
      
         - Fix bug with RAID0 arrays with non-power-of-2 chunk size"
      
      * tag 'md/4.0-rc7-fix' of git://neil.brown.name/md:
        md/raid0: fix bug with chunksize not a power of 2.
        md: fix md io stats accounting broken
      67dbb3a0
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 90036013
      Linus Torvalds authored
      Pull KVM updates from Paolo Bonzini:
       "First batch of KVM changes for 4.1
      
        The most interesting bit here is irqfd/ioeventfd support for ARM and
        ARM64.
      
        Summary:
      
        ARM/ARM64:
           fixes for live migration, irqfd and ioeventfd support (enabling
           vhost, too), page aging
      
        s390:
           interrupt handling rework, allowing to inject all local interrupts
           via new ioctl and to get/set the full local irq state for migration
           and introspection.  New ioctls to access memory by virtual address,
           and to get/set the guest storage keys.  SIMD support.
      
        MIPS:
           FPU and MIPS SIMD Architecture (MSA) support.  Includes some
           patches from Ralf Baechle's MIPS tree.
      
        x86:
           bugfixes (notably for pvclock, the others are small) and cleanups.
           Another small latency improvement for the TSC deadline timer"
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (146 commits)
        KVM: use slowpath for cross page cached accesses
        kvm: mmu: lazy collapse small sptes into large sptes
        KVM: x86: Clear CR2 on VCPU reset
        KVM: x86: DR0-DR3 are not clear on reset
        KVM: x86: BSP in MSR_IA32_APICBASE is writable
        KVM: x86: simplify kvm_apic_map
        KVM: x86: avoid logical_map when it is invalid
        KVM: x86: fix mixed APIC mode broadcast
        KVM: x86: use MDA for interrupt matching
        kvm/ppc/mpic: drop unused IRQ_testbit
        KVM: nVMX: remove unnecessary double caching of MAXPHYADDR
        KVM: nVMX: checks for address bits beyond MAXPHYADDR on VM-entry
        KVM: x86: cache maxphyaddr CPUID leaf in struct kvm_vcpu
        KVM: vmx: pass error code with internal error #2
        x86: vdso: fix pvclock races with task migration
        KVM: remove kvm_read_hva and kvm_read_hva_atomic
        KVM: x86: optimize delivery of TSC deadline timer interrupt
        KVM: x86: extract blocking logic from __vcpu_run
        kvm: x86: fix x86 eflags fixed bit
        KVM: s390: migrate vcpu interrupt state
        ...
      90036013
    • Linus Torvalds's avatar
      Merge tag 'linux-kselftest-4.1-rc1' of... · 4541fec3
      Linus Torvalds authored
      Merge tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
      
      Pull kselftest updates from Shuah Khan:
       "This is a milestone update in a sense.  Several new tests and install
        and packaging support is added in this update.
      
        This update adds install and packaging tools developed on top of
        back-end shared logic enhancemnets to run and install tests.  In
        addition several timer tests are added.
      
         - New timer tests from John Stultz
      
         - rtc test from Prarit Bhargava
      
         - Enhancements to un and install tests from Michael Ellerman
      
         - Install and packaging tools from Shuah Khan
      
         - Cross-compilation enablement from Tyler Baker
      
         - A couple of bug fixes"
      
      * tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (42 commits)
        ftracetest: Do not use usleep directly
        selftest/mqueue: enable cross compilation
        selftest/ipc: enable cross compilation
        selftest/memfd: include default header install path
        selftest/mount: enable cross compilation
        selftest/memfd: enable cross compilation
        kselftests: timers: Make set-timer-lat fail more gracefully for !CAP_WAKE_ALARM
        selftests: Change memory on-off-test.sh name to be unique
        selftests: change cpu on-off-test.sh name to be unique
        selftests/mount: Make git ignore all binaries in mount test suite
        kselftests: timers: Reduce default runtime on inconsistency-check and set-timer-lat
        ftracetest: Convert exit -1 to exit $FAIL
        ftracetest: Cope properly with stack tracer not being enabled
        tools, update rtctest.c to verify passage of time
        Documentation, split up rtc.txt into documentation and test file
        selftests: Add tool to generate kselftest tar archive
        selftests: Add kselftest install tool
        selftests: Set CC using CROSS_COMPILE once in lib.mk
        selftests: Add install support for the powerpc tests
        selftests/timers: Use shared logic to run and install tests
        ...
      4541fec3
  2. 12 Apr, 2015 3 commits
  3. 11 Apr, 2015 16 commits
  4. 10 Apr, 2015 11 commits
  5. 09 Apr, 2015 1 commit
    • Rafael J. Wysocki's avatar
      Merge branches 'pm-sleep', 'pm-cpufreq' and 'pm-cpuidle' · b2d5fb97
      Rafael J. Wysocki authored
      * pm-sleep:
        Revert "PM / hibernate: avoid unsafe pages in e820 reserved regions"
      
      * pm-cpufreq:
        cpufreq: Schedule work for the first-online CPU on resume
      
      * pm-cpuidle:
        cpuidle: ACPI: do not overwrite name and description of C0
        cpuidle: remove state_count field from struct cpuidle_device
      b2d5fb97