1. 30 Jan, 2018 25 commits
    • Vitaly Kuznetsov's avatar
      x86/kvm: Pass stable clocksource to guests when running nested on Hyper-V · b0c39dc6
      Vitaly Kuznetsov authored
      Currently, KVM is able to work in 'masterclock' mode passing
      PVCLOCK_TSC_STABLE_BIT to guests when the clocksource which is used on the
      host is TSC.
      
      When running nested on Hyper-V the guest normally uses a different one: TSC
      page which is resistant to TSC frequency changes on events like L1
      migration. Add support for it in KVM.
      
      The only non-trivial change is in vgettsc(): when updating the gtod copy
      both the clock readout and tsc value have to be updated now.
      Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Acked-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
      Cc: Stephen Hemminger <sthemmin@microsoft.com>
      Cc: kvm@vger.kernel.org
      Cc: Radim Krčmář <rkrcmar@redhat.com>
      Cc: Haiyang Zhang <haiyangz@microsoft.com>
      Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
      Cc: Roman Kagan <rkagan@virtuozzo.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: devel@linuxdriverproject.org
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Cathy Avery <cavery@redhat.com>
      Cc: Mohammed Gamal <mmorsy@redhat.com>
      Link: https://lkml.kernel.org/r/20180124132337.30138-7-vkuznets@redhat.com
      b0c39dc6
    • Vitaly Kuznetsov's avatar
      x86/irq: Count Hyper-V reenlightenment interrupts · 51d4e5da
      Vitaly Kuznetsov authored
      Hyper-V reenlightenment interrupts arrive when the VM is migrated, While
      they are not interesting in general it's important when L2 nested guests
      are running.
      Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: Stephen Hemminger <sthemmin@microsoft.com>
      Cc: kvm@vger.kernel.org
      Cc: Radim Krčmář <rkrcmar@redhat.com>
      Cc: Haiyang Zhang <haiyangz@microsoft.com>
      Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
      Cc: Roman Kagan <rkagan@virtuozzo.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: devel@linuxdriverproject.org
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Cathy Avery <cavery@redhat.com>
      Cc: Mohammed Gamal <mmorsy@redhat.com>
      Link: https://lkml.kernel.org/r/20180124132337.30138-6-vkuznets@redhat.com
      51d4e5da
    • Vitaly Kuznetsov's avatar
      x86/hyperv: Redirect reenlightment notifications on CPU offlining · e7c4e36c
      Vitaly Kuznetsov authored
      It is very unlikely for CPUs to get offlined when running on Hyper-V as
      there is a protection in the vmbus module which prevents it when the guest
      has any VMBus devices assigned. This, however, may change in future if an
      option to reassign an already active channel will be added. It is also
      possible to run without any Hyper-V devices or to have a CPU with no
      assigned channels.
      
      Reassign reenlightenment notifications to some other active CPU when the
      CPU which is assigned to them goes offline.
      Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: Stephen Hemminger <sthemmin@microsoft.com>
      Cc: kvm@vger.kernel.org
      Cc: Radim Krčmář <rkrcmar@redhat.com>
      Cc: Haiyang Zhang <haiyangz@microsoft.com>
      Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
      Cc: Roman Kagan <rkagan@virtuozzo.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: devel@linuxdriverproject.org
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Cathy Avery <cavery@redhat.com>
      Cc: Mohammed Gamal <mmorsy@redhat.com>
      Link: https://lkml.kernel.org/r/20180124132337.30138-5-vkuznets@redhat.com
      e7c4e36c
    • Vitaly Kuznetsov's avatar
      x86/hyperv: Reenlightenment notifications support · 93286261
      Vitaly Kuznetsov authored
      Hyper-V supports Live Migration notification. This is supposed to be used
      in conjunction with TSC emulation: when a VM is migrated to a host with
      different TSC frequency for some short period the host emulates the
      accesses to TSC and sends an interrupt to notify about the event. When the
      guest is done updating everything it can disable TSC emulation and
      everything will start working fast again.
      
      These notifications weren't required until now as Hyper-V guests are not
      supposed to use TSC as a clocksource: in Linux the TSC is even marked as
      unstable on boot. Guests normally use 'tsc page' clocksource and host
      updates its values on migrations automatically.
      
      Things change when with nested virtualization: even when the PV
      clocksources (kvm-clock or tsc page) are passed through to the nested
      guests the TSC frequency and frequency changes need to be know..
      
      Hyper-V Top Level Functional Specification (as of v5.0b) wrongly specifies
      EAX:BIT(12) of CPUID:0x40000009 as the feature identification bit. The
      right one to check is EAX:BIT(13) of CPUID:0x40000003. I was assured that
      the fix in on the way.
      Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: Stephen Hemminger <sthemmin@microsoft.com>
      Cc: kvm@vger.kernel.org
      Cc: Radim Krčmář <rkrcmar@redhat.com>
      Cc: Haiyang Zhang <haiyangz@microsoft.com>
      Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
      Cc: Roman Kagan <rkagan@virtuozzo.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: devel@linuxdriverproject.org
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Cathy Avery <cavery@redhat.com>
      Cc: Mohammed Gamal <mmorsy@redhat.com>
      Link: https://lkml.kernel.org/r/20180124132337.30138-4-vkuznets@redhat.com
      93286261
    • Vitaly Kuznetsov's avatar
      x86/hyperv: Add a function to read both TSC and TSC page value simulateneously · e2768eaa
      Vitaly Kuznetsov authored
      This is going to be used from KVM code where both TSC and TSC page value
      are needed.
      
      Nothing is supposed to use the function when Hyper-V code is compiled out,
      just BUG().
      Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: Stephen Hemminger <sthemmin@microsoft.com>
      Cc: kvm@vger.kernel.org
      Cc: Radim Krčmář <rkrcmar@redhat.com>
      Cc: Haiyang Zhang <haiyangz@microsoft.com>
      Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
      Cc: Roman Kagan <rkagan@virtuozzo.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: devel@linuxdriverproject.org
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Cathy Avery <cavery@redhat.com>
      Cc: Mohammed Gamal <mmorsy@redhat.com>
      Link: https://lkml.kernel.org/r/20180124132337.30138-3-vkuznets@redhat.com
      e2768eaa
    • Vitaly Kuznetsov's avatar
      x86/hyperv: Check for required priviliges in hyperv_init() · 89a8f6d4
      Vitaly Kuznetsov authored
      In hyperv_init() its presumed that it always has access to VP index and
      hypercall MSRs while according to the specification it should be checked if
      it's allowed to access the corresponding MSRs before accessing them.
      Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: Stephen Hemminger <sthemmin@microsoft.com>
      Cc: kvm@vger.kernel.org
      Cc: Radim Krčmář <rkrcmar@redhat.com>
      Cc: Haiyang Zhang <haiyangz@microsoft.com>
      Cc: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
      Cc: Roman Kagan <rkagan@virtuozzo.com>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: devel@linuxdriverproject.org
      Cc: Paolo Bonzini <pbonzini@redhat.com>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Cathy Avery <cavery@redhat.com>
      Cc: Mohammed Gamal <mmorsy@redhat.com>
      Link: https://lkml.kernel.org/r/20180124132337.30138-2-vkuznets@redhat.com
      89a8f6d4
    • Linus Torvalds's avatar
      Merge branch 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 72906f38
      Linus Torvalds authored
      Pull x86 hyperv update from Ingo Molnar:
       "Enable PCID support on Hyper-V guests"
      
      * 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/hyperv: Stop suppressing X86_FEATURE_PCID
      72906f38
    • Linus Torvalds's avatar
      Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3ccabd6d
      Linus Torvalds authored
      Pull x86 cleanups from Ingo Molnar:
       "Misc cleanups"
      
      * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Remove unused IOMMU_STRESS Kconfig
        x86/extable: Mark exception handler functions visible
        x86/timer: Don't inline __const_udelay
        x86/headers: Remove duplicate #includes
      3ccabd6d
    • Linus Torvalds's avatar
      Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5289d300
      Linus Torvalds authored
      Pull x86 apic cleanup from Ingo Molnar:
       "A single change simplifying the APIC code bit"
      
      * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/apic: Remove local var in flat_send_IPI_allbutself()
      5289d300
    • Linus Torvalds's avatar
      Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · af8c5e2d
      Linus Torvalds authored
      Pull scheduler updates from Ingo Molnar:
       "The main changes in this cycle were:
      
         - Implement frequency/CPU invariance and OPP selection for
           SCHED_DEADLINE (Juri Lelli)
      
         - Tweak the task migration logic for better multi-tasking
           workload scalability (Mel Gorman)
      
         - Misc cleanups, fixes and improvements"
      
      * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/deadline: Make bandwidth enforcement scale-invariant
        sched/cpufreq: Move arch_scale_{freq,cpu}_capacity() outside of #ifdef CONFIG_SMP
        sched/cpufreq: Remove arch_scale_freq_capacity()'s 'sd' parameter
        sched/cpufreq: Always consider all CPUs when deciding next freq
        sched/cpufreq: Split utilization signals
        sched/cpufreq: Change the worker kthread to SCHED_DEADLINE
        sched/deadline: Move CPU frequency selection triggering points
        sched/cpufreq: Use the DEADLINE utilization signal
        sched/deadline: Implement "runtime overrun signal" support
        sched/fair: Only immediately migrate tasks due to interrupts if prev and target CPUs share cache
        sched/fair: Correct obsolete comment about cpufreq_update_util()
        sched/fair: Remove impossible condition from find_idlest_group_cpu()
        sched/cpufreq: Don't pass flags to sugov_set_iowait_boost()
        sched/cpufreq: Initialize sg_cpu->flags to 0
        sched/fair: Consider RT/IRQ pressure in capacity_spare_wake()
        sched/fair: Use 'unsigned long' for utilization, consistently
        sched/core: Rework and clarify prepare_lock_switch()
        sched/fair: Remove unused 'curr' parameter from wakeup_gran
        sched/headers: Constify object_is_on_stack()
      af8c5e2d
    • Linus Torvalds's avatar
      Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a1c75e17
      Linus Torvalds authored
      Pull x86 RAS updates from Ingo Molnar:
      
       - various AMD SMCA error parsing/reporting improvements (Yazen Ghannam)
      
       - extend Intel CMCI error reporting to more cases (Xie XiuQi)
      
      * 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/MCE: Make correctable error detection look at the Deferred bit
        x86/MCE: Report only DRAM ECC as memory errors on AMD systems
        x86/MCE/AMD: Define a function to get SMCA bank type
        x86/mce/AMD: Don't set DEF_INT_TYPE in MSR_CU_DEF_ERR on SMCA systems
        x86/MCE: Extend table to report action optional errors through CMCI too
      a1c75e17
    • Linus Torvalds's avatar
      Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d8b91dde
      Linus Torvalds authored
      Pull perf updates from Ingo Molnar:
       "Kernel side changes:
      
         - Clean up the x86 instruction decoder (Masami Hiramatsu)
      
         - Add new uprobes optimization for PUSH instructions on x86 (Yonghong
           Song)
      
         - Add MSR_IA32_THERM_STATUS to the MSR events (Stephane Eranian)
      
         - Fix misc bugs, update documentation, plus various cleanups (Jiri
           Olsa)
      
        There's a large number of tooling side improvements:
      
         - Intel-PT/BTS improvements (Adrian Hunter)
      
         - Numerous 'perf trace' improvements (Arnaldo Carvalho de Melo)
      
         - Introduce an errno code to string facility (Hendrik Brueckner)
      
         - Various build system improvements (Jiri Olsa)
      
         - Add support for CoreSight trace decoding by making the perf tools
           use the external openCSD (Mathieu Poirier, Tor Jeremiassen)
      
         - Add ARM Statistical Profiling Extensions (SPE) support (Kim
           Phillips)
      
         - libtraceevent updates (Steven Rostedt)
      
         - Intel vendor event JSON updates (Andi Kleen)
      
         - Introduce 'perf report --mmaps' and 'perf report --tasks' to show
           info present in 'perf.data' (Jiri Olsa, Arnaldo Carvalho de Melo)
      
         - Add infrastructure to record first and last sample time to the
           perf.data file header, so that when processing all samples in a
           'perf record' session, such as when doing build-id processing, or
           when specifically requesting that that info be recorded, use that
           in 'perf report --time', that also got support for percent slices
           in addition to absolute ones.
      
           I.e. now it is possible to ask for the samples in the 10%-20% time
           slice of a perf.data file (Jin Yao)
      
         - Allow system wide 'perf stat --per-thread', sorting the result (Jin
           Yao)
      
           E.g.:
      
            [root@jouet ~]# perf stat --per-thread --metrics IPC
            ^C
             Performance counter stats for 'system wide':
      
                        make-22229  23,012,094,032  inst_retired.any   #  0.8 IPC
                         cc1-22419     692,027,497  inst_retired.any   #  0.8 IPC
                         gcc-22418     328,231,855  inst_retired.any   #  0.9 IPC
                         cc1-22509     220,853,647  inst_retired.any   #  0.8 IPC
                         gcc-22486     199,874,810  inst_retired.any   #  1.0 IPC
                          as-22466     177,896,365  inst_retired.any   #  0.9 IPC
                         cc1-22465     150,732,374  inst_retired.any   #  0.8 IPC
                         gcc-22508     112,555,593  inst_retired.any   #  0.9 IPC
                         cc1-22487     108,964,079  inst_retired.any   #  0.7 IPC
             qemu-system-x86-2697       21,330,550  inst_retired.any   #  0.3 IPC
             systemd-journal-551        20,642,951  inst_retired.any   #  0.4 IPC
             docker-containe-17651       9,552,892  inst_retired.any   #  0.5 IPC
             dockerd-current-9809        7,528,586  inst_retired.any   #  0.5 IPC
                        make-22153  12,504,194,380  inst_retired.any   #  0.8 IPC
                     python2-22429  12,081,290,954  inst_retired.any   #  0.8 IPC
            <SNIP>
                     python2-22429  15,026,328,103  cpu_clk_unhalted.thread
                         cc1-22419     826,660,193  cpu_clk_unhalted.thread
                         gcc-22418     365,321,295  cpu_clk_unhalted.thread
                         cc1-22509     279,169,362  cpu_clk_unhalted.thread
                         gcc-22486     210,156,950  cpu_clk_unhalted.thread
            <SNIP>
      
                 5.638075538 seconds time elapsed
      
           [root@jouet ~]#
      
         - Improve shell auto-completion of perf events (Jin Yao)
      
         - 'perf probe' improvements (Masami Hiramatsu)
      
         - Improve PMU infrastructure to support amp64's ThunderX2
           implementation defined core events (Ganapatrao Kulkarni)
      
         - Various annotation related improvements and fixes (Thomas Richter)
      
         - Clarify usage of 'overwrite' and 'backward' in the evlist/mmap
           code, removing the 'overwrite' parameter from several functions as
           it was always used it as 'false' (Wang Nan)
      
         - Fix/improve 'perf record' reverse recording support (Wang Nan)
      
         - Improve command line options documentation (Sihyeon Jang)
      
         - Optimize sample parsing for ordering events, where we don't need to
           parse all the PERF_SAMPLE_ bits, just the ones leading to the
           timestamp needed to reorder events (Jiri Olsa)
      
         - Generalize the annotation code to support other source information
           besides objdump/DWARF obtained ones, starting with python scripts,
           that will is slated to be merged soon (Jiri Olsa)
      
         - ... and a lot more that I failed to list, see the shortlog and
           changelog for details"
      
      * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
        perf trace beauty flock: Move to separate object file
        perf evlist: Remove fcntl.h from evlist.h
        perf trace beauty futex: Beautify FUTEX_BITSET_MATCH_ANY
        perf trace: Do not print from time delta for interrupted syscall lines
        perf trace: Add --print-sample
        perf bpf: Remove misplaced __maybe_unused attribute
        MAINTAINERS: Adding entry for CoreSight trace decoding
        perf tools: Add mechanic to synthesise CoreSight trace packets
        perf tools: Add full support for CoreSight trace decoding
        pert tools: Add queue management functionality
        perf tools: Add functionality to communicate with the openCSD decoder
        perf tools: Add support for decoding CoreSight trace data
        perf tools: Add decoder mechanic to support dumping trace data
        perf tools: Add processing of coresight metadata
        perf tools: Add initial entry point for decoder CoreSight traces
        perf tools: Integrating the CoreSight decoding library
        perf vendor events intel: Update IvyTown files to V20
        perf vendor events intel: Update IvyBridge files to V20
        perf vendor events intel: Update BroadwellDE events to V7
        perf vendor events intel: Update SkylakeX events to V1.06
        ...
      d8b91dde
    • Linus Torvalds's avatar
      Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5e7481a2
      Linus Torvalds authored
      Pull locking updates from Ingo Molnar:
       "The main changes relate to making lock_is_held() et al (and external
        wrappers of them) work on const data types - this requires const
        propagation through the depths of lockdep.
      
        This removes a number of ugly type hacks the external helpers used"
      
      * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        lockdep: Convert some users to const
        lockdep: Make lockdep checking constant
        lockdep: Assign lock keys on registration
      5e7481a2
    • Linus Torvalds's avatar
      Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b8dbf730
      Linus Torvalds authored
      Pull EFI updates from Ingo Molnar:
       "The biggest change in this cycle was the addition of ARM CPER error
        decoding when printing EFI errors into the kernel log.
      
        There are also misc smaller updates: documentation update, cleanups
        and an EFI memory map permissions quirk"
      
      * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/efi: Clarify that reset attack mitigation needs appropriate userspace
        efi: Parse ARM error information value
        efi: Move ARM CPER code to new file
        efi: Use PTR_ERR_OR_ZERO()
        arm64/efi: Ignore EFI_MEMORY_XP attribute if RP and/or WP are set
        efi/capsule-loader: Fix pr_err() string to end with newline
      b8dbf730
    • Linus Torvalds's avatar
      Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d7727946
      Linus Torvalds authored
      Pull RCU updates from Ingo Molnar:
       "The main RCU changes in this cycle were:
      
         - Updates to use cond_resched() instead of cond_resched_rcu_qs()
           where feasible (currently everywhere except in kernel/rcu and in
           kernel/torture.c). Also a couple of fixes to avoid sending IPIs to
           offline CPUs.
      
         - Updates to simplify RCU's dyntick-idle handling.
      
         - Updates to remove almost all uses of smp_read_barrier_depends() and
           read_barrier_depends().
      
         - Torture-test updates.
      
         - Miscellaneous fixes"
      
      * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (72 commits)
        torture: Save a line in stutter_wait(): while -> for
        torture: Eliminate torture_runnable and perf_runnable
        torture: Make stutter less vulnerable to compilers and races
        locking/locktorture: Fix num reader/writer corner cases
        locking/locktorture: Fix rwsem reader_delay
        torture: Place all torture-test modules in one MAINTAINERS group
        rcutorture/kvm-build.sh: Skip build directory check
        rcutorture: Simplify functions.sh include path
        rcutorture: Simplify logging
        rcutorture/kvm-recheck-*: Improve result directory readability check
        rcutorture/kvm.sh: Support execution from any directory
        rcutorture/kvm.sh: Use consistent help text for --qemu-args
        rcutorture/kvm.sh: Remove unused variable, `alldone`
        rcutorture: Remove unused script, config2frag.sh
        rcutorture/configinit: Fix build directory error message
        rcutorture: Preempt RCU-preempt readers more vigorously
        torture: Reduce #ifdefs for preempt_schedule()
        rcu: Remove have_rcu_nocb_mask from tree_plugin.h
        rcu: Add comment giving debug strategy for double call_rcu()
        tracing, rcu: Hide trace event rcu_nocb_wake when not used
        ...
      d7727946
    • Linus Torvalds's avatar
      Merge branch 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c1488798
      Linus Torvalds authored
      Pull STRICT_DEVMEM default from Ingo Molnar:
       "Make CONFIG_STRICT_DEVMEM default-y on x86 and arm64 as well, to
        follow the distro status quo"
      
      * 'core-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        Kconfig: Make STRICT_DEVMEM default-y on x86 and arm64
      c1488798
    • Linus Torvalds's avatar
      Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 6304672b
      Linus Torvalds authored
      Pull x86/pti updates from Thomas Gleixner:
       "Another set of melted spectrum related changes:
      
         - Code simplifications and cleanups for RSB and retpolines.
      
         - Make the indirect calls in KVM speculation safe.
      
         - Whitelist CPUs which are known not to speculate from Meltdown and
           prepare for the new CPUID flag which tells the kernel that a CPU is
           not affected.
      
         - A less rigorous variant of the module retpoline check which merily
           warns when a non-retpoline protected module is loaded and reflects
           that fact in the sysfs file.
      
         - Prepare for Indirect Branch Prediction Barrier support.
      
         - Prepare for exposure of the Speculation Control MSRs to guests, so
           guest OSes which depend on those "features" can use them. Includes
           a blacklist of the broken microcodes. The actual exposure of the
           MSRs through KVM is still being worked on"
      
      * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/speculation: Simplify indirect_branch_prediction_barrier()
        x86/retpoline: Simplify vmexit_fill_RSB()
        x86/cpufeatures: Clean up Spectre v2 related CPUID flags
        x86/cpu/bugs: Make retpoline module warning conditional
        x86/bugs: Drop one "mitigation" from dmesg
        x86/nospec: Fix header guards names
        x86/alternative: Print unadorned pointers
        x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support
        x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes
        x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown
        x86/msr: Add definitions for new speculation control MSRs
        x86/cpufeatures: Add AMD feature bits for Speculation Control
        x86/cpufeatures: Add Intel feature bits for Speculation Control
        x86/cpufeatures: Add CPUID_7_EDX CPUID leaf
        module/retpoline: Warn about missing retpoline in module
        KVM: VMX: Make indirect call speculation safe
        KVM: x86: Make indirect calls in emulator speculation safe
      6304672b
    • Linus Torvalds's avatar
      Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 94263352
      Linus Torvalds authored
      Pull x86 mm update from Thomas Gleixner:
       "A single patch which excludes the GART aperture from vmcore as
        accessing that area from a dump kernel can crash the kernel.
      
        Not necessarily the nicest way to fix this, but curing this from
        ground up requires a more thorough rewrite of the whole kexec/kdump
        magic"
      
      * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/gart: Exclude GART aperture from vmcore
      94263352
    • Linus Torvalds's avatar
      Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 36c289e7
      Linus Torvalds authored
      Pull x86 timer updates from Thomas Gleixner:
       "A small set of updates for x86 specific timers:
      
         - Mark TSC invariant on a subset of Centaur CPUs
      
         - Allow TSC calibration without PIT on mobile platforms which lack
           legacy devices"
      
      * 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/centaur: Mark TSC invariant
        x86/tsc: Introduce early tsc clocksource
        x86/time: Unconditionally register legacy timer interrupt
        x86/tsc: Allow TSC calibration without PIT
      36c289e7
    • Linus Torvalds's avatar
      Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 669c0f76
      Linus Torvalds authored
      Pull x86 platform updates from Thomas Gleixner:
       "The platform support for x86 contains the following updates:
      
         - A set of updates for the UV platform to support new CPUs and to fix
           some of the UV4A BAU MRRs
      
         - The initial platform support for the jailhouse hypervisor to allow
           native Linux guests (inmates) in non-root cells.
      
         - A fix for the PCI initialization on Intel MID platforms"
      
      * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
        x86/jailhouse: Respect pci=lastbus command line settings
        x86/jailhouse: Set X86_FEATURE_TSC_KNOWN_FREQ
        x86/platform/intel-mid: Move PCI initialization to arch_init()
        x86/platform/uv/BAU: Replace hard-coded values with MMR definitions
        x86/platform/UV: Fix UV4A BAU MMRs
        x86/platform/UV: Fix GAM MMR references in the UV x2apic code
        x86/platform/UV: Fix GAM MMR changes in UV4A
        x86/platform/UV: Add references to access fixed UV4A HUB MMRs
        x86/platform/UV: Fix UV4A support on new Intel Processors
        x86/platform/UV: Update uv_mmrs.h to prepare for UV4A fixes
        x86/jailhouse: Add PCI dependency
        x86/jailhouse: Hide x2apic code when CONFIG_X86_X2APIC=n
        x86/jailhouse: Initialize PCI support
        x86/jailhouse: Wire up IOAPIC for legacy UART ports
        x86/jailhouse: Halt instead of failing to restart
        x86/jailhouse: Silence ACPI warning
        x86/jailhouse: Avoid access of unsupported platform resources
        x86/jailhouse: Set up timekeeping
        x86/jailhouse: Enable PMTIMER
        x86/jailhouse: Enable APIC and SMP support
        ...
      669c0f76
    • Linus Torvalds's avatar
      Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · f0b13428
      Linus Torvalds authored
      Pull x86/cache updates from Thomas Gleixner:
       "A set of patches which add support for L2 cache partitioning to the
        Intel RDT facility"
      
      * 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/intel_rdt: Add command line parameter to control L2_CDP
        x86/intel_rdt: Enable L2 CDP in MSR IA32_L2_QOS_CFG
        x86/intel_rdt: Add two new resources for L2 Code and Data Prioritization (CDP)
        x86/intel_rdt: Enumerate L2 Code and Data Prioritization (CDP) feature
        x86/intel_rdt: Add L2CDP support in documentation
        x86/intel_rdt: Update documentation
      f0b13428
    • Linus Torvalds's avatar
      Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a46d3f9b
      Linus Torvalds authored
      Pull timer updates from Thomas Gleixner:
       "The timer departement presents:
      
         - A rather large rework of the hrtimer infrastructure which
           introduces softirq based hrtimers to replace the spread of
           hrtimer/tasklet combos which force the actual callback execution
           into softirq context. The approach is completely different from the
           initial implementation which you cursed at 10 years ago rightfully.
      
           The softirq based timers have their own queues and there is no
           nasty indirection and list reshuffling in the hard interrupt
           anymore. This comes with conversion of some of the hrtimer/tasklet
           users, the rest and the final removal of that horrible interface
           will come towards the end of the merge window or go through the
           relevant maintainer trees.
      
           Note: The top commit merged the last minute bugfix for the 10 years
           old CPU hotplug bug as I wanted to make sure that I fatfinger the
           merge conflict resolution myself.
      
         - The overhaul of the STM32 clocksource/clockevents driver
      
         - A new driver for the Spreadtrum SC9860 timer
      
         - A new driver dor the Actions Semi S700 timer
      
         - The usual set of fixes and updates all over the place"
      
      * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits)
        usb/gadget/NCM: Replace tasklet with softirq hrtimer
        ALSA/dummy: Replace tasklet with softirq hrtimer
        hrtimer: Implement SOFT/HARD clock base selection
        hrtimer: Implement support for softirq based hrtimers
        hrtimer: Prepare handling of hard and softirq based hrtimers
        hrtimer: Add clock bases and hrtimer mode for softirq context
        hrtimer: Use irqsave/irqrestore around __run_hrtimer()
        hrtimer: Factor out __hrtimer_next_event_base()
        hrtimer: Factor out __hrtimer_start_range_ns()
        hrtimer: Remove the 'base' parameter from hrtimer_reprogram()
        hrtimer: Make remote enqueue decision less restrictive
        hrtimer: Unify remote enqueue handling
        hrtimer: Unify hrtimer removal handling
        hrtimer: Make hrtimer_force_reprogramm() unconditionally available
        hrtimer: Make hrtimer_reprogramm() unconditional
        hrtimer: Make hrtimer_cpu_base.next_timer handling unconditional
        hrtimer: Make the remote enqueue check unconditional
        hrtimer: Use accesor functions instead of direct access
        hrtimer: Make the hrtimer_cpu_base::hres_active field unconditional, to simplify the code
        hrtimer: Make room in 'struct hrtimer_cpu_base'
        ...
      a46d3f9b
    • Linus Torvalds's avatar
      Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7bcd3425
      Linus Torvalds authored
      Pull irq updates from Thomas Gleixner:
       "A rather small set of irq updates this time:
      
         - removal of the old and now obsolete irq domain debugging code
      
         - the new Goldfish PIC driver
      
         - the usual pile of small fixes and updates"
      
      * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqdomain: Kill CONFIG_IRQ_DOMAIN_DEBUG
        irq/work: Improve the flag definitions
        irqchip/gic-v3: Fix the driver probe() fail due to disabled GICC entry
        irqchip/irq-goldfish-pic: Add Goldfish PIC driver
        dt-bindings/goldfish-pic: Add device tree binding for Goldfish PIC driver
        irqchip/ompic: fix return value check in ompic_of_init()
        dt-bindings/bcm283x: Define polarity of per-cpu interrupts
        irqchip/irq-bcm2836: Add support for DT interrupt polarity
        dt-bindings/bcm2836-l1-intc: Add interrupt polarity support
      7bcd3425
    • Linus Torvalds's avatar
      Merge tag 'xtensa-20180129' of git://github.com/jcmvbkbc/linux-xtensa · d0bd31dc
      Linus Torvalds authored
      Pull Xtensa updates from Max Filippov:
      
       - add SSP support
      
       - add KASAN support
      
       - improvements to xtensa-specific assembly:
          - use ENTRY and ENDPROC consistently
          - clean up and unify word alignment macros
          - clean up and unify fixup marking
          - use 'call' instead of 'callx' where possible
      
       - various cleanups:
          - consiolidate kernel stack size related definitions
          - replace #ifdef'fed/commented out debug printk statements with
            pr_debug
          - use struct exc_table instead of flat array for exception handling
            data
      
       - build kernel with -mtext-section-literals; simplify xtensa linker
         script
      
       - fix futex_atomic_cmpxchg_inatomic()
      
      * tag 'xtensa-20180129' of git://github.com/jcmvbkbc/linux-xtensa: (21 commits)
        xtensa: fix futex_atomic_cmpxchg_inatomic
        xtensa: shut up gcc-8 warnings
        xtensa: print kernel sections info in mem_init
        xtensa: use generic strncpy_from_user with KASAN
        xtensa: use __memset in __xtensa_clear_user
        xtensa: add support for KASAN
        xtensa: move fixmap and kmap just above the KSEG
        xtensa: don't clear swapper_pg_dir in paging_init
        xtensa: extract init_kio
        xtensa: implement early_trap_init
        xtensa: clean up exception handling structure
        xtensa: clean up custom-controlled debug output
        xtensa: enable stack protector
        xtensa: print hardware config ID on startup
        xtensa: consolidate kernel stack size related definitions
        xtensa: clean up functions in assembly code
        xtensa: clean up word alignment macros in assembly code
        xtensa: clean up fixups in assembly code
        xtensa: use call instead of callx in assembly code
        xtensa: build kernel with text-section-literals
        ...
      d0bd31dc
    • Linus Torvalds's avatar
      Merge tag 'm68k-for-v4.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k · aca21de2
      Linus Torvalds authored
      Pull m68k updates from Geert Uytterhoeven:
      
        - first part of an overhaul of the NuBus subsystem, to bring it up to
          modern driver model standards
      
        - a race condition fix for Mac
      
        - defconfig updates
      
      * tag 'm68k-for-v4.16-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
        MAINTAINERS: Add NuBus subsystem entry
        m68k/mac: Fix race conditions in OSS interrupt dispatch
        nubus: Add support for the driver model
        nubus: Add expansion_type values for various Mac models
        nubus: Adopt standard linked list implementation
        nubus: Rename struct nubus_dev
        nubus: Rework /proc/bus/nubus/s/ implementation
        nubus: Generalize block resource handling
        nubus: Clean up whitespace
        nubus: Remove redundant code
        nubus: Call proc_mkdir() not more than once per slot directory
        nubus: Validate slot resource IDs
        nubus: Fix log spam
        nubus: Use static functions where possible
        nubus: Fix up header split
        nubus: Avoid array underflow and overflow
        m68k/defconfig: Update defconfigs for v4.15-rc1
      aca21de2
  2. 29 Jan, 2018 15 commits
    • Linus Torvalds's avatar
      Merge tag 'for-4.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 31466f3e
      Linus Torvalds authored
      Pull btrfs updates from David Sterba:
       "Features or user visible changes:
      
         - fallocate: implement zero range mode
      
         - avoid losing data raid profile when deleting a device
      
         - tree item checker: more checks for directory items and xattrs
      
        Notable fixes:
      
         - raid56 recovery: don't use cached stripes, that could be
           potentially changed and a later RMW or recovery would lead to
           corruptions or failures
      
         - let raid56 try harder to rebuild damaged data, reading from all
           stripes if necessary
      
         - fix scrub to repair raid56 in a similar way as in the case above
      
        Other:
      
         - cleanups: device freeing, removed some call indirections, redundant
           bio_put/_get, unused parameters, refactorings and renames
      
         - RCU list traversal fixups
      
         - simplify mount callchain, remove recursing back when mounting a
           subvolume
      
         - plug for fsync, may improve bio merging on multiple devices
      
         - compression heurisic: replace heap sort with radix sort, gains some
           performance
      
         - add extent map selftests, buffered write vs dio"
      
      * tag 'for-4.16-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (155 commits)
        btrfs: drop devid as device_list_add() arg
        btrfs: get device pointer from device_list_add()
        btrfs: set the total_devices in device_list_add()
        btrfs: move pr_info into device_list_add
        btrfs: make btrfs_free_stale_devices() to match the path
        btrfs: rename btrfs_free_stale_devices() arg to skip_dev
        btrfs: make btrfs_free_stale_devices() argument optional
        btrfs: make btrfs_free_stale_device() to iterate all stales
        btrfs: no need to check for btrfs_fs_devices::seeding
        btrfs: Use IS_ALIGNED in btrfs_truncate_block instead of opencoding it
        Btrfs: noinline merge_extent_mapping
        Btrfs: add WARN_ONCE to detect unexpected error from merge_extent_mapping
        Btrfs: extent map selftest: dio write vs dio read
        Btrfs: extent map selftest: buffered write vs dio read
        Btrfs: add extent map selftests
        Btrfs: move extent map specific code to extent_map.c
        Btrfs: add helper for em merge logic
        Btrfs: fix unexpected EEXIST from btrfs_get_extent
        Btrfs: fix incorrect block_len in merge_extent_mapping
        btrfs: Remove unused readahead spinlock
        ...
      31466f3e
    • Linus Torvalds's avatar
      Merge tag '4.16-rc-SMB3' of git://git.samba.org/sfrench/cifs-2.6 · 6787dc24
      Linus Torvalds authored
      Pull cifs updates from Steve French:
       "Some fixes for stable, fixed SMB3 DFS support, SMB3 Direct (RDMA) and
        various bug fixes and cleanup"
      
      * tag '4.16-rc-SMB3' of git://git.samba.org/sfrench/cifs-2.6: (60 commits)
        fs/cifs/cifsacl.c Fixes typo in a comment
        update internal version number for cifs.ko
        cifs: add .splice_write
        CIFS: document tcon/ses/server refcount dance
        move a few externs to smbdirect.h to eliminate warning
        CIFS: zero sensitive data when freeing
        Cleanup some minor endian issues in smb3 rdma
        CIFS: dump IPC tcon in debug proc file
        CIFS: use tcon_ipc instead of use_ipc parameter of SMB2_ioctl
        CIFS: make IPC a regular tcon
        cifs: remove redundant duplicated assignment of pointer 'node'
        CIFS: SMBD: work around gcc -Wmaybe-uninitialized warning
        cifs: Fix autonegotiate security settings mismatch
        CIFS: SMBD: _smbd_get_connection() can be static
        CIFS: SMBD: Disable signing on SMB direct transport
        CIFS: SMBD: Add SMB Direct debug counters
        CIFS: SMBD: Upper layer performs SMB read via RDMA write through memory registration
        CIFS: SMBD: Read correct returned data length for RDMA write (SMB read) I/O
        CIFS: SMBD: Upper layer performs SMB write via RDMA read through memory registration
        CIFS: SMBD: Implement RDMA memory registration
        ...
      6787dc24
    • Linus Torvalds's avatar
      Merge tag 'iversion-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux · a4b7fd7d
      Linus Torvalds authored
      Pull inode->i_version rework from Jeff Layton:
       "This pile of patches is a rework of the inode->i_version field. We
        have traditionally incremented that field on every inode data or
        metadata change. Typically this increment needs to be logged on disk
        even when nothing else has changed, which is rather expensive.
      
        It turns out though that none of the consumers of that field actually
        require this behavior. The only real requirement for all of them is
        that it be different iff the inode has changed since the last time the
        field was checked.
      
        Given that, we can optimize away most of the i_version increments and
        avoid dirtying inode metadata when the only change is to the i_version
        and no one is querying it. Queries of the i_version field are rather
        rare, so we can help write performance under many common workloads.
      
        This patch series converts existing accesses of the i_version field to
        a new API, and then converts all of the in-kernel filesystems to use
        it. The last patch in the series then converts the backend
        implementation to a scheme that optimizes away a large portion of the
        metadata updates when no one is looking at it.
      
        In my own testing this series significantly helps performance with
        small I/O sizes. I also got this email for Christmas this year from
        the kernel test robot (a 244% r/w bandwidth improvement with XFS over
        DAX, with 4k writes):
      
          https://lkml.org/lkml/2017/12/25/8
      
        A few of the earlier patches in this pile are also flowing to you via
        other trees (mm, integrity, and nfsd trees in particular)".
      
      * tag 'iversion-v4.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: (22 commits)
        fs: handle inode->i_version more efficiently
        btrfs: only dirty the inode in btrfs_update_time if something was changed
        xfs: avoid setting XFS_ILOG_CORE if i_version doesn't need incrementing
        fs: only set S_VERSION when updating times if necessary
        IMA: switch IMA over to new i_version API
        xfs: convert to new i_version API
        ufs: use new i_version API
        ocfs2: convert to new i_version API
        nfsd: convert to new i_version API
        nfs: convert to new i_version API
        ext4: convert to new i_version API
        ext2: convert to new i_version API
        exofs: switch to new i_version API
        btrfs: convert to new i_version API
        afs: convert to new i_version API
        affs: convert to new i_version API
        fat: convert to new i_version API
        fs: don't take the i_lock in inode_inc_iversion
        fs: new API for handling inode->i_version
        ntfs: remove i_version handling
        ...
      a4b7fd7d
    • Linus Torvalds's avatar
      Merge tag 'upstream-4.16-rc1' of git://git.infradead.org/linux-ubifs · d1de762e
      Linus Torvalds authored
      Pull UBI/UBIFS updates from Richard Weinberger:
      
       - use the new fscrypt APIs
      
       - a fix for a Fastmap issue
      
       - other minor bug fixes
      
      * tag 'upstream-4.16-rc1' of git://git.infradead.org/linux-ubifs:
        ubi: block: Fix locking for idr_alloc/idr_remove
        mtd: ubi: wl: Fix error return code in ubi_wl_init()
        ubi: Fix copy/paste error in function documentation
        ubi: Fastmap: Fix typo
        ubifs: remove error message in ubifs_xattr_get
        ubi: fastmap: Erase outdated anchor PEBs during attach
        ubifs: switch to fscrypt_prepare_setattr()
        ubifs: switch to fscrypt_prepare_lookup()
        ubifs: switch to fscrypt_prepare_rename()
        ubifs: switch to fscrypt_prepare_link()
        ubifs: switch to fscrypt_file_open()
        ubi: fastmap: Clean up the initialization of pointer p
        ubi: fastmap: Use kmem_cache_free to deallocate memory
        ubi: Fix race condition between ubi volume creation and udev
        mtd: ubi: Use 'max_bad_blocks' to compute bad_peb_limit if available
        ubifs: Fix uninitialized variable in search_dh_cookie()
      d1de762e
    • Linus Torvalds's avatar
      Merge branch 'for-4.16/block' of git://git.kernel.dk/linux-block · 0a4b6e2f
      Linus Torvalds authored
      Pull block updates from Jens Axboe:
       "This is the main pull request for block IO related changes for the
        4.16 kernel. Nothing major in this pull request, but a good amount of
        improvements and fixes all over the map. This contains:
      
         - BFQ improvements, fixes, and cleanups from Angelo, Chiara, and
           Paolo.
      
         - Support for SMR zones for deadline and mq-deadline from Damien and
           Christoph.
      
         - Set of fixes for bcache by way of Michael Lyle, including fixes
           from himself, Kent, Rui, Tang, and Coly.
      
         - Series from Matias for lightnvm with fixes from Hans Holmberg,
           Javier, and Matias. Mostly centered around pblk, and the removing
           rrpc 1.2 in preparation for supporting 2.0.
      
         - A couple of NVMe pull requests from Christoph. Nothing major in
           here, just fixes and cleanups, and support for command tracing from
           Johannes.
      
         - Support for blk-throttle for tracking reads and writes separately.
           From Joseph Qi. A few cleanups/fixes also for blk-throttle from
           Weiping.
      
         - Series from Mike Snitzer that enables dm to register its queue more
           logically, something that's alwways been problematic on dm since
           it's a stacked device.
      
         - Series from Ming cleaning up some of the bio accessor use, in
           preparation for supporting multipage bvecs.
      
         - Various fixes from Ming closing up holes around queue mapping and
           quiescing.
      
         - BSD partition fix from Richard Narron, fixing a problem where we
           can't mount newer (10/11) FreeBSD partitions.
      
         - Series from Tejun reworking blk-mq timeout handling. The previous
           scheme relied on atomic bits, but it had races where we would think
           a request had timed out if it to reused at the wrong time.
      
         - null_blk now supports faking timeouts, to enable us to better
           exercise and test that functionality separately. From me.
      
         - Kill the separate atomic poll bit in the request struct. After
           this, we don't use the atomic bits on blk-mq anymore at all. From
           me.
      
         - sgl_alloc/free helpers from Bart.
      
         - Heavily contended tag case scalability improvement from me.
      
         - Various little fixes and cleanups from Arnd, Bart, Corentin,
           Douglas, Eryu, Goldwyn, and myself"
      
      * 'for-4.16/block' of git://git.kernel.dk/linux-block: (186 commits)
        block: remove smart1,2.h
        nvme: add tracepoint for nvme_complete_rq
        nvme: add tracepoint for nvme_setup_cmd
        nvme-pci: introduce RECONNECTING state to mark initializing procedure
        nvme-rdma: remove redundant boolean for inline_data
        nvme: don't free uuid pointer before printing it
        nvme-pci: Suspend queues after deleting them
        bsg: use pr_debug instead of hand crafted macros
        blk-mq-debugfs: don't allow write on attributes with seq_operations set
        nvme-pci: Fix queue double allocations
        block: Set BIO_TRACE_COMPLETION on new bio during split
        blk-throttle: use queue_is_rq_based
        block: Remove kblockd_schedule_delayed_work{,_on}()
        blk-mq: Avoid that blk_mq_delay_run_hw_queue() introduces unintended delays
        blk-mq: Rename blk_mq_request_direct_issue() into blk_mq_request_issue_directly()
        lib/scatterlist: Fix chaining support in sgl_alloc_order()
        blk-throttle: track read and write request individually
        block: add bdev_read_only() checks to common helpers
        block: fail op_is_write() requests to read-only partitions
        blk-throttle: export io_serviced_recursive, io_service_bytes_recursive
        ...
      0a4b6e2f
    • Linus Torvalds's avatar
      Merge tag 'edac_for_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp · 9697e9da
      Linus Torvalds authored
      Pull EDAC updates from Borislav Petkov:
      
       - new EDAC driver for some TI SOCs (Tero Kristo)
      
       - small cleanups
      
      * tag 'edac_for_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
        EDAC, mv64x60: Fix an error handling path
        EDAC, ti: Add support for TI keystone and DRA7xx EDAC
        EDAC, octeon: Fix an uninitialized variable warning
      9697e9da
    • Linus Torvalds's avatar
      Merge tag 'regmap-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap · b5856f97
      Linus Torvalds authored
      Pull regmap updates from Mark Brown:
       "A very busy release for regmap, all fairly specialist stuff but
        useful:
      
         - Support for disabling locking from Bartosz Golaszewski, allowing
           users that handle their own locking to save some overhead.
      
         - Support for hwspinlocks in syscons in MFD from Baolin Wang, this is
           going through the regmap tree since the first users turned up some
           some cases that needed interface tweaks with 0 being used as a
           syscon identifier.
      
         - Support for devices with no read or write flag from Andrew F.
           Davis.
      
         - Basic support for devices on SoundWire buses from Vinod Koul"
      
      * tag 'regmap-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
        mfd: syscon: Add hardware spinlock support
        regmap: Allow empty read/write_flag_mask
        regcache: flat: Un-inline index lookup from cache access
        regmap: Add SoundWire bus support
        regmap: Add one flag to indicate if a hwlock should be used
        regmap: debugfs: document why we don't create the debugfs entries
        regmap: debugfs: emit a debug message when locking is disabled
        regmap: use proper part of work_buf for storing val
        regmap: potentially duplicate the name string stored in regmap
        regmap: Disable debugfs when locking is disabled
        regmap: rename regmap_lock_unlock_empty() to regmap_lock_unlock_none()
        regmap: allow to disable all locking mechanisms
        regmap: Remove the redundant config to select hwspinlock
      b5856f97
    • Linus Torvalds's avatar
      Merge tag 'regulator-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator · dc38787a
      Linus Torvalds authored
      Pull regulator updates from Mark Brown:
       "This is a quiet release in terms of code volume but a fairly big one
        in terms of framework changes - we've got one long awaited feature in
        the form of runtime configuration of suspend and the start of coupled
        regulator support too:
      
         - Support for modifying the voltage and enable configuration devices
           will have in suspend, contributed by Chunyan Zhang.
      
         - Support for the Spreadtrum SC2731, contributed by Erick Chen.
      
         - The start of changes to support coupled regulators from Maciej
           Purski, the rest of the series should arrive for v4.17"
      
      * tag 'regulator-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
        regulator: Fix build error
        regulator: core: Refactor regulator_list_voltage()
        regulator: core: Move of_find_regulator_by_node() to of_regulator.c
        regulator: add PM suspend and resume hooks
        regulator: empty the old suspend functions
        regulator: leave one item to record whether regulator is enabled
        regulator: make regulator voltage be an array to support more states
        regulator: added support for suspend states
        regulator: qcom_spmi: Use regmap helpers for enable/disable/is_enabled callback
        regulator: sc2731: Fix defines for SC2731_WR_UNLOCK and SC2731_PWR_WR_PROT_VALUE
        regulator: fix incorrect indentation of two assignment statements
        regulator: sc2731: Add regulator driver to support Spreadtrum SC2731 PMIC
        regulator: Add Spreadtrum SC2731 regulator documentation
        regulator: Update code examples in documentation
        MAINTAINERS: regulator: Add Documentation/power/regulator/
        regulator: tps65218: Add NULL test for devm_kzalloc call
        regulator: tps65218: Remove unused enum tps65218_regulators
      dc38787a
    • Linus Torvalds's avatar
      Merge tag 'spi-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi · 8e326471
      Linus Torvalds authored
      Pull spi updates from Mark Brown:
       "Quite a quiet release for SPI, there are no changes at all to the core
        and not that many changes to drivers. Highlights of those driver
        changes include:
      
         - SH MSIOF support for GPIO chip selects contributed by Geert
           Uytterhoeven.
      
         - Full duplex support for a3700 contributed by Maxime Chevallier.
      
         - Support for DMA transfers on Atmel devices that require a bounce
           buffer contributed by Radu Pirea"
      
      * tag 'spi-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (31 commits)
        spi: dw: Remove unused members from struct chip_data
        spi: orion: Fix a resource leak if the optional "axi" clk is deferred
        spi: a3700: Remove endianness swapping for full-duplex transfers
        spi: a3700: Remove endianness swapping functions when accessing FIFOs
        spi: a3700: Add full-duplex support
        spi: a3700: Allow to enable or disable FIFO mode
        spi: a3700: Set frequency limits at startup
        spi: a3700: Clear DATA_OUT when performing a read
        spi: orion: Fix clock resource by adding an optional bus clock
        spi: s3c64xx: add SPDX identifier
        spi: imx: do not access registers while clocks disabled
        spi: atmel: Implements transfers with bounce buffer
        spi: sh-msiof: Fix timeout failures for TX-only DMA transfers
        spi: spi-fsl-dspi: account for const type of of_device_id.data
        spi: bcm53xx: simplify reading SPI data
        spi: sirf: account for const type of of_device_id.data
        spi: pxa2xx: Use gpiod_put() not gpiod_free()
        spi: pxa2xx: avoid redundant gpio_to_desc(desc_to_gpio()) round-trip
        spi: sh-msiof: Document hardware limitations related to chip selects
        spi: sh-msiof: Implement cs-gpios configuration
        ...
      8e326471
    • Linus Torvalds's avatar
      Merge tag 'mmc-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · 0bae60fc
      Linus Torvalds authored
      Pull MMC updates from Ulf Hansson:
       "There are two major achievements for MMC in this release, which
        deserves to be specially highlighted.
      
        First, we have converted the MMC block device from using the legacy
        blk interface into using the modern blkmq interface. Not only do we
        get all the nice effects from using blkmq, but it also means that new
        fresh nice code replaces old rusty code. Great news to everybody that
        cares about MMC/SD!
      
        It should also be noted that converting to blkmq has not been trivial,
        mostly because of that we have been carrying too much of MMC specific
        optimizations for the I/O request path, rather than striving to move
        these to the generic blk layer. Hopefully we won't be doing that
        mistake, ever again.
      
        Special thanks to Adrian Hunter (Intel) and to Linus Walleij (Linaro),
        who both have been working on this for quite some time!
      
        Second, on top of the blkmq deployment, we have enabled full support
        the eMMC command queuing feature, introduced in the eMMC v.5.1 spec.
        This also includes an implementation of a host driver library,
        supporting the corresponding CQHCI HW. Ideally, those controllers that
        supports CQHCI should only need some minor adaptations to make this
        play.
      
        So far the sdhci-pci driver for the Intel GLKs and the sdhci-of-arasan
        driver used on Rockchip RK3399, have enabled support for eMMC command
        queueing.
      
        Worth to highlight is also that, implementing the eMMC command queuing
        support has been a collaborative effort, as several people from
        Codeaurora, Rockchip, Intel and Linaro have been involved. However,
        the work has been driven by Adrian Hunter (Intel).
      
        In some shadow of the above, here are the rest of the highlights:
      
        MMC core:
         - Don't remove non-removable cards during system suspend
         - Add a slot-gpio helper to check capability of GPIO WP detection
      
        MMC host:
         - sdhci: Cleanups and improvements of some wakeup related code
         - sdhci-pci-arasan: New variant to support Arasan PCI HW with integrated phy
         - sdhci-acpi: Avoid broken UHS transfer modes on Intel CHT
         - sdhci-acpi: Add support for ACPI HID of AMD Controller with HS400
         - sdhci_f_sdh30: Add ACPI support
         - sdhci-esdhc-imx: Enable/disable clock at runtime suspend/resume
         - sdhci-of-esdhc: A few minor fixes
         - mmci: Add support for new STM32 variant
         - renesas_sdhi: enable R-Car D3 (r8a77995) support
         - tmio/renesas_sdhi: Re-structuring, cleanups and modernizations"
      
      * tag 'mmc-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (96 commits)
        mmc: mmci: fix error return code in mmci_probe()
        mmc: davinci: suppress error message on EPROBE_DEFER
        mmc: davinci: dont' use module_platform_driver_probe()
        mmc: tmio: hide unused tmio_mmc_clk_disable/tmio_mmc_clk_enable functions
        mmc: mmci: Add STM32 variant
        mmc: mmci: Add support for setting pad type via pinctrl
        mmc: mmci: Don't pretend all variants to have OPENDRAIN bit
        mmc: mmci: Don't pretend all variants to have MCI_STARBITERR flag
        mmc: mmci: Don't pretend all variants to have MMCIMASK1 register
        mmc: tmio: refactor .get_ro hook
        mmc: slot-gpio: add a helper to check capability of GPIO WP detection
        mmc: tmio: remove dma_ops from tmio_mmc_host_probe() argument
        mmc: tmio: move {tmio_}mmc_of_parse() to tmio_mmc_host_alloc()
        mmc: tmio: move clk_enable/disable out of tmio_mmc_host_probe()
        mmc: tmio: ioremap memory resource in tmio_mmc_host_alloc()
        mmc: sh_mmcif: remove redundant initialization of 'opc'
        mmc: sdhci: Rework sdhci_enable_irq_wakeups()
        mmc: sdhci: Handle failure of enable_irq_wake()
        mmc: sdhci: Stop exporting sdhci_enable_irq_wakeups()
        mmc: sdhci-pci: Use device wakeup capability to determine MMC_PM_WAKE_SDIO_IRQ capability
        ...
      0bae60fc
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-linus-v4.16' of... · 47d5cc5b
      Linus Torvalds authored
      Merge tag 'hwmon-for-linus-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
      
      Pull hwmon updates from Guenter Roeck:
      
       - New driver for W83773G
      
       - Fan control support for PMBus drivers
      
       - Improvements and minor fixes in several drivers
      
      * tag 'hwmon-for-linus-v4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (32 commits)
        hwmon: (dell-smm) Disable fan support for Dell Vostro 3360
        hwmon: (dell-smm) Disable fan support for Dell Inspiron 7720
        hwmon: (dell-smm) Enable broken functionality via "force" module param
        hwmon: (k10temp) Add temperature offset for Ryzen 1900X
        hwmon: (lm75) Fix trailing semicolon
        hwmon: (ina2xx) Fix access to uninitialized mutex
        hwmon: (pmbus/ir35221) Remove unnecessary scaling
        hwmon: (sht3x) wait predefined limits loading complete before access
        hwmon: (pmbus/ibm-cffps) Add dependency on LEDS_CLASS
        hwmon: (pmbus/cffps) Add led class device for power supply fault led
        hwmon: (pmbus) cffps: Add PMBUS_SKIP_STATUS_CHECK
        hwmon: (aspeed-pwm-tacho) Deassert reset in probe
        dt-bindings: hwmon: aspeed-pwm-tacho: Add reset node
        hwmon: (pmbus) cffps: Add debugfs entries
        hwmon: (pmbus) Export pmbus device debugfs directory entry
        hwmon: (w83773g) Fix fault detection and reporting
        hwmon: (hih6130) Fix documentation of struct hih6130
        hwmon: (iio_hwmon) Fix documentation of struct iio_hwmon_state
        hwmon: (sht15) Fix parameter documentation of sht15_crc8()
        hwmon: (sht21) Fix documentation of struct sht21
        ...
      47d5cc5b
    • Linus Torvalds's avatar
      Merge tag 'mtd/for-4.16' of git://git.infradead.org/linux-mtd · 0fc7e746
      Linus Torvalds authored
      Pull MTD updates from Boris Brezillon:
       "MTD core changes:
         - Rework core functions to avoid duplicating generic checks in
           NAND/OneNAND sub-layers
         - Update the MAINTAINERS entry to reflect the fact that MTD
           maintainers now use a single git tree
      
        MTD driver changes:
         - CFI: use macros instead of inline functions to limit stack usage
           and make KASAN happy
      
        NAND core changes:
         - Fix NAND_CMD_NONE handling in nand_command[_lp]() hooks
         - Introduce the ->exec_op() infrastructure
         - Rework NAND buffers handling
         - Fix ECC requirements for K9F4G08U0D
         - Fix nand_do_read_oob() to return the number of bitflips
         - Mark K9F1G08U0E as not supporting subpage writes
      
        NAND driver changes:
         - MTK: Rework the driver to support new IP versions
         - OMAP OneNAND: Full rework to use new APIs (libgpio, dmaengine) and
           fix DT support
         - Marvell: Add a new driver to replace the pxa3xx one
      
        SPI NOR core changes:
         - Add support to new ISSI and Cypress/Spansion memory parts.
         - Fix support of Micron memories by checking error bits in the FSR.
         - Fix update of block-protection bits by reading back the SR.
         - Restore the internal state of the SPI flash memory when removing
           the device.
      
        SPI NOR driver changes:
         - Maintenance for Freescale, Intel and Metiatek drivers.
         - Add support of the direct access mode for the Cadence QSPI
           controller"
      
      * tag 'mtd/for-4.16' of git://git.infradead.org/linux-mtd: (93 commits)
        mtd: nand: sunxi: Fix ECC strength choice
        mtd: nand: gpmi: Fix subpage reads
        mtd: nand: Fix build issues due to an anonymous union
        mtd: nand: marvell: Fix missing memory allocation modifier
        mtd: nand: marvell: remove redundant variable 'oob_len'
        mtd: nand: marvell: fix spelling mistake: "suceed"-> "succeed"
        mtd: onenand: omap2: Remove redundant dev_err call in omap2_onenand_probe()
        mtd: Remove duplicate checks on mtd_oob_ops parameter
        mtd: Fallback to ->_read/write_oob() when ->_read/write() is missing
        mtd: mtdpart: Make ECC stat handling consistent
        mtd: onenand: omap2: print resource using %pR format string
        mtd: mtk-nor: modify functions' name more generally
        mtd: onenand: samsung: remove incorrect __iomem annotation
        MAINTAINERS: Add entry for Marvell NAND controller driver
        ARM: OMAP2+: Remove gpmc-onenand
        mtd: onenand: omap2: Configure driver from DT
        mtd: onenand: omap2: Decouple DMA enabling from INT pin availability
        mtd: onenand: omap2: Do not make delay for GPIO OMAP3 specific
        mtd: onenand: omap2: Convert to use dmaengine for memcpy
        mtd: onenand: omap2: Unify OMAP2 and OMAP3 DMA implementation
        ...
      0fc7e746
    • Linus Torvalds's avatar
      Merge tag 'for-backlight-next-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight · aa5e75bc
      Linus Torvalds authored
      Pull backlight updates from Lee Jones:
       "Fix-ups:
         - Deprecate pci_get_bus_and_slot() in apple_bl
      
        Bug Fixes:
         - Enable Chip Select when conducting SPI transfers in corgi_lcd,
           tdo24m, tosa_lcd"
      
      * tag 'for-backlight-next-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
        backlight: tdo24m: Fix the SPI CS between transfers
        backlight: apple_bl: Deprecate pci_get_bus_and_slot()
      aa5e75bc
    • Linus Torvalds's avatar
      Merge tag 'mfd-next-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd · bc4e1183
      Linus Torvalds authored
      Pull MFD updates from Lee Jones:
       "New Drivers:
         - Add support for RAVE Supervisory Processor
      
        Moved drivers:
         - Move Realtek Card Reader Driver to Misc
      
        New Device Support:
         - Add support for Pinctrl to axp20x
      
        New Functionality:
         - Add resume support to atmel-flexcom
      
        Fix-ups:
         - Split MFD (mfd) and userspace handlers (platform) in cros_ec
         - Fix trivial (whitespace, spelling) issue(s) in pcf50633-core
         - Clean-up error handling in ab8500-debugfs
         - General tidying up in tmio_core
         - Kconfig fix-ups for qcom-pm8xxx
         - Licensing changes (SPDX) to stm32-lptimer, stm32-timers
         - Device Tree fixups in mc13xxx
         - Simplify/remove unused code in cros_ec_spi, axp20x, ti_am335x_tscadc,
           kempld-core, intel_soc_pmic_core.c, ab8500-debugfs"
      
      * tag 'mfd-next-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (32 commits)
        mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Apollo Lake
        mfd: axp20x: Mark axp288 CHRG_BAK_CTRL register volatile
        mfd: ab8500: Introduce DEFINE_SHOW_ATTRIBUTE() macro
        atmel_flexcom: Support resuming after a chip reset
        mfd: Remove duplicate includes
        dt-bindings: mfd: mc13xxx: Add the unit address to sysled
        mfd: stm32: Adopt SPDX identifier
        mfd: axp20x: Add pinctrl cell for AXP813
        mfd: pm8xxx: Make elegible for COMPILE_TEST
        mfd: kempld-core: Use resource_size function on resource object
        mfd: tmio: Move register macros to tmio_core.c
        mfd: cros ec: spi: Simplify delay handling between SPI messages
        mfd: palmas: Assign the right powerhold mask for tps65917
        mfd: ab8500-debugfs: Use common error handling code in ab8500_print_modem_registers()
        mfd: ti_am335x_tscadc: Remove redundant assignment to node
        mfd: pcf50633: Fix spelling mistake: 'Falied' -> 'Failed'
        dt-bindings: watchdog: Add bindings for RAVE SP watchdog driver
        watchdog: Add RAVE SP watchdog driver
        mfd: Add driver for RAVE Supervisory Processor
        serdev: Introduce devm_serdev_device_open()
        ...
      bc4e1183
    • Linus Torvalds's avatar
      Merge tag 'pnp-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 1c7385db
      Linus Torvalds authored
      Pull PNP updates from Rafael Wysocki:
       "These make pnpbios_thread_init() use PTR_ERR_OR_ZERO() and remove an
        unnecessary kallsyms include from drivers/pnp/quirks.c (Vasyl
        Gomonovych, Sergey Senozhatsky)"
      
      * tag 'pnp-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
        PNP: pnpbios: Use PTR_ERR_OR_ZERO()
        PNP: remove unneeded kallsyms include
      1c7385db