1. 12 11月, 2013 10 次提交
    • L
      Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 54e11304
      Linus Torvalds 提交于
      Pull x86 build changes from Ingo Molnar:
       "Two small changes"
      
      * 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, defconfig: Add DEVTMPFS and DEVTMPFS_MOUNT to *86*_defconfig
        x86, build: move build output statistics away from stderr
      54e11304
    • L
      Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 014d595c
      Linus Torvalds 提交于
      Pull x86 boot changes from Ingo Molnar:
       "Two changes that prettify and compactify the SMP bootup output from:
      
           smpboot: Booting Node   0, Processors  #1 #2 #3 OK
           smpboot: Booting Node   1, Processors  #4 #5 #6 #7 OK
           smpboot: Booting Node   2, Processors  #8 #9 #10 #11 OK
           smpboot: Booting Node   3, Processors  #12 #13 #14 #15 OK
           Brought up 16 CPUs
      
        to something like:
      
           x86: Booting SMP configuration:
           .... node  #0, CPUs:        #1  #2  #3
           .... node  #1, CPUs:    #4  #5  #6  #7
           .... node  #2, CPUs:    #8  #9 #10 #11
           .... node  #3, CPUs:   #12 #13 #14 #15
           x86: Booted up 4 nodes, 16 CPUs"
      
      * 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/boot: Further compress CPUs bootup message
        x86: Improve the printout of the SMP bootup CPU table
      014d595c
    • L
      Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ae795fe7
      Linus Torvalds 提交于
      Pull x86 user access changes from Ingo Molnar:
       "This tree contains two copy_[from/to]_user() build time checking
        changes/enhancements from Jan Beulich.
      
        The desired outcome is to get better compiler warnings with
        CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y, to keep people from
        introducing bugs such as overflows and information leaks"
      
      * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Unify copy_to_user() and add size checking to it
        x86: Unify copy_from_user() size checking
      ae795fe7
    • L
      Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b7ab6e3d
      Linus Torvalds 提交于
      Pull x86/apic fix from Ingo Molnar:
       "A single fix to the IO-APIC / local-APIC shutdown sequence"
      
      * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/apic: Disable I/O APIC before shutdown of the local APIC
      b7ab6e3d
    • L
      Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 87093826
      Linus Torvalds 提交于
      Pull timer changes from Ingo Molnar:
       "Main changes in this cycle were:
      
         - Updated full dynticks support.
      
         - Event stream support for architected (ARM) timers.
      
         - ARM clocksource driver updates.
      
         - Move arm64 to using the generic sched_clock framework & resulting
           cleanup in the generic sched_clock code.
      
         - Misc fixes and cleanups"
      
      * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits)
        x86/time: Honor ACPI FADT flag indicating absence of a CMOS RTC
        clocksource: sun4i: remove IRQF_DISABLED
        clocksource: sun4i: Report the minimum tick that we can program
        clocksource: sun4i: Select CLKSRC_MMIO
        clocksource: Provide timekeeping for efm32 SoCs
        clocksource: em_sti: convert to clk_prepare/unprepare
        time: Fix signedness bug in sysfs_get_uname() and its callers
        timekeeping: Fix some trivial typos in comments
        alarmtimer: return EINVAL instead of ENOTSUPP if rtcdev doesn't exist
        clocksource: arch_timer: Do not register arch_sys_counter twice
        timer stats: Add a 'Collection: active/inactive' line to timer usage statistics
        sched_clock: Remove sched_clock_func() hook
        arch_timer: Move to generic sched_clock framework
        clocksource: tcb_clksrc: Remove IRQF_DISABLED
        clocksource: tcb_clksrc: Improve driver robustness
        clocksource: tcb_clksrc: Replace clk_enable/disable with clk_prepare_enable/disable_unprepare
        clocksource: arm_arch_timer: Use clocksource for suspend timekeeping
        clocksource: dw_apb_timer_of: Mark a few more functions as __init
        clocksource: Put nodes passed to CLOCKSOURCE_OF_DECLARE callbacks centrally
        arm: zynq: Enable arm_global_timer
        ...
      87093826
    • L
      Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 39cf275a
      Linus Torvalds 提交于
      Pull scheduler changes from Ingo Molnar:
       "The main changes in this cycle are:
      
         - (much) improved CONFIG_NUMA_BALANCING support from Mel Gorman, Rik
           van Riel, Peter Zijlstra et al.  Yay!
      
         - optimize preemption counter handling: merge the NEED_RESCHED flag
           into the preempt_count variable, by Peter Zijlstra.
      
         - wait.h fixes and code reorganization from Peter Zijlstra
      
         - cfs_bandwidth fixes from Ben Segall
      
         - SMP load-balancer cleanups from Peter Zijstra
      
         - idle balancer improvements from Jason Low
      
         - other fixes and cleanups"
      
      * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (129 commits)
        ftrace, sched: Add TRACE_FLAG_PREEMPT_RESCHED
        stop_machine: Fix race between stop_two_cpus() and stop_cpus()
        sched: Remove unnecessary iteration over sched domains to update nr_busy_cpus
        sched: Fix asymmetric scheduling for POWER7
        sched: Move completion code from core.c to completion.c
        sched: Move wait code from core.c to wait.c
        sched: Move wait.c into kernel/sched/
        sched/wait: Fix __wait_event_interruptible_lock_irq_timeout()
        sched: Avoid throttle_cfs_rq() racing with period_timer stopping
        sched: Guarantee new group-entities always have weight
        sched: Fix hrtimer_cancel()/rq->lock deadlock
        sched: Fix cfs_bandwidth misuse of hrtimer_expires_remaining
        sched: Fix race on toggling cfs_bandwidth_used
        sched: Remove extra put_online_cpus() inside sched_setaffinity()
        sched/rt: Fix task_tick_rt() comment
        sched/wait: Fix build breakage
        sched/wait: Introduce prepare_to_wait_event()
        sched/wait: Add ___wait_cond_timeout() to wait_event*_timeout() too
        sched: Remove get_online_cpus() usage
        sched: Fix race in migrate_swap_stop()
        ...
      39cf275a
    • L
      Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ad5d6989
      Linus Torvalds 提交于
      Pull perf updates from Ingo Molnar:
       "As a first remark I'd like to note that the way to build perf tooling
        has been simplified and sped up, in the future it should be enough for
        you to build perf via:
      
              cd tools/perf/
              make install
      
        (ie without the -j option.) The build system will figure out the
        number of CPUs and will do a parallel build+install.
      
        The various build system inefficiencies and breakages Linus reported
        against the v3.12 pull request should now be resolved - please
        (re-)report any remaining annoyances or bugs.
      
        Main changes on the perf kernel side:
      
         * Performance optimizations:
            . perf ring-buffer code optimizations,          by Peter Zijlstra
            . perf ring-buffer code optimizations,          by Oleg Nesterov
            . x86 NMI call-stack processing optimizations,  by Peter Zijlstra
            . perf context-switch optimizations,            by Peter Zijlstra
            . perf sampling speedups,                       by Peter Zijlstra
            . x86 Intel PEBS processing speedups,           by Peter Zijlstra
      
         * Enhanced hardware support:
            . for Intel Ivy Bridge-EP uncore PMUs,          by Zheng Yan
            . for Haswell transactions,                     by Andi Kleen, Peter Zijlstra
      
         * Core perf events code enhancements and fixes by Oleg Nesterov:
            . for uprobes, if fork() is called with pending ret-probes
            . for uprobes platform support code
      
         * New ABI details by Andi Kleen:
            . Report x86 Haswell TSX transaction abort cost as weight
      
        Main changes on the perf tooling side (some of these tooling changes
        utilize the above kernel side changes):
      
         * 'perf report/top' enhancements:
      
            . Convert callchain children list to rbtree, greatly reducing the
              time taken for callchain processing, from Namhyung Kim.
      
            . Add new COMM infrastructure, further improving histogram
              processing, from Frédéric Weisbecker, one fix from Namhyung Kim.
      
            . Add /proc/kcore based live-annotation improvements, including
              build-id cache support, multi map 'call' instruction navigation
              fixes, kcore address validation, objdump workarounds.  From
              Adrian Hunter.
      
            . Show progress on histogram collapsing, that can take a long
              time, from Namhyung Kim.
      
            . Add --max-stack option to limit callchain stack scan in 'top'
              and 'report', improving callchain processing when reducing the
              stack depth is an option, from Waiman Long.
      
            . Add new option --ignore-vmlinux for perf top, from Willy
              Tarreau.
      
         * 'perf trace' enhancements:
      
            . 'perf trace' now can can use a 'perf probe' dynamic tracepoints
              to hook into the userspace -> kernel pathname copy so that it
              can map fds to pathnames without reading /proc/pid/fd/ symlinks.
              From Arnaldo Carvalho de Melo.
      
            . Show VFS path associated with fd in live sessions, using a
              'vfs_getname' 'perf probe' created dynamic tracepoint or by
              looking at /proc/pid/fd, from Arnaldo Carvalho de Melo.
      
            . Add 'trace' beautifiers for lots of syscall arguments, from
              Arnaldo Carvalho de Melo.
      
            . Implement more compact 'trace' output by suppressing zeroed
              args, from Arnaldo Carvalho de Melo.
      
            . Show thread COMM by default in 'trace', from Arnaldo Carvalho de
              Melo.
      
            . Add option to show full timestamp in 'trace', from David Ahern.
      
            . Add 'record' command in 'trace', to record raw_syscalls:*, from
              David Ahern.
      
            . Add summary option to dump syscall statistics in 'trace', from
              David Ahern.
      
            . Improve error messages in 'trace', providing hints about system
              configuration steps needed for using it, from Ramkumar
              Ramachandra.
      
            . 'perf trace' now emits hints as to why tracing is not possible,
              helping the user to setup the system to allow tracing in the
              desired permission granularity, telling if the problem is due to
              debugfs not being mounted or with not enough permission for
              !root, /proc/sys/kernel/perf_event_paranoit value, etc.  From
              Arnaldo Carvalho de Melo.
      
         * 'perf record' enhancements:
      
            . Check maximum frequency rate for record/top, emitting better
              error messages, from Jiri Olsa.
      
            . 'perf record' code cleanups, from David Ahern.
      
            . Improve write_output error message in 'perf record', from Adrian
              Hunter.
      
            . Allow specifying B/K/M/G unit to the --mmap-pages arguments,
              from Jiri Olsa.
      
            . Fix command line callchain attribute tests to handle the new
              -g/--call-chain semantics, from Arnaldo Carvalho de Melo.
      
         * 'perf kvm' enhancements:
      
            . Disable live kvm command if timerfd is not supported, from David
              Ahern.
      
            . Fix detection of non-core features, from David Ahern.
      
         * 'perf list' enhancements:
      
            . Add usage to 'perf list', from David Ahern.
      
            . Show error in 'perf list' if tracepoints not available, from
              Pekka Enberg.
      
         * 'perf probe' enhancements:
      
            . Support "$vars" meta argument syntax for local variables,
              allowing asking for all possible variables at a given probe
              point to be collected when it hits, from Masami Hiramatsu.
      
         * 'perf sched' enhancements:
      
            . Address the root cause of that 'perf sched' stack initialization
              build slowdown, by programmatically setting a big array after
              moving the global variable back to the stack.  Fix from Adrian
              Hunter.
      
         * 'perf script' enhancements:
      
            . Set up output options for in-stream attributes, from Adrian
              Hunter.
      
            . Print addr by default for BTS in 'perf script', from Adrian
              Juntmer
      
         * 'perf stat' enhancements:
      
            . Improved messages when doing profiling in all or a subset of
              CPUs using a workload as the session delimitator, as in:
      
               'perf stat --cpu 0,2 sleep 10s'
      
              from Arnaldo Carvalho de Melo.
      
            . Add units to nanosec-based counters in 'perf stat', from David
              Ahern.
      
            . Remove bogus info when using 'perf stat' -e cycles/instructions,
              from Ramkumar Ramachandra.
      
         * 'perf lock' enhancements:
      
            . 'perf lock' fixes and cleanups, from Davidlohr Bueso.
      
         * 'perf test' enhancements:
      
            . Fixup PERF_SAMPLE_TRANSACTION handling in sample synthesizing
              and 'perf test', from Adrian Hunter.
      
            . Clarify the "sample parsing" test entry, from Arnaldo Carvalho
              de Melo.
      
            . Consider PERF_SAMPLE_TRANSACTION in the "sample parsing" test,
              from Arnaldo Carvalho de Melo.
      
            . Memory leak fixes in 'perf test', from Felipe Pena.
      
         * 'perf bench' enhancements:
      
            . Change the procps visible command-name of invididual benchmark
              tests plus cleanups, from Ingo Molnar.
      
         * Generic perf tooling infrastructure/plumbing changes:
      
            . Separating data file properties from session, code
              reorganization from Jiri Olsa.
      
            . Fix version when building out of tree, as when using one of
              these:
      
              $ make help | grep perf
                perf-tar-src-pkg    - Build perf-3.12.0.tar source tarball
                perf-targz-src-pkg  - Build perf-3.12.0.tar.gz source tarball
                perf-tarbz2-src-pkg - Build perf-3.12.0.tar.bz2 source tarball
                perf-tarxz-src-pkg  - Build perf-3.12.0.tar.xz source tarball
              $
      
              from David Ahern.
      
            . Enhance option parse error message, showing just the help lines
              of the options affected, from Namhyung Kim.
      
            . libtraceevent updates from upstream trace-cmd repo, from Steven
              Rostedt.
      
            . Always use perf_evsel__set_sample_bit to set sample_type, from
              Adrian Hunter.
      
            . Memory and mmap leak fixes from Chenggang Qin.
      
            . Assorted build fixes for from David Ahern and Jiri Olsa.
      
            . Speed up and prettify the build system, from Ingo Molnar.
      
            . Implement addr2line directly using libbfd, from Roberto Vitillo.
      
            . Separate the GTK support in a separate libperf-gtk.so DSO, that
              is only loaded when --gtk is specified, from Namhyung Kim.
      
            . perf bash completion fixes and improvements from Ramkumar
              Ramachandra.
      
            . Support for Openembedded/Yocto -dbg packages, from Ricardo
              Ribalda Delgado.
      
        And lots and lots of other fixes and code reorganizations that did not
        make it into the list, see the shortlog, diffstat and the Git log for
        details!"
      
      * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (300 commits)
        uprobes: Fix the memory out of bound overwrite in copy_insn()
        uprobes: Fix the wrong usage of current->utask in uprobe_copy_process()
        perf tools: Remove unneeded include
        perf record: Remove post_processing_offset variable
        perf record: Remove advance_output function
        perf record: Refactor feature handling into a separate function
        perf trace: Don't relookup fields by name in each sample
        perf tools: Fix version when building out of tree
        perf evsel: Ditch evsel->handler.data field
        uprobes: Export write_opcode() as uprobe_write_opcode()
        uprobes: Introduce arch_uprobe->ixol
        uprobes: Kill module_init() and module_exit()
        uprobes: Move function declarations out of arch
        perf/x86/intel: Add Ivy Bridge-EP uncore IRP box support
        perf/x86/intel/uncore: Add filter support for IvyBridge-EP QPI boxes
        perf: Factor out strncpy() in perf_event_mmap_event()
        tools/perf: Add required memory barriers
        perf: Fix arch_perf_out_copy_user default
        perf: Update a stale comment
        perf: Optimize perf_output_begin() -- address calculation
        ...
      ad5d6989
    • L
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ef1417a5
      Linus Torvalds 提交于
      Pull leftover IRQ fixes from Ingo Molnar:
       "Two (minor) fixlets that missed v3.12"
      
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        genirq: Set the irq thread policy without checking CAP_SYS_NICE
        irq: DocBook/genericirq.tmpl: Correct various typos
      ef1417a5
    • L
      Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 1006fae3
      Linus Torvalds 提交于
      Pull IRQ changes from Ingo Molnar:
       "The biggest change this cycle are the softirq/hardirq stack
        interaction and nesting fixes, cleanups and reorganizations from
        Frederic.  This is the longer followup story to the softirq nesting
        fix that is already upstream (commit ded79754: "irq: Force hardirq
        exit's softirq processing on its own stack")"
      
      * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqchip: bcm2835: Convert to use IRQCHIP_DECLARE macro
        powerpc: Tell about irq stack coverage
        x86: Tell about irq stack coverage
        irq: Optimize softirq stack selection in irq exit
        irq: Justify the various softirq stack choices
        irq: Improve a bit softirq debugging
        irq: Optimize call to softirq on hardirq exit
        irq: Consolidate do_softirq() arch overriden implementations
        x86/irq: Correct comment about i8259 initialization
      1006fae3
    • L
      Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 70fdcb83
      Linus Torvalds 提交于
      Pull RCU updates from Ingo Molnar:
       "The main RCU changes in this cycle are:
      
         - Idle entry/exit changes, to throttle callback execution and other
           refinements to speed up kbuild, primarily to address performance
           issues located by Tibor Billes.
      
         - Grace-period related changes, primarily to aid in debugging,
           inspired by an -rt debugging session.
      
         - Code reorganization moving RCU's source files into its own
           kernel/rcu/ directory.
      
         - RCU documentation updates
      
         - Miscellaneous fixes.
      
        Note, the following commit:
      
          5c889690 mm: Place preemption point in do_mlockall() loop
      
        is identical to the commit already in your tree via email:
      
          22356f44 mm: Place preemption point in do_mlockall() loop
      
        [ Your version of the changelog nicely demonstrates it how kernel oops
          messages should be trimmed properly :-/ ]"
      
      * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
        rcu: Move RCU-related source code to kernel/rcu directory
        rcu: Fix occurrence of "the the" in checklist.txt
        kthread: Add pointer to vmstat-avoidance patch
        rcu: Update stall-warning documentation
        rcu: Consistent rcu_is_watching() naming
        rcu: Change EXPORT_SYMBOL() to EXPORT_SYMBOL_GPL()
        rcu: Is it safe to enter an RCU read-side critical section?
        rcu: Throttle invoke_rcu_core() invocations due to non-lazy callbacks
        rcu: Throttle rcu_try_advance_all_cbs() execution
        rcu: Remove redundant code from rcu_cleanup_after_idle()
        rcu: Fix CONFIG_RCU_NOCB_CPU_ALL panic on machines with sparse CPU mask
        rcu: Avoid sparse warnings in rcu_nocb_wake trace event
        rcu: Track rcu_nocb_kthread()'s sleeping and awakening
        rcu: Distinguish between NOCB and non-NOCB rcu_callback trace events
        rcu: Add tracing for rcuo no-CBs CPU wakeup handshake
        rcu: Add tracing of normal (non-NOCB) grace-period requests
        rcu: Add tracing to rcu_gp_kthread()
        rcu: Flag lockless access to ->gp_flags with ACCESS_ONCE()
        rcu: Prevent spurious-wakeup DoS attack on rcu_gp_kthread()
        rcu: Improve grace-period start logic
        ...
      70fdcb83
  2. 11 11月, 2013 14 次提交
    • P
      ftrace, sched: Add TRACE_FLAG_PREEMPT_RESCHED · e5137b50
      Peter Zijlstra 提交于
      Since the introduction of PREEMPT_NEED_RESCHED in:
      
        f27dde8d ("sched: Add NEED_RESCHED to the preempt_count")
      
      we need to be able to look at both TIF_NEED_RESCHED and
      PREEMPT_NEED_RESCHED to understand the full preemption behaviour.
      
      Add it to the trace output.
      Signed-off-by: NPeter Zijlstra <peterz@infradead.org>
      Acked-by: NSteven Rostedt <rostedt@goodmis.org>
      Cc: Fengguang Wu <fengguang.wu@intel.com>
      Cc: Huang Ying <ying.huang@intel.com>
      Cc: Yuanhan Liu <yuanhan.liu@linux.intel.com>
      Link: http://lkml.kernel.org/r/20131004152826.GP3081@twins.programming.kicks-ass.netSigned-off-by: NIngo Molnar <mingo@kernel.org>
      e5137b50
    • R
      stop_machine: Fix race between stop_two_cpus() and stop_cpus() · 7053ea1a
      Rik van Riel 提交于
      There is a race between stop_two_cpus, and the global stop_cpus.
      
      It is possible for two CPUs to get their stopper functions queued
      "backwards" from one another, resulting in the stopper threads
      getting stuck, and the system hanging. This can happen because
      queuing up stoppers is not synchronized.
      
      This patch adds synchronization between stop_cpus (a rare operation),
      and stop_two_cpus.
      Reported-and-Tested-by: NPrarit Bhargava <prarit@redhat.com>
      Signed-off-by: NRik van Riel <riel@redhat.com>
      Signed-off-by: NPeter Zijlstra <peterz@infradead.org>
      Acked-by: NMel Gorman <mgorman@suse.de>
      Link: http://lkml.kernel.org/r/20131101104146.03d1e043@annuminas.surriel.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
      7053ea1a
    • L
      Merge tag 'arc-v3.13-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc · edae583a
      Linus Torvalds 提交于
      Pull ARC changes from Vineet Gupta:
       - Towards a working SMP setup (ASID allocation, TLB Flush,...)
       - Support for TRACE_IRQFLAGS, LOCKDEP
       - cacheflush backend consolidation for I/D
       - Lots of allmodconfig fixlets from Chen
       - Other improvements/fixes
      
      * tag 'arc-v3.13-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (25 commits)
        ARC: [plat-arcfpga] defconfig update
        smp, ARC: kill SMP single function call interrupt
        ARC: [SMP] Disallow RTSC
        ARC: [SMP] Fix build failures for large NR_CPUS
        ARC: [SMP] enlarge possible NR_CPUS
        ARC: [SMP] TLB flush
        ARC: [SMP] ASID allocation
        arc: export symbol for pm_power_off in reset.c
        arc: export symbol for save_stack_trace() in stacktrace.c
        arc: remove '__init' for get_hw_config_num_irq()
        arc: remove '__init' for first_lines_of_secondary()
        arc: remove '__init' for setup_processor() and arc_init_IRQ()
        arc: kgdb: add default implementation for kgdb_roundup_cpus()
        ARC: Fix bogus gcc warning and micro-optimise TLB iteration loop
        ARC: Add support for irqflags tracing and lockdep
        ARC: Reset the value of Interrupt Priority Register
        ARC: Reduce #ifdef'ery for unaligned access emulation
        ARC: Change calling convention of do_page_fault()
        ARC: cacheflush optim - PTAG can be loop invariant if V-P is const
        ARC: cacheflush refactor #3: Unify the {d,i}cache flush leaf helpers
        ...
      edae583a
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k · 0a759b24
      Linus Torvalds 提交于
      Pull m68k updates from Geert Uytterhoeven:
       "Summary:
         - __put_user_unaligned may/will be used by btrfs
         - m68k part of a global cleanup"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
        m68k: Remove deprecated IRQF_DISABLED
        m68k/m68knommu: Implement __get_user_unaligned/__put_user_unaligned()
      0a759b24
    • L
      Merge branch 'parisc-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 78d4a420
      Linus Torvalds 提交于
      Pull parisc update from Helge Deller:
       - a bugfix for sticon (parisc text console driver) to not crash the
         64bit kernel on machines with more than 4GB RAM
       - added kernel audit support
       - made udelay() implementation SMP-safe
       - "make install" now does not depend on vmlinux
       - added defconfigs for 32- and 64-kernels
      
      * 'parisc-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: add generic 32- and 64-bit defconfigs
        parisc: sticon - unbreak on 64bit kernel
        parisc: signal fixup - SIGBUS vs. SIGSEGV
        parisc: implement full version of access_ok()
        parisc: correctly display number of active CPUs
        parisc: do not count IPI calls twice
        parisc: make udelay() SMP-safe
        parisc: remove duplicate define
        parisc: make "make install" not depend on vmlinux
        parisc: add kernel audit feature
        parisc: provide macro to create exception table entries
      78d4a420
    • I
      Merge branch 'uprobes/core' of... · caea6cf5
      Ingo Molnar 提交于
      Merge branch 'uprobes/core' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc into perf/core
      
      Pull uprobes fixes from Oleg Nesterov.
      Signed-off-by: NIngo Molnar <mingo@kernel.org>
      caea6cf5
    • L
      Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · f9efbce6
      Linus Torvalds 提交于
      Pull ARM SoC DT updates from Olof Johansson:
       "Most of this branch consists of updates, additions and general churn
        of the device tree source files in the kernel (arch/arm/boot/dts).
        Besides that, there are a few things to point out:
      
         - Lots of platform conversion on OMAP2+, with removal of old board
           files for various platforms.
         - Final conversion of a bunch of ux500 (ST-Ericsson) platforms as
           well
         - Some updates to pinctrl and other subsystems.  Most of these are
           for DT-enablement of the various platforms and acks have been
           collected"
      
      * tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (385 commits)
        ARM: dts: bcm11351: Use GIC/IRQ defines for sdio interrupts
        ARM: dts: bcm: Add missing UARTs for bcm11351 (bcm281xx)
        ARM: dts: bcm281xx: Add card detect GPIO
        ARM: dts: rename ARCH_BCM to ARCH_BCM_MOBILE (dt)
        ARM: bcm281xx: Add device node for the GPIO controller
        ARM: mvebu: Add Netgear ReadyNAS 104 board
        ARM: tegra: fix Tegra114 IOMMU register address
        ARM: kirkwood: add support for OpenBlocks A7 platform
        ARM: dts: omap4-panda: add DPI pinmuxing
        ARM: dts: AM33xx: Add RNG node
        ARM: dts: AM33XX: Add hwspinlock node
        ARM: dts: OMAP5: Add hwspinlock node
        ARM: dts: OMAP4: Add hwspinlock node
        ARM: dts: use 'status' property for PCIe nodes
        ARM: dts: sirf: add missed address-cells and size-cells for prima2 I2C
        ARM: dts: sirf: add missed cell, cs and dma channel for SPI nodes
        ARM: dts: sirf: add missed graphics2d iobg in atlas6 dts
        ARM: dts: sirf: add missed chhifbg node in prima2 and atlas6 dts
        ARM: dts: sirf: add missed memcontrol-monitor node in prima2 and atlas6 dts
        ARM: mvebu: Add the core-divider clock to Armada 370/XP
        ...
      f9efbce6
    • L
      Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 53575aa9
      Linus Torvalds 提交于
      Pull ARM driver updates from Olof Johansson:
       "Updates of SoC-near drivers and other driver updates that makes more
        sense to take through our tree.  In this case it's involved:
      
         - Some Davinci driver updates that has required corresponding
           platform code changes (gpio mostly)
         - CCI bindings and a few driver updates
         - Marvell mvebu patches for PCI MSI support (could have gone through
           the PCI tree for this release, but they were acked by Bjorn for
           3.12 so we kept them through arm-soc).
         - Marvell dove switch-over to DT-based PCIe configuration
         - Misc updates for Samsung platform dmaengine drivers"
      
      * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
        ARM: S3C24XX: add dma pdata for s3c2410, s3c2440 and s3c2442
        dmaengine: s3c24xx-dma: add support for the s3c2410 type of controller
        ARM: S3C24XX: Fix possible dma selection warning
        PCI: mvebu: make local functions static
        PCI: mvebu: add I/O access wrappers
        PCI: mvebu: Dynamically detect if the PEX link is up to enable hot plug
        ARM: mvebu: fix gated clock documentation
        ARM: dove: remove legacy pcie and clock init
        ARM: dove: switch to DT probed mbus address windows
        ARM: SAMSUNG: set s3c24xx_dma_filter for s3c64xx-spi0 device
        ARM: S3C24XX: add platform-devices for new dma driver for s3c2412 and s3c2443
        dmaengine: add driver for Samsung s3c24xx SoCs
        ARM: S3C24XX: number the dma clocks
        PCI: mvebu: add support for Marvell Dove SoCs
        PCI: mvebu: add support for reset on GPIO
        PCI: mvebu: remove subsys_initcall
        PCI: mvebu: increment nports only for registered ports
        PCI: mvebu: move clock enable before register access
        PCI: mvebu: add support for MSI
        irqchip: armada-370-xp: implement MSI support
        ...
      53575aa9
    • L
      Merge tag 'boards-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · d5aabbca
      Linus Torvalds 提交于
      Pull ARM SoC board updates from Olof Johansson:
       "Board-related updates.  This branch is getting smaller and smaller,
        which is the whole idea so that's reassuring.
      
        Right now by far most of the code is related to shmobile updates, and
        they are now switching over to removal of board code and migration to
        multiplatform, so we'll see their board code base shrink in the near
        future too, I hope.
      
        In addition to that is some defconfig updates, some display updates
        for OMAP and a bit of new board support for Rockchip boards"
      
      * tag 'boards-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (56 commits)
        ARM: rockchip: add support for rk3188 and Radxa Rock board
        ARM: rockchip: add dts for bqcurie2 tablet
        ARM: rockchip: enable arm-global-timer
        ARM: rockchip: move shared dt properties to common source file
        ARM: OMAP2+: display: Create omap_vout device inside omap_display_init
        ARM: OMAP2+: display: Create omapvrfb and omapfb devices inside omap_display_init
        ARM: OMAP2+: display: Create omapdrm device inside omap_display_init
        ARM: OMAP2+: drm: Don't build device for DMM
        ARM: tegra: defconfig updates
        RX-51: Add support for OMAP3 ROM Random Number Generator
        ARM: OMAP3: RX-51: ARM errata 430973 workaround
        ARM: OMAP3: Add secure function omap_smc3() which calling instruction smc #1
        ARM: shmobile: marzen: enable INTC IRQ
        ARM: shmobile: bockw: add SMSC support on reference
        ARM: shmobile: Use SMP on Koelsch
        ARM: shmobile: Remove KZM9D reference DTS
        ARM: shmobile: Let KZM9D multiplatform boot with KZM9D DTB
        ARM: shmobile: Remove non-multiplatform KZM9D reference support
        ARM: shmobile: Use KZM9D without reference for multiplatform
        ARM: shmobile: Sync KZM9D DTS with KZM9D reference DTS
        ...
      d5aabbca
    • L
      Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · aac59e3e
      Linus Torvalds 提交于
      Pull ARM SoC platform changes from Olof Johansson:
       "New and updated SoC support.  Among the things new for this release
        are:
      
         - More support for the AM33xx platforms from TI
         - Tegra 124 support, and some updates to older tegra families as well
         - imx cleanups and updates across the board
         - A rename of Broadcom's Mobile platforms which were introduced as
           ARCH_BCM, and turned out to be too broad a name.  New name is
           ARCH_BCM_MOBILE.
         - A whole bunch of updates and fixes for integrator, making the
           platform code more modern and switches over to DT-only booting.
         - Support for two new Renesas shmobile chipsets.  Next up for them is
           more work on consolidation instead of introduction of new
           non-multiplatform SoCs, we're all looking forward to that!
         - Misc cleanups for older Samsung platforms, some Allwinner updates,
           etc"
      
      * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (159 commits)
        ARM: bcm281xx: Add ARCH_BCM_MOBILE to bcm config
        ARM: bcm_defconfig: Run "make savedefconfig"
        ARM: bcm281xx: Add ARCH Timers to config
        rename ARCH_BCM to ARCH_BCM_MOBILE (mach-bcm)
        ARM: vexpress: Enable platform-specific options in defconfig
        ARM: vexpress: Make defconfig work again
        ARM: sunxi: remove .init_time hooks
        ARM: imx: enable suspend for imx6sl
        ARM: imx: ensure dsm_request signal is not asserted when setting LPM
        ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter()
        ARM: imx6q: move low-power code out of clock driver
        ARM: imx: drop extern with function prototypes in common.h
        ARM: imx: reset core along with enable/disable operation
        ARM: imx: do not return from imx_cpu_die() call
        ARM: imx_v6_v7_defconfig: Select CONFIG_PROVE_LOCKING
        ARM: imx_v6_v7_defconfig: Enable LEDS_GPIO related options
        ARM: mxs_defconfig: Turn off CONFIG_DEBUG_GPIO
        ARM: imx: replace imx6q_restart() with mxc_restart()
        ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt
        ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt
        ...
      aac59e3e
    • L
      Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 21604cdc
      Linus Torvalds 提交于
      Pull ARM SoC cleanups from Olof Johansson:
       "This branch contains code cleanups, moves and removals for 3.13.
      
        Qualcomm msm targets had a bunch of code removal for legacy non-DT
        platforms.  Nomadik saw more device tree conversions and cleanup of
        old code.  Tegra has some code refactoring, etc.
      
        One longish patch series from Sebastian Hasselbarth changes the
        init_time hooks and tries to use a generic implementation for most
        platforms, since they were all doing more or less the same things.
      
        Finally the "shark" platform is removed in this release.  It's been
        abandoned for a while and nobody seems to care enough to keep it
        around.  If someone comes along and wants to resurrect it, the removal
        can easily be reverted and code brought back.
      
        Beyond this, mostly a bunch of removals of stale content across the
        board, etc"
      
      * tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (79 commits)
        ARM: gemini: convert to GENERIC_CLOCKEVENTS
        ARM: EXYNOS: remove CONFIG_MACH_EXYNOS[4, 5]_DT config options
        ARM: OMAP3: control: add API for setting IVA bootmode
        ARM: OMAP3: CM/control: move CM scratchpad save to CM driver
        ARM: OMAP3: McBSP: do not access CM register directly
        ARM: OMAP3: clock: add API to enable/disable autoidle for a single clock
        ARM: OMAP2: CM/PM: remove direct register accesses outside CM code
        MAINTAINERS: Add patterns for DTS files for AT91
        ARM: at91: remove init_machine() as default is suitable
        ARM: at91/dt: split sama5d3 peripheral definitions
        ARM: at91/dt: split sam9x5 peripheral definitions
        ARM: Remove temporary sched_clock.h header
        ARM: clps711x: Use linux/sched_clock.h
        MAINTAINERS: Add DTS files to patterns for Samsung platform
        ARM: EXYNOS: remove unnecessary header inclusions from exynos4/5 dt machine file
        ARM: tegra: fix ARCH_TEGRA_114_SOC select sort order
        clk: nomadik: fix missing __init on nomadik_src_init
        ARM: drop explicit selection of HAVE_CLK and CLKDEV_LOOKUP
        ARM: S3C64XX: Kill CONFIG_PLAT_S3C64XX
        ASoC: samsung: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support
        ...
      21604cdc
    • L
      Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · beb5bfe4
      Linus Torvalds 提交于
      Pull ARM SoC low-priority fixes from Olof Johansson:
       "A set of fixes for various platforms that weren't considered bad
        enough to include in 3.12 (nor -stable).  Mostly simple typo fixes,
        etc"
      
      * tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
        ARM: OMAP2+: irq, AM33XX add missing register check
        ARM: OMAP2+: wakeupgen: AM43x adaptation
        ARM: OMAP1: Fix a bunch of GPIO related section warnings after initdata got corrected
        ARM: dts: fix PL330 MDMA1 address in DT for Universal C210 board
        ARM: dts: Work around lack of cpufreq regulator lookup for exynos4210-origen and trats boards
        ARM: dts: Fix typo earlyprintk in exynos5440-sd5v1 and ssdk5440 boards
        ARM: dts: Correct typo in use of samsung,pin-drv for exynos5250
        ARM: rockchip: remove obsolete rockchip,config properties
        ARM: rockchip: fix wrong use of non-existent CONFIG_LOCAL_TIMERS
        ARM: mach-omap1: Fix omap1510_fpga_init_irq() implicit declarations.
        ARM: OMAP1: fix incorrect placement of __initdata tag
        ARM: OMAP: remove deprecated IRQF_DISABLED
        ARM: OMAP2+: throw the die id into the entropy pool
      beb5bfe4
    • L
      Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64 · 05ad391d
      Linus Torvalds 提交于
      Pull ARM64 update from Catalin Marinas:
       "Main features:
         - Ticket-based spinlock implementation and lockless lockref support
         - Big endian support
         - CPU hotplug support, currently for PSCI (Power State Coordination
           Interface) capable firmware
         - Virtual address space extended to 42-bit in the 64K page
           configuration (maximum VA space with 2 levels of page tables)
         - Compat (AArch32) kuser helpers updated to ARMv8 (make use of
           load-acquire/store-release instructions)
         - Code cleanup, defconfig update and minor fixes"
      
      * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (43 commits)
        ARM64: /proc/interrupts: display IPIs of online CPUs only
        arm64: locks: Remove CONFIG_GENERIC_LOCKBREAK
        arm64: KVM: vgic: byteswap GICv2 access on world switch if BE
        arm64: KVM: initialize HYP mode following the kernel endianness
        arm64: compat: Clear the IT state independent of the 32-bit ARM or Thumb-2 mode
        arm64: Use 42-bit address space with 64K pages
        arm64: module: ensure instruction is little-endian before manipulation
        arm64: defconfig: Enable CONFIG_PREEMPT by default
        arm64: fix access to preempt_count from assembly code
        arm64: move enabling of GIC before CPUs are set online
        arm64: use generic RW_DATA_SECTION macro in linker script
        arm64: Slightly improve the warning on CPU0 enable-method
        ARM64: simplify cpu_read_bootcpu_ops using OF/DT helper
        ARM64: DT: define ARM64 specific arch_match_cpu_phys_id
        arm64: allow ioremap_cache() to use existing RAM mappings
        arm64: update 32-bit kuser helpers to ARMv8
        arm64: perf: fix event number mask
        arm64: kconfig: allow CPU_BIG_ENDIAN to be selected
        arm64: Fix the endianness of arch_spinlock_t
        arm64: big-endian: write CPU holding pen address as LE
        ...
      05ad391d
    • L
      Merge tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw · 8b5baa46
      Linus Torvalds 提交于
      Pull gfs2 updates from Steven Whitehouse:
       "The main feature of interest this time is quota updates.  There are
        some clean ups and some patches to use the new generic lru list code.
      
        There is still plenty of scope for some further changes in due course -
        faster lookups of quota structures is very much on the todo list.
        Also, a start has been made towards the more tricky issue of using the
        generic lru code with glocks, but that will have to be completed in a
        subsequent merge window.
      
        The other, more minor feature, is that there have been a number of
        performance patches which relate to block allocation.  In particular
        they will improve performance when the disk is nearly full"
      
      * tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw:
        GFS2: Use generic list_lru for quota
        GFS2: Rename quota qd_lru_lock qd_lock
        GFS2: Use reflink for quota data cache
        GFS2: Use lockref for glocks
        GFS2: Protect quota sync generation
        GFS2: Inline qd_trylock into gfs2_quota_unlock
        GFS2: Make two similar quota code fragments into a function
        GFS2: Remove obsolete quota tunable
        GFS2: Move gfs2_icbit_munge into quota.c
        GFS2: Speed up starting point selection for block allocation
        GFS2: Add allocation parameters structure
        GFS2: Clean up reservation removal
        GFS2: fix dentry leaks
        GFS2: new function gfs2_rbm_incr
        GFS2: Introduce rbm field bii
        GFS2: Do not reset flags on active reservations
        GFS2: introduce bi_blocks for optimization
        GFS2: optimize rbm_from_block wrt bi_start
        GFS2: d_splice_alias() can't return error
      8b5baa46
  3. 10 11月, 2013 2 次提交
    • O
      uprobes: Fix the memory out of bound overwrite in copy_insn() · 2ded0980
      Oleg Nesterov 提交于
      1. copy_insn() doesn't look very nice, all calculations are
         confusing and it is not immediately clear why do we read
         the 2nd page first.
      
      2. The usage of inode->i_size is wrong on 32-bit machines.
      
      3. "Instruction at end of binary" logic is simply wrong, it
         doesn't handle the case when uprobe->offset > inode->i_size.
      
         In this case "bytes" overflows, and __copy_insn() writes to
         the memory outside of uprobe->arch.insn.
      
         Yes, uprobe_register() checks i_size_read(), but this file
         can be truncated after that. All i_size checks are racy, we
         do this only to catch the obvious mistakes.
      
      Change copy_insn() to call __copy_insn() in a loop, simplify
      and fix the bytes/nbytes calculations.
      
      Note: we do not care if we read extra bytes after inode->i_size
      if we got the valid page. This is fine because the task gets the
      same page after page-fault, and arch_uprobe_analyze_insn() can't
      know how many bytes were actually read anyway.
      Signed-off-by: NOleg Nesterov <oleg@redhat.com>
      2ded0980
    • O
      uprobes: Fix the wrong usage of current->utask in uprobe_copy_process() · 70d7f987
      Oleg Nesterov 提交于
      Commit aa59c53f "uprobes: Change uprobe_copy_process() to dup
      xol_area" has a stupid typo, we need to setup t->utask->vaddr but
      the code wrongly uses current->utask.
      
      Even with this bug dup_xol_work() works "in practice", but only
      because get_unmapped_area(NULL, TASK_SIZE - PAGE_SIZE) likely
      returns the same address every time.
      Signed-off-by: NOleg Nesterov <oleg@redhat.com>
      70d7f987
  4. 08 11月, 2013 14 次提交
    • L
      Merge tag 'ftrace-urgent-3.12-v2' of... · 6c86ae29
      Linus Torvalds 提交于
      Merge tag 'ftrace-urgent-3.12-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
      
      Pull perf/ftrace fix from Steven Rostedt:
       "Dave Jones's trinity program was able to enable the function tracer
        from a normal user account via the perf syscall "perf_event_open()".
        When I was able to reproduce it with trinity, I was able to track down
        exactly how it happened.
      
        I discovered that the check for whether the function tracepoint should
        be activated or not was using the "perf_paranoid_kernel()" check which
        by default, lets the user continue.  The user should not by default be
        able to enable function tracing.
      
        The fix is to use "perf_paranoid_tracepoint_raw()" which will not let
        the user enable function tracing.  This is a security fix as normal
        users should never be allowed to enable the function tracer"
      
      * tag 'ftrace-urgent-3.12-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        perf/ftrace: Fix paranoid level for enabling function tracer
      6c86ae29
    • L
      Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · 3ae423fe
      Linus Torvalds 提交于
      Pull MIPS updates from Ralf Baechle:
       - Some minor work bringing the Cobalt MIPS platforms in line with other
         MIPS platforms
       - Make vmlinux.32 and vmlinux.64 build messages less verbose
       - Always register the R4k clocksource when selected, the clock source's
         rating will decide if this or another clock source is actually going
         to be used
       - Drop support for the Cisco (formerly Scientific Atlanta) PowerTV
         platform.  There appears to be nobody left who cares and the USB
         driver went stale while waiting for years to be merged
       - Some cleanup of Loongson 2 related #ifdefery
       - Various minor cleanups
       - Major rework on all things related to tracing / ptrace on MIPS,
         including switching the MIPS ELF core dumper to regsets, enabling the
         entries for SIGSYS in struct siginfo for MIPS, enabling ftrace
         syscall trace points
       - Some more work to bring DECstation support code in line with other
         more modern code
       - Report the name of the detected CPU, not just its CP0 PrID value
       - Some more BCM 47xx and atheros ath79xx work
       - Support for compressed kernels using the XZ compression scheme
      
      * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (53 commits)
        MIPS: remove duplicate define
        MIPS: Random whitespace clean-ups
        MIPS: traps: Reformat notify_die invocations to 80 columns.
        MIPS: Print correct PC in trace dump after NMI exception
        MIPS: kernel: cpu-probe: Report CPU id during probe
        MIPS: Remove unused defines in piix4.h
        MIPS: Get rid of hard-coded values for Malta PIIX4 fixups
        MIPS: Always register R4K clock when selected
        MIPS: Loongson: Get rid of Loongson 2 #ifdefery all over arch/mips.
        MIPS: cacheops.h: Increase indentation by one tab.
        MIPS: Remove bogus BUG_ON()
        MIPS: PowerTV: Remove support code.
        MIPS: ftrace: Add support for syscall tracepoints.
        MIPS: ptrace: Switch syscall reporting to tracehook_report_syscall_entry().
        MIPS: Move audit_arch() helper function to __syscall_get_arch().
        MIPS: Enable HAVE_ARCH_TRACEHOOK.
        MIPS: Switch ELF core dumper to use regsets.
        MIPS: Implement task_user_regset_view.
        MIPS: ptrace: Use tracehook helpers.
        MIPS: O32 / 32-bit: Always copy 4 stack arguments.
        ...
      3ae423fe
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 280c84d1
      Linus Torvalds 提交于
      Pull s390 updates from Martin Schwidefsky:
       "The bulk of the patches for the 3.13 merge window.
      
        Heiko spent quite a bit of work to improve the code generation for the
        kernel.  That includes the exploitation of the interlocked-access
        facility for the atomics and bitops implementation and the improvement
        for the -march and -mtune compiler settings.
      
        Another important change is the removal of the user_mode=home option,
        user processes now always run in primary space.  The storage keys are
        not initialized at system startup any more, with that the storage key
        removal work is complete.  For the PCI support the hibernation hooks
        have been implemented.
      
        And as usual cleanup and fixes"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (62 commits)
        s390/scm_blk: fix endless loop for requests != REQ_TYPE_FS
        s390/mm,tlb: correct tlb flush on page table upgrade
        s390/mm: page_table_realloc returns failure
        s390: allow to set gcc -mtune flag
        s390/percpu: remove this_cpu_xor() implementation
        s390/vtime: correct idle time calculation
        s390/time: fix get_tod_clock_ext inline assembly
        tty/hvc_iucv: remove redundant NULL check
        s390/dasd: Write to profile data area only if it is available
        s390: convert use of typedef ctl_table to struct ctl_table
        s390/pci: cleanup function information block
        s390/pci: remove CONFIG_PCI_DEBUG dependancy
        s390/pci: message cleanup
        Update default configuration
        s390: add a couple of useful defconfigs
        s390/percpu: make use of interlocked-access facility 1 instructions
        s390/percpu: use generic percpu ops for CONFIG_32BIT
        s390/compat: make psw32_user_bits a constant value again
        s390: fix handling of runtime instrumentation psw bit
        s390: fix save and restore of the floating-point-control register
        ...
      280c84d1
    • H
      parisc: add generic 32- and 64-bit defconfigs · dce0ce46
      Helge Deller 提交于
      New defconfigs which should be able to boot on any 32/64bit machine.
      Many drivers are selected to be compiled-in to avoid the need for an
      additional initrd and still being able to boot.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      dce0ce46
    • H
      parisc: sticon - unbreak on 64bit kernel · 0219132f
      Helge Deller 提交于
      STI text console (sticon) was broken on 64bit machines with more than
      4GB RAM and this lead in some cases to a kernel crash.
      
      Since sticon uses the 32bit STI API it needs to keep pointers to memory
      below 4GB. But on a 64bit kernel some memory regions (e.g. the kernel
      stack) might be above 4GB which then may crash the kernel in the STI
      functions.
      
      Additionally sticon didn't selected the built-in framebuffer fonts by
      default. This is now fixed.
      
      On a side-note: Theoretically we could enhance the sticon driver to
      use the 64bit STI API. But - beside the fact that some machines don't
      provide a 64bit STI ROM - this would just add complexity.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      Cc: stable@vger.kernel.org # 3.8+
      0219132f
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      parisc: signal fixup - SIGBUS vs. SIGSEGV · 1f2048fd
      Helge Deller 提交于
      Clean up code to send correct signal on invalid memory accesses:
      Send SIGBUS instead of SIGSEGV for memory accesses outside of mmap'ed
      areas
      
      This fixes the mmap13 testcase from the Linux Test Project.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      1f2048fd
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      parisc: implement full version of access_ok() · 63379c13
      Helge Deller 提交于
      Up to now PA-RISC could live with a trivial version of access_ok().
      Our fault handlers can correctly handle fault cases.
      
      But testcases showed that we need a better access check else we won't
      always return correct errno failure codes to userspace.
      
      Problem showed up during 32bit userspace tests in which writev() used a
      32bit memory area and length which would then wrap around on 64bit
      kernel.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      63379c13
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      parisc: correctly display number of active CPUs · 3a7452b4
      Helge Deller 提交于
      In case we fail to power up other CPUs in a SMP system, the kernel
      currently shows a wrong number of online CPUs. This change makes the
      output more verbose on how many of the CPUs are online. Example:
      
      CPU(s): 1 out of 2 PA8800 (Mako) at 900.000000 MHz online.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      3a7452b4
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      parisc: do not count IPI calls twice · 6f0c4aa6
      Helge Deller 提交于
      The number of IPI calls is already visible as per-cpu IPI irq counters
      in/proc/cpuinfo, so let's drop this additional counting.
      
      This partly reverts:
      cd85d551 parisc: more irq statistics in /proc/interrupts
      Signed-off-by: NHelge Deller <deller@gmx.de>
      6f0c4aa6
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      parisc: make udelay() SMP-safe · f6d12eef
      Helge Deller 提交于
      Each CPU has it's own Control Register 16 (CR16) which is used as time source
      for the udelay() function. But since the CR16 registers across different CPUs
      are not synced, we need to recalculate the loop count if we get switched away
      to ensure that we really delay as much time as requested.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      f6d12eef
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      parisc: remove duplicate define · e4be260d
      Michael Opdenacker 提交于
      This patch removes a duplicate define from
      arch/parisc/math-emu/float.h
      Signed-off-by: NMichael Opdenacker <michael.opdenacker@free-electrons.com>
      Signed-off-by: NHelge Deller <deller@gmx.de>
      e4be260d
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      parisc: make "make install" not depend on vmlinux · b0756b5a
      Helge Deller 提交于
      Install targets (install, zinstall, uinstall) on parisc have a
      dependency to vmlinux. This may cause parts of the kernel to be rebuilt
      during installation. We must avoid this since this may run as root.
      Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus
      emphasized this in:
      
      http://lkml.org/lkml/2013/7/10/600
      
      So on parisc and maybe other archs we need the same as for x86:
      
      1648e4f8 x86, kbuild: make "make install" not depend on vmlinux
      
      This parisc patch was inspired by:
      
      19514fc6 arm, kbuild: make "make install" not depend on vmlinux
      Signed-off-by: NHelge Deller <deller@gmx.de>
      b0756b5a
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      parisc: add kernel audit feature · 527973c8
      Helge Deller 提交于
      Implement missing functions for parisc to provide kernel audit feature.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      527973c8
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      parisc: provide macro to create exception table entries · 61dbbaeb
      Helge Deller 提交于
      Provide a macro ASM_EXCEPTIONTABLE_ENTRY() to create exception table
      entries and convert all open-coded places to use that macro.
      
      This patch is a first step toward creating a exception table which only
      holds 32bit pointers even on a 64bit kernel. That way in my own kernel
      I was able to reduce the in-kernel exception table from 44kB to 22kB.
      Signed-off-by: NHelge Deller <deller@gmx.de>
      61dbbaeb