- 04 Oct, 2012 1 commit
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Vince Weaver authored
The following patch adds perf_event support for the Xeon-Phi PMU, as documented in the "Intel Xeon Phi Coprocessor (codename: Knights Corner) Performance Monitoring Units" manual. Even though it is a co-processor, a Phi runs a full Linux environment and can support performance counters. This is just barebones support, it does not add support for interesting new features such as the SPFLT intruction that allows starting/stopping events without entering the kernel. The PMU internally is just like that of an original Pentium, but a "P6-like" MSR interface is provided. The interface is different enough from a real P6 that it's not easy (or practical) to re-use the code in perf_event_p6.c Acked-by: Lawrence F Meadows <lawrence.f.meadows@intel.com> Acked-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Vince Weaver <vincent.weaver@maine.edu> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: eranian@gmail.com Cc: Lawrence F <lawrence.f.meadows@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1209261405320.8398@vincent-weaver-1.um.maine.eduSigned-off-by: Ingo Molnar <mingo@kernel.org>
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- 01 Oct, 2012 36 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/microcode changes from Ingo Molnar: "The biggest changes are to AMD microcode patching: add code for caching all microcode patches which belong to the current family on which we're running, in the kernel. We look up the patch needed for each core from the cache at patch-application time instead of holding a single patch per-system" * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, microcode, AMD: Fix use after free in free_cache() x86, microcode, AMD: Rewrite patch application procedure x86, microcode, AMD: Add a small, per-family patches cache x86, microcode, AMD: Add reverse equiv table search x86, microcode: Add a refresh firmware flag to ->request_microcode_fw x86, microcode, AMD: Read CPUID(1).EAX on the correct cpu x86, microcode, AMD: Check before applying a patch x86, microcode, AMD: Remove useless get_ucode_data wrapper x86, microcode: Straighten out Kconfig text x86, microcode: Cleanup cpu hotplug notifier callback x86, microcode: Drop uci->mc check on resume path x86, microcode: Save an indentation level in reload_for_cpu
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/platform changes from Ingo Molnar: "This cleans up some Xen-induced pagetable init code uglies, by generalizing new platform callbacks and state: x86_init.paging.*" * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Document x86_init.paging.pagetable_init() x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done() x86: Move paging_init() call to x86_init.paging.pagetable_init() x86: Rename pagetable_setup_start() to pagetable_init() x86: Remove base argument from x86_init.paging.pagetable_setup_start
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/mm changes from Ingo Molnar: "The biggest change is new TLB partial flushing code for AMD CPUs. (The v3.6 kernel had the Intel CPU side code, see commits e0ba94f1..effee4b9.) There's also various other refinements around the TLB flush code" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Distinguish TLB shootdown interrupts from other functions call interrupts x86/mm: Fix range check in tlbflush debugfs interface x86, cpu: Preset default tlb_flushall_shift on AMD x86, cpu: Add AMD TLB size detection x86, cpu: Push TLB detection CPUID check down x86, cpu: Fixup tlb_flushall_shift formatting
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/MCE update from Ingo Molnar: "Various MCE robustness enhancements. One of the changes adds CMCI (Corrected Machine Check Interrupt) poll mode on Intel Nehalem+ CPUs, which mode is automatically entered when the rate of messages is too high - and exited once the storm is over. An MCE events storm will roughly look like this: [ 5342.740616] mce: [Hardware Error]: Machine check events logged [ 5342.746501] mce: [Hardware Error]: Machine check events logged [ 5342.757971] CMCI storm detected: switching to poll mode [ 5372.674957] CMCI storm subsided: switching to interrupt mode This should make such events more survivable" * 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Provide boot argument to honour bios-set CMCI threshold x86, MCE: Remove unused defines x86, mce: Enable MCA support by default x86/mce: Add CMCI poll mode x86/mce: Make cmci_discover() quiet x86: mce: Remove the frozen cases in the hotplug code x86: mce: Split timer init x86: mce: Serialize mce injection x86: mce: Disable preemption when calling raise_local()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/fpu update from Ingo Molnar: "The biggest change is the addition of the non-lazy (eager) FPU saving support model and enabling it on CPUs with optimized xsaveopt/xrstor FPU state saving instructions. There are also various Sparse fixes" Fix up trivial add-add conflict in arch/x86/kernel/traps.c * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, kvm: fix kvm's usage of kernel_fpu_begin/end() x86, fpu: remove cpu_has_xmm check in the fx_finit() x86, fpu: make eagerfpu= boot param tri-state x86, fpu: enable eagerfpu by default for xsaveopt x86, fpu: decouple non-lazy/eager fpu restore from xsave x86, fpu: use non-lazy fpu restore for processors supporting xsave lguest, x86: handle guest TS bit for lazy/non-lazy fpu host models x86, fpu: always use kernel_fpu_begin/end() for in-kernel FPU usage x86, kvm: use kernel_fpu_begin/end() in kvm_load/put_guest_fpu() x86, fpu: remove unnecessary user_fpu_end() in save_xstate_sig() x86, fpu: drop_fpu() before restoring new state from sigframe x86, fpu: Unify signal handling code paths for x86 and x86_64 kernels x86, fpu: Consolidate inline asm routines for saving/restoring fpu state x86, signal: Cleanup ifdefs and is_ia32, is_x32
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/EFI changes from Ingo Molnar: "EFI loader robustness enhancements plus smaller fixes" * 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: efi: Fix the ACPI BGRT driver for images located in EFI boot services memory efi: Add a function to look up existing IO memory mappings efi: Defer freeing boot services memory until after ACPI init x86, EFI: Calculate the EFI framebuffer size instead of trusting the firmware efifb: Skip DMI checks if the bootloader knows what it's doing efi: initialize efi.runtime_version to make query_variable_info/update_capsule workable efi: Build EFI stub with EFI-appropriate options X86: Improve GOP detection in the EFI boot stub
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 debug update from Ingo Molnar: "Various small enhancements" * 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/debug: Dump family, model, stepping of the boot CPU x86/iommu: Use NULL instead of plain 0 for __IOMMU_INIT x86/iommu: Drop duplicate const in __IOMMU_INIT x86/fpu/xsave: Keep __user annotation in casts x86/pci/probe_roms: Add missing __iomem annotation to pci_map_biosrom() x86/signals: ia32_signal.c: add __user casts to fix sparse warnings x86/vdso: Add __user annotation to VDSO32_SYMBOL x86: Fix __user annotations in asm/sys_ia32.h
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Linus Torvalds authored
Merge branches 'x86-cpu-for-linus' and 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86/cpu and x86/cpufeature from Ingo Molnar: "One tiny cleanup, and prepare for SMAP (Supervisor Mode Access Prevention) support on x86" * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Remove the useless branch in c_start() * 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, cpufeature: Add feature bit for SMAP
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/cleanups from Ingo Molnar: "Smaller cleanups" * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: arch/x86: Remove unecessary semicolons x86, boot: Remove obsolete and unused constant RAMDISK
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/build changes from Ingo Molnar: "defconfig and kconfig cleanups/fixes" * 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/Kconfig: Clean up Kconfig defaults x86/Kconfig: Turn off DEBUG_NX_TEST module in defconfigs x86/Kconfig: Turn off CONFIG_BLK_DEV_RAM x86/Kconfig: Disable CONFIG_CRC_T10DIF in defconfigs x86/Kconfig: Switch to ext4 in defconfigs x86/Kconfig: Update defconfigs to current results of "make savedefconfig"
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/asm changes from Ingo Molnar: "The one change that stands out is the alternatives patching change that prevents us from ever patching back instructions from SMP to UP: this simplifies things and speeds up CPU hotplug. Other than that it's smaller fixes, cleanups and improvements." * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Unspaghettize do_trap() x86_64: Work around old GAS bug x86: Use REP BSF unconditionally x86: Prefer TZCNT over BFS x86/64: Adjust types of temporaries used by ffs()/fls()/fls64() x86: Drop unnecessary kernel_eflags variable on 64-bit x86/smp: Don't ever patch back to UP if we unplug cpus
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86/apic changes from Ingo Molnar: "Smaller fixes and cleanups" * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/api: Rename mp_register_lapic in a comment x86/irq/i8259: Fix incorrect comment x86: dt: Use linear irq domain for ioapic(s)
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer changes from Ingo Molnar: "Timer enhancements, generalizations and cleanups from Tejun Heo, in preparation for workqueue facility enhancements." * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: timer: Implement TIMER_IRQSAFE timer: Clean up timer initializers timer: Relocate declarations of init_timer_on_stack_key() timer: Generalize timer->base flags handling
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler changes from Ingo Molnar: "Continued quest to clean up and enhance the cputime code by Frederic Weisbecker, in preparation for future tickless kernel features. Other than that, smallish changes." Fix up trivial conflicts due to additions next to each other in arch/{x86/}Kconfig * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) cputime: Make finegrained irqtime accounting generally available cputime: Gather time/stats accounting config options into a single menu ia64: Reuse system and user vtime accounting functions on task switch ia64: Consolidate user vtime accounting vtime: Consolidate system/idle context detection cputime: Use a proper subsystem naming for vtime related APIs sched: cpu_power: enable ARCH_POWER sched/nohz: Clean up select_nohz_load_balancer() sched: Fix load avg vs. cpu-hotplug sched: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW sched: Fix nohz_idle_balance() sched: Remove useless code in yield_to() sched: Add time unit suffix to sched sysctl knobs sched/debug: Limit sd->*_idx range on sysctl sched: Remove AFFINE_WAKEUPS feature flag s390: Remove leftover account_tick_vtime() header cputime: Consolidate vtime handling on context switch sched: Move cputime code to its own file cputime: Generalize CONFIG_VIRT_CPU_ACCOUNTING tile: Remove SD_PREFER_LOCAL leftover ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fix from Ingo Molnar: "Leftover perf/urgent fix from the v3.6 cycle" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix typo in uncore_pmu_to_box
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf update from Ingo Molnar: "Lots of changes in this cycle as well, with hundreds of commits from over 30 contributors. Most of the activity was on the tooling side. Higher level changes: - New 'perf kvm' analysis tool, from Xiao Guangrong. - New 'perf trace' system-wide tracing tool - uprobes fixes + cleanups from Oleg Nesterov. - Lots of patches to make perf build on Android out of box, from Irina Tirdea - Extend ftrace function tracing utility to be more dynamic for its users. It allows for data passing to the callback functions, as well as reading regs as if a breakpoint were to trigger at function entry. The main goal of this patch series was to allow kprobes to use ftrace as an optimized probe point when a probe is placed on an ftrace nop. With lots of help from Masami Hiramatsu, and going through lots of iterations, we finally came up with a good solution. - Add cpumask for uncore pmu, use it in 'stat', from Yan, Zheng. - Various tracing updates from Steve Rostedt - Clean up and improve 'perf sched' performance by elliminating lots of needless calls to libtraceevent. - Event group parsing support, from Jiri Olsa - UI/gtk refactorings and improvements from Namhyung Kim - Add support for non-tracepoint events in perf script python, from Feng Tang - Add --symbols to 'script', similar to the one in 'report', from Feng Tang. Infrastructure enhancements and fixes: - Convert the trace builtins to use the growing evsel/evlist tracepoint infrastructure, removing several open coded constructs like switch like series of strcmp to dispatch events, etc. Basically what had already been showcased in 'perf sched'. - Add evsel constructor for tracepoints, that uses libtraceevent just to parse the /format events file, use it in a new 'perf test' to make sure the libtraceevent format parsing regressions can be more readily caught. - Some strange errors were happening in some builds, but not on the next, reported by several people, problem was some parser related files, generated during the build, didn't had proper make deps, fix from Eric Sandeen. - Introduce struct and cache information about the environment where a perf.data file was captured, from Namhyung Kim. - Fix handling of unresolved samples when --symbols is used in 'report', from Feng Tang. - Add union member access support to 'probe', from Hyeoncheol Lee. - Fixups to die() removal, from Namhyung Kim. - Render fixes for the TUI, from Namhyung Kim. - Don't enable annotation in non symbolic view, from Namhyung Kim. - Fix pipe mode in 'report', from Namhyung Kim. - Move related stats code from stat to util/, will be used by the 'stat' kvm tool, from Xiao Guangrong. - Remove die()/exit() calls from several tools. - Resolve vdso callchains, from Jiri Olsa - Don't pass const char pointers to basename, so that we can unconditionally use libgen.h and thus avoid ifdef BIONIC lines, from David Ahern - Refactor hist formatting so that it can be reused with the GTK browser, From Namhyung Kim - Fix build for another rbtree.c change, from Adrian Hunter. - Make 'perf diff' command work with evsel hists, from Jiri Olsa. - Use the only field_sep var that is set up: symbol_conf.field_sep, fix from Jiri Olsa. - .gitignore compiled python binaries, from Namhyung Kim. - Get rid of die() in more libtraceevent places, from Namhyung Kim. - Rename libtraceevent 'private' struct member to 'priv' so that it works in C++, from Steven Rostedt - Remove lots of exit()/die() calls from tools so that the main perf exit routine can take place, from David Ahern - Fix x86 build on x86-64, from David Ahern. - {int,str,rb}list fixes from Suzuki K Poulose - perf.data header fixes from Namhyung Kim - Allow user to indicate objdump path, needed in cross environments, from Maciek Borzecki - Fix hardware cache event name generation, fix from Jiri Olsa - Add round trip test for sw, hw and cache event names, catching the problem Jiri fixed, after Jiri's patch, the test passes successfully. - Clean target should do clean for lib/traceevent too, fix from David Ahern - Check the right variable for allocation failure, fix from Namhyung Kim - Set up evsel->tp_format regardless of evsel->name being set already, fix from Namhyung Kim - Oprofile fixes from Robert Richter. - Remove perf_event_attr needless version inflation, from Jiri Olsa - Introduce libtraceevent strerror like error reporting facility, from Namhyung Kim - Add pmu mappings to perf.data header and use event names from cmd line, from Robert Richter - Fix include order for bison/flex-generated C files, from Ben Hutchings - Build fixes and documentation corrections from David Ahern - Assorted cleanups from Robert Richter - Let O= makes handle relative paths, from Steven Rostedt - perf script python fixes, from Feng Tang. - Initial bash completion support, from Frederic Weisbecker - Allow building without libelf, from Namhyung Kim. - Support DWARF CFI based unwind to have callchains when %bp based unwinding is not possible, from Jiri Olsa. - Symbol resolution fixes, while fixing support PPC64 files with an .opt ELF section was the end goal, several fixes for code that handles all architectures and cleanups are included, from Cody Schafer. - Assorted fixes for Documentation and build in 32 bit, from Robert Richter - Cache the libtraceevent event_format associated to each evsel early, so that we avoid relookups, i.e. calling pevent_find_event repeatedly when processing tracepoint events. [ This is to reduce the surface contact with libtraceevents and make clear what is that the perf tools needs from that lib: so far parsing the common and per event fields. ] - Don't stop the build if the audit libraries are not installed, fix from Namhyung Kim. - Fix bfd.h/libbfd detection with recent binutils, from Markus Trippelsdorf. - Improve warning message when libunwind devel packages not present, from Jiri Olsa" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (282 commits) perf trace: Add aliases for some syscalls perf probe: Print an enum type variable in "enum variable-name" format when showing accessible variables perf tools: Check libaudit availability for perf-trace builtin perf hists: Add missing period_* fields when collapsing a hist entry perf trace: New tool perf evsel: Export the event_format constructor perf evsel: Introduce rawptr() method perf tools: Use perf_evsel__newtp in the event parser perf evsel: The tracepoint constructor should store sys:name perf evlist: Introduce set_filter() method perf evlist: Renane set_filters method to apply_filters perf test: Add test to check we correctly parse and match syscall open parms perf evsel: Handle endianity in intval method perf evsel: Know if byte swap is needed perf tools: Allow handling a NULL cpu_map as meaning "all cpus" perf evsel: Improve tracepoint constructor setup tools lib traceevent: Fix error path on pevent_parse_event perf test: Fix build failure trace: Move trace event enable from fs_initcall to core_initcall tracing: Add an option for disabling markers ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull trivial irq core update from Ingo Molnar: "Two symbol exports for modular irq-chip drivers" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Export dummy_irq_chip genirq: Export irq_set_chip_and_handler_name()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull core locking changes from Ingo Molnar: "It includes a lockdep improvement plus a spinlock inlining Kconfig cleanup." * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking: Adjust spin lock inlining Kconfig options lockdep: Check if nested lock is actually held
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull core kernel fixes from Ingo Molnar: "This is a complex task_work series from Oleg that fixes the bug that this VFS commit tried to fix: d35abdb2 hold task_lock around checks in keyctl but solves the problem without the lockup regression that d35abdb2 introduced in v3.6. This series came late in v3.6 and I did not feel confident about it so late in the cycle. Might be worth backporting to -stable if it proves itself upstream." * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: task_work: Simplify the usage in ptrace_notify() and get_signal_to_deliver() task_work: Revert "hold task_lock around checks in keyctl" task_work: task_work_add() should not succeed after exit_task_work() task_work: Make task_work_add() lockless
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull RCU changes from Ingo Molnar: 0. 'idle RCU': Adds RCU APIs that allow non-idle tasks to enter RCU idle mode and provides x86 code to make use of them, allowing RCU to treat user-mode execution as an extended quiescent state when the new RCU_USER_QS kernel configuration parameter is specified. (Work is in progress to port this to a few other architectures, but is not part of this series.) 1. A fix for a latent bug that has been in RCU ever since the addition of CPU stall warnings. This bug results in false-positive stall warnings, but thus far only on embedded systems with severely cut-down userspace configurations. 2. Further reductions in latency spikes for huge systems, along with additional boot-time adaptation to the actual hardware. This is a large change, as it moves RCU grace-period initialization and cleanup, along with quiescent-state forcing, from softirq to a kthread. However, it appears to be in quite good shape (famous last words). 3. Updates to documentation and rcutorture, the latter category including keeping statistics on CPU-hotplug latencies and fixing some initialization-time races. 4. CPU-hotplug fixes and improvements. 5. Idle-loop fixes that were omitted on an earlier submission. 6. Miscellaneous fixes and improvements In certain RCU configurations new kernel threads will show up (rcu_bh, rcu_sched), showing RCU processing overhead. * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (90 commits) rcu: Apply micro-optimization and int/bool fixes to RCU's idle handling rcu: Userspace RCU extended QS selftest x86: Exit RCU extended QS on notify resume x86: Use the new schedule_user API on userspace preemption rcu: Exit RCU extended QS on user preemption rcu: Exit RCU extended QS on kernel preemption after irq/exception x86: Exception hooks for userspace RCU extended QS x86: Unspaghettize do_general_protection() x86: Syscall hooks for userspace RCU extended QS rcu: Switch task's syscall hooks on context switch rcu: Ignore userspace extended quiescent state by default rcu: Allow rcu_user_enter()/exit() to nest rcu: Settle config for userspace extended quiescent state rcu: Make RCU_FAST_NO_HZ handle adaptive ticks rcu: New rcu_user_enter_after_irq() and rcu_user_exit_after_irq() APIs rcu: New rcu_user_enter() and rcu_user_exit() APIs ia64: Add missing RCU idle APIs on idle loop xtensa: Add missing RCU idle APIs on idle loop score: Add missing RCU idle APIs on idle loop parisc: Add missing RCU idle APIs on idle loop ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktestLinus Torvalds authored
Pull ktest fix from Steven Rostedt: "ktest has one fix needed for this merge window - fix parsing of ELSE IF in reading config file" * tag 'ktest-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Fix ELSE IF statements
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Linus Torvalds authored
Merge tag 'localmodconfig-v3.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig Pull localmodconfig fixes from Steven Rostedt: "Bill Pemberton added some changes to make streamline-config.pl work again as a stand-alone tool (outside of make localmodconfig). Also, he added a couple of updates to make the code be more "Perl proper". Added last minute fix to localyesconfig, that was the same as localmodconfig since v3.2, due to a change in the makefiles." * tag 'localmodconfig-v3.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-kconfig: localmodconfig: Fix localyesconfig to set to 'y' not 'm' localmodconfig: Use my variable for loop in streamline_config.pl localmodconfig: Use 3 parameter open in streamline_config.pl localmodconfig: Rework find_config in streamline_config.pl localmodconfig: Set default value for ksource in streamline_config.pl
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Yuta Ando authored
The kbuild target 'localyesconfig' has been same as 'localmodconfig' since the commit 50bce3e8 "kconfig/streamline_config.pl: merge local{mod,yes}config". The commit expects this script generates different configure depending on target, but it was not yet implemented. So I added code that sets to 'yes' when target is 'localyesconfig'. Link: http://lkml.kernel.org/r/1349101470-12243-1-git-send-email-yuta.and@gmail.com Cc: stable@vger.kernel.org # v3.2 Cc: linux-kbuild@vger.kernel.org Signed-off-by: Yuta Ando <yuta.and@gmail.com> Signed-off-by: Steven Rostedt <rostedt@rostedt.homelinux.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
Pull HID updates from Jiri Kosina: 1) Patchset from Henrik Rydberg which substantially reduces irqsoff latency for all input devices. In addition to that, Henrik reworked multitouch handling in order to reduce runtime memory consumption. This patchset touches code in Input subsystem as well. All the changes have been Acked by Dmitry, and we agreed to do it this way due to inter-dependencies between the patchset and subsequent changes in HID subsystem. 2) Rework, clenaups and a lot of fixes to picolcd driver by Bruno Prémont. 3) Core report descriptor handling fix which fixes resume issue on some devices, by Kevin Daughtridge 4) hidraw fixes by Alexey Khoroshilov and Ratan Nalumasu 5) wiimote driver now supports balance board, by David Herrmann. 6) Other smaller fixes and new device id additions all over the place. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (79 commits) HID: hidraw: don't deallocate memory when it is in use HID: picoLCD: optimize for inactive debugfs HID: multitouch: add support for GeneralTouch multi-touchscreen HID: Add support for Sony PS3 BD Remote Control HID: keep dev_rdesc unmodified and use it for comparisons HID: lg4ff: Minor coding style fixes in lg4ff and hid-lg HID: hid-lg4ff: Set absolute axes parametes on DFP HID: hid-lg4ff: Adjust X axis input value accordingly to selected range. HID: hid-lg4ff: Minor code cleanup to improve readability HID: ntrig: change default value of logical/physical width/height to 1 HID: picoLCD: bounds check in dump_buff_as_hex() Input: bcm5974 - Convert to MT-B Input: bcm5974 - Drop the logical dimensions Input: bcm5974 - Preparatory renames Input: bcm5974 - only setup button urb for TYPE1 devices HID: hid-multitouch: Add Flatfrog support HID: hid-multitouch: Fix contact count on 3M panels HID: hid-multitouch: Remove the redundant touch state HID: hid-multitouch: Simplify setup and frame synchronization HID: Allow more fields in the hid report ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivialLinus Torvalds authored
Pull the trivial tree from Jiri Kosina: "Tiny usual fixes all over the place" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits) doc: fix old config name of kprobetrace fs/fs-writeback.c: cleanup riteback_sb_inodes kerneldoc btrfs: fix the commment for the action flags in delayed-ref.h btrfs: fix trivial typo for the comment of BTRFS_FREE_INO_OBJECTID vfs: fix kerneldoc for generic_fh_to_parent() treewide: fix comment/printk/variable typos ipr: fix small coding style issues doc: fix broken utf8 encoding nfs: comment fix platform/x86: fix asus_laptop.wled_type module parameter mfd: printk/comment fixes doc: getdelays.c: remember to close() socket on error in create_nl_socket() doc: aliasing-test: close fd on write error mmc: fix comment typos dma: fix comments spi: fix comment/printk typos in spi Coccinelle: fix typo in memdup_user.cocci tmiofb: missing NULL pointer checks tools: perf: Fix typo in tools/perf tools/testing: fix comment / output typos ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulatorLinus Torvalds authored
Pull regulator updates from Mark Brown: - Support for putting regulators into bypass mode where they simply switch their input to the output (mainly used for low power retention). - A new API for setting voltages based on a voltage plus tolerance rather than an explicit voltage range. - Lots of cleanups and API updates from Axel Lin. - New driver for MAX8907. * tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (71 commits) regulator: arizona-ldo: Remove top voltage regulator: tps6586x: remove regulator-compatible from DT docs regulator: tps65217.txt: remove regulator-compatible from DT docs regulator: deprecate regulator-compatible DT property regulator: fan53555: remove vsel_max not used regulator: aat2870: Don't explicitly initialise the first field extcon: arizona: Use bypass mode for MICVDD regulator: wm831x-ldo: Add bypass support regulator: arizona-micsupp: Support get/set bypass regulator: arizona-ldo: Support get/set bypass regulator: core: Provide regmap get/set bypass operations regulator: core: Support bypass mode regulator: Fairchild fan53555 support regulator: twl: Remove another unused variable warning regulator: core: Try using the parent device for the default regmap regulator: core: Fast path non-deferred disables regulator: core: Report microvolts in sysfs even with only list_voltage() regulator: tps6586x: add support for SYS rail regulator: lp872x: remove unnecessary function regulator: lp872x: fix NULL pointer access problem ...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmapLinus Torvalds authored
Pull regmap updates from Mark Brown: "A quiet release for the regmap core, essentially all the activity is in the shared interrupt controller which is being more and more widely used and has been enhanced to support a wider range of masking types and wake handling methods, plus integration with runtime PM for devices making aggressive use of that." * tag 'regmap-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: no need primary handler for nested irq regmap: irq: Add mask invert flag for enable register mfd: wm8994: Flag the interrupt block as requiring runtime PM be enabled regmap: irq: Enable devices for runtime PM while handling interrupts regmap: irq: initialize all irqs to wake disabled regmap: set MASK_ON_SUSPEND/SKIP_SET_WAKE if no wake_base regmap: name irq_chip based on regmap_irq_chip's name regmap: store irq_chip inside regmap_irq_chip_data regmap: irq: Only update mask bits when doing initial mask regmap: fix some error messages to take account of irq_reg_stride regmap: Don't lock in regmap_reinit_cache()
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git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmwLinus Torvalds authored
Pull GFS2 updates from Steven Whitehouse: "The major feature this time is the "rbm" conversion in the resource group code. The new struct gfs2_rbm specifies the location of an allocatable block in (resource group, bitmap, offset) form. There are a number of added helper functions, and later patches then rewrite some of the resource group code in terms of this new structure. Not only does this give us a nice code clean up, but it also removes some of the previous restrictions where extents could not cross bitmap boundaries, for example. In addition to that, there are a few bug fixes and clean ups, but the rbm work is by far the majority of this patch set in terms of number of changed lines." * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw: (27 commits) GFS2: Write out dirty inode metadata in delayed deletes GFS2: fix s_writers.counter imbalance in gfs2_ail_empty_gl GFS2: Fix infinite loop in rbm_find GFS2: Consolidate free block searching functions GFS2: Get rid of I_MUTEX_QUOTA usage GFS2: Stop block extents at the end of bitmaps GFS2: Fix unclaimed_blocks() wrapping bug and clean up GFS2: Improve block reservation tracing GFS2: Fall back to ignoring reservations, if there are no other blocks left GFS2: Fix ->show_options() for statfs slow GFS2: Use rbm for gfs2_setbit() GFS2: Use rbm for gfs2_testbit() GFS2: Eliminate unnecessary check for state > 3 in bitfit GFS2: Eliminate redundant calls to may_grant GFS2: Combine functions gfs2_glock_dq_wait and wait_on_demote GFS2: Combine functions gfs2_glock_wait and wait_on_holder GFS2: inline __gfs2_glock_schedule_for_reclaim GFS2: change function gfs2_direct_IO to use a normal gfs2_glock_dq GFS2: rbm code cleanup GFS2: Fix case where reservation finished at end of rgrp ...
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Jiri Kosina authored
Conflicts: drivers/hid/hid-multitouch.c
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Jiri Kosina authored
Conflicts: drivers/hid/usbhid/hid-quirks.c
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Jiri Kosina authored
Merge branches 'from-henrik', 'hidraw', 'logitech', 'picolcd', 'ps3', 'uclogic', 'wacom' and 'wiimote' into for-linus
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Ratan Nalumasu authored
When a device is unplugged, wait for all processes that have opened the device to close before deallocating the device. Signed-off-by: Ratan Nalumasu <ratan@google.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Bruno Prémont authored
Matthieu CASTET adjusted picolcd_debug_out_report() to only operate when there is an active listener on debugfs for events. His change got lost while splitting hid_picolcd.c, restore it. Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Xianhan Yu authored
Fix the touch-up no response problem on GeneralTouch twofingers touchscreen and modify the driver for new GeneralTouch PWT touchscreen. Signed-off-by: Xianhan Yu <aroundight77@gmail.com> Reviewed-by Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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David Dillow authored
The Sony PS3 Blue-ray Disc Remote Control used to be supported by the BlueZ project's user space, but the code that handled it was recently removed as its functionality conflicted with a real HSP implementation and the mapping was thought to be better handled in the kernel. This is a port of the mapping logic from the fakehid driver by Marcel Holtmann to the in-kernel HID layer. We also add support for the Logitech Harmony Adapter for PS3, which emulates the BD Remote. Signed-off-by: David Dillow <dave@thedillows.org> Signed-off-by: Antonio Ospite <ospite@studenti.unina.it> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Kevin Daughtridge authored
The dev_rdesc member of the hid_device structure is meant to store the original report descriptor received from the device, but it is currently passed to any report_fixup method before it is copied to the rdesc member. This patch uses a temporary buffer to shield dev_rdesc from the side effects of many HID drivers' report_fixup implementations. usbhid's hid_post_reset checks the report descriptor currently returned by the device against a descriptor that may have been modified by a driver's report_fixup method. That leaves some devices nonfunctional after a resume, with a "reset_resume error 1" reported. This patch checks the new descriptor against the unmodified dev_rdesc instead and uses the original, instead of modified, report size. BugLink: http://bugs.launchpad.net/bugs/1049623Signed-off-by: Kevin Daughtridge <kevin@kdau.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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- 30 Sep, 2012 2 commits
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Linus Torvalds authored
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Miklos Szeredi authored
IBM reported a deadlock in select_parent(). This was found to be caused by taking rename_lock when already locked when restarting the tree traversal. There are two cases when the traversal needs to be restarted: 1) concurrent d_move(); this can only happen when not already locked, since taking rename_lock protects against concurrent d_move(). 2) racing with final d_put() on child just at the moment of ascending to parent; rename_lock doesn't protect against this rare race, so it can happen when already locked. Because of case 2, we need to be able to handle restarting the traversal when rename_lock is already held. This patch fixes all three callers of try_to_ascend(). IBM reported that the deadlock is gone with this patch. [ I rewrote the patch to be smaller and just do the "goto again" if the lock was already held, but credit goes to Miklos for the real work. - Linus ] Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 29 Sep, 2012 1 commit
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Josh Triplett authored
The ACPI BGRT driver accesses the BIOS logo image when it initializes. However, ACPI 5.0 (which introduces the BGRT) recommends putting the logo image in EFI boot services memory, so that the OS can reclaim that memory. Production systems follow this recommendation, breaking the ACPI BGRT driver. Move the bulk of the BGRT code to run during a new EFI late initialization phase, which occurs after switching EFI to virtual mode, and after initializing ACPI, but before freeing boot services memory. Copy the BIOS logo image to kernel memory at that point, and make it accessible to the BGRT driver. Rework the existing ACPI BGRT driver to act as a simple wrapper exposing that image (and the properties from the BGRT) via sysfs. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Link: http://lkml.kernel.org/r/93ce9f823f1c1f3bb88bdd662cce08eee7a17f5d.1348876882.git.josh@joshtriplett.orgSigned-off-by: H. Peter Anvin <hpa@linux.intel.com>
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