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2015-07-04Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds53-399/+872
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "This tree includes an x86 PMU scheduling fix, but most changes are late breaking tooling fixes and updates: User visible fixes: - Create config.detected into OUTPUT directory, fixing parallel builds sharing the same source directory (Aaro Kiskinen) - Allow to specify custom linker command, fixing some MIPS64 builds. (Aaro Kiskinen) - Fix to show proper convergence stats in 'perf bench numa' (Srikar Dronamraju) User visible changes: - Validate syscall list passed via -e argument to 'perf trace'. (Arnaldo Carvalho de Melo) - Introduce 'perf stat --per-thread' (Jiri Olsa) - Check access permission for --kallsyms and --vmlinux (Li Zhang) - Move toggling event logic from 'perf top' and into hists browser, allowing freeze/unfreeze with event lists with more than one entry (Namhyung Kim) - Add missing newlines when dumping PERF_RECORD_FINISHED_ROUND and showing the Aggregated stats in 'perf report -D' (Adrian Hunter) Infrastructure fixes: - Add missing break for PERF_RECORD_ITRACE_START, which caused those events samples to be parsed as well as PERF_RECORD_LOST_SAMPLES. ITRACE_START only appears when Intel PT or BTS are present, so.. (Jiri Olsa) - Call the perf_session destructor when bailing out in the inject, kmem, report, kvm and mem tools (Taeung Song) Infrastructure changes: - Move stuff out of 'perf stat' and into the lib for further use (Jiri Olsa) - Reference count the cpu_map and thread_map classes (Jiri Olsa) - Set evsel->{cpus,threads} from the evlist, if not set, allowing the generalization of some 'perf stat' functions that previously were accessing private static evlist variable (Jiri Olsa) - Delete an unnecessary check before the calling free_event_desc() (Markus Elfring) - Allow auxtrace data alignment (Adrian Hunter) - Allow events with dot (Andi Kleen) - Fix failure to 'perf probe' events on arm (He Kuang) - Add testing for Makefile.perf (Jiri Olsa) - Add test for make install with prefix (Jiri Olsa) - Fix single target build dependency check (Jiri Olsa) - Access thread_map entries via accessors, prep patch to hold more info per entry, for ongoing 'perf stat --per-thread' work (Jiri Olsa) - Use __weak definition from compiler.h (Sukadev Bhattiprolu) - Split perf_pmu__new_alias() (Sukadev Bhattiprolu)" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) perf tools: Allow to specify custom linker command perf tools: Create config.detected into OUTPUT directory perf mem: Fill in the missing session freeing after an error occurs perf kvm: Fill in the missing session freeing after an error occurs perf report: Fill in the missing session freeing after an error occurs perf kmem: Fill in the missing session freeing after an error occurs perf inject: Fill in the missing session freeing after an error occurs perf tools: Add missing break for PERF_RECORD_ITRACE_START perf/x86: Fix 'active_events' imbalance perf symbols: Check access permission when reading symbol files perf stat: Introduce --per-thread option perf stat: Introduce print_counters function perf stat: Using init_stats instead of memset perf stat: Rename print_interval to process_interval perf stat: Remove perf_evsel__read_cb function perf stat: Move perf_stat initialization counter process code perf stat: Move zero_per_pkg into counter process code perf stat: Separate counters reading and processing perf stat: Introduce read_counters function perf stat: Introduce perf_evsel__read function ...
2015-07-03Merge tag 'acpica-4.2-rc1' of ↵Linus Torvalds8-68/+87
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPICA updates from Rafael Wysocki: "Additional ACPICA material for v4.2-rc1 This will update the ACPICA code in the kernel to upstream revision 20150619 (a bug-fix release mostly including stable-candidate fixes) and restore an earlier ACPICA commit that had to be reverted due to a regression introduced by it (the regression is addressed by blacklisting the only known system affected by it to date). The only new feature added by this update is the support for overriding objects in the ACPI namespace and a new ACPI table that can be used for that called the Override System Definition Table (OSDT). That should allow us to "patch" the ACPI namespace built from incomplete or incorrect ACPI System Definition tables (DSDT, SSDT) during system startup without the need to provide replacements for all of those tables in the future. Specifics: - Fix system resume problems related to 32-bit and 64-bit versions of the Firmware ACPI Control Structure (FACS) in the firmare (Lv Zheng) - Fix double initialization of the FACS (Lv Zheng) - Add _CLS object processing code to ACPICA (Suravee Suthikulpanit) - Add support for the (currently missing) new GIC version field in the Multiple APIC Description Table (MADT) (Hanjun Guo) - Add support for overriding objects in the ACPI namespace to ACPICA and OSDT support (Lv Zheng, Bob Moore, Zhang Rui) - Updates related to the TCPA and TPM2 ACPI tables (Bob Moore) - Restore the commit modifying _REV to always return "2" (as required by ACPI 6) and add a blacklisting mechanism for systems that may be affected by that change (Rafael J Wysocki) - Assorted fixes and cleanups (Bob Moore, Lv Zheng, Sascha Wildner)" * tag 'acpica-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (28 commits) Revert 'Revert "ACPICA: Permanently set _REV to the value '2'."' ACPI / init: Make it possible to override _REV ACPICA: Update version to 20150619 ACPICA: Comment update, no functional change ACPICA: Update TPM2 ACPI table ACPICA: Update definitions for the TCPA and TPM2 ACPI tables ACPICA: Split C library prototypes to new header ACPICA: De-macroize calls to standard C library functions ACPI / acpidump: Update acpidump manual ACPICA: acpidump: Convert the default behavior to dump from /sys/firmware/acpi/tables ACPICA: acpidump: Allow customized tables to be dumped without accessing /dev/mem ACPICA: Cleanup output for the ASL Debug object ACPICA: Update for acpi_install_table memory types ACPICA: Namespace: Change namespace override to avoid node deletion ACPICA: Namespace: Add support of OSDT table ACPICA: Namespace: Add support to allow overriding objects ACPICA: ACPI 6.0: Add values for MADT GIC version field ACPICA: Utilities: Add _CLS processing ACPICA: Add dragon_fly support to unix file mapping file ACPICA: EFI: Add EFI interface definitions to eliminate dependency of GNU EFI ...
2015-07-02ACPICA: De-macroize calls to standard C library functionsBob Moore4-15/+15
ACPICA commit 3b1026e0bdd3c32eb6d5d313f3ba0b1fee7597b4 ACPICA commit 00f0dc83f5cfca53b27a3213ae0d7719b88c2d6b ACPICA commit 47d22a738d0e19fd241ffe4e3e9d4e198e4afc69 Across all of ACPICA. Replace C library macros such as ACPI_STRLEN with the standard names such as strlen. The original purpose for these macros is long since obsolete. Also cast various invocations as necessary. Bob Moore, Jung-uk Kim, Lv Zheng. Link: https://github.com/acpica/acpica/commit/3b1026e0 Link: https://github.com/acpica/acpica/commit/00f0dc83 Link: https://github.com/acpica/acpica/commit/47d22a73 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-02ACPI / acpidump: Update acpidump manualLv Zheng1-5/+12
This patch updates acpidump manual according to the recent changes. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-02ACPICA: acpidump: Convert the default behavior to dump from ↵Lv Zheng2-4/+13
/sys/firmware/acpi/tables ACPICA commit 04c3bd7e9d6aeb2b3edebe99c90dc271ae4e6353 In order to work without any additional option to dump tables when /dev/mem doesn't exist, this patch switches the default behavior of acpidump to dump from /sys/firmware/acpi/tables. Reported by Al Stone, Fixed by Lv Zheng. Link: https://github.com/acpica/acpica/commit/04c3bd7e Reported-by: Al Stone <ahs3@redhat.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-02ACPICA: acpidump: Allow customized tables to be dumped without accessing ↵Lv Zheng1-43/+46
/dev/mem ACPICA commit ab29013cfa2424140446aff196a70b211ab343a9 The /dev/mem can be configured out, in which case, acpidump should still work with "-c" option as tables can be found in /sys/firmware/acpi/tables. This patch allows acpidump to work without /dev/mem. This patch has been tested with "acpidump -c" and "acpidump -c -n FADT". And it worked as expected. Lv Zheng. Link: https://github.com/acpica/acpica/commit/ab29013c Reported-by: Al Stone <ahs3@redhat.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-02ACPICA: Add dragon_fly support to unix file mapping fileSascha Wildner1-1/+1
ACPICA commit 795b215d6fd062386f0a1c23dff9ffa244683c4f ACPICA BZ 1130 This patch doesn't affect Linux kernel. Link: https://bugs.acpica.org/show_bug.cgi?id=1130 Link: https://github.com/acpica/acpica/commit/795b215d Signed-off-by: Sascha Wildner <swildner@gmail.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-01perf tools: Allow to specify custom linker commandAaro Koskinen1-1/+1
Allow to specify custom linker command. This fixes MIPS64 builds for 64-bit userspace as it will allow to pass a linker using the correct linker flags for 64-bit ABI (by default GNU binutils ld will assume N32). Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1435751683-18500-2-git-send-email-aaro.koskinen@nokia.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-01perf tools: Create config.detected into OUTPUT directoryAaro Koskinen3-5/+5
Create config.detected into OUTPUT directory instead of source directory. This fixes parallel builds that share the same source directory. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1435751683-18500-1-git-send-email-aaro.koskinen@nokia.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-01perf mem: Fill in the missing session freeing after an error occursTaeung Song1-10/+6
When an error occurs an error value is just returned without freeing the session. So allocating and freeing session have to be matched as a pair even if an error occurs. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1435752499-11752-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-01perf kvm: Fill in the missing session freeing after an error occursTaeung Song1-4/+10
When an error occurs an error value is just returned without freeing the session. So allocating and freeing session have to be matched as a pair even if an error occurs. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1435677525-28055-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-01perf report: Fill in the missing session freeing after an error occursTaeung Song1-2/+4
When an error occurs an error value is just returned without freeing the session. So allocating and freeing session have to be matched as a pair even if an error occurs. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1435652124-22414-6-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-01perf kmem: Fill in the missing session freeing after an error occursTaeung Song1-2/+2
When an error occurs an error value is just returned without freeing the session. So allocating and freeing session have to be matched as a pair even if an error occurs. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1435652124-22414-3-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-01perf inject: Fill in the missing session freeing after an error occursTaeung Song1-3/+4
When an error occur an error value is just returned without freeing the session. So allocating and freeing session have to be matched as a pair even if an error occurs. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1435652124-22414-2-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-07-01perf tools: Add missing break for PERF_RECORD_ITRACE_STARTJiri Olsa1-2/+1
Missing switch break since introduction of new event: c4937a91ea56 perf tools: handle PERF_RECORD_LOST_SAMPLES Also removing unneeded break for PERF_RECORD_LOST_SAMPLES. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20150629112745.GA21507@krava.brq.redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-29Merge tag 'libnvdimm-for-4.2' of ↵Linus Torvalds7-0/+1366
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm Pull libnvdimm subsystem from Dan Williams: "The libnvdimm sub-system introduces, in addition to the libnvdimm-core, 4 drivers / enabling modules: NFIT: Instantiates an "nvdimm bus" with the core and registers memory devices (NVDIMMs) enumerated by the ACPI 6.0 NFIT (NVDIMM Firmware Interface table). After registering NVDIMMs the NFIT driver then registers "region" devices. A libnvdimm-region defines an access mode and the boundaries of persistent memory media. A region may span multiple NVDIMMs that are interleaved by the hardware memory controller. In turn, a libnvdimm-region can be carved into a "namespace" device and bound to the PMEM or BLK driver which will attach a Linux block device (disk) interface to the memory. PMEM: Initially merged in v4.1 this driver for contiguous spans of persistent memory address ranges is re-worked to drive PMEM-namespaces emitted by the libnvdimm-core. In this update the PMEM driver, on x86, gains the ability to assert that writes to persistent memory have been flushed all the way through the caches and buffers in the platform to persistent media. See memcpy_to_pmem() and wmb_pmem(). BLK: This new driver enables access to persistent memory media through "Block Data Windows" as defined by the NFIT. The primary difference of this driver to PMEM is that only a small window of persistent memory is mapped into system address space at any given point in time. Per-NVDIMM windows are reprogrammed at run time, per-I/O, to access different portions of the media. BLK-mode, by definition, does not support DAX. BTT: This is a library, optionally consumed by either PMEM or BLK, that converts a byte-accessible namespace into a disk with atomic sector update semantics (prevents sector tearing on crash or power loss). The sinister aspect of sector tearing is that most applications do not know they have a atomic sector dependency. At least today's disk's rarely ever tear sectors and if they do one almost certainly gets a CRC error on access. NVDIMMs will always tear and always silently. Until an application is audited to be robust in the presence of sector-tearing the usage of BTT is recommended. Thanks to: Ross Zwisler, Jeff Moyer, Vishal Verma, Christoph Hellwig, Ingo Molnar, Neil Brown, Boaz Harrosh, Robert Elliott, Matthew Wilcox, Andy Rudoff, Linda Knippers, Toshi Kani, Nicholas Moulin, Rafael Wysocki, and Bob Moore" * tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: (33 commits) arch, x86: pmem api for ensuring durability of persistent memory updates libnvdimm: Add sysfs numa_node to NVDIMM devices libnvdimm: Set numa_node to NVDIMM devices acpi: Add acpi_map_pxm_to_online_node() libnvdimm, nfit: handle unarmed dimms, mark namespaces read-only pmem: flag pmem block devices as non-rotational libnvdimm: enable iostat pmem: make_request cleanups libnvdimm, pmem: fix up max_hw_sectors libnvdimm, blk: add support for blk integrity libnvdimm, btt: add support for blk integrity fs/block_dev.c: skip rw_page if bdev has integrity libnvdimm: Non-Volatile Devices tools/testing/nvdimm: libnvdimm unit test infrastructure libnvdimm, nfit, nd_blk: driver for BLK-mode access persistent memory nd_btt: atomic sector updates libnvdimm: infrastructure for btt devices libnvdimm: write blk label set libnvdimm: write pmem label set libnvdimm: blk labels and namespace instantiation ...
2015-06-29Merge tag 'linux-kselftest-4.2-rc1' of ↵Linus Torvalds32-13/+4874
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest update from Shuah Khan: "This update adds two new test suites: futex and seccomp. In addition, it includes fixes for bugs in timers, other tests, and compile framework. It introduces new quicktest feature to enable users to choose to run tests that complete in a short time" * tag 'linux-kselftest-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: add quicktest support selftests: add seccomp suite selftest, x86: fix incorrect comment tools selftests: Fix 'clean' target with make 3.81 selftests/futex: Add .gitignore kselftest: Add exit code defines selftests: Add futex tests to the top-level Makefile selftests/futex: Increment ksft pass and fail counters selftests/futex: Update Makefile to use lib.mk selftests: Add futex functional tests kselftests: timers: Check _ALARM clockids are supported before suspending kselftests: timers: Ease alarmtimer-suspend unreasonable latency value kselftests: timers: Increase delay between suspends in alarmtimer-suspend selftests/exec: do not install subdir as it is already created selftests/ftrace: install test.d selftests: copy TEST_DIRS to INSTALL_PATH Test compaction of mlocked memory selftests/mount: output WARN messages when mount test skipped selftests/timers: Make git ignore all binaries in timers test suite
2015-06-27Merge tag 'staging-4.2-rc1' of ↵Linus Torvalds7-204/+610
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver updates from Greg KH: "Here's the big, really big, staging tree patches for 4.2-rc1. Loads of stuff in here, almost all just coding style fixes / churn, and a few new drivers as well, one of which I just disabled from the build a few minutes ago due to way too many build warnings. Other than the one "disable this driver" patch, all of these have been in linux-next for quite a while with no reported issues" * tag 'staging-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1163 commits) staging: wilc1000: disable driver due to build warnings Staging: rts5208: fix CHANGE_LINK_STATE value Staging: sm750fb: ddk750_swi2c.c: Insert spaces before parenthesis Staging: sm750fb: ddk750_swi2c.c: Place braces on correct lines Staging: sm750fb: ddk750_swi2c.c: Insert spaces around operators Staging: sm750fb: ddk750_swi2c.c: Replace spaces with tabs Staging: sm750fb: ddk750_swi2c.h: Shorten lines to under 80 characters Staging: sm750fb: ddk750_swi2c.h: Replace spaces with tabs Staging: sm750fb: modedb.h: Shorten lines to under 80 characters Staging: sm750fb: modedb.h: Replace spaces with tabs staging: comedi: addi_apci_3120: rename 'this_board' variables staging: comedi: addi_apci_1516: rename 'this_board' variables staging: comedi: ni_atmio: cleanup ni_getboardtype() staging: comedi: vmk80xx: sanity check context used to get the boardinfo staging: comedi: vmk80xx: rename 'boardinfo' variables staging: comedi: dt3000: rename 'this_board' variables staging: comedi: adv_pci_dio: rename 'this_board' variables staging: comedi: cb_pcidas64: rename 'thisboard' variables staging: comedi: cb_pcidas: rename 'thisboard' variables staging: comedi: me4000: rename 'thisboard' variables ...
2015-06-27Merge tag 'char-misc-4.2-rc1' of ↵Linus Torvalds3-247/+83
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here's the big char/misc driver pull request for 4.2-rc1. Lots of mei, extcon, coresight, uio, mic, and other driver updates in here. Full details in the shortlog. All of these have been in linux-next for some time with no reported problems" * tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits) mei: me: wait for power gating exit confirmation mei: reset flow control on the last client disconnection MAINTAINERS: mei: add mei_cl_bus.h to maintained file list misc: sram: sort and clean up included headers misc: sram: move reserved block logic out of probe function misc: sram: add private struct device and virt_base members misc: sram: report correct SRAM pool size misc: sram: bump error message level on unclean driver unbinding misc: sram: fix device node reference leak on error misc: sram: fix enabled clock leak on error path misc: mic: Fix reported static checker warning misc: mic: Fix randconfig build error by including errno.h uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config uio: pruss: Add CONFIG_HAS_IOMEM dependence uio: pruss: Include <linux/sizes.h> extcon: Redefine the unique id of supported external connectors without 'enum extcon' type char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration(). Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion parport: check exclusive access before register w1: use correct lock on error in w1_seq_show() ...
2015-06-27Merge tag 'trace-v4.2' of ↵Linus Torvalds2-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "This patch series contains several clean ups and even a new trace clock "monitonic raw". Also some enhancements to make the ring buffer even faster. But the biggest and most noticeable change is the renaming of the ftrace* files, structures and variables that have to deal with trace events. Over the years I've had several developers tell me about their confusion with what ftrace is compared to events. Technically, "ftrace" is the infrastructure to do the function hooks, which include tracing and also helps with live kernel patching. But the trace events are a separate entity altogether, and the files that affect the trace events should not be named "ftrace". These include: include/trace/ftrace.h -> include/trace/trace_events.h include/linux/ftrace_event.h -> include/linux/trace_events.h Also, functions that are specific for trace events have also been renamed: ftrace_print_*() -> trace_print_*() (un)register_ftrace_event() -> (un)register_trace_event() ftrace_event_name() -> trace_event_name() ftrace_trigger_soft_disabled() -> trace_trigger_soft_disabled() ftrace_define_fields_##call() -> trace_define_fields_##call() ftrace_get_offsets_##call() -> trace_get_offsets_##call() Structures have been renamed: ftrace_event_file -> trace_event_file ftrace_event_{call,class} -> trace_event_{call,class} ftrace_event_buffer -> trace_event_buffer ftrace_subsystem_dir -> trace_subsystem_dir ftrace_event_raw_##call -> trace_event_raw_##call ftrace_event_data_offset_##call-> trace_event_data_offset_##call ftrace_event_type_funcs_##call -> trace_event_type_funcs_##call And a few various variables and flags have also been updated. This has been sitting in linux-next for some time, and I have not heard a single complaint about this rename breaking anything. Mostly because these functions, variables and structures are mostly internal to the tracing system and are seldom (if ever) used by anything external to that" * tag 'trace-v4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits) ring_buffer: Allow to exit the ring buffer benchmark immediately ring-buffer-benchmark: Fix the wrong type ring-buffer-benchmark: Fix the wrong param in module_param ring-buffer: Add enum names for the context levels ring-buffer: Remove useless unused tracing_off_permanent() ring-buffer: Give NMIs a chance to lock the reader_lock ring-buffer: Add trace_recursive checks to ring_buffer_write() ring-buffer: Allways do the trace_recursive checks ring-buffer: Move recursive check to per_cpu descriptor ring-buffer: Add unlikelys to make fast path the default tracing: Rename ftrace_get_offsets_##call() to trace_event_get_offsets_##call() tracing: Rename ftrace_define_fields_##call() to trace_event_define_fields_##call() tracing: Rename ftrace_event_type_funcs_##call to trace_event_type_funcs_##call tracing: Rename ftrace_data_offset_##call to trace_event_data_offset_##call tracing: Rename ftrace_raw_##call event structures to trace_event_raw_##call tracing: Rename ftrace_trigger_soft_disabled() to trace_trigger_soft_disabled() tracing: Rename FTRACE_EVENT_FL_* flags to EVENT_FILE_FL_* tracing: Rename struct ftrace_subsystem_dir to trace_subsystem_dir tracing: Rename ftrace_event_name() to trace_event_name() tracing: Rename FTRACE_MAX_EVENT to TRACE_EVENT_TYPE_MAX ...
2015-06-26libnvdimm, nfit: handle unarmed dimms, mark namespaces read-onlyDan Williams1-0/+3
Upon detection of an unarmed dimm in a region, arrange for descendant BTT, PMEM, or BLK instances to be read-only. A dimm is primarily marked "unarmed" via flags passed by platform firmware (NFIT). The flags in the NFIT memory device sub-structure indicate the state of the data on the nvdimm relative to its energy source or last "flush to persistence". For the most part there is nothing the driver can do but advertise the state of these flags in sysfs and emit a message if firmware indicates that the contents of the device may be corrupted. However, for the case of ACPI_NFIT_MEM_ARMED, the driver can arrange for the block devices incorporating that nvdimm to be marked read-only. This is a safe default as the data is still available and new writes are held off until the administrator either forces read-write mode, or the energy source becomes armed. A 'read_only' attribute is added to REGION devices to allow for overriding the default read-only policy of all descendant block devices. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-06-26tools/testing/nvdimm: libnvdimm unit test infrastructureDan Williams7-0/+1363
'libnvdimm' is the first driver sub-system in the kernel to implement mocking for unit test coverage. The nfit_test module gets built as an external module and arranges for external module replacements of nfit, libnvdimm, nd_pmem, and nd_blk. These replacements use the linker --wrap option to redirect calls to ioremap() + request_mem_region() to custom defined unit test resources. The end result is a fully functional nvdimm_bus, as far as userspace is concerned, but with the capability to perform otherwise destructive tests on emulated resources. Q: Why not use QEMU for this emulation? QEMU is not suitable for unit testing. QEMU's role is to faithfully emulate the platform. A unit test's role is to unfaithfully implement the platform with the goal of triggering bugs in the corners of the sub-system implementation. As bugs are discovered in platforms, or the sub-system itself, the unit tests are extended to backstop a fix with a reproducer unit test. Another problem with QEMU is that it would require coordination of 3 software projects instead of 2 (kernel + libndctl [1]) to maintain and execute the tests. The chances for bit rot and the difficulty of getting the tests running goes up non-linearly the more components involved. Q: Why submit this to the kernel tree instead of external modules in libndctl? Simple, to alleviate the same risk that out-of-tree external modules face. Updates to drivers/nvdimm/ can be immediately evaluated to see if they have any impact on tools/testing/nvdimm/. Q: What are the negative implications of merging this? It is a unique maintenance burden because the purpose of mocking an interface to enable a unit test is to purposefully short circuit the semantics of a routine to enable testing. For example __wrap_ioremap_cache() fakes the pmem driver into "ioremap()'ing" a test resource buffer allocated by dma_alloc_coherent(). The future maintenance burden hits when someone changes the semantics of ioremap_cache() and wonders what the implications are for the unit test. [1]: https://github.com/pmem/ndctl Cc: <linux-acpi@vger.kernel.org> Cc: Lv Zheng <lv.zheng@intel.com> Cc: Robert Moore <robert.moore@intel.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2015-06-26perf symbols: Check access permission when reading symbol filesLi Zhang2-1/+15
There 2 problems when reading symbols files: * It doesn't report any errors even if when users specify symbol files which don't exist with --kallsyms or --vmlinux. The result just shows the address without symbols, which is not what is expected. So it's better to report errors and exit the program. * When using command perf report --kallsyms=/proc/kallsyms with a non-root user, symbols are resolved. Then select one symbol and annotate it, it reports the error as the following: Can't annotate __clear_user: No vmlinux file with build id xxx was found. The problem is caused by reading /proc/kcore without access permission. /proc/kcore requires CAP_SYS_RAWIO capability to access, so it needs to change access permission to allow a specific user to read /proc/kcore or use root to execute the perf command. This patch is to report errors when symbol files specified by users don't exist. And check access permission of /proc/kcore when reading it. Signed-off-by: Li Zhang <zhlcindy@linux.vnet.ibm.com> Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1434704253-2632-1-git-send-email-zhlcindy@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Introduce --per-thread optionJiri Olsa3-2/+79
Currently all the -p option PID arguments tasks values get aggregated and printed as single values. Adding --per-tasks option to print values per task. $ perf stat -e cycles,instructions --per-thread -p 30190,30242 ^C Performance counter stats for process id '30190,30242': cat-30190 0 cycles yes-30242 3,842,525,421 cycles cat-30190 0 instructions yes-30242 10,370,817,010 instructions 1.143155657 seconds time elapsed Also works under interval mode: $ perf stat -e cycles,instructions --per-thread -p 30190,30242 -I 1000 # time comm-pid counts unit events 1.000073435 cat-30190 89,058 cycles 1.000073435 yes-30242 3,360,786,902 cycles (100.00%) 1.000073435 cat-30190 14,066 instructions 1.000073435 yes-30242 9,069,937,462 instructions 2.000204830 cat-30190 0 cycles 2.000204830 yes-30242 3,351,667,626 cycles 2.000204830 cat-30190 0 instructions 2.000204830 yes-30242 9,045,796,885 instructions ^C 2.771286639 cat-30190 0 cycles 2.771286639 yes-30242 2,593,884,166 cycles 2.771286639 cat-30190 0 instructions 2.771286639 yes-30242 7,001,171,191 instructions It works only with -t and -p options, otherwise following error is printed: $ perf stat -e cycles --per-thread -I 1000 ls The --per-thread option is only available when monitoring via -p -t options. -p, --pid <pid> stat events on existing process id -t, --tid <tid> stat events on existing thread id Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-23-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Introduce print_counters functionJiri Olsa1-63/+64
Centralize counters print code into single print_counters function. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-22-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Using init_stats instead of memsetJiri Olsa1-1/+1
The init_stats function is meant to init 'struct stats'. Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-21-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Rename print_interval to process_intervalJiri Olsa1-3/+3
It suits better, because the function also reads counter's data. Also the 'print_interval' name will be used in following generalization of counters display. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-20-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Remove perf_evsel__read_cb functionJiri Olsa2-23/+0
It's no longer used, the stat command uses perf_evsel__read now. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-19-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Move perf_stat initialization counter process codeJiri Olsa1-4/+1
Moving perf_stat initialization counter process code, to make the reading path free of processing logic. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-18-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Move zero_per_pkg into counter process codeJiri Olsa1-3/+3
Moving zero_per_pkg into counter process code, to make the reading path free of processing logic. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-17-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Separate counters reading and processingJiri Olsa1-17/+39
Separating counters reading and processing so we could use the processing part in following patches. Using simple reading via perf_evsel__read function to read counters now, because part of the processing was in the read_cb callback. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-16-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Introduce read_counters functionJiri Olsa1-25/+22
Moving read counters logic into single read_counters function, which will be called for both interval and overall processing legs. The reason is to split reading and processing (following patches) counters code, so we could read counters from other sources (like perf.data) and process them in the same way as 'perf stat' command does. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-15-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Introduce perf_evsel__read functionJiri Olsa2-0/+17
Adding simple read function that reads/store data into given struct perf_counts_values *count object. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-14-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Introduce perf_evsel__alloc_stats functionJiri Olsa2-6/+16
Move all stat allocation logic related to stat object under single function. This way we can use it separately for stat object out of evlist object. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-13-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Move perf_evlist__(alloc|free|reset)_stats into stat objectJiri Olsa4-43/+50
Moving perf_evlist__(alloc|free|reset)_stats into stat object, so it could be used in following patches. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-12-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Move perf_evsel__(alloc|free)_prev_raw_counts into stat objectJiri Olsa3-18/+22
Moving perf_evsel__(alloc|free)_prev_raw_counts into stat object, so it could be used in following patches. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-11-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Move perf_evsel__(alloc|free|reset)_stat_priv into stat objectJiri Olsa3-25/+29
Moving perf_evsel__(alloc|free|reset)_stat_priv into stat object, so it could be used outside stat command in following patches. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-10-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Introduce perf_evlist__reset_statsJiri Olsa1-2/+6
To fit in with the rest of the helpers (alloc and free). Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-9-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Rename struct perf_counts::cpu member to valuesJiri Olsa2-8/+8
Renaming 'struct xyarray *cpu' pointer to more fitting/generic values, because now we store both cpu and thread values. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-8-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Make stats work over the thread dimensionJiri Olsa7-34/+38
Now that we have space for thread dimension counts, let's store it. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-7-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Use xyarray for cpu evsel countsJiri Olsa4-14/+28
Switching single dimensional array of 'struct perf_counts_values' with xyarray object, so we could store thread dimension counts. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-6-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf stat: Introduce perf_counts functionJiri Olsa6-30/+37
Introducing perf_counts function, that returns 'struct perf_counts_values' pointer for given cpu. Also moving perf_counts* structures into stat.h. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf tests: Add thread_map object testsJiri Olsa4-0/+44
Adding thread_map object tests for comm name values. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-4-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf thrad_map: Add comm string into arrayJiri Olsa3-0/+68
Adding support to hold comm name together with pids in 'struct thread_map'. It will be useful for --per-thread option to display task pid together with task name. Adding thread_map__read_comms function that reads/set comm string for the 'struct thread_map'. Getting the task name from /proc/$pid/comm. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf thread_map: Introduce thread_map__reset functionJiri Olsa1-1/+16
We need to reset newly allocated 'struct thread_map_data' entries, because we will introduce new comm memeber, which will get set later or not at all. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435310967-14570-2-git-send-email-jolsa@kernel.org [ Use sizeof(map->map[0]) to be independent of the array entry type ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26perf trace: Validate syscall list passed via -e argumentArnaldo Carvalho de Melo1-0/+32
The 'trace' tool was accepting any names passed and just looking if syscalls returned via the raw_syscalls:* tracepoints were in that list, leading to it accepting perf events and then never finding any, as those are not valid syscall names, confusing users. Fix it by checking each entry in the list using audit_name_to_syscall, telling the user which entries are invalid and suggesting where to look for valid syscall names. E.g: [root@zoo ~]# trace -e open,foo,bar,close,baz Error: Invalid syscall bar, baz, foo Hint: try 'perf list syscalls:sys_enter_*' Hint: and: 'man syscalls' [root@zoo ~]# Reported-by: Flavio Leitner <fbl@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-4g1i3m1z6fzsrznn2umi02wa@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-26Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar21-43/+129
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core improvements and refactorings from Arnaldo Carvalho de Melo: Infrastructure changes: - Reference count the cpu_map and thread_map classes. (Jiri Olsa) - Set evsel->{cpus,threads} from the evlist, if not set, allowing the generalization of some 'perf stat' functions that previously were accessing private static evlist variable. (Jiri Olsa) - Delete an unnecessary check before the calling free_event_desc() (Markus Elfring) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-06-26Merge tag 'perf-urgent-for-mingo' of ↵Ingo Molnar1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fix from Arnaldo Carvalho de Melo: - Fix to show proper convergence stats in 'perf bench numa' (Srikar Dronamraju) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-06-25perf tools: Make perf_evsel__(nr_)cpus genericJiri Olsa2-10/+11
Because we now propagate all evlist's cpu_maps and thread_map objects through all evsels, the perf_evsel__(nr_)cpus no longer need to be specific to stat object and check evlist and target objects. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435012588-9007-8-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-06-25perf evlist: Propagate thread maps through the evlistJiri Olsa3-1/+5
Propagate evlist's thread_map object through all the evsel objects. It'll be handy to access evsel's threads directly in following patches. The reason is there's no link from evsel to evlist which hold threads map now and evlist is not always available. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1435012588-9007-7-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>