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2016-01-26perf test: Fixup aliases checking in the 'vmlinux matches kallsyms' testArnaldo Carvalho de Melo1-19/+5
There are cases where looking at just the next and prev entries is not enough, like with: $ readelf -sW /usr/lib/debug/lib/modules/4.3.3-301.fc23.x86_64/vmlinux | grep ffffffff81065ec0 4979: ffffffff81065ec0 53 FUNC LOCAL DEFAULT 1 try_to_free_pud_page 4980: ffffffff81065ec0 53 FUNC LOCAL DEFAULT 1 try_to_free_pte_page 4981: ffffffff81065ec0 53 FUNC LOCAL DEFAULT 1 try_to_free_pmd_page So just search by name to see if the symbol is in kallsyms. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-jj1vlljg7ol4i713l60rt5ai@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf machine: Introduce machine__find_kernel_symbol_by_name()Arnaldo Carvalho de Melo1-0/+10
To be used in the 'vmlinux matches kallsyms' 'perf test' entry. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-m56g1853lz2c6nhnqxibq4jd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf hists browser: Offer non-symbol specific menu options for --sort without 'sym'Namhyung Kim1-5/+1
Now that we check more strictly what each of the menu entries need, we can stop bailing out when 'sym' is not in the --sort order, instead we let each option be added if what it needs is present. This way, for instance, we can run scripts on all samples, see DSO map details when 'dso' is in the --sort provided, etc. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org>, Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452960197-5323-9-git-send-email-namhyung@kernel.org [ Carved out from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf hists browser: Be a bit more strict about presenting CPU socket zoomNamhyung Kim1-1/+1
For consistency with the other sort order checks. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org>, Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452960197-5323-9-git-send-email-namhyung@kernel.org [ Carved out from a larger patch, moved check to add_socket_opt() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf hists browser: Offer 'Zoom into DSO'/'Map details' only when sort order has 'dso'Namhyung Kim2-2/+3
We can't offer a zoom into DSO when a bucket (struct hist_entry) may have samples for more than one DSO, i.e. when 'dso' is not part of the sort order, ditto for 'Map details', fix it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org>, Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452960197-5323-9-git-send-email-namhyung@kernel.org [ Carved out from a larger patch, moved check to add_{dso,map}_opt() ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf hists browser: Only offer symbol scripting when a symbol is under the cursorNamhyung Kim1-4/+6
When this feature was introduced a check was made if there was a resolved symbol under the cursor, it got lost in commit ea7cd5923309 ("perf hists browser: Split popup menu actions - part 2"), reinstate it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org>, Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Fixes: ea7cd5923309 ("perf hists browser: Split popup menu actions - part 2") Link: http://lkml.kernel.org/r/1452960197-5323-9-git-send-email-namhyung@kernel.org [ Carved out from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf hists browser: Only 'Zoom into thread' only when sort order has 'pid'Namhyung Kim1-5/+7
We can't offer a zoom into thread when a bucket (struct hist_entry) may have samples for more than one thread, i.e. when 'pid' is not part of the sort order, fix it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org>, Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452960197-5323-9-git-send-email-namhyung@kernel.org [ Carved out from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf sort: Provide a way to find out if per-thread bucketing is in placeNamhyung Kim2-0/+4
Now the UI browsers will be able to offer thread related operations only if the thread is part of the sort order in use, i.e. if hist_entry stats are all for a single thread. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org>, Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452960197-5323-9-git-send-email-namhyung@kernel.org [ Carved out from a larger patch ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf config: Document 'hist.percentage' variable in man pageTaeung Song1-0/+17
Explain 'hist.percentage' variable. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1452253193-30502-7-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf config: Document variables for 'annotate' section in man pageTaeung Song1-0/+110
Explain 'annotate' section and its variables. 'hide_src_code', 'use_offset', 'jump_arrows', 'show_linenr', 'show_nr_jump' and 'show_total_period'. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1452253193-30502-5-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf config: Document 'buildid.dir' variable in man pageTaeung Song1-0/+15
Explain 'buildid.dir' variable. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1452253193-30502-4-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf config: Document variables for 'tui' and 'gtk' sections in man pageTaeung Song1-0/+10
Explain 'tui' and 'gtk' sections and these variables. 'top', 'report' and 'annotate' Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1452253193-30502-3-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf config: Document variables for 'colors' section in man pageTaeung Song1-0/+46
Explain 'colors' section and its variables, used for The variables for customizing the colors used in the output for the 'report', 'top' and 'annotate' in the TUI, those are: 'top', 'medium', 'normal', 'selected', 'jump_arrows', 'addr' and 'root'. Signed-off-by: Taeung Song <treeze.taeung@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1452253193-30502-2-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf annotate: Rename 'colors.code' to 'colors.jump_arrows'Taeung Song5-6/+6
USe 'jump_arrows' config name instead of 'code' on 'colors' section. 'colors.code' config is only for jump arrows on assembly code listings i.e. │ ┌──jmp 1333 │ │ xchg %ax,%ax │ │ mov %r15,%r10 │ └─→cmp %r15,%r14 But this config name seems unfit. 'jump_arrows' is more descriptive than 'code'. 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/1452240971-25418-1-git-send-email-treeze.taeung@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf tools: Document the perf sysctlsBen Hutchings1-6/+9
perf_event_paranoid was only documented in source code and a perf error message. Copy the documentation from the error message to Documentation/sysctl/kernel.txt. perf_cpu_time_max_percent was already documented but missing from the list at the top, so add it there. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-doc@vger.kernel.org Link: http://lkml.kernel.org/r/20160119213515.GG2637@decadent.org.uk [ Remove reference to external Documentation file, provide info inline, as before ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf hists: Cleanup filtering functionsNamhyung Kim1-60/+29
The hists__filter_by_xxx functions share same logic with different filters. Factor out the common code into the hists__filter_by_type. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1453252521-24398-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf hists: Remove parent filter check in DSO filter functionNamhyung Kim1-3/+0
The --exclude-other option sets HIST_FILTER__PARENT bit and it's only set when a hist entry was created. DSO filters don't change this so no need to have the check in hists__filter_by_dso() IMHO. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1453252521-24398-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf stat: Making several helper functions staticJiri Olsa2-17/+7
There's no need for the following functions to be global: perf_evsel__reset_stat_priv perf_evsel__alloc_stat_priv perf_evsel__free_stat_priv perf_evsel__alloc_prev_raw_counts perf_evsel__free_prev_raw_counts perf_evsel__alloc_stats They all ended up in util/stat.c, and they no longer need to be called from outside this object. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1453290995-18485-5-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf symbols: Do not read symbols/data from device filesJiri Olsa4-1/+21
With mem sampling we could get data source within mapped device file. Processing such sample would block during report phase on trying to read the device file. Chacking for device files and skip the processing if it's detected. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1453290995-18485-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf pmu: Fix misleadingly indented assignment (whitespace)Markus Trippelsdorf1-1/+1
One line in perf_pmu__parse_unit() is indented wrongly, leading to a warning (=> error) from gcc 6: util/pmu.c:156:3: error: statement is indented as if it were guarded by... [-Werror=misleading-indentation] sret = read(fd, alias->unit, UNIT_MAX_LEN); ^~~~ util/pmu.c:153:2: note: ...this 'if' clause, but it is not if (fd == -1) ^~ Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Peter Zijlstra <peterz@infradead.org> Fixes: 410136f5dd96 ("tools/perf/stat: Add event unit and scale support") Link: http://lkml.kernel.org/r/20151214154440.GC1409@x4 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf stat: Do not clean event's private statsJiri Olsa1-1/+0
Mel reported stddev reporting was broken due to following commit: 106a94a0f8c2 ("perf stat: Introduce read_counters function") This commit merged interval and overall counters reading into single read_counters function. The old interval code cleaned the stddev data for some reason (it's never displayed in interval mode) and the mentioned commit kept on cleaning the stddev data in merged function, which resulted in the stddev not being displayed. Removing the wrong stddev data cleanup init_stats call. Reported-and-Tested-by: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: stable@vger.kernel.org # v4.2+ Fixes: 106a94a0f8c2 ("perf stat: Introduce read_counters function") Link: http://lkml.kernel.org/r/1453290995-18485-4-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf hists: Fix HISTC_MEM_DCACHELINE width settingJiri Olsa1-0/+2
Set correct width for unresolved mem_dcacheline addr. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Fixes: 9b32ba71ba90 ("perf tools: Add dcacheline sort") Link: http://lkml.kernel.org/r/1453290995-18485-3-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf annotate browser: Fix behaviour of Shift-Tab with nothing focussedMarkus Trippelsdorf1-2/+2
The issue was pointed out by gcc-6's -Wmisleading-indentation. Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Peter Zijlstra <peterz@infradead.org> Fixes: c97cf42219b7 ("perf top: Live TUI Annotation") Link: http://lkml.kernel.org/r/20151214154403.GB1409@x4 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-26perf tests: Remove wrong semicolon in while loop in CQM testMarkus Trippelsdorf1-1/+1
The while loop was spinning. Fix by removing a semicolon. The issue was pointed out by gcc-6's -Wmisleading-indentation. Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de> Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Peter Zijlstra <peterz@infradead.org> Fixes: 035827e9f2bd ("perf tests: Add Intel CQM test") Link: http://lkml.kernel.org/r/20151214154335.GA1409@x4 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-19Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgentIngo Molnar5-18/+70
Pull perf tools improvements and fixes from Arnaldo Carvalho de Melo: User visible bug fixes: - Fix reading of build-id from vDSO (Ben Hutchings) - Fix processing samples for guests, noticed with 'perf kvm', but noticeable as well via other tools, such as 'perf top' (Ravi Bangoria) Build infrastructure: - Add feature-dump target and FEATURES_DUMP make variable, to allow reusing the feature detection results among multiple tools/ living codebases, such as perf and lib/bpf (Jiri Olsa) - 'make -C tools/perf build-test' improvements, making it more paralelizable and allowing building it outside of the source tree, using O= (Wang Nan) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-15perf build: Introduce FEATURES_DUMP make variableJiri Olsa2-1/+17
Introducing FEATURES_DUMP make variable to provide features detection dump file and bypass the feature detection. The intention is to use this during build tests to skip repeated features detection, like: Get feature dump static build into /tmp/fd file: $ make feature-dump FEATURE_DUMP_COPY=/tmp/fd LDFLAGS=-static BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ OFF ] SNIP FEATURE-DUMP file copied into /tmp/fd Use /tmp/fd to build perf: $ make FEATURES_DUMP=/tmp/fd LDFLAGS=-static $ file perf perf: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), statically linked, for ... Suggested-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452830421-77757-7-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-15perf build: Add feature-dump targetJiri Olsa1-0/+11
To provide FEATURE-DUMP into $(FEATURE_DUMP_COPY) if defined, with no further action. Get feature dump of the current build: $ make feature-dump BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ on ] FEATURE-DUMP file available in FEATURE-DUMP Get feature dump static build into /tmp/fd file: $ make feature-dump FEATURE_DUMP_COPY=/tmp/fd LDFLAGS=-static BUILD: Doing 'make -j4' parallel build Auto-detecting system features: ... dwarf: [ OFF ] SNIP FEATURE-DUMP file copied into /tmp/fd Suggested-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452830421-77757-6-git-send-email-wangnan0@huawei.com Signed-off-by: Wang Nan <wangnan0@huawei.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-15perf build: Pass O option to kernel makefile in build-testWang Nan1-4/+5
Kernel makefile only follows an 'O' option passed from command line explicitely. In build-test with 'O' option set, kernel makefile contaminate kernel source directory. Build test also fail if we don't create output directory manually. K_O_OPT is added and passed to kernel makefile if 'O' is passed to build-test. Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452830421-77757-5-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-15perf build: Test correct path of perf in build-testWang Nan1-7/+14
If an 'O' is passed to 'make build-test', many 'test -x' and 'test -f' will fail because perf resides in a different directory. Fix this by computing PERF_OUT according to 'O' and test correct output files. For make_kernelsrc and make_kernelsrc_tools, set KBUILD_OUTPUT_DIR instead because the path is different from others ($(O)/perf vs $(O)/tools/perf). Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452830421-77757-4-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-15perf build: Pass O option to Makefile.perf in build-testWang Nan1-3/+11
Unlike tools/perf/Makefile, tools/perf/Makefile.perf obey 'O' option when it is passed through cmdline only, due to code in tools/scripts/Makefile.include: ifneq ($(O),) ifeq ($(origin O), command line) ... ABSOLUTE_O := $(shell cd $(O) ; pwd) OUTPUT := $(ABSOLUTE_O)/$(if $(subdir),$(subdir)/) endif endif This patch passes 'O' to Makefile.perf through cmdline explicitly to make it follow O variable during build-test. 'make clean' should have identical 'O' option with 'make'. If not, config-clean may error. Signed-off-by: Wang Nan <wangnan0@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452830421-77757-3-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-15perf build: Set parallel making options build-testWang Nan1-7/+16
'make build-test' is painful because of time consuming. In a full test, all test cases are built twice with tools/perf/Makefile and tools/perf/Makefile.perf. 'Makefile' automatically computes parallel options for make, but 'Makefile.perf' not, so all test cases is built with one job. It is very slow. This patch adds '-j' options to Makefile.perf testing. It computes parallel building options like what tools/perf/Makefile does, and pass '-j' option to Makefile.perf test. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1452687442-6186-2-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-15perf symbols: Fix reading of build-id from vDSOBen Hutchings1-1/+1
We need to use the long name (the filename) when reading the build-id from a DSO. Using the short name doesn't work for (at least) vDSOs. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20160113172301.GT28542@decadent.org.uk Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-15perf kvm record/report: 'unprocessable sample' error while recording/reporting guest dataRavi Bangoria1-1/+1
While recording guest samples in host using perf kvm record, it will populate unprocessable sample error, though samples will be recorded properly. While generating report using perf kvm report, no samples will be processed and same error will populate. We have seen this behaviour with upstream perf(4.4-rc3) on x86 and ppc64 hardware. Reason behind this failure is, when it tries to fetch machine from rb_tree of machines, it fails. As a part of tracing a bug, we figured out that this code was incorrectly refactored in commit 54245fdc3576 ("perf session: Remove wrappers to machines__find"). This patch will change the functionality such that if it can't fetch machine in first trial, it will create one node of machine and add that to rb_tree. So next time when it tries to fetch same machine from rb_tree, it won't fail. Actually it was the case before refactoring of code in aforementioned commit. This patch is generated from acme perf/core branch. Below I've mention an example that demonstrate the behaviour before and after applying patch. Before applying patch: [Note: One needs to run guest before recording data in host] ravi@ravi-bangoria:~$ ./perf kvm record -a Warning: 5903 unprocessable samples recorded. Do you have a KVM guest running and not using 'perf kvm'? [ perf record: Captured and wrote 1.409 MB perf.data.guest (285 samples) ] ravi@ravi-bangoria:~$ ./perf kvm report --stdio Warning: 5903 unprocessable samples recorded. Do you have a KVM guest running and not using 'perf kvm'? # To display the perf.data header info, please use --header/--header-only options. # # Total Lost Samples: 0 # # Samples: 285 of event 'cycles' # Event count (approx.): 88715406 # # Overhead Command Shared Object Symbol # ........ ....... ............. ...... # # (For a higher level overview, try: perf report --sort comm,dso) # After applying patch: ravi@ravi-bangoria:~$ ./perf kvm record -a [ perf record: Captured and wrote 1.188 MB perf.data.guest (17 samples) ] ravi@ravi-bangoria:~$ ./perf kvm report --stdio # To display the perf.data header info, please use --header/--header-only options. # # Total Lost Samples: 0 # # Samples: 17 of event 'cycles' # Event count (approx.): 700746 # # Overhead Command Shared Object Symbol # ........ ....... ................ ...................... # 34.19% :5758 [unknown] [g] 0xffffffff818682ab 22.79% :5758 [unknown] [g] 0xffffffff812dc7f8 22.79% :5758 [unknown] [g] 0xffffffff818650d0 14.83% :5758 [unknown] [g] 0xffffffff8161a1b6 2.49% :5758 [unknown] [g] 0xffffffff818692bf 0.48% :5758 [unknown] [g] 0xffffffff81869253 0.05% :5758 [unknown] [g] 0xffffffff81869250 Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: stable@vger.kernel.org # v3.19+ Fixes: 54245fdc3576 ("perf session: Remove wrappers to machines__find") Link: http://lkml.kernel.org/r/1449471302-11283-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-14Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds2-2/+92
Pull x86 fixes from Ingo Molnar: "Misc changes: - fix lguest bug - fix /proc/meminfo output on certain configs - fix pvclock bug - fix reboot on certain iMacs by adding new reboot quirk - fix bootup crash - fix FPU boot line option parsing - add more x86 self-tests - small cleanups, documentation improvements, etc" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu/amd: Remove an unneeded condition in srat_detect_node() x86/vdso/pvclock: Protect STABLE check with the seqcount x86/mm: Improve switch_mm() barrier comments selftests/x86: Test __kernel_sigreturn and __kernel_rt_sigreturn x86/reboot/quirks: Add iMac10,1 to pci_reboot_dmi_table[] lguest: Map switcher text R/O x86/boot: Hide local labels in verify_cpu() x86/fpu: Disable AVX when eagerfpu is off x86/fpu: Disable MPX when eagerfpu is off x86/fpu: Disable XGETBV1 when no XSAVE x86/fpu: Fix early FPU command-line parsing x86/mm: Use PAGE_ALIGNED instead of IS_ALIGNED selftests/x86: Disable the ldt_gdt_64 test for now x86/mm/pat: Make split_page_count() check for empty levels to fix /proc/meminfo output x86/boot: Double BOOT_HEAP_SIZE to 64KB x86/mm: Add barriers and document switch_mm()-vs-flush synchronization
2016-01-14Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds28-66/+918
Pull perf fixes from Ingo Molnar: "Tooling fixes, the biggest patch is one that decouples the kernel's list.h from tooling list.h" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) perf tools: Fallback to srcdir/Documentation/tips.txt perf ui/tui: Print helpline message as is perf tools: Set and pass DOCDIR to builtin-report.c perf tools: Add file_only config option to strlist perf tools: Add more usage tips perf record: Add --buildid-all option tools subcmd: Add missing NORETURN define for parse-options.h tools: Fix formatting of the "make -C tools" help message tools: Make list.h self-sufficient perf tools: Fix mmap2 event allocation in synthesize code perf stat: Fix recort_usage typo perf test: Reset err after using it hold errcode in hist testcases perf test: Fix false TEST_OK result for 'perf test hist' tools build: Add BPF feature check to test-all perf bpf: Fix build breakage due to libbpf tools: Move Makefile.arch from perf/config to tools/scripts perf tools: Fix PowerPC native building perf tools: Fix phony build target for build-test perf tools: Add -lutil in python lib list for broken python-config perf tools: Add missing sources to perf's MANIFEST ...
2016-01-13Merge tag 'libnvdimm-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimmLinus Torvalds3-34/+72
Pull libnvdimm updates from Dan Williams: "The bulk of this has appeared in -next and independently received a build success notification from the kbuild robot. The 'for-4.5/block- dax' topic branch was rebased over the weekend to drop the "block device end-of-life" rework that Al would like to see re-implemented with a notifier, and to address bug reports against the badblocks integration. There is pending feedback against "libnvdimm: Add a poison list and export badblocks" received last week. Linda identified some localized fixups that we will handle incrementally. Summary: - Media error handling: The 'badblocks' implementation that originated in md-raid is up-levelled to a generic capability of a block device. This initial implementation is limited to being consulted in the pmem block-i/o path. Later, 'badblocks' will be consulted when creating dax mappings. - Raw block device dax: For virtualization and other cases that want large contiguous mappings of persistent memory, add the capability to dax-mmap a block device directly. - Increased /dev/mem restrictions: Add an option to treat all io-memory as IORESOURCE_EXCLUSIVE, i.e. disable /dev/mem access while a driver is actively using an address range. This behavior is controlled via the new CONFIG_IO_STRICT_DEVMEM option and can be overridden by the existing "iomem=relaxed" kernel command line option. - Miscellaneous fixes include a 'pfn'-device huge page alignment fix, block device shutdown crash fix, and other small libnvdimm fixes" * tag 'libnvdimm-for-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (32 commits) block: kill disk_{check|set|clear|alloc}_badblocks libnvdimm, pmem: nvdimm_read_bytes() badblocks support pmem, dax: disable dax in the presence of bad blocks pmem: fail io-requests to known bad blocks libnvdimm: convert to statically allocated badblocks libnvdimm: don't fail init for full badblocks list block, badblocks: introduce devm_init_badblocks block: clarify badblocks lifetime badblocks: rename badblocks_free to badblocks_exit libnvdimm, pmem: move definition of nvdimm_namespace_add_poison to nd.h libnvdimm: Add a poison list and export badblocks nfit_test: Enable DSMs for all test NFITs md: convert to use the generic badblocks code block: Add badblock management for gendisks badblocks: Add core badblock management code block: fix del_gendisk() vs blkdev_ioctl crash block: enable dax for raw block devices block: introduce bdev_file_inode() restrict /dev/mem to idle io memory ranges arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug ...
2016-01-13Merge tag 'spi-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds5-3/+567
Pull spi updates from Mark Brown: "A quiet release for SPI, not even many driver updates: - Add a dummy loopback driver for use in exercising framework features during development. - Move the test utilities to tools/ and add support for transferring data to and from a file instead of stdin and stdout to spidev_test. - Support for Mediatek MT2701 and Renesas AG5 deices" * tag 'spi-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (69 commits) spi: loopback: fix typo in MODULE_PARM_DESC spi: sun4i: Prevent chip-select from being activated twice before a transfer spi: loopback-test: spi_check_rx_ranges can get always done spi: loopback-test: rename method spi_test_fill_tx to spi_test_fill_pattern spi: loopback-test: write rx pattern also when running without tx_buf spi: fsl-espi: expose maximum transfer size limit spi: expose master transfer size limitation. spi: zynq: use to_platform_device() spi: cadence: use to_platform_device() spi: mediatek: Add spi support for mt2701 IC spi: mediatek: merge all identical compat to mtk_common_compat spi: mtk: Add bindings for mediatek MT2701 soc platform spi: mediatek: Prevent overflows in FIFO transfers spi: s3c64xx: Remove unused platform_device_id entries spi: use to_spi_device spi: dw: Use SPI_TMOD_TR rather than magic const 0 to set tmode spi: imx: defer spi initialization, if DMA engine is spi: imx: return error from dma channel request spi: imx: enable loopback only for ECSPI controller family spi: imx: fix loopback mode setup after controller reset ...
2016-01-13Merge tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds2-6/+20
Pull char/misc updates from Greg KH: "Here's the big set of char/misc patches for 4.5-rc1. Nothing major, lots of different driver subsystem updates, full details in the shortlog. All of these have been in linux-next for a while" * tag 'char-misc-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (71 commits) mei: fix fasync return value on error parport: avoid assignment in if parport: remove unneeded space parport: change style of NULL comparison parport: remove unnecessary out of memory message parport: remove braces parport: quoted strings should not be split parport: code indent should use tabs parport: fix coding style parport: EXPORT_SYMBOL should follow function parport: remove trailing white space parport: fix a trivial typo coresight: Fix a typo in Kconfig coresight: checking for NULL string in coresight_name_match() Drivers: hv: vmbus: Treat Fibre Channel devices as performance critical Drivers: hv: utils: fix hvt_op_poll() return value on transport destroy Drivers: hv: vmbus: fix the building warning with hyperv-keyboard extcon: add Maxim MAX3355 driver Drivers: hv: ring_buffer: eliminate hv_ringbuffer_peek() Drivers: hv: remove code duplication between vmbus_recvpacket()/vmbus_recvpacket_raw() ...
2016-01-13selftests/x86: Test __kernel_sigreturn and __kernel_rt_sigreturnAndy Lutomirski2-1/+90
The vdso-based sigreturn mechanism is fragile and isn't used by modern glibc so, if we break it, we'll only notice when someone tests an unusual libc. Add an explicit selftest. [ I wrote this while debugging a Bionic breakage -- my first guess was that I had somehow messed up sigreturn. I've caused problems in that code before, and it's really easy to fail to notice it because there's nothing on a modern distro that needs vdso-based sigreturn. ] Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/32946d714156879cd8e5d8eab044cd07557ed558.1452628504.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-12Merge tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds13-172/+637
Pull oower management and ACPI updates from Rafael Wysocki: "As far as the number of commits goes, ACPICA takes the lead this time, followed by cpufreq and the device properties framework changes. The most significant new feature is the debugfs-based interface to the ACPICA's AML debugger added in the previous cycle and a new user space tool for accessing it. On the cpufreq front, the core is updated to handle governors more efficiently, particularly on systems where a single cpufreq policy object is shared between multiple CPUs, and there are quite a few changes in drivers (intel_pstate, cpufreq-dt etc). The device properties framework is updated to handle built-in (ie included in the kernel itself) device properties better, among other things by adding a fallback mechanism that will allow drivers to provide default properties to be used in case the plaform firmware doesn't provide the properties expected by them. The Operating Performance Points (OPP) framework gets new DT bindings and debugfs support. A new cpufreq driver for ST platforms is added and the ACPI driver for AMD SoCs will now support the APM X-Gene ACPI I2C device. The rest is mostly fixes and cleanups all over. Specifics: - Add a debugfs-based interface for interacting with the ACPICA's AML debugger introduced in the previous cycle and a new user space tool for that, fix some bugs related to the AML debugger and clean up the code in question (Lv Zheng, Dan Carpenter, Colin Ian King, Markus Elfring). - Update ACPICA to upstream revision 20151218 including a number of fixes and cleanups in the ACPICA core (Bob Moore, Lv Zheng, Labbe Corentin, Prarit Bhargava, Colin Ian King, David E Box, Rafael Wysocki). In particular, the previously added erroneous support for the _SUB object is dropped, the concatenate operator will support all ACPI objects now, the Debug Object handling is improved, the SuperName handling of parameters being control methods is fixed, the ObjectType operator handling is updated to follow ACPI 5.0A and the handling of CondRefOf and RefOf is updated accordingly, module- level code will be executed after loading each ACPI table now (instead of being run once after all tables containing AML have been loaded), the Operation Region handlers management is updated to fix some reported problems and a the ACPICA code in the kernel is more in line with the upstream now. - Update the ACPI backlight driver to provide information on whether or not it will generate key-presses for brightness change hotkeys and update some platform drivers (dell-wmi, thinkpad_acpi) to use that information to avoid sending double key-events to users pace for these, add new ACPI backlight quirks (Hans de Goede, Aaron Lu, Adrien Schildknecht). - Improve the ACPI handling of interrupt GPIOs (Christophe Ricard). - Fix the handling of the list of device IDs of device objects found in the ACPI namespace and add a helper for checking if there is a device object for a given device ID (Lukas Wunner). - Change the logic in the ACPI namespace scanning code to create struct acpi_device objects for all ACPI device objects found in the namespace even if _STA fails for them which helps to avoid device enumeration problems on Microsoft Surface 3 (Aaron Lu). - Add support for the APM X-Gene ACPI I2C device to the ACPI driver for AMD SoCs (Loc Ho). - Fix the long-standing issue with the DMA controller on Intel SoCs where ACPI tables have no power management support for the DMA controller itself, but it can be powered off automatically when the last (other) device on the SoC is powered off via ACPI and clean up the ACPI driver for Intel SoCs (acpi-lpss) after previous attempts to fix that problem (Andy Shevchenko). - Assorted ACPI fixes and cleanups (Andy Lutomirski, Colin Ian King, Javier Martinez Canillas, Ken Xue, Mathias Krause, Rafael Wysocki, Sinan Kaya). - Update the device properties framework for better handling of built-in properties, add support for built-in properties to the platform bus type, update the MFD subsystem's handling of device properties and add support for passing default configuration data as device properties to the intel-lpss MFD drivers, convert the designware I2C driver to use the unified device properties API and add a fallback mechanism for using default built-in properties if the platform firmware fails to provide the properties as expected by drivers (Andy Shevchenko, Mika Westerberg, Heikki Krogerus, Andrew Morton). - Add new Device Tree bindings to the Operating Performance Points (OPP) framework and update the exynos4412 DT binding accordingly, introduce debugfs support for the OPP framework (Viresh Kumar, Bartlomiej Zolnierkiewicz). - Migrate the mt8173 cpufreq driver to the new OPP bindings (Pi-Cheng Chen). - Update the cpufreq core to make the handling of governors more efficient, especially on systems where policy objects are shared between multiple CPUs (Viresh Kumar, Rafael Wysocki). - Fix cpufreq governor handling on configurations with CONFIG_HZ_PERIODIC set (Chen Yu). - Clean up the cpufreq core code related to the boost sysfs knob support and update the ACPI cpufreq driver accordingly (Rafael Wysocki). - Add a new cpufreq driver for ST platforms and corresponding Device Tree bindings (Lee Jones). - Update the intel_pstate driver to allow the P-state selection algorithm used by it to depend on the CPU ID of the processor it is running on, make it use a special P-state selection algorithm (with an IO wait time compensation tweak) on Atom CPUs based on the Airmont and Silvermont cores so as to reduce their energy consumption and improve intel_pstate documentation (Philippe Longepe, Srinivas Pandruvada). - Update the cpufreq-dt driver to support registering cooling devices that use the (P * V^2 * f) dynamic power draw formula where V is the voltage, f is the frequency and P is a constant coefficient provided by Device Tree and update the arm_big_little cpufreq driver to use that support (Punit Agrawal). - Assorted cpufreq driver (cpufreq-dt, qoriq, pcc-cpufreq, blackfin-cpufreq) updates (Andrzej Hajda, Hongtao Jia, Jacob Tanenbaum, Markus Elfring). - cpuidle core tweaks related to polling and measured_us calculation (Rik van Riel). - Removal of modularity from a few cpuidle drivers (clps711x, ux500, exynos) that cannot be built as modules in practice (Paul Gortmaker). - PM core update to prevent devices from being probed during system suspend/resume which is generally problematic and may lead to inconsistent behavior (Grygorii Strashko). - Assorted updates of the PM core and related code (Julia Lawall, Manuel Pégourié-Gonnard, Maruthi Bayyavarapu, Rafael Wysocki, Ulf Hansson). - PNP bus type updates (Christophe Le Roy, Heiner Kallweit). - PCI PM code cleanups (Jarkko Nikula, Julia Lawall). - cpupower tool updates (Jacob Tanenbaum, Thomas Renninger)" * tag 'pm+acpi-4.5-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (177 commits) PM / clk: don't leave clocks enabled when driver not bound i2c: dw: Add APM X-Gene ACPI I2C device support ACPI / APD: Add APM X-Gene ACPI I2C device support ACPI / LPSS: change 'does not have' to 'has' in comment Revert "dmaengine: dw: platform: provide platform data for Intel" dmaengine: dw: return immediately from IRQ when DMA isn't in use dmaengine: dw: platform: power on device on shutdown ACPI / LPSS: override power state for LPSS DMA device PM / OPP: Use snprintf() instead of sprintf() Documentation: cpufreq: intel_pstate: enhance documentation ACPI, PCI, irq: remove redundant check for null string pointer ACPI / video: driver must be registered before checking for keypresses cpufreq-dt: fix handling regulator_get_voltage() result cpufreq: governor: Fix negative idle_time when configured with CONFIG_HZ_PERIODIC PM / sleep: Add support for read-only sysfs attributes ACPI: Fix white space in a structure definition ACPI / SBS: fix inconsistent indenting inside if statement PNP: respect PNP_DRIVER_RES_DO_NOT_CHANGE when detaching ACPI / PNP: constify device IDs ACPI / PCI: Simplify acpi_penalize_isa_irq() ...
2016-01-12Merge tag 'trace-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds1-0/+90
Pull tracing updates from Steven Rostedt: "Not much new with tracing for this release. Mostly just clean ups and minor fixes. Here's what else is new: - A new TRACE_EVENT_FN_COND macro, combining both _FN and _COND for those that want both. - New selftest to test the instance create and delete - Better debug output when ftrace fails" * tag 'trace-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (24 commits) ftrace: Fix the race between ftrace and insmod ftrace: Add infrastructure for delayed enabling of module functions x86: ftrace: Fix the comments for ftrace_modify_code_direct() tracing: Fix comment to use tracing_on over tracing_enable metag: ftrace: Fix the comments for ftrace_modify_code sh: ftrace: Fix the comments for ftrace_modify_code() ia64: ftrace: Fix the comments for ftrace_modify_code() ftrace: Clean up ftrace_module_init() code ftrace: Join functions ftrace_module_init() and ftrace_init_module() tracing: Introduce TRACE_EVENT_FN_COND macro tracing: Use seq_buf_used() in seq_buf_to_user() instead of len bpf: Constify bpf_verifier_ops structure ftrace: Have ftrace_ops_get_func() handle RCU and PER_CPU flags too ftrace: Remove use of control list and ops ftrace: Fix output of enabled_functions for showing tramp ftrace: Fix a typo in comment ftrace: Show all tramps registered to a record on ftrace_bug() ftrace: Add variable ftrace_expected for archs to show expected code ftrace: Add new type to distinguish what kind of ftrace_bug() tracing: Update cond flag when enabling or disabling a trigger ...
2016-01-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds3-1/+516
Pull networking updates from Davic Miller: 1) Support busy polling generically, for all NAPI drivers. From Eric Dumazet. 2) Add byte/packet counter support to nft_ct, from Floriani Westphal. 3) Add RSS/XPS support to mvneta driver, from Gregory Clement. 4) Implement IPV6_HDRINCL socket option for raw sockets, from Hannes Frederic Sowa. 5) Add support for T6 adapter to cxgb4 driver, from Hariprasad Shenai. 6) Add support for VLAN device bridging to mlxsw switch driver, from Ido Schimmel. 7) Add driver for Netronome NFP4000/NFP6000, from Jakub Kicinski. 8) Provide hwmon interface to mlxsw switch driver, from Jiri Pirko. 9) Reorganize wireless drivers into per-vendor directories just like we do for ethernet drivers. From Kalle Valo. 10) Provide a way for administrators "destroy" connected sockets via the SOCK_DESTROY socket netlink diag operation. From Lorenzo Colitti. 11) Add support to add/remove multicast routes via netlink, from Nikolay Aleksandrov. 12) Make TCP keepalive settings per-namespace, from Nikolay Borisov. 13) Add forwarding and packet duplication facilities to nf_tables, from Pablo Neira Ayuso. 14) Dead route support in MPLS, from Roopa Prabhu. 15) TSO support for thunderx chips, from Sunil Goutham. 16) Add driver for IBM's System i/p VNIC protocol, from Thomas Falcon. 17) Rationalize, consolidate, and more completely document the checksum offloading facilities in the networking stack. From Tom Herbert. 18) Support aborting an ongoing scan in mac80211/cfg80211, from Vidyullatha Kanchanapally. 19) Use per-bucket spinlock for bpf hash facility, from Tom Leiming. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1375 commits) net: bnxt: always return values from _bnxt_get_max_rings net: bpf: reject invalid shifts phonet: properly unshare skbs in phonet_rcv() dwc_eth_qos: Fix dma address for multi-fragment skbs phy: remove an unneeded condition mdio: remove an unneed condition mdio_bus: NULL dereference on allocation error net: Fix typo in netdev_intersect_features net: freescale: mac-fec: Fix build error from phy_device API change net: freescale: ucc_geth: Fix build error from phy_device API change bonding: Prevent IPv6 link local address on enslaved devices IB/mlx5: Add flow steering support net/mlx5_core: Export flow steering API net/mlx5_core: Make ipv4/ipv6 location more clear net/mlx5_core: Enable flow steering support for the IB driver net/mlx5_core: Initialize namespaces only when supported by device net/mlx5_core: Set priority attributes net/mlx5_core: Connect flow tables net/mlx5_core: Introduce modify flow table command net/mlx5_core: Managing root flow table ...
2016-01-12Merge branch 'for-linus-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds1-3/+24
Pull UML updates from Richard Weinberger: "This contains beside of random fixes/cleanups two bigger changes: - seccomp support by Mickaël Salaün - IRQ rework by Anton Ivanov" * 'for-linus-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: Use race-free temporary file creation um: Do not set unsecure permission for temporary file um: Fix build error and kconfig for i386 um: Add seccomp support um: Add full asm/syscall.h support selftests/seccomp: Remove the need for HAVE_ARCH_TRACEHOOK um: Fix ptrace GETREGS/SETREGS bugs um: link with -lpthread um: Update UBD to use pread/pwrite family of functions um: Do not change hard IRQ flags in soft IRQ processing um: Prevent IRQ handler reentrancy uml: flush stdout before forking uml: fix hostfs mknod()
2016-01-12perf tools: Fallback to srcdir/Documentation/tips.txtNamhyung Kim2-6/+15
Some people don't install perf, but just use compiled version in the source. Fallback to lookup the source directory for those poor guys. :) Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452334589-8782-4-git-send-email-namhyung@kernel.org [ Make perf_tip() return NULL for ENOENT, making the fallback to really take place ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-12perf ui/tui: Print helpline message as isNamhyung Kim1-1/+1
When a tip message contains a percent sign, it was treated printf format specifier so broken string was printed like below. Tip: Limit to show entries above 577nly: perf report --percent-limit 5 ^^^ As ui_browser__show receives format string, pass additional "%s" so that the help (tip) message can be printed as is. Tip: Limit to show entries above 5% only: perf report --percent-limit 5 Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452509594-13616-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-12perf tools: Set and pass DOCDIR to builtin-report.cNamhyung Kim2-0/+4
It'll be used to locate perf document directory to find tips.txt in case it's not installed on the system. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452334589-8782-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-12perf tools: Add file_only config option to strlistNamhyung Kim2-1/+16
If strlist_config.dirname is present, the strlist__new() tries to load stirngs from dirname/list file first but if it failes it falls back to add 'list' as string. But sometimes it's not desired so adds new file_only field to prevent it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452334589-8782-2-git-send-email-namhyung@kernel.org [ Add documentation for strlist_config::file_only, in the struct definition */ Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-12perf tools: Add more usage tipsNamhyung Kim1-0/+15
Thanks to Andi Kleen for providing useful tips. Suggested-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452508510-28316-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-12perf record: Add --buildid-all optionNamhyung Kim2-6/+23
The --buildid-all option is to record build-id of all DSOs in the file. It might be very costly to postprocess samples to find which DSO hits. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1452519429-31779-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-01-12tools subcmd: Add missing NORETURN define for parse-options.hJosh Poimboeuf1-0/+4
parse-options.h uses the NORETURN macro without defining it. perf doesn't see a build error because it defines the macro in util.h before including parse-options.h. But any other tool including it will see an error. Define the macro in parse-options.h (if not already defined) so that other tools can include it. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris J Arges <chris.j.arges@canonical.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Pedro Alves <palves@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/6c16294ac6dbe5e2ca28fd935fe4389996588564.1450442274.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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