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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse source 
Pull perf fixes from Ingo Molnar:
 "Two hw-enablement patches, two race fixes, three fixes for regressions
  of semantics, plus a number of tooling fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel: Add proper condition to run sched_task callbacks
  perf/core: Fix locking for children siblings group read
  perf/core: Fix scheduling regression of pinned groups
  perf/x86/intel: Fix debug_store reset field for freq events
  perf/x86/intel: Add Goldmont Plus CPU PMU support
  perf/x86/intel: Enable C-state residency events for Apollo Lake
  perf symbols: Accept zero as the kernel base address
  Revert "perf/core: Drop kernel samples even though :u is specified"
  perf annotate: Fix broken arrow at row 0 connecting jmp instruction to its target
  perf evsel: State in the default event name if attr.exclude_kernel is set
  perf evsel: Fix attr.exclude_kernel setting for default cycles:p
This commit is contained in:
Linus Torvalds 2017-07-21 11:12:48 -07:00
commit bbcdea658f
9 changed files with 221 additions and 42 deletions
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2
tools/perf/ui/browser.c
View file

@ -704,7 +704,7 @@ static void __ui_browser__line_arrow_down(struct ui_browser *browser,
ui_browser__gotorc(browser, row, column + 1);
SLsmg_draw_hline(2);
if (row++ == 0)
if (++row == 0)
goto out;
} else
row = 0;

8
tools/perf/util/evsel.c
View file

@ -273,7 +273,7 @@ struct perf_evsel *perf_evsel__new_cycles(void)
struct perf_event_attr attr = {
.type = PERF_TYPE_HARDWARE,
.config = PERF_COUNT_HW_CPU_CYCLES,
.exclude_kernel = 1,
.exclude_kernel = geteuid() != 0,
};
struct perf_evsel *evsel;
@ -298,8 +298,10 @@ struct perf_evsel *perf_evsel__new_cycles(void)
goto out;
/* use asprintf() because free(evsel) assumes name is allocated */
if (asprintf(&evsel->name, "cycles%.*s",
attr.precise_ip ? attr.precise_ip + 1 : 0, ":ppp") < 0)
if (asprintf(&evsel->name, "cycles%s%s%.*s",
(attr.precise_ip || attr.exclude_kernel) ? ":" : "",
attr.exclude_kernel ? "u" : "",
attr.precise_ip ? attr.precise_ip + 1 : 0, "ppp") < 0)
goto error_free;
out:
return evsel;

2
tools/perf/util/machine.c
View file

@ -2209,7 +2209,7 @@ int machine__get_kernel_start(struct machine *machine)
machine->kernel_start = 1ULL << 63;
if (map) {
err = map__load(map);
if (map->start)
if (!err)
machine->kernel_start = map->start;
}
return err;