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perf trace: Extract evsel contructor from perf_evlist__add_pgfault 

Prep work for next patches, where we'll need access to the created
evsels, to possibly configure callchains.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-2pcgsgnkgellhlcao4aub8tu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2016-04-19 16:00:01 -03:00
parent 70a2cba972
commit 0ae537cb35
1 changed files with 16 additions and 15 deletions
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31
tools/perf/builtin-trace.c
View File

@ -2381,8 +2381,7 @@ static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
return true;
}
static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
u64 config)
static struct perf_evsel *perf_evsel__new_pgfault(u64 config)
{
struct perf_evsel *evsel;
struct perf_event_attr attr = {
@ -2396,13 +2395,10 @@ static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
event_attr_init(&attr);
evsel = perf_evsel__new(&attr);
if (!evsel)
return -ENOMEM;
if (evsel)
evsel->handler = trace__pgfault;
evsel->handler = trace__pgfault;
perf_evlist__add(evlist, evsel);
return 0;
return evsel;
}
static void trace__handle_event(struct trace *trace, union perf_event *event, struct perf_sample *sample)
@ -2504,7 +2500,7 @@ out_enomem:
static int trace__run(struct trace *trace, int argc, const char **argv)
{
struct perf_evlist *evlist = trace->evlist;
struct perf_evsel *evsel;
struct perf_evsel *evsel, *pgfault_maj = NULL, *pgfault_min = NULL;
int err = -1, i;
unsigned long before;
const bool forks = argc > 0;
@ -2518,14 +2514,19 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
if (trace->trace_syscalls)
trace->vfs_getname = perf_evlist__add_vfs_getname(evlist);
if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
goto out_error_mem;
if ((trace->trace_pgfaults & TRACE_PFMAJ)) {
pgfault_maj = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MAJ);
if (pgfault_maj == NULL)
goto out_error_mem;
perf_evlist__add(evlist, pgfault_maj);
}
if ((trace->trace_pgfaults & TRACE_PFMIN) &&
perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MIN))
goto out_error_mem;
if ((trace->trace_pgfaults & TRACE_PFMIN)) {
pgfault_min = perf_evsel__new_pgfault(PERF_COUNT_SW_PAGE_FAULTS_MIN);
if (pgfault_min == NULL)
goto out_error_mem;
perf_evlist__add(evlist, pgfault_min);
}
if (trace->sched &&
perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",