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perf c2c: Refactor hist entry validation

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This patch has no functionality changes but refactors hist entry
validation for cache line resorting.

It renames function "valid_hitm_or_store()" to "is_valid_hist_entry()",
changes return type from integer type to bool type.  In the function,
it uses switch-case instead of ternary operators, which is easier
to extend for more display types.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210114154646.209024-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Leo Yan 2021-01-14 23:46:42 +08:00 committed by Arnaldo Carvalho de Melo
parent 1834436e34
commit 2290e1d619
1 changed files with 23 additions and 7 deletions
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30
tools/perf/builtin-c2c.c
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@ -1888,16 +1888,32 @@ static bool he__display(struct hist_entry *he, struct c2c_stats *stats)
return he->filtered == 0;
}
static inline int valid_hitm_or_store(struct hist_entry *he)
static inline bool is_valid_hist_entry(struct hist_entry *he)
{
struct c2c_hist_entry *c2c_he;
bool has_hitm;
bool has_record = false;
c2c_he = container_of(he, struct c2c_hist_entry, he);
has_hitm = c2c.display == DISPLAY_TOT ? c2c_he->stats.tot_hitm :
c2c.display == DISPLAY_LCL ? c2c_he->stats.lcl_hitm :
c2c_he->stats.rmt_hitm;
return has_hitm || c2c_he->stats.store;
/* It's a valid entry if contains stores */
if (c2c_he->stats.store)
return true;
switch (c2c.display) {
case DISPLAY_LCL:
has_record = !!c2c_he->stats.lcl_hitm;
break;
case DISPLAY_RMT:
has_record = !!c2c_he->stats.rmt_hitm;
break;
case DISPLAY_TOT:
has_record = !!c2c_he->stats.tot_hitm;
break;
default:
break;
}
return has_record;
}
static void set_node_width(struct c2c_hist_entry *c2c_he, int len)
@ -1951,7 +1967,7 @@ static int filter_cb(struct hist_entry *he, void *arg __maybe_unused)
calc_width(c2c_he);
if (!valid_hitm_or_store(he))
if (!is_valid_hist_entry(he))
he->filtered = HIST_FILTER__C2C;
return 0;