[PATCH 40/66] libperf: Move 'heads' from 'struct evlist' to 'struct perf_evlist'

Arnaldo Carvalho de Melo
2019-09-26T00:35:25Z

Move 'heads' hash table from 'struct evlist' to 'struct perf_evlist'.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lore.kernel.org/lkml/20190913132355.21634-27-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/lib/evlist.c | 4 ++++
tools/perf/lib/include/internal/evlist.h | 4 ++++
tools/perf/util/evlist.c | 10 +++-------
tools/perf/util/evlist.h | 4 ----
4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/tools/perf/lib/evlist.c b/tools/perf/lib/evlist.c
index f4dc9a208332..2bdd9d2c79d9 100644
--- a/tools/perf/lib/evlist.c
+++ b/tools/perf/lib/evlist.c
@@ -11,6 +11,10 @@

void perf_evlist__init(struct perf_evlist *evlist)
{
+ int i;
+
+ for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i)
+ INIT_HLIST_HEAD(&evlist->heads[i]);
INIT_LIST_HEAD(&evlist->entries);
evlist->nr_entries = 0;
}
diff --git a/tools/perf/lib/include/internal/evlist.h b/tools/perf/lib/include/internal/evlist.h
index 8a4eb66fbf3a..c5a06890fd6a 100644
--- a/tools/perf/lib/include/internal/evlist.h
+++ b/tools/perf/lib/include/internal/evlist.h
@@ -5,6 +5,9 @@
#include <linux/list.h>
#include <api/fd/array.h>

+#define PERF_EVLIST__HLIST_BITS 8
+#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
+
struct perf_cpu_map;
struct perf_thread_map;

@@ -17,6 +20,7 @@ struct perf_evlist {
int nr_mmaps;
size_t mmap_len;
struct fdarray pollfd;
+ struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
};

/**
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 5e43fb9da359..c6af7c622612 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -55,10 +55,6 @@ int sigqueue(pid_t pid, int sig, const union sigval value);
void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus,
struct perf_thread_map *threads)
{
- int i;
-
- for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i)
- INIT_HLIST_HEAD(&evlist->heads[i]);
perf_evlist__init(&evlist->core);
perf_evlist__set_maps(&evlist->core, cpus, threads);
fdarray__init(&evlist->core.pollfd, 64);
@@ -475,7 +471,7 @@ static void perf_evlist__id_hash(struct evlist *evlist,
sid->id = id;
sid->evsel = evsel;
hash = hash_64(sid->id, PERF_EVLIST__HLIST_BITS);
- hlist_add_head(&sid->node, &evlist->heads[hash]);
+ hlist_add_head(&sid->node, &evlist->core.heads[hash]);
}

void perf_evlist__id_add(struct evlist *evlist, struct evsel *evsel,
@@ -549,7 +545,7 @@ struct perf_sample_id *perf_evlist__id2sid(struct evlist *evlist, u64 id)
int hash;

hash = hash_64(id, PERF_EVLIST__HLIST_BITS);
- head = &evlist->heads[hash];
+ head = &evlist->core.heads[hash];

hlist_for_each_entry(sid, head, node)
if (sid->id == id)
@@ -635,7 +631,7 @@ struct evsel *perf_evlist__event2evsel(struct evlist *evlist,
return first;

hash = hash_64(id, PERF_EVLIST__HLIST_BITS);
- head = &evlist->heads[hash];
+ head = &evlist->core.heads[hash];

hlist_for_each_entry(sid, head, node) {
if (sid->id == id)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 4fcdf93eb19c..ad9c0ba57a91 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -48,12 +48,8 @@ enum bkw_mmap_state {
BKW_MMAP_EMPTY,
};

-#define PERF_EVLIST__HLIST_BITS 8
-#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
-
struct evlist {
struct perf_evlist core;
- struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
int nr_groups;
bool enabled;
int id_pos;
--
2.21.0