Thread (65 messages) 65 messages, 3 authors, 2022-01-11

Re: [PATCH v3 06/48] perf cpumap: Switch cpu_map__build_map to cpu function

From: Arnaldo Carvalho de Melo <acme@kernel.org>
Date: 2022-01-10 21:03:11
Also in: linux-perf-users, lkml

Em Mon, Jan 10, 2022 at 05:46:52PM -0300, Arnaldo Carvalho de Melo escreveu:
Em Wed, Dec 29, 2021 at 11:19:48PM -0800, Ian Rogers escreveu:
quoted
Avoid error prone cpu_map + idx variant. Remove now unused functions.
At this point we need to remove the now unused perf_env__get_cpu(), and
then deal with the fallout in the following patches that needlessly
modify this unused function.

Doing that now.
Done, force pushed to tmp.perf/perf_cpu, now it is going again thru the
build containers, a better start now:

[perfbuilder@five ~]$ export BUILD_TARBALL=http://192.168.100.2/perf/perf-5.16.0.tar.xz
[perfbuilder@five ~]$ time dm
   1    95.61 almalinux:8                   : Ok   gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4) , clang version 12.0.1 (Red Hat 12.0.1-4.module_el8.5.0+1025+93159d6c)
   2    56.18 alpine:3.4                    : Ok   gcc (Alpine 5.3.0) 5.3.0 , clang version 3.8.0 (tags/RELEASE_380/final)
   3: alpine:3.5


- Arnaldo
 
quoted hunk ↗ jump to hunk
⬢[acme@toolbox perf]$ git diff
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 6b985abaa2d22c58..40cb3518f27e2309 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1477,22 +1477,6 @@ static void perf_stat__exit_aggr_mode(void)
        stat_config.cpus_aggr_map = NULL;
 }

-static inline int perf_env__get_cpu(void *data, struct perf_cpu_map *map, int idx)
-{
-       struct perf_env *env = data;
-       int cpu;
-
-       if (idx > map->nr)
-               return -1;
-
-       cpu = map->map[idx];
-
-       if (cpu >= env->nr_cpus_avail)
-               return -1;
-
-       return cpu;
-}
-
 static struct aggr_cpu_id perf_env__get_socket_aggr_by_cpu(int cpu, void *data)
 {
        struct perf_env *env = data;
 
quoted
Reviewed-by: James Clark <redacted>
Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/builtin-stat.c | 28 ++++------------------------
 tools/perf/util/cpumap.c  | 12 ++++++------
 tools/perf/util/cpumap.h  |  2 +-
 3 files changed, 11 insertions(+), 31 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 9791ae9b1a53..6b985abaa2d2 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1504,11 +1504,6 @@ static struct aggr_cpu_id perf_env__get_socket_aggr_by_cpu(int cpu, void *data)
 	return id;
 }
 
-static struct aggr_cpu_id perf_env__get_socket(struct perf_cpu_map *map, int idx, void *data)
-{
-	return perf_env__get_socket_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
-}
-
 static struct aggr_cpu_id perf_env__get_die_aggr_by_cpu(int cpu, void *data)
 {
 	struct perf_env *env = data;
@@ -1527,11 +1522,6 @@ static struct aggr_cpu_id perf_env__get_die_aggr_by_cpu(int cpu, void *data)
 	return id;
 }
 
-static struct aggr_cpu_id perf_env__get_die(struct perf_cpu_map *map, int idx, void *data)
-{
-	return perf_env__get_die_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
-}
-
 static struct aggr_cpu_id perf_env__get_core_aggr_by_cpu(int cpu, void *data)
 {
 	struct perf_env *env = data;
@@ -1551,11 +1541,6 @@ static struct aggr_cpu_id perf_env__get_core_aggr_by_cpu(int cpu, void *data)
 	return id;
 }
 
-static struct aggr_cpu_id perf_env__get_core(struct perf_cpu_map *map, int idx, void *data)
-{
-	return perf_env__get_core_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
-}
-
 static struct aggr_cpu_id perf_env__get_node_aggr_by_cpu(int cpu, void *data)
 {
 	struct aggr_cpu_id id = cpu_map__empty_aggr_cpu_id();
@@ -1564,33 +1549,28 @@ static struct aggr_cpu_id perf_env__get_node_aggr_by_cpu(int cpu, void *data)
 	return id;
 }
 
-static struct aggr_cpu_id perf_env__get_node(struct perf_cpu_map *map, int idx, void *data)
-{
-	return perf_env__get_node_aggr_by_cpu(perf_env__get_cpu(data, map, idx), data);
-}
-
 static int perf_env__build_socket_map(struct perf_env *env, struct perf_cpu_map *cpus,
 				      struct cpu_aggr_map **sockp)
 {
-	return cpu_map__build_map(cpus, sockp, perf_env__get_socket, env);
+	return cpu_map__build_map(cpus, sockp, perf_env__get_socket_aggr_by_cpu, env);
 }
 
 static int perf_env__build_die_map(struct perf_env *env, struct perf_cpu_map *cpus,
 				   struct cpu_aggr_map **diep)
 {
-	return cpu_map__build_map(cpus, diep, perf_env__get_die, env);
+	return cpu_map__build_map(cpus, diep, perf_env__get_die_aggr_by_cpu, env);
 }
 
 static int perf_env__build_core_map(struct perf_env *env, struct perf_cpu_map *cpus,
 				    struct cpu_aggr_map **corep)
 {
-	return cpu_map__build_map(cpus, corep, perf_env__get_core, env);
+	return cpu_map__build_map(cpus, corep, perf_env__get_core_aggr_by_cpu, env);
 }
 
 static int perf_env__build_node_map(struct perf_env *env, struct perf_cpu_map *cpus,
 				    struct cpu_aggr_map **nodep)
 {
-	return cpu_map__build_map(cpus, nodep, perf_env__get_node, env);
+	return cpu_map__build_map(cpus, nodep, perf_env__get_node_aggr_by_cpu, env);
 }
 
 static struct aggr_cpu_id perf_stat__get_socket_file(struct perf_stat_config *config __maybe_unused,
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 49fba2c53822..feaf34b25efc 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -163,7 +163,7 @@ static int cmp_aggr_cpu_id(const void *a_pointer, const void *b_pointer)
 }
 
 int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
-		       struct aggr_cpu_id (*f)(struct perf_cpu_map *map, int cpu, void *data),
+		       struct aggr_cpu_id (*f)(int cpu, void *data),
 		       void *data)
 {
 	int nr = cpus->nr;
@@ -178,7 +178,7 @@ int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
 	c->nr = 0;
 
 	for (cpu = 0; cpu < nr; cpu++) {
-		s1 = f(cpus, cpu, data);
+		s1 = f(cpu, data);
 		for (s2 = 0; s2 < c->nr; s2++) {
 			if (cpu_map__compare_aggr_cpu_id(s1, c->map[s2]))
 				break;
@@ -290,22 +290,22 @@ struct aggr_cpu_id cpu_map__get_node(struct perf_cpu_map *map, int idx, void *da
 
 int cpu_map__build_socket_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **sockp)
 {
-	return cpu_map__build_map(cpus, sockp, cpu_map__get_socket, NULL);
+	return cpu_map__build_map(cpus, sockp, cpu_map__get_socket_aggr_by_cpu, NULL);
 }
 
 int cpu_map__build_die_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **diep)
 {
-	return cpu_map__build_map(cpus, diep, cpu_map__get_die, NULL);
+	return cpu_map__build_map(cpus, diep, cpu_map__get_die_aggr_by_cpu, NULL);
 }
 
 int cpu_map__build_core_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **corep)
 {
-	return cpu_map__build_map(cpus, corep, cpu_map__get_core, NULL);
+	return cpu_map__build_map(cpus, corep, cpu_map__get_core_aggr_by_cpu, NULL);
 }
 
 int cpu_map__build_node_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **numap)
 {
-	return cpu_map__build_map(cpus, numap, cpu_map__get_node, NULL);
+	return cpu_map__build_map(cpus, numap, cpu_map__get_node_aggr_by_cpu, NULL);
 }
 
 /* setup simple routines to easily access node numbers given a cpu number */
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index c62d67704425..9648816c4255 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -63,7 +63,7 @@ int cpu__max_present_cpu(void);
 int cpu__get_node(int cpu);
 
 int cpu_map__build_map(struct perf_cpu_map *cpus, struct cpu_aggr_map **res,
-		       struct aggr_cpu_id (*f)(struct perf_cpu_map *map, int cpu, void *data),
+		       struct aggr_cpu_id (*f)(int cpu, void *data),
 		       void *data);
 
 int cpu_map__cpu(struct perf_cpu_map *cpus, int idx);
-- 
2.34.1.448.ga2b2bfdf31-goog
-- 

- Arnaldo
-- 

- Arnaldo

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