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[PATCH v12 0/3] perf config: Reimplement perf_config()

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  [PATCH v12 0/3] perf config: Reimplement perf_config() Taeung Song <treeze.taeung@gmail.com> - 2016-06-23 16:20 +0200
    [PATCH v12 2/3] perf config: Reimplement perf_config() introducing new perf_config__init() and perf_config__finish() Taeung Song <treeze.taeung@gmail.com> - 2016-06-23 16:20 +0200
      [tip:perf/core] perf config: Introduce new init() and exit() tip-bot for Taeung Song <tipbot@zytor.com> - 2016-06-26 13:10 +0200
    [PATCH v12 1/3] perf config: Bring declarations about config from util/cache.h to util/config.h Taeung Song <treeze.taeung@gmail.com> - 2016-06-23 16:20 +0200

#1429879 — [PATCH v12 0/3] perf config: Reimplement perf_config()

Hello, :)

This patchset is to reimplement perf_config() for efficient config management.

Many sub-commands use perf_config() but
everytime perf_config() is called, perf_config() always read config files.
(i.e. user config '~/.perfconfig' and system config '$(sysconfdir)/perfconfig')

But it is better to use the config set that already contains all config
key-value pairs to avoid this repetitive work reading the config files
in perf_config().

In summary, in order to use features about configuration,
we can call the functions at perf.c and other source files as below.

    # initialize a config set
    perf_config__init()

    # configure actual variables from a config set
    perf_config()

    # eliminate allocated config set
    perf_config__finish()

    # destroy existing config set and initialize a new config set.
    perf_config__refresh()

IMHO, I think this patchset is needed because not only the repetitive work
should be avoided but also in near future, it would be smooth to manage perf configs.

If you give me any feedback, I'd apprecicated it. :)

Thanks,
Taeung

v12:
- append '_entry' to macros at util/config.h (Arnaldo)

v11:
- rename the functions and the macros (Arnaldo)
  adding double underscore '__' to perf_config_* functions like perf_config__init
  and adding a prefix name 'perf_' to the macros at util/config.h
- applied ([PATCH v10 1/3]), but this patchset include it too

v10:
- rebased onto current acme/perf/core

v9:
- add config_set__for_each macro (Arnaldo)
- the source files that only need config.h don't include cache.h (Arnaldo)
- use 'config_set' as a static variable instead of a global variable. (Namhyung)
- add perf_config_init(), perf_config_finish() and perf_config_refresh() (Namhyung)
- remove [PATCH v8 4/5] perf config: Use zfree() instead of free() at perf_config_set__delete()
- rebased onto current acme/perf/core
- applied ([BUGFIX][PATCH v8 1/5] 826424)

v8:
- handle the error about NULL at perf_config_set__delete()
- bring declarations about config from util/config.h to util/config.h
- reimplement show_config() using perf_config_set__iter() instead of perf_config()
- rebased onto perf-core-for-mingo-20160607
- applied ([PATCH v7 1/7] 25d8f48, [PATCH v7 2/7] 8beeb00)

v7:
- fill a missing crumb that assign NULL to 'set' variable in perf_config_set__new()
  (Arnaldo)
- two patches applied ([PATCH v6 1/9] 78f71c9, [PATCH v6 3/9] 7db91f2)

v6:
- add printing error message when perf_config_set__iter() is failed
- modify commit messages for bugfix 1~3 (PATCH 1/9 ~ 3/9)
  to help reviewers easily understand why them is needed

v5:
- solve the leak when perf_config_set__init() failed (Arnaldo)
  (to clear the problem it is needed to apply the bottom bugfix 1~3 patches)
- bugfix 1) fix the problem of abnormal terminaltion at perf_parse_file() called by perf_config()
- bugfix 2) if failed at collect_config(), finally free a config set
            after it is done instead of freeing the config set in the function
- bugfix 3) handle NULL pointer exception of 'set' at collect_config()

v4:
- Keep perf_config_set__delete() as it is (Arnaldo)
- Remove perf_config_set__check() (Arnaldo)
- Keep the existing code about the config set at cmd_config() (Arnaldo)

v3:
- add freeing config set after sub-command work at run_builtin() (Namhyung)
- remove needless code about the config set at cmd_config()
- add a patch about a global variable 'config_set'

v2:
- split a patch into several patches
- reimplement show_config() using new perf_config()
- modify perf_config_set__delete using global variable 'config_set'
- reset config set when only 'config' sub-commaned work
  because of options for config file location

Taeung Song (3):
  perf config: Bring declarations about config from util/cache.h to
    util/config.h
  perf config: Reimplement perf_config() introducing new
    perf_config__init() and perf_config__finish()
  perf config: Reimplement show_config() using config_set__for_each

 tools/perf/builtin-config.c        | 21 ++++-----
 tools/perf/builtin-help.c          |  2 +-
 tools/perf/builtin-kmem.c          |  2 +-
 tools/perf/builtin-record.c        |  1 +
 tools/perf/builtin-report.c        |  2 +-
 tools/perf/builtin-top.c           |  2 +-
 tools/perf/perf.c                  |  4 +-
 tools/perf/ui/browser.c            |  2 +-
 tools/perf/ui/browsers/annotate.c  |  1 +
 tools/perf/util/alias.c            |  1 +
 tools/perf/util/cache.h            | 11 -----
 tools/perf/util/color.c            |  1 +
 tools/perf/util/config.c           | 92 +++++++++++++++++++-------------------
 tools/perf/util/config.h           | 40 +++++++++++++++++
 tools/perf/util/help-unknown-cmd.c |  1 +
 tools/perf/util/intel-pt.c         |  1 +
 tools/perf/util/llvm-utils.c       |  1 +
 17 files changed, 111 insertions(+), 74 deletions(-)

-- 
2.5.0

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#1429881 — [PATCH v12 2/3] perf config: Reimplement perf_config() introducing new perf_config__init() and perf_config__finish()

Many sub-commands use perf_config() but
everytime perf_config() is called, perf_config() always read config files.
(i.e. user config '~/.perfconfig' and system config '$(sysconfdir)/perfconfig')

But it is better to use the config set that already contains all config
key-value pairs to avoid this repetitive work reading the config files
in perf_config(). (the config set mean a static variable 'config_set')

In other words, if new perf_config__init() is called,
only first time 'config_set' is initialized collecting all configs from the config files.
And then we could use new perf_config() like old perf_config().
When a sub-command finished, free the config set by perf_config__finish() at run_builtin().

If we do, 'config_set' can be reused wherever perf_config() is called
and a feature of old perf_config() is the same as new perf_config() work
without the repetitive work that read the config files.

In summary, in order to use features about configuration,
we can call the functions at perf.c and other source files as below.

    # initialize a config set
    perf_config__init()

    # configure actual variables from a config set
    perf_config()

    # eliminate allocated config set
    perf_config__finish()

    # destroy existing config set and initialize a new config set.
    perf_config__refresh()

Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
---
 tools/perf/builtin-config.c |  4 ++
 tools/perf/perf.c           |  2 +
 tools/perf/util/config.c    | 92 +++++++++++++++++++++++----------------------
 tools/perf/util/config.h    | 29 ++++++++++++++
 4 files changed, 82 insertions(+), 45 deletions(-)

diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
index fe1b77f..cfd1036 100644
--- a/tools/perf/builtin-config.c
+++ b/tools/perf/builtin-config.c
@@ -80,6 +80,10 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
 	else if (use_user_config)
 		config_exclusive_filename = user_config;
 
+	/*
+	 * At only 'config' sub-command, individually use the config set
+	 * because of reinitializing with options config file location.
+	 */
 	set = perf_config_set__new();
 	if (!set) {
 		ret = -1;
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 66772da..9d593b1 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -355,6 +355,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
 
 	perf_env__set_cmdline(&perf_env, argc, argv);
 	status = p->fn(argc, argv, prefix);
+	perf_config__finish();
 	exit_browser(status);
 	perf_env__exit(&perf_env);
 	bpf__clear();
@@ -522,6 +523,7 @@ int main(int argc, const char **argv)
 
 	srandom(time(NULL));
 
+	perf_config__init();
 	perf_config(perf_default_config, NULL);
 	set_buildid_dir(NULL);
 
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index d15c592..18a6d01 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -26,6 +26,7 @@ static FILE *config_file;
 static const char *config_file_name;
 static int config_linenr;
 static int config_file_eof;
+static struct perf_config_set *config_set;
 
 const char *config_exclusive_filename;
 
@@ -478,51 +479,6 @@ static int perf_config_global(void)
 	return !perf_env_bool("PERF_CONFIG_NOGLOBAL", 0);
 }
 
-int perf_config(config_fn_t fn, void *data)
-{
-	int ret = -1;
-	const char *home = NULL;
-
-	/* Setting $PERF_CONFIG makes perf read _only_ the given config file. */
-	if (config_exclusive_filename)
-		return perf_config_from_file(fn, config_exclusive_filename, data);
-	if (perf_config_system() && !access(perf_etc_perfconfig(), R_OK)) {
-		if (perf_config_from_file(fn, perf_etc_perfconfig(), data) < 0)
-			goto out;
-	}
-
-	home = getenv("HOME");
-	if (perf_config_global() && home) {
-		char *user_config = strdup(mkpath("%s/.perfconfig", home));
-		struct stat st;
-
-		if (user_config == NULL) {
-			warning("Not enough memory to process %s/.perfconfig, "
-				"ignoring it.", home);
-			goto out;
-		}
-
-		if (stat(user_config, &st) < 0)
-			goto out_free;
-
-		if (st.st_uid && (st.st_uid != geteuid())) {
-			warning("File %s not owned by current user or root, "
-				"ignoring it.", user_config);
-			goto out_free;
-		}
-
-		if (!st.st_size)
-			goto out_free;
-
-		ret = perf_config_from_file(fn, user_config, data);
-
-out_free:
-		free(user_config);
-	}
-out:
-	return ret;
-}
-
 static struct perf_config_section *find_section(struct list_head *sections,
 						const char *section_name)
 {
@@ -706,6 +662,52 @@ struct perf_config_set *perf_config_set__new(void)
 	return set;
 }
 
+int perf_config(config_fn_t fn, void *data)
+{
+	int ret = 0;
+	char key[BUFSIZ];
+	struct perf_config_section *section;
+	struct perf_config_item *item;
+
+	if (config_set == NULL)
+		return -1;
+
+	perf_config_set__for_each_entry(config_set, section, item) {
+		char *value = item->value;
+
+		if (value) {
+			scnprintf(key, sizeof(key), "%s.%s",
+				  section->name, item->name);
+			ret = fn(key, value, data);
+			if (ret < 0) {
+				pr_err("Error: wrong config key-value pair %s=%s\n",
+				       key, value);
+				break;
+			}
+		}
+	}
+
+	return ret;
+}
+
+void perf_config__init(void)
+{
+	if (config_set == NULL)
+		config_set = perf_config_set__new();
+}
+
+void perf_config__finish(void)
+{
+	perf_config_set__delete(config_set);
+	config_set = NULL;
+}
+
+void perf_config__refresh(void)
+{
+	perf_config__finish();
+	perf_config__init();
+}
+
 static void perf_config_item__delete(struct perf_config_item *item)
 {
 	zfree(&item->name);
diff --git a/tools/perf/util/config.h b/tools/perf/util/config.h
index 155a441..cd81d71 100644
--- a/tools/perf/util/config.h
+++ b/tools/perf/util/config.h
@@ -33,5 +33,34 @@ const char *perf_etc_perfconfig(void);
 
 struct perf_config_set *perf_config_set__new(void);
 void perf_config_set__delete(struct perf_config_set *set);
+void perf_config__init(void);
+void perf_config__finish(void);
+void perf_config__refresh(void);
+
+/**
+ * perf_config_sections__for_each - iterate thru all the sections
+ * @list: list_head instance to iterate
+ * @section: struct perf_config_section iterator
+ */
+#define perf_config_sections__for_each_entry(list, section)	\
+        list_for_each_entry(section, list, node)
+
+/**
+ * perf_config_items__for_each - iterate thru all the items
+ * @list: list_head instance to iterate
+ * @item: struct perf_config_item iterator
+ */
+#define perf_config_items__for_each_entry(list, item)	\
+        list_for_each_entry(item, list, node)
+
+/**
+ * perf_config_set__for_each - iterate thru all the config section-item pairs
+ * @set: evlist instance to iterate
+ * @section: struct perf_config_section iterator
+ * @item: struct perf_config_item iterator
+ */
+#define perf_config_set__for_each_entry(set, section, item)			\
+	perf_config_sections__for_each_entry(&set->sections, section)		\
+	perf_config_items__for_each_entry(&section->items, item)
 
 #endif /* __PERF_CONFIG_H */
-- 
2.5.0

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#1431437 — [tip:perf/core] perf config: Introduce new init() and exit()

Commit-ID:  8a0a9c7e9146781defc96f6743e7ee14ccc9ab23
Gitweb:     http://git.kernel.org/tip/8a0a9c7e9146781defc96f6743e7ee14ccc9ab23
Author:     Taeung Song <treeze.taeung@gmail.com>
AuthorDate: Thu, 23 Jun 2016 23:14:31 +0900
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 23 Jun 2016 17:20:04 -0300

perf config: Introduce new init() and exit()

Many sub-commands use perf_config() but everytime perf_config() is
called, perf_config() always read config files.  (i.e. user config
'~/.perfconfig' and system config '$(sysconfdir)/perfconfig')

But it is better to use the config set that already contains all config
key-value pairs to avoid this repetitive work reading the config files
in perf_config(). (the config set mean a static variable 'config_set')

In other words, if new perf_config__init() is called, only first time
'config_set' is initialized collecting all configs from the config
files.  And then we could use new perf_config() like old perf_config().
When a sub-command finished, free the config set by perf_config__exit()
at run_builtin().

If we do, 'config_set' can be reused wherever perf_config() is called
and a feature of old perf_config() is the same as new perf_config() work
without the repetitive work that read the config files.

In summary, in order to use features about configuration,
we can call the functions at perf.c and other source files as below.

    # initialize a config set
    perf_config__init()

    # configure actual variables from a config set
    perf_config()

    # eliminate allocated config set
    perf_config__exit()

    # destroy existing config set and initialize a new config set.
    perf_config__refresh()

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1466691272-24117-3-git-send-email-treeze.taeung@gmail.com
[ 'init' counterpart is 'exit', not 'finish' ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-config.c |  4 ++
 tools/perf/perf.c           |  2 +
 tools/perf/util/config.c    | 92 +++++++++++++++++++++++----------------------
 tools/perf/util/config.h    | 29 ++++++++++++++
 4 files changed, 82 insertions(+), 45 deletions(-)

diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
index fe1b77f..cfd1036 100644
--- a/tools/perf/builtin-config.c
+++ b/tools/perf/builtin-config.c
@@ -80,6 +80,10 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
 	else if (use_user_config)
 		config_exclusive_filename = user_config;
 
+	/*
+	 * At only 'config' sub-command, individually use the config set
+	 * because of reinitializing with options config file location.
+	 */
 	set = perf_config_set__new();
 	if (!set) {
 		ret = -1;
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 66772da..8f21922 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -355,6 +355,7 @@ static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
 
 	perf_env__set_cmdline(&perf_env, argc, argv);
 	status = p->fn(argc, argv, prefix);
+	perf_config__exit();
 	exit_browser(status);
 	perf_env__exit(&perf_env);
 	bpf__clear();
@@ -522,6 +523,7 @@ int main(int argc, const char **argv)
 
 	srandom(time(NULL));
 
+	perf_config__init();
 	perf_config(perf_default_config, NULL);
 	set_buildid_dir(NULL);
 
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index d15c592..18dae74 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -26,6 +26,7 @@ static FILE *config_file;
 static const char *config_file_name;
 static int config_linenr;
 static int config_file_eof;
+static struct perf_config_set *config_set;
 
 const char *config_exclusive_filename;
 
@@ -478,51 +479,6 @@ static int perf_config_global(void)
 	return !perf_env_bool("PERF_CONFIG_NOGLOBAL", 0);
 }
 
-int perf_config(config_fn_t fn, void *data)
-{
-	int ret = -1;
-	const char *home = NULL;
-
-	/* Setting $PERF_CONFIG makes perf read _only_ the given config file. */
-	if (config_exclusive_filename)
-		return perf_config_from_file(fn, config_exclusive_filename, data);
-	if (perf_config_system() && !access(perf_etc_perfconfig(), R_OK)) {
-		if (perf_config_from_file(fn, perf_etc_perfconfig(), data) < 0)
-			goto out;
-	}
-
-	home = getenv("HOME");
-	if (perf_config_global() && home) {
-		char *user_config = strdup(mkpath("%s/.perfconfig", home));
-		struct stat st;
-
-		if (user_config == NULL) {
-			warning("Not enough memory to process %s/.perfconfig, "
-				"ignoring it.", home);
-			goto out;
-		}
-
-		if (stat(user_config, &st) < 0)
-			goto out_free;
-
-		if (st.st_uid && (st.st_uid != geteuid())) {
-			warning("File %s not owned by current user or root, "
-				"ignoring it.", user_config);
-			goto out_free;
-		}
-
-		if (!st.st_size)
-			goto out_free;
-
-		ret = perf_config_from_file(fn, user_config, data);
-
-out_free:
-		free(user_config);
-	}
-out:
-	return ret;
-}
-
 static struct perf_config_section *find_section(struct list_head *sections,
 						const char *section_name)
 {
@@ -706,6 +662,52 @@ struct perf_config_set *perf_config_set__new(void)
 	return set;
 }
 
+int perf_config(config_fn_t fn, void *data)
+{
+	int ret = 0;
+	char key[BUFSIZ];
+	struct perf_config_section *section;
+	struct perf_config_item *item;
+
+	if (config_set == NULL)
+		return -1;
+
+	perf_config_set__for_each_entry(config_set, section, item) {
+		char *value = item->value;
+
+		if (value) {
+			scnprintf(key, sizeof(key), "%s.%s",
+				  section->name, item->name);
+			ret = fn(key, value, data);
+			if (ret < 0) {
+				pr_err("Error: wrong config key-value pair %s=%s\n",
+				       key, value);
+				break;
+			}
+		}
+	}
+
+	return ret;
+}
+
+void perf_config__init(void)
+{
+	if (config_set == NULL)
+		config_set = perf_config_set__new();
+}
+
+void perf_config__exit(void)
+{
+	perf_config_set__delete(config_set);
+	config_set = NULL;
+}
+
+void perf_config__refresh(void)
+{
+	perf_config__exit();
+	perf_config__init();
+}
+
 static void perf_config_item__delete(struct perf_config_item *item)
 {
 	zfree(&item->name);
diff --git a/tools/perf/util/config.h b/tools/perf/util/config.h
index 155a441..6f813d4 100644
--- a/tools/perf/util/config.h
+++ b/tools/perf/util/config.h
@@ -33,5 +33,34 @@ const char *perf_etc_perfconfig(void);
 
 struct perf_config_set *perf_config_set__new(void);
 void perf_config_set__delete(struct perf_config_set *set);
+void perf_config__init(void);
+void perf_config__exit(void);
+void perf_config__refresh(void);
+
+/**
+ * perf_config_sections__for_each - iterate thru all the sections
+ * @list: list_head instance to iterate
+ * @section: struct perf_config_section iterator
+ */
+#define perf_config_sections__for_each_entry(list, section)	\
+        list_for_each_entry(section, list, node)
+
+/**
+ * perf_config_items__for_each - iterate thru all the items
+ * @list: list_head instance to iterate
+ * @item: struct perf_config_item iterator
+ */
+#define perf_config_items__for_each_entry(list, item)	\
+        list_for_each_entry(item, list, node)
+
+/**
+ * perf_config_set__for_each - iterate thru all the config section-item pairs
+ * @set: evlist instance to iterate
+ * @section: struct perf_config_section iterator
+ * @item: struct perf_config_item iterator
+ */
+#define perf_config_set__for_each_entry(set, section, item)			\
+	perf_config_sections__for_each_entry(&set->sections, section)		\
+	perf_config_items__for_each_entry(&section->items, item)
 
 #endif /* __PERF_CONFIG_H */

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#1429884 — [PATCH v12 1/3] perf config: Bring declarations about config from util/cache.h to util/config.h

Lately util/config.h has been added
but util/cache.h has declarations of functions
and a global variable for config features.

To manage codes about configuration at one spot,
move them to util/config.h and let source files
that need config features include config.h
And if the source files that included previous cache.h
need only config.h, remove including cache.h.

Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
---
 tools/perf/builtin-help.c          |  2 +-
 tools/perf/builtin-kmem.c          |  2 +-
 tools/perf/builtin-record.c        |  1 +
 tools/perf/builtin-report.c        |  2 +-
 tools/perf/builtin-top.c           |  2 +-
 tools/perf/perf.c                  |  2 +-
 tools/perf/ui/browser.c            |  2 +-
 tools/perf/ui/browsers/annotate.c  |  1 +
 tools/perf/util/alias.c            |  1 +
 tools/perf/util/cache.h            | 11 -----------
 tools/perf/util/color.c            |  1 +
 tools/perf/util/config.h           | 11 +++++++++++
 tools/perf/util/help-unknown-cmd.c |  1 +
 tools/perf/util/intel-pt.c         |  1 +
 tools/perf/util/llvm-utils.c       |  1 +
 15 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index f9830c9..268ab73 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -4,7 +4,7 @@
  * Builtin help command
  */
 #include "perf.h"
-#include "util/cache.h"
+#include "util/config.h"
 #include "builtin.h"
 #include <subcmd/exec-cmd.h>
 #include "common-cmds.h"
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 58adfee..4defe44 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -4,7 +4,7 @@
 #include "util/evlist.h"
 #include "util/evsel.h"
 #include "util/util.h"
-#include "util/cache.h"
+#include "util/config.h"
 #include "util/symbol.h"
 #include "util/thread.h"
 #include "util/header.h"
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index b1304eb..c97b2b69 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -13,6 +13,7 @@
 #include "util/util.h"
 #include <subcmd/parse-options.h>
 #include "util/parse-events.h"
+#include "util/config.h"
 
 #include "util/callchain.h"
 #include "util/cgroup.h"
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 9f36b23..bcb49ff 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -8,7 +8,7 @@
 #include "builtin.h"
 
 #include "util/util.h"
-#include "util/cache.h"
+#include "util/config.h"
 
 #include "util/annotate.h"
 #include "util/color.h"
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 81dba80..ec4cba6 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -22,7 +22,7 @@
 #include "perf.h"
 
 #include "util/annotate.h"
-#include "util/cache.h"
+#include "util/config.h"
 #include "util/color.h"
 #include "util/evlist.h"
 #include "util/evsel.h"
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 634bf7c..66772da 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -10,7 +10,7 @@
 
 #include "util/env.h"
 #include <subcmd/exec-cmd.h>
-#include "util/cache.h"
+#include "util/config.h"
 #include "util/quote.h"
 #include <subcmd/run-command.h>
 #include "util/parse-events.h"
diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index af68a9d..3eb3edb 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -1,5 +1,5 @@
 #include "../util.h"
-#include "../cache.h"
+#include "../config.h"
 #include "../../perf.h"
 #include "libslang.h"
 #include "ui.h"
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 4fc208e..0e106bb 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -8,6 +8,7 @@
 #include "../../util/sort.h"
 #include "../../util/symbol.h"
 #include "../../util/evsel.h"
+#include "../../util/config.h"
 #include <pthread.h>
 
 struct disasm_line_samples {
diff --git a/tools/perf/util/alias.c b/tools/perf/util/alias.c
index c0b43ee..6c80f83 100644
--- a/tools/perf/util/alias.c
+++ b/tools/perf/util/alias.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "config.h"
 
 static const char *alias_key;
 static char *alias_val;
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index 369f382..9f90e36 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -18,17 +18,6 @@
 #define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"
 #define PERF_PAGER_ENVIRONMENT "PERF_PAGER"
 
-extern const char *config_exclusive_filename;
-
-typedef int (*config_fn_t)(const char *, const char *, void *);
-int perf_default_config(const char *, const char *, void *);
-int perf_config(config_fn_t fn, void *);
-int perf_config_int(const char *, const char *);
-u64 perf_config_u64(const char *, const char *);
-int perf_config_bool(const char *, const char *);
-int config_error_nonbool(const char *);
-const char *perf_etc_perfconfig(void);
-
 char *alias_lookup(const char *alias);
 int split_cmdline(char *cmdline, const char ***argv);
 
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 43e84aa..1210ba5 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -1,5 +1,6 @@
 #include <linux/kernel.h>
 #include "cache.h"
+#include "config.h"
 #include "color.h"
 #include <math.h>
 
diff --git a/tools/perf/util/config.h b/tools/perf/util/config.h
index 22ec626..155a441 100644
--- a/tools/perf/util/config.h
+++ b/tools/perf/util/config.h
@@ -20,6 +20,17 @@ struct perf_config_set {
 	struct list_head sections;
 };
 
+extern const char *config_exclusive_filename;
+
+typedef int (*config_fn_t)(const char *, const char *, void *);
+int perf_default_config(const char *, const char *, void *);
+int perf_config(config_fn_t fn, void *);
+int perf_config_int(const char *, const char *);
+u64 perf_config_u64(const char *, const char *);
+int perf_config_bool(const char *, const char *);
+int config_error_nonbool(const char *);
+const char *perf_etc_perfconfig(void);
+
 struct perf_config_set *perf_config_set__new(void);
 void perf_config_set__delete(struct perf_config_set *set);
 
diff --git a/tools/perf/util/help-unknown-cmd.c b/tools/perf/util/help-unknown-cmd.c
index d62ccae..776e285 100644
--- a/tools/perf/util/help-unknown-cmd.c
+++ b/tools/perf/util/help-unknown-cmd.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "config.h"
 #include <subcmd/help.h>
 #include "../builtin.h"
 #include "levenshtein.h"
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 1371969..a2fe3a2 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -39,6 +39,7 @@
 #include "auxtrace.h"
 #include "tsc.h"
 #include "intel-pt.h"
+#include "config.h"
 
 #include "intel-pt-decoder/intel-pt-log.h"
 #include "intel-pt-decoder/intel-pt-decoder.h"
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index 878a566..40b6f72 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -8,6 +8,7 @@
 #include <stdlib.h>
 #include "debug.h"
 #include "llvm-utils.h"
+#include "config.h"
 
 #define CLANG_BPF_CMD_DEFAULT_TEMPLATE				\
 		"$CLANG_EXEC -D__KERNEL__ -D__NR_CPUS__=$NR_CPUS "\
-- 
2.5.0

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