[GIT PULL 00/10] perf/core improvements and fixes

[GIT PULL 00/10] perf/core improvements and fixes

[Jiri Olsa]

hi Ingo,
please consider pulling

jirka

The following changes since commit 538592ff0b008237ae88f5ce5fb1247127dc3ce5:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-03-19 08:05:47 +0100)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git tags/perf-core-for-mingo

for you to fetch changes up to dad45c767443b738232a99c747efaaddbe56855c:

  MAINTAINERS: Change e-mail to kernel.org one (2014-04-08 19:39:43 +0200)

----------------------------------------------------------------
perf/core improvements and fixes:

Documentation:

. Fix documentation of invalid 'perf top -s' option (Namhyung Kim)

. Change e-mail to kernel.org one in MAINTAINERS file (Arnaldo Carvalho de Melo)

Developer stuff:

. Disable unwind libraries when libelf isn't found (Arnaldo Carvalho de Melo)

. Add thread maps lookup automated tests (Jiri Olsa)

. Print event name when showing libtraceevent warnings if possible (Namhyung Kim)

. Add --list-cmds to 'kmem', 'mem', 'lock' and 'sched', for use by completion scripts (Ramkumar Ramachandra)

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf callchains: Disable unwind libraries when libelf isn't found
      MAINTAINERS: Change e-mail to kernel.org one

Jiri Olsa (1):
      perf tests: Add thread maps lookup automated tests

Namhyung Kim (3):
      perf top: Fix documentation of invalid -s option
      tools lib traceevent: Print event name when show warning if possible
      tools lib traceevent: Do not call warning() directly

Ramkumar Ramachandra (4):
      perf kmem: Introduce --list-cmds for use by scripts
      perf mem: Introduce --list-cmds for use by scripts
      perf lock: Introduce --list-cmds for use by scripts
      perf sched: Introduce --list-cmds for use by scripts

 MAINTAINERS                           |   2 +-
 tools/lib/traceevent/event-parse.c    | 109 +++++++++-------
 tools/perf/Documentation/perf-top.txt |   1 -
 tools/perf/Makefile.perf              |   1 +
 tools/perf/builtin-kmem.c             |   8 +-
 tools/perf/builtin-lock.c             |  10 +-
 tools/perf/builtin-mem.c              |  15 ++-
 tools/perf/builtin-sched.c            |  10 +-
 tools/perf/config/Makefile            |   2 +
 tools/perf/perf-completion.sh         |   4 +-
 tools/perf/perf.h                     |   6 +
 tools/perf/tests/builtin-test.c       |   4 +
 tools/perf/tests/mmap-thread-lookup.c | 233 ++++++++++++++++++++++++++++++++++
 tools/perf/tests/tests.h              |   1 +
 14 files changed, 341 insertions(+), 65 deletions(-)
 create mode 100644 tools/perf/tests/mmap-thread-lookup.c

[PATCH 01/10] perf tests: Add thread maps lookup automated tests

[Jiri Olsa]

Adding automated test for memory maps lookup within multiple machines
threads.

The test creates 4 threads and separated memory maps.

It checks that we could use thread__find_addr_map function with thread
object based on TID to find memory maps.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-1l6knzgxco4zd3cp45jk2hsg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf              |   1 +
 tools/perf/perf.h                     |   6 +
 tools/perf/tests/builtin-test.c       |   4 +
 tools/perf/tests/mmap-thread-lookup.c | 233 ++++++++++++++++++++++++++++++++++
 tools/perf/tests/tests.h              |   1 +
 5 files changed, 245 insertions(+)
 create mode 100644 tools/perf/tests/mmap-thread-lookup.c

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 50d875d..667e85a 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -414,6 +414,7 @@ ifeq ($(ARCH),x86)
 LIB_OBJS += $(OUTPUT)tests/dwarf-unwind.o
 endif
 endif
+LIB_OBJS += $(OUTPUT)tests/mmap-thread-lookup.o
 
 BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
 BUILTIN_OBJS += $(OUTPUT)builtin-bench.o
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index e18a8b5..1138c41 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -15,6 +15,9 @@
 #ifndef __NR_futex
 # define __NR_futex 240
 #endif
+#ifndef __NR_gettid
+# define __NR_gettid 224
+#endif
 #endif
 
 #if defined(__x86_64__)
@@ -29,6 +32,9 @@
 #ifndef __NR_futex
 # define __NR_futex 202
 #endif
+#ifndef __NR_gettid
+# define __NR_gettid 186
+#endif
 #endif
 
 #ifdef __powerpc__
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index b11bf8a..d947d1a 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -124,6 +124,10 @@ static struct test {
 #endif
 #endif
 	{
+		.desc = "Test mmap thread lookup",
+		.func = test__mmap_thread_lookup,
+	},
+	{
 		.func = NULL,
 	},
 };
diff --git a/tools/perf/tests/mmap-thread-lookup.c b/tools/perf/tests/mmap-thread-lookup.c
new file mode 100644
index 0000000..cb73e1f
--- /dev/null
+++ b/tools/perf/tests/mmap-thread-lookup.c
@@ -0,0 +1,233 @@
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "debug.h"
+#include "tests.h"
+#include "machine.h"
+#include "thread_map.h"
+#include "symbol.h"
+#include "thread.h"
+
+#define THREADS 4
+
+static int go_away;
+
+struct thread_data {
+	pthread_t	pt;
+	pid_t		tid;
+	void		*map;
+	int		ready[2];
+};
+
+static struct thread_data threads[THREADS];
+
+static int thread_init(struct thread_data *td)
+{
+	void *map;
+
+	map = mmap(NULL, page_size,
+		   PROT_READ|PROT_WRITE|PROT_EXEC,
+		   MAP_SHARED|MAP_ANONYMOUS, -1, 0);
+
+	if (map == MAP_FAILED) {
+		perror("mmap failed");
+		return -1;
+	}
+
+	td->map = map;
+	td->tid = syscall(SYS_gettid);
+
+	pr_debug("tid = %d, map = %p\n", td->tid, map);
+	return 0;
+}
+
+static void *thread_fn(void *arg)
+{
+	struct thread_data *td = arg;
+	ssize_t ret;
+	int go;
+
+	if (thread_init(td))
+		return NULL;
+
+	/* Signal thread_create thread is initialized. */
+	ret = write(td->ready[1], &go, sizeof(int));
+	if (ret != sizeof(int)) {
+		pr_err("failed to notify\n");
+		return NULL;
+	}
+
+	while (!go_away) {
+		/* Waiting for main thread to kill us. */
+		usleep(100);
+	}
+
+	munmap(td->map, page_size);
+	return NULL;
+}
+
+static int thread_create(int i)
+{
+	struct thread_data *td = &threads[i];
+	int err, go;
+
+	if (pipe(td->ready))
+		return -1;
+
+	err = pthread_create(&td->pt, NULL, thread_fn, td);
+	if (!err) {
+		/* Wait for thread initialization. */
+		ssize_t ret = read(td->ready[0], &go, sizeof(int));
+		err = ret != sizeof(int);
+	}
+
+	close(td->ready[0]);
+	close(td->ready[1]);
+	return err;
+}
+
+static int threads_create(void)
+{
+	struct thread_data *td0 = &threads[0];
+	int i, err = 0;
+
+	go_away = 0;
+
+	/* 0 is main thread */
+	if (thread_init(td0))
+		return -1;
+
+	for (i = 1; !err && i < THREADS; i++)
+		err = thread_create(i);
+
+	return err;
+}
+
+static int threads_destroy(void)
+{
+	struct thread_data *td0 = &threads[0];
+	int i, err = 0;
+
+	/* cleanup the main thread */
+	munmap(td0->map, page_size);
+
+	go_away = 1;
+
+	for (i = 1; !err && i < THREADS; i++)
+		err = pthread_join(threads[i].pt, NULL);
+
+	return err;
+}
+
+typedef int (*synth_cb)(struct machine *machine);
+
+static int synth_all(struct machine *machine)
+{
+	return perf_event__synthesize_threads(NULL,
+					      perf_event__process,
+					      machine, 0);
+}
+
+static int synth_process(struct machine *machine)
+{
+	struct thread_map *map;
+	int err;
+
+	map = thread_map__new_by_pid(getpid());
+
+	err = perf_event__synthesize_thread_map(NULL, map,
+						perf_event__process,
+						machine, 0);
+
+	thread_map__delete(map);
+	return err;
+}
+
+static int mmap_events(synth_cb synth)
+{
+	struct machines machines;
+	struct machine *machine;
+	int err, i;
+
+	/*
+	 * The threads_create will not return before all threads
+	 * are spawned and all created memory map.
+	 *
+	 * They will loop until threads_destroy is called, so we
+	 * can safely run synthesizing function.
+	 */
+	TEST_ASSERT_VAL("failed to create threads", !threads_create());
+
+	machines__init(&machines);
+	machine = &machines.host;
+
+	dump_trace = verbose > 1 ? 1 : 0;
+
+	err = synth(machine);
+
+	dump_trace = 0;
+
+	TEST_ASSERT_VAL("failed to destroy threads", !threads_destroy());
+	TEST_ASSERT_VAL("failed to synthesize maps", !err);
+
+	/*
+	 * All data is synthesized, try to find map for each
+	 * thread object.
+	 */
+	for (i = 0; i < THREADS; i++) {
+		struct thread_data *td = &threads[i];
+		struct addr_location al;
+		struct thread *thread;
+
+		thread = machine__findnew_thread(machine, getpid(), td->tid);
+
+		pr_debug("looking for map %p\n", td->map);
+
+		thread__find_addr_map(thread, machine,
+				      PERF_RECORD_MISC_USER, MAP__FUNCTION,
+				      (u64) (td->map + 1), &al);
+
+		if (!al.map) {
+			pr_debug("failed, couldn't find map\n");
+			err = -1;
+			break;
+		}
+
+		pr_debug("map %p, addr %lx\n", al.map, al.map->start);
+	}
+
+	machine__delete_threads(machine);
+	machines__exit(&machines);
+	return err;
+}
+
+/*
+ * This test creates 'THREADS' number of threads (including
+ * main thread) and each thread creates memory map.
+ *
+ * When threads are created, we synthesize them with both
+ * (separate tests):
+ *   perf_event__synthesize_thread_map (process based)
+ *   perf_event__synthesize_threads    (global)
+ *
+ * We test we can find all memory maps via:
+ *   thread__find_addr_map
+ *
+ * by using all thread objects.
+ */
+int test__mmap_thread_lookup(void)
+{
+	/* perf_event__synthesize_threads synthesize */
+	TEST_ASSERT_VAL("failed with sythesizing all",
+			!mmap_events(synth_all));
+
+	/* perf_event__synthesize_thread_map synthesize */
+	TEST_ASSERT_VAL("failed with sythesizing process",
+			!mmap_events(synth_process));
+
+	return 0;
+}
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index a24795c..6db764c 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -41,6 +41,7 @@ int test__sample_parsing(void);
 int test__keep_tracking(void);
 int test__parse_no_sample_id_all(void);
 int test__dwarf_unwind(void);
+int test__mmap_thread_lookup(void);
 
 #if defined(__x86_64__) || defined(__i386__)
 #ifdef HAVE_DWARF_UNWIND_SUPPORT
-- 
1.8.3.1

[PATCH 02/10] perf top: Fix documentation of invalid -s option

[Jiri Olsa]

From: Namhyung Kim <namhyung@kernel.org>

On perf top, the -s option is used for --sort, but the man page
contains invalid documentation of -s option for --sym-annotate.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1395193578-27098-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/perf/Documentation/perf-top.txt | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index cdd8d49..976b00c 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -87,7 +87,6 @@ Default is to monitor all CPUS.
 --realtime=<priority>::
 	Collect data with this RT SCHED_FIFO priority.
 
--s <symbol>::
 --sym-annotate=<symbol>::
         Annotate this symbol.
 
-- 
1.8.3.1

[PATCH 03/10] tools lib traceevent: Print event name when show warning if possible

[Jiri Olsa]

From: Namhyung Kim <namhyung@kernel.org>

It's sometimes useful to know where the parse failure was occurred.  Add
do_warning_event() macro to see the failing event.

It now shows the messages like below:

  $ perf test 5
   5: parse events tests                                     :  Warning: [kvmmmu:kvm_mmu_get_page] bad op token {
    Warning: [kvmmmu:kvm_mmu_sync_page] bad op token {
    Warning: [kvmmmu:kvm_mmu_unsync_page] bad op token {
    Warning: [kvmmmu:kvm_mmu_prepare_zap_page] bad op token {
    Warning: [kvmmmu:fast_page_fault] function is_writable_pte not defined
    Warning: [xen:xen_mmu_ptep_modify_prot_commit] function sizeof not defined
    Warning: [xen:xen_mmu_ptep_modify_prot_start] function sizeof not defined
    Warning: [xen:xen_mmu_set_pgd] function sizeof not defined
    Warning: [xen:xen_mmu_set_pud] function sizeof not defined
    Warning: [xen:xen_mmu_set_pmd] function sizeof not defined
    ...

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1395192174-26273-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 103 ++++++++++++++++++++++---------------
 1 file changed, 62 insertions(+), 41 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 1587ea39..33803c0b9 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -50,6 +50,18 @@ static int show_warning = 1;
 			warning(fmt, ##__VA_ARGS__);	\
 	} while (0)
 
+#define do_warning_event(event, fmt, ...)			\
+	do {							\
+		if (!show_warning)				\
+			continue;				\
+								\
+		if (event)					\
+			warning("[%s:%s] " fmt, event->system,	\
+				event->name, ##__VA_ARGS__);	\
+		else						\
+			warning(fmt, ##__VA_ARGS__);		\
+	} while (0)
+
 static void init_input_buf(const char *buf, unsigned long long size)
 {
 	input_buf = buf;
@@ -1355,7 +1367,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
 		}
 
 		if (!field->type) {
-			do_warning("%s: no type found", __func__);
+			do_warning_event(event, "%s: no type found", __func__);
 			goto fail;
 		}
 		field->name = last_token;
@@ -1402,7 +1414,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
 				free_token(token);
 				type = read_token(&token);
 				if (type == EVENT_NONE) {
-					do_warning("failed to find token");
+					do_warning_event(event, "failed to find token");
 					goto fail;
 				}
 			}
@@ -1636,7 +1648,7 @@ process_cond(struct event_format *event, struct print_arg *top, char **tok)
 	right = alloc_arg();
 
 	if (!arg || !left || !right) {
-		do_warning("%s: not enough memory!", __func__);
+		do_warning_event(event, "%s: not enough memory!", __func__);
 		/* arg will be freed at out_free */
 		free_arg(left);
 		free_arg(right);
@@ -1686,7 +1698,7 @@ process_array(struct event_format *event, struct print_arg *top, char **tok)
 
 	arg = alloc_arg();
 	if (!arg) {
-		do_warning("%s: not enough memory!", __func__);
+		do_warning_event(event, "%s: not enough memory!", __func__);
 		/* '*tok' is set to top->op.op.  No need to free. */
 		*tok = NULL;
 		return EVENT_ERROR;
@@ -1792,7 +1804,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
 	if (arg->type == PRINT_OP && !arg->op.left) {
 		/* handle single op */
 		if (token[1]) {
-			do_warning("bad op token %s", token);
+			do_warning_event(event, "bad op token %s", token);
 			goto out_free;
 		}
 		switch (token[0]) {
@@ -1802,7 +1814,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
 		case '-':
 			break;
 		default:
-			do_warning("bad op token %s", token);
+			do_warning_event(event, "bad op token %s", token);
 			goto out_free;
 
 		}
@@ -1888,7 +1900,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
 			char *new_atom;
 
 			if (left->type != PRINT_ATOM) {
-				do_warning("bad pointer type");
+				do_warning_event(event, "bad pointer type");
 				goto out_free;
 			}
 			new_atom = realloc(left->atom.atom,
@@ -1930,7 +1942,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
 		type = process_array(event, arg, tok);
 
 	} else {
-		do_warning("unknown op '%s'", token);
+		do_warning_event(event, "unknown op '%s'", token);
 		event->flags |= EVENT_FL_FAILED;
 		/* the arg is now the left side */
 		goto out_free;
@@ -1951,7 +1963,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
 	return type;
 
 out_warn_free:
-	do_warning("%s: not enough memory!", __func__);
+	do_warning_event(event, "%s: not enough memory!", __func__);
 out_free:
 	free_token(token);
 	*tok = NULL;
@@ -2385,7 +2397,7 @@ process_flags(struct event_format *event, struct print_arg *arg, char **tok)
 
 	field = alloc_arg();
 	if (!field) {
-		do_warning("%s: not enough memory!", __func__);
+		do_warning_event(event, "%s: not enough memory!", __func__);
 		goto out_free;
 	}
 
@@ -2438,7 +2450,7 @@ process_symbols(struct event_format *event, struct print_arg *arg, char **tok)
 
 	field = alloc_arg();
 	if (!field) {
-		do_warning("%s: not enough memory!", __func__);
+		do_warning_event(event, "%s: not enough memory!", __func__);
 		goto out_free;
 	}
 
@@ -2477,7 +2489,7 @@ process_hex(struct event_format *event, struct print_arg *arg, char **tok)
 
 	field = alloc_arg();
 	if (!field) {
-		do_warning("%s: not enough memory!", __func__);
+		do_warning_event(event, "%s: not enough memory!", __func__);
 		goto out_free;
 	}
 
@@ -2492,7 +2504,7 @@ process_hex(struct event_format *event, struct print_arg *arg, char **tok)
 
 	field = alloc_arg();
 	if (!field) {
-		do_warning("%s: not enough memory!", __func__);
+		do_warning_event(event, "%s: not enough memory!", __func__);
 		*tok = NULL;
 		return EVENT_ERROR;
 	}
@@ -2555,7 +2567,7 @@ process_dynamic_array(struct event_format *event, struct print_arg *arg, char **
 	free_token(token);
 	arg = alloc_arg();
 	if (!arg) {
-		do_warning("%s: not enough memory!", __func__);
+		do_warning_event(event, "%s: not enough memory!", __func__);
 		*tok = NULL;
 		return EVENT_ERROR;
 	}
@@ -2614,13 +2626,14 @@ process_paren(struct event_format *event, struct print_arg *arg, char **tok)
 
 		/* prevous must be an atom */
 		if (arg->type != PRINT_ATOM) {
-			do_warning("previous needed to be PRINT_ATOM");
+			do_warning_event(event, "previous needed to be PRINT_ATOM");
 			goto out_free;
 		}
 
 		item_arg = alloc_arg();
 		if (!item_arg) {
-			do_warning("%s: not enough memory!", __func__);
+			do_warning_event(event, "%s: not enough memory!",
+					 __func__);
 			goto out_free;
 		}
 
@@ -2721,7 +2734,8 @@ process_func_handler(struct event_format *event, struct pevent_function_handler
 	for (i = 0; i < func->nr_args; i++) {
 		farg = alloc_arg();
 		if (!farg) {
-			do_warning("%s: not enough memory!", __func__);
+			do_warning_event(event, "%s: not enough memory!",
+					 __func__);
 			return EVENT_ERROR;
 		}
 
@@ -2792,7 +2806,7 @@ process_function(struct event_format *event, struct print_arg *arg,
 		return process_func_handler(event, func, arg, tok);
 	}
 
-	do_warning("function %s not defined", token);
+	do_warning_event(event, "function %s not defined", token);
 	free_token(token);
 	return EVENT_ERROR;
 }
@@ -2878,7 +2892,7 @@ process_arg_token(struct event_format *event, struct print_arg *arg,
 
 	case EVENT_ERROR ... EVENT_NEWLINE:
 	default:
-		do_warning("unexpected type %d", type);
+		do_warning_event(event, "unexpected type %d", type);
 		return EVENT_ERROR;
 	}
 	*tok = token;
@@ -2901,7 +2915,8 @@ static int event_read_print_args(struct event_format *event, struct print_arg **
 
 		arg = alloc_arg();
 		if (!arg) {
-			do_warning("%s: not enough memory!", __func__);
+			do_warning_event(event, "%s: not enough memory!",
+					 __func__);
 			return -1;
 		}
 
@@ -3481,11 +3496,12 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
 	return val;
 
 out_warning_op:
-	do_warning("%s: unknown op '%s'", __func__, arg->op.op);
+	do_warning_event(event, "%s: unknown op '%s'", __func__, arg->op.op);
 	return 0;
 
 out_warning_field:
-	do_warning("%s: field %s not found", __func__, arg->field.name);
+	do_warning_event(event, "%s: field %s not found",
+			 __func__, arg->field.name);
 	return 0;
 }
 
@@ -3591,7 +3607,8 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 		}
 		str = malloc(len + 1);
 		if (!str) {
-			do_warning("%s: not enough memory!", __func__);
+			do_warning_event(event, "%s: not enough memory!",
+					 __func__);
 			return;
 		}
 		memcpy(str, data + field->offset, len);
@@ -3697,7 +3714,8 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 	return;
 
 out_warning_field:
-	do_warning("%s: field %s not found", __func__, arg->field.name);
+	do_warning_event(event, "%s: field %s not found",
+			 __func__, arg->field.name);
 }
 
 static unsigned long long
@@ -3742,14 +3760,16 @@ process_defined_func(struct trace_seq *s, void *data, int size,
 			trace_seq_terminate(&str);
 			string = malloc(sizeof(*string));
 			if (!string) {
-				do_warning("%s(%d): malloc str", __func__, __LINE__);
+				do_warning_event(event, "%s(%d): malloc str",
+						 __func__, __LINE__);
 				goto out_free;
 			}
 			string->next = strings;
 			string->str = strdup(str.buffer);
 			if (!string->str) {
 				free(string);
-				do_warning("%s(%d): malloc str", __func__, __LINE__);
+				do_warning_event(event, "%s(%d): malloc str",
+						 __func__, __LINE__);
 				goto out_free;
 			}
 			args[i] = (uintptr_t)string->str;
@@ -3761,7 +3781,7 @@ process_defined_func(struct trace_seq *s, void *data, int size,
 			 * Something went totally wrong, this is not
 			 * an input error, something in this code broke.
 			 */
-			do_warning("Unexpected end of arguments\n");
+			do_warning_event(event, "Unexpected end of arguments\n");
 			goto out_free;
 		}
 		farg = farg->next;
@@ -3811,12 +3831,12 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
 	if (!field) {
 		field = pevent_find_field(event, "buf");
 		if (!field) {
-			do_warning("can't find buffer field for binary printk");
+			do_warning_event(event, "can't find buffer field for binary printk");
 			return NULL;
 		}
 		ip_field = pevent_find_field(event, "ip");
 		if (!ip_field) {
-			do_warning("can't find ip field for binary printk");
+			do_warning_event(event, "can't find ip field for binary printk");
 			return NULL;
 		}
 		pevent->bprint_buf_field = field;
@@ -3830,7 +3850,8 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
 	 */
 	args = alloc_arg();
 	if (!args) {
-		do_warning("%s(%d): not enough memory!", __func__, __LINE__);
+		do_warning_event(event, "%s(%d): not enough memory!",
+				 __func__, __LINE__);
 		return NULL;
 	}
 	arg = args;
@@ -3896,7 +3917,7 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
 				bptr += vsize;
 				arg = alloc_arg();
 				if (!arg) {
-					do_warning("%s(%d): not enough memory!",
+					do_warning_event(event, "%s(%d): not enough memory!",
 						   __func__, __LINE__);
 					goto out_free;
 				}
@@ -3919,7 +3940,7 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
 			case 's':
 				arg = alloc_arg();
 				if (!arg) {
-					do_warning("%s(%d): not enough memory!",
+					do_warning_event(event, "%s(%d): not enough memory!",
 						   __func__, __LINE__);
 					goto out_free;
 				}
@@ -3959,7 +3980,7 @@ get_bprint_format(void *data, int size __maybe_unused,
 	if (!field) {
 		field = pevent_find_field(event, "fmt");
 		if (!field) {
-			do_warning("can't find format field for binary printk");
+			do_warning_event(event, "can't find format field for binary printk");
 			return NULL;
 		}
 		pevent->bprint_fmt_field = field;
@@ -4003,8 +4024,8 @@ static void print_mac_arg(struct trace_seq *s, int mac, void *data, int size,
 		arg->field.field =
 			pevent_find_any_field(event, arg->field.name);
 		if (!arg->field.field) {
-			do_warning("%s: field %s not found",
-				   __func__, arg->field.name);
+			do_warning_event(event, "%s: field %s not found",
+					 __func__, arg->field.name);
 			return;
 		}
 	}
@@ -4176,7 +4197,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 			case '*':
 				/* The argument is the length. */
 				if (!arg) {
-					do_warning("no argument match");
+					do_warning_event(event, "no argument match");
 					event->flags |= EVENT_FL_FAILED;
 					goto out_failed;
 				}
@@ -4213,7 +4234,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 			case 'X':
 			case 'u':
 				if (!arg) {
-					do_warning("no argument match");
+					do_warning_event(event, "no argument match");
 					event->flags |= EVENT_FL_FAILED;
 					goto out_failed;
 				}
@@ -4223,7 +4244,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 
 				/* should never happen */
 				if (len > 31) {
-					do_warning("bad format!");
+					do_warning_event(event, "bad format!");
 					event->flags |= EVENT_FL_FAILED;
 					len = 31;
 				}
@@ -4290,13 +4311,13 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 						trace_seq_printf(s, format, (long long)val);
 					break;
 				default:
-					do_warning("bad count (%d)", ls);
+					do_warning_event(event, "bad count (%d)", ls);
 					event->flags |= EVENT_FL_FAILED;
 				}
 				break;
 			case 's':
 				if (!arg) {
-					do_warning("no matching argument");
+					do_warning_event(event, "no matching argument");
 					event->flags |= EVENT_FL_FAILED;
 					goto out_failed;
 				}
@@ -4306,7 +4327,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 
 				/* should never happen */
 				if (len > 31) {
-					do_warning("bad format!");
+					do_warning_event(event, "bad format!");
 					event->flags |= EVENT_FL_FAILED;
 					len = 31;
 				}
-- 
1.8.3.1

[PATCH 04/10] tools lib traceevent: Do not call warning() directly

[Jiri Olsa]

From: Namhyung Kim <namhyung@kernel.org>

The patch 3a3ffa2e82205 ("tools lib traceevent: Report better error
message on bad function args") added the error message but it seems
there's no reason to call warning() directly.

So change it to do_warning_event() to provide event information too.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1395192174-26273-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 33803c0b9..baec7d8 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -2742,14 +2742,16 @@ process_func_handler(struct event_format *event, struct pevent_function_handler
 		type = process_arg(event, farg, &token);
 		if (i < (func->nr_args - 1)) {
 			if (type != EVENT_DELIM || strcmp(token, ",") != 0) {
-				warning("Error: function '%s()' expects %d arguments but event %s only uses %d",
+				do_warning_event(event,
+					"Error: function '%s()' expects %d arguments but event %s only uses %d",
 					func->name, func->nr_args,
 					event->name, i + 1);
 				goto err;
 			}
 		} else {
 			if (type != EVENT_DELIM || strcmp(token, ")") != 0) {
-				warning("Error: function '%s()' only expects %d arguments but event %s has more",
+				do_warning_event(event,
+					"Error: function '%s()' only expects %d arguments but event %s has more",
 					func->name, func->nr_args, event->name);
 				goto err;
 			}
-- 
1.8.3.1

[PATCH 05/10] perf callchains: Disable unwind libraries when libelf isn't found

[Jiri Olsa]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

I.e. do the same as when NO_LIBELF is explicitely passed in the 'make'
command line, fixing this:

  Auto-detecting system features:
  ...                         dwarf: [ OFF ]
  ...                         glibc: [ on  ]
  ...                          gtk2: [ OFF ]
  ...                      libaudit: [ OFF ]
  ...                        libbfd: [ OFF ]
  ...                        libelf: [ OFF ]
  ...                     libunwind: [ OFF ]
  ...            libdw-dwarf-unwind: [ OFF ]
  ...     DWARF post unwind library: libdw
<SNIP>
    CC       /tmp/build/perf/util/symbol-minimal.o
    CC       /tmp/build/perf/util/unwind-libdw.o
  arch/x86/util/unwind-libdw.c:1:30: fatal error: elfutils/libdwfl.h: No such file or directory
  compilation terminated.
    CC       /tmp/build/perf/tests/keep-tracking.o
  util/unwind-libdw.c:2:28: fatal error: elfutils/libdw.h: No such file or directory
  compilation terminated.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-e39j1yxanltjx4t0msse63ax@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/perf/config/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index c234182..5a3c452 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -278,6 +278,8 @@ else
       NO_LIBELF := 1
       NO_DWARF := 1
       NO_DEMANGLE := 1
+      NO_LIBUNWIND := 1
+      NO_LIBDW_DWARF_UNWIND := 1
     else
       msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
     endif
-- 
1.8.3.1

[PATCH 06/10] perf kmem: Introduce --list-cmds for use by scripts

[Jiri Olsa]

From: Ramkumar Ramachandra <artagnon@gmail.com>

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1394853474-31019-2-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/perf/builtin-kmem.c     | 8 +++++---
 tools/perf/perf-completion.sh | 4 ++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 929462a..bd91de0 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -756,11 +756,13 @@ int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"),
 	OPT_END()
 	};
-	const char * const kmem_usage[] = {
-		"perf kmem [<options>] {record|stat}",
+	const char *const kmem_subcommands[] = { "record", "stat", NULL };
+	const char *kmem_usage[] = {
+		NULL,
 		NULL
 	};
-	argc = parse_options(argc, argv, kmem_options, kmem_usage, 0);
+	argc = parse_options_subcommand(argc, argv, kmem_options,
+					kmem_subcommands, kmem_usage, 0);
 
 	if (!argc)
 		usage_with_options(kmem_usage, kmem_options);
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index ae3a576..0ef59dd 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -121,8 +121,8 @@ __perf_main ()
 	elif [[ $prev == "-e" && "${words[1]}" == @(record|stat|top) ]]; then
 		evts=$($cmd list --raw-dump)
 		__perfcomp_colon "$evts" "$cur"
-	# List subcommands for 'perf kvm'
-	elif [[ $prev == "kvm" ]]; then
+	# List subcommands for perf commands
+	elif [[ $prev == @(kvm|kmem) ]]; then
 		subcmds=$($cmd $prev --list-cmds)
 		__perfcomp_colon "$subcmds" "$cur"
 	# List long option names
-- 
1.8.3.1

[PATCH 07/10] perf mem: Introduce --list-cmds for use by scripts

[Jiri Olsa]

From: Ramkumar Ramachandra <artagnon@gmail.com>

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1394853474-31019-3-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/perf/builtin-mem.c      | 15 ++++++++-------
 tools/perf/perf-completion.sh |  2 +-
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 2e3ade69..4a1a6c9 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -21,11 +21,6 @@ struct perf_mem {
 	DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 };
 
-static const char * const mem_usage[] = {
-	"perf mem [<options>] {record <command> |report}",
-	NULL
-};
-
 static int __cmd_record(int argc, const char **argv)
 {
 	int rec_argc, i = 0, j;
@@ -220,9 +215,15 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
 		   " between columns '.' is reserved."),
 	OPT_END()
 	};
+	const char *const mem_subcommands[] = { "record", "report", NULL };
+	const char *mem_usage[] = {
+		NULL,
+		NULL
+	};
+
 
-	argc = parse_options(argc, argv, mem_options, mem_usage,
-			     PARSE_OPT_STOP_AT_NON_OPTION);
+	argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
+					mem_usage, PARSE_OPT_STOP_AT_NON_OPTION);
 
 	if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation))
 		usage_with_options(mem_usage, mem_options);
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index 0ef59dd..f44c04b 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -122,7 +122,7 @@ __perf_main ()
 		evts=$($cmd list --raw-dump)
 		__perfcomp_colon "$evts" "$cur"
 	# List subcommands for perf commands
-	elif [[ $prev == @(kvm|kmem) ]]; then
+	elif [[ $prev == @(kvm|kmem|mem) ]]; then
 		subcmds=$($cmd $prev --list-cmds)
 		__perfcomp_colon "$subcmds" "$cur"
 	# List long option names
-- 
1.8.3.1

[PATCH 08/10] perf lock: Introduce --list-cmds for use by scripts

[Jiri Olsa]

From: Ramkumar Ramachandra <artagnon@gmail.com>

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1394853474-31019-4-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/perf/builtin-lock.c     | 10 ++++++----
 tools/perf/perf-completion.sh |  2 +-
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index c852c7a..6148afc 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -961,8 +961,10 @@ int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
 		"perf lock info [<options>]",
 		NULL
 	};
-	const char * const lock_usage[] = {
-		"perf lock [<options>] {record|report|script|info}",
+	const char *const lock_subcommands[] = { "record", "report", "script",
+						 "info", NULL };
+	const char *lock_usage[] = {
+		NULL,
 		NULL
 	};
 	const char * const report_usage[] = {
@@ -976,8 +978,8 @@ int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
 	for (i = 0; i < LOCKHASH_SIZE; i++)
 		INIT_LIST_HEAD(lockhash_table + i);
 
-	argc = parse_options(argc, argv, lock_options, lock_usage,
-			     PARSE_OPT_STOP_AT_NON_OPTION);
+	argc = parse_options_subcommand(argc, argv, lock_options, lock_subcommands,
+					lock_usage, PARSE_OPT_STOP_AT_NON_OPTION);
 	if (!argc)
 		usage_with_options(lock_usage, lock_options);
 
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index f44c04b..ecedab6 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -122,7 +122,7 @@ __perf_main ()
 		evts=$($cmd list --raw-dump)
 		__perfcomp_colon "$evts" "$cur"
 	# List subcommands for perf commands
-	elif [[ $prev == @(kvm|kmem|mem) ]]; then
+	elif [[ $prev == @(kvm|kmem|mem|lock) ]]; then
 		subcmds=$($cmd $prev --list-cmds)
 		__perfcomp_colon "$subcmds" "$cur"
 	# List long option names
-- 
1.8.3.1

[PATCH 09/10] perf sched: Introduce --list-cmds for use by scripts

[Jiri Olsa]

From: Ramkumar Ramachandra <artagnon@gmail.com>

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1394853474-31019-5-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 tools/perf/builtin-sched.c    | 10 ++++++----
 tools/perf/perf-completion.sh |  2 +-
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 9ac0a49..d3fb0ed 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1713,8 +1713,10 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 		"perf sched replay [<options>]",
 		NULL
 	};
-	const char * const sched_usage[] = {
-		"perf sched [<options>] {record|latency|map|replay|script}",
+	const char *const sched_subcommands[] = { "record", "latency", "map",
+						  "replay", "script", NULL };
+	const char *sched_usage[] = {
+		NULL,
 		NULL
 	};
 	struct trace_sched_handler lat_ops  = {
@@ -1736,8 +1738,8 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 	for (i = 0; i < ARRAY_SIZE(sched.curr_pid); i++)
 		sched.curr_pid[i] = -1;
 
-	argc = parse_options(argc, argv, sched_options, sched_usage,
-			     PARSE_OPT_STOP_AT_NON_OPTION);
+	argc = parse_options_subcommand(argc, argv, sched_options, sched_subcommands,
+					sched_usage, PARSE_OPT_STOP_AT_NON_OPTION);
 	if (!argc)
 		usage_with_options(sched_usage, sched_options);
 
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index ecedab6..3356984 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -122,7 +122,7 @@ __perf_main ()
 		evts=$($cmd list --raw-dump)
 		__perfcomp_colon "$evts" "$cur"
 	# List subcommands for perf commands
-	elif [[ $prev == @(kvm|kmem|mem|lock) ]]; then
+	elif [[ $prev == @(kvm|kmem|mem|lock|sched) ]]; then
 		subcmds=$($cmd $prev --list-cmds)
 		__perfcomp_colon "$subcmds" "$cur"
 	# List long option names
-- 
1.8.3.1

[PATCH 10/10] MAINTAINERS: Change e-mail to kernel.org one

[Jiri Olsa]

From: Arnaldo Carvalho de Melo <acme@redhat.com>

Leaving ghostprotocols.net for old networking stuff.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-jott6d40nkjjc3vvh3vw53lp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 1ecfde1..b06a9a8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6678,7 +6678,7 @@ PERFORMANCE EVENTS SUBSYSTEM
 M:	Peter Zijlstra <a.p.zijlstra@chello.nl>
 M:	Paul Mackerras <paulus@samba.org>
 M:	Ingo Molnar <mingo@redhat.com>
-M:	Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
+M:	Arnaldo Carvalho de Melo <acme@kernel.org>
 L:	linux-kernel@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
 S:	Supported
-- 
1.8.3.1

Re: [GIT PULL 00/10] perf/core improvements and fixes

[Ingo Molnar]

* Namhyung Kim <namhyung@kernel.org> wrote:

> Hi Andi,
> 
> On Wed, Apr 9, 2014 at 4:50 AM, Andi Kleen <andi@firstfloor.org> wrote:
> > Jiri Olsa <jolsa@redhat.com> writes:
> >
> >> hi Ingo,
> >> please consider pulling
> >
> > So who actually maintains perf user space now?
> >
> > I have at least 4 perf user patchkits/bug fixes pending, but 
> > Arnaldo hasn't answered any email for weeks.

So a bit of background: sloppy, abusive contributors not willing to 
change get ignored after some time. For example Andi got such a bad 
track record in the x86 and perf space with me that all your mails go 
to /dev/null currently. (I only saw this one because Namhyung replied 
to it.)

Andi, as I explained it to you previously, if you want me to merge 
patches from you then you need to 1) improve the way you work 2) send 
it to someone who is willing to deal with you and sign off on it and 
forward it to me.

Seems like you managed to burn up your goodwill with Arnaldo as well. 
You need to find someone else willing to pay the expense of dealing 
with your passive-aggressive style.

Just a quick example of your abuse: for example you know it perfectly 
well that perf is well maintained, a simple 'git log tools/perf/' will 
tell you that there's a steady stream of patches going in and that 
perf contributors are busy.

Yet in this mail you actually lie about that: you pretend that you 
don't know that most Linux maintainers have trouble working with you, 
you pretend that perf is "unmaintained", you pretend that you don't 
know who is maintaining it, just to create unfair pressure on Arnaldo 
...

That kind of approach really sucks, and if you run out of people's 
patience with petty office tactics like that then you should not fault 
them, you should fault yourself.

Thanks,

	Ingo

[GIT PULL v2] perf/core improvements and fixes

[Jiri Olsa]

hi Ingo,
please consider pulling.

v2 has fixed SOB chain for following patch:
  Jiri Olsa (1):
      perf tests: Add thread maps lookup automated tests

no functional change, so not including all patches

thanks,
jirka


The following changes since commit 538592ff0b008237ae88f5ce5fb1247127dc3ce5:

  Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (2014-03-19 08:05:47 +0100)

are available in the git repository at:


  git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git tags/perf-core-for-mingo

for you to fetch changes up to 5c9313860657577d6f6b3489a04bb097faa0184a:

  MAINTAINERS: Change e-mail to kernel.org one (2014-04-09 16:55:37 +0200)

----------------------------------------------------------------
perf/core improvements and fixes:

Documentation:

. Fix documentation of invalid 'perf top -s' option (Namhyung Kim)

. Change e-mail to kernel.org one in MAINTAINERS file (Arnaldo Carvalho de Melo)

Developer stuff:

. Disable unwind libraries when libelf isn't found (Arnaldo Carvalho de Melo)

. Add thread maps lookup automated tests (Jiri Olsa)

. Print event name when showing libtraceevent warnings if possible (Namhyung Kim)

. Add --list-cmds to 'kmem', 'mem', 'lock' and 'sched', for use by completion scripts (Ramkumar
+Ramachandra)

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      perf callchains: Disable unwind libraries when libelf isn't found
      MAINTAINERS: Change e-mail to kernel.org one

Jiri Olsa (1):
      perf tests: Add thread maps lookup automated tests

Namhyung Kim (3):
      perf top: Fix documentation of invalid -s option
      tools lib traceevent: Print event name when show warning if possible
      tools lib traceevent: Do not call warning() directly

Ramkumar Ramachandra (4):
      perf kmem: Introduce --list-cmds for use by scripts
      perf mem: Introduce --list-cmds for use by scripts
      perf lock: Introduce --list-cmds for use by scripts
      perf sched: Introduce --list-cmds for use by scripts

 MAINTAINERS                           |   2 +-
 tools/lib/traceevent/event-parse.c    | 109 +++++++++-------
 tools/perf/Documentation/perf-top.txt |   1 -
 tools/perf/Makefile.perf              |   1 +
 tools/perf/builtin-kmem.c             |   8 +-
 tools/perf/builtin-lock.c             |  10 +-
 tools/perf/builtin-mem.c              |  15 ++-
 tools/perf/builtin-sched.c            |  10 +-
 tools/perf/config/Makefile            |   2 +
 tools/perf/perf-completion.sh         |   4 +-
 tools/perf/perf.h                     |   6 +
 tools/perf/tests/builtin-test.c       |   4 +
 tools/perf/tests/mmap-thread-lookup.c | 233 ++++++++++++++++++++++++++++++++++
 tools/perf/tests/tests.h              |   1 +
 14 files changed, 341 insertions(+), 65 deletions(-)
 create mode 100644 tools/perf/tests/mmap-thread-lookup.c