Merge commit 'v2.6.32-rc5' into perf/probes

Conflicts:
	kernel/trace/trace_event_profile.c

Merge reason: update to -rc5 and resolve conflict.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

5 files changed, 126 insertions, 75 deletions

diff --git a/tools/perf/util/module.c b/tools/perf/util/module.c
index 3d567fe59c79..0d8c85defcd2 100644
--- a/tools/perf/util/module.c
+++ b/tools/perf/util/module.c
@@ -4,6 +4,7 @@
 #include "module.h"
 
 #include <libelf.h>
+#include <libgen.h>
 #include <gelf.h>
 #include <elf.h>
 #include <dirent.h>
@@ -409,35 +410,40 @@ out_failure:
 static int mod_dso__load_module_paths(struct mod_dso *self)
 {
 	struct utsname uts;
-	int count = 0, len;
+	int count = 0, len, err = -1;
 	char *line = NULL;
 	FILE *file;
-	char *path;
+	char *dpath, *dir;
 	size_t n;
 
 	if (uname(&uts) < 0)
-		goto out_failure;
+		return err;
 
 	len = strlen("/lib/modules/");
 	len += strlen(uts.release);
 	len += strlen("/modules.dep");
 
-	path = calloc(1, len);
-	if (path == NULL)
-		goto out_failure;
+	dpath = calloc(1, len + 1);
+	if (dpath == NULL)
+		return err;
 
-	strcat(path, "/lib/modules/");
-	strcat(path, uts.release);
-	strcat(path, "/modules.dep");
+	strcat(dpath, "/lib/modules/");
+	strcat(dpath, uts.release);
+	strcat(dpath, "/modules.dep");
 
-	file = fopen(path, "r");
-	free(path);
+	file = fopen(dpath, "r");
 	if (file == NULL)
 		goto out_failure;
 
+	dir = dirname(dpath);
+	if (!dir)
+		goto out_failure;
+	strcat(dir, "/");
+
 	while (!feof(file)) {
-		char *name, *tmp;
 		struct module *module;
+		char *name, *path, *tmp;
+		FILE *modfile;
 		int line_len;
 
 		line_len = getline(&line, &n, file);
@@ -445,17 +451,41 @@ static int mod_dso__load_module_paths(struct mod_dso *self)
 			break;
 
 		if (!line)
-			goto out_failure;
+			break;
 
 		line[--line_len] = '\0'; /* \n */
 
-		path = strtok(line, ":");
+		path = strchr(line, ':');
+		if (!path)
+			break;
+		*path = '\0';
+
+		path = strdup(line);
 		if (!path)
-			goto out_failure;
+			break;
+
+		if (!strstr(path, dir)) {
+			if (strncmp(path, "kernel/", 7))
+				break;
+
+			free(path);
+			path = calloc(1, strlen(dir) + strlen(line) + 1);
+			if (!path)
+				break;
+			strcat(path, dir);
+			strcat(path, line);
+		}
+
+		modfile = fopen(path, "r");
+		if (modfile == NULL)
+			break;
+		fclose(modfile);
 
 		name = strdup(path);
-		name = strtok(name, "/");
+		if (!name)
+			break;
 
+		name = strtok(name, "/");
 		tmp = name;
 
 		while (tmp) {
@@ -463,26 +493,25 @@ static int mod_dso__load_module_paths(struct mod_dso *self)
 			if (tmp)
 				name = tmp;
 		}
+
 		name = strsep(&name, ".");
+		if (!name)
+			break;
 
-		/* Quirk: replace '-' with '_' in sound modules */
+		/* Quirk: replace '-' with '_' in all modules */
 		for (len = strlen(name); len; len--) {
 			if (*(name+len) == '-')
 				*(name+len) = '_';
 		}
 
 		module = module__new(name, path);
-		if (!module) {
-			fprintf(stderr, "load_module_paths: allocation error\n");
-			goto out_failure;
-		}
+		if (!module)
+			break;
 		mod_dso__insert_module(self, module);
 
 		module->sections = sec_dso__new_dso("sections");
-		if (!module->sections) {
-			fprintf(stderr, "load_module_paths: allocation error\n");
-			goto out_failure;
-		}
+		if (!module->sections)
+			break;
 
 		module->active = mod_dso__load_sections(module);
 
@@ -490,13 +519,20 @@ static int mod_dso__load_module_paths(struct mod_dso *self)
 			count++;
 	}
 
-	free(line);
-	fclose(file);
-
-	return count;
+	if (feof(file))
+		err = count;
+	else
+		fprintf(stderr, "load_module_paths: modules.dep parsing failure!\n");
 
 out_failure:
-	return -1;
+	if (dpath)
+		free(dpath);
+	if (file)
+		fclose(file);
+	if (line)
+		free(line);
+
+	return err;
 }
 
 int mod_dso__load_modules(struct mod_dso *dso)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 13ab4b842d49..8cfb48cbbea0 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -165,33 +165,31 @@ struct tracepoint_path *tracepoint_id_to_path(u64 config)
 	DIR *sys_dir, *evt_dir;
 	struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
 	char id_buf[4];
-	int sys_dir_fd, fd;
+	int fd;
 	u64 id;
 	char evt_path[MAXPATHLEN];
+	char dir_path[MAXPATHLEN];
 
 	if (valid_debugfs_mount(debugfs_path))
 		return NULL;
 
 	sys_dir = opendir(debugfs_path);
 	if (!sys_dir)
-		goto cleanup;
-	sys_dir_fd = dirfd(sys_dir);
+		return NULL;
 
 	for_each_subsystem(sys_dir, sys_dirent, sys_next) {
-		int dfd = openat(sys_dir_fd, sys_dirent.d_name,
-				 O_RDONLY|O_DIRECTORY), evt_dir_fd;
-		if (dfd == -1)
-			continue;
-		evt_dir = fdopendir(dfd);
-		if (!evt_dir) {
-			close(dfd);
+
+		snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
+			 sys_dirent.d_name);
+		evt_dir = opendir(dir_path);
+		if (!evt_dir)
 			continue;
-		}
-		evt_dir_fd = dirfd(evt_dir);
+
 		for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
-			snprintf(evt_path, MAXPATHLEN, "%s/id",
+
+			snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
 				 evt_dirent.d_name);
-			fd = openat(evt_dir_fd, evt_path, O_RDONLY);
+			fd = open(evt_path, O_RDONLY);
 			if (fd < 0)
 				continue;
 			if (read(fd, id_buf, sizeof(id_buf)) < 0) {
@@ -225,7 +223,6 @@ struct tracepoint_path *tracepoint_id_to_path(u64 config)
 		closedir(evt_dir);
 	}
 
-cleanup:
 	closedir(sys_dir);
 	return NULL;
 }
@@ -694,7 +691,10 @@ static void store_event_type(const char *orgname)
 	FILE *file;
 	int id;
 
-	sprintf(filename, "/sys/kernel/debug/tracing/events/%s/id", orgname);
+	sprintf(filename, "%s/", debugfs_path);
+	strncat(filename, orgname, strlen(orgname));
+	strcat(filename, "/id");
+
 	c = strchr(filename, ':');
 	if (c)
 		*c = '/';
@@ -761,28 +761,24 @@ static void print_tracepoint_events(void)
 {
 	DIR *sys_dir, *evt_dir;
 	struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
-	int sys_dir_fd;
 	char evt_path[MAXPATHLEN];
+	char dir_path[MAXPATHLEN];
 
 	if (valid_debugfs_mount(debugfs_path))
 		return;
 
 	sys_dir = opendir(debugfs_path);
 	if (!sys_dir)
-		goto cleanup;
-	sys_dir_fd = dirfd(sys_dir);
+		return;
 
 	for_each_subsystem(sys_dir, sys_dirent, sys_next) {
-		int dfd = openat(sys_dir_fd, sys_dirent.d_name,
-				 O_RDONLY|O_DIRECTORY), evt_dir_fd;
-		if (dfd == -1)
-			continue;
-		evt_dir = fdopendir(dfd);
-		if (!evt_dir) {
-			close(dfd);
+
+		snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
+			 sys_dirent.d_name);
+		evt_dir = opendir(dir_path);
+		if (!evt_dir)
 			continue;
-		}
-		evt_dir_fd = dirfd(evt_dir);
+
 		for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
 			snprintf(evt_path, MAXPATHLEN, "%s:%s",
 				 sys_dirent.d_name, evt_dirent.d_name);
@@ -791,8 +787,6 @@ static void print_tracepoint_events(void)
 		}
 		closedir(evt_dir);
 	}
-
-cleanup:
 	closedir(sys_dir);
 }
 
diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c
index a778fd0f4ae4..856655d8b0b8 100644
--- a/tools/perf/util/svghelper.c
+++ b/tools/perf/util/svghelper.c
@@ -28,7 +28,7 @@ static u64 turbo_frequency, max_freq;
 
 int svg_page_width = 1000;
 
-#define MIN_TEXT_SIZE 0.001
+#define MIN_TEXT_SIZE 0.01
 
 static u64 total_height;
 static FILE *svgfile;
@@ -217,6 +217,18 @@ static char *cpu_model(void)
 		}
 		fclose(file);
 	}
+
+	/* CPU type */
+	file = fopen("/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies", "r");
+	if (file) {
+		while (fgets(buf, 255, file)) {
+			unsigned int freq;
+			freq = strtoull(buf, NULL, 10);
+			if (freq > max_freq)
+				max_freq = freq;
+		}
+		fclose(file);
+	}
 	return cpu_m;
 }
 
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index fd3d9c8e90fc..47ea0609a760 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -324,8 +324,7 @@ static inline int elf_sym__is_function(const GElf_Sym *sym)
 {
 	return elf_sym__type(sym) == STT_FUNC &&
 	       sym->st_name != 0 &&
-	       sym->st_shndx != SHN_UNDEF &&
-	       sym->st_size != 0;
+	       sym->st_shndx != SHN_UNDEF;
 }
 
 static inline int elf_sym__is_label(const GElf_Sym *sym)
@@ -833,7 +832,7 @@ int dso__load_modules(struct dso *self, symbol_filter_t filter, int v)
 	struct mod_dso *mods = mod_dso__new_dso("modules");
 	struct module *pos;
 	struct rb_node *next;
-	int err;
+	int err, count = 0;
 
 	err = mod_dso__load_modules(mods);
 
@@ -852,14 +851,16 @@ int dso__load_modules(struct dso *self, symbol_filter_t filter, int v)
 			break;
 
 		next = rb_next(&pos->rb_node);
+		count += err;
 	}
 
 	if (err < 0) {
 		mod_dso__delete_modules(mods);
 		mod_dso__delete_self(mods);
+		return err;
 	}
 
-	return err;
+	return count;
 }
 
 static inline void dso__fill_symbol_holes(struct dso *self)
@@ -913,8 +914,15 @@ int dso__load_kernel(struct dso *self, const char *vmlinux,
 
 	if (vmlinux) {
 		err = dso__load_vmlinux(self, vmlinux, filter, v);
-		if (err > 0 && use_modules)
-			err = dso__load_modules(self, filter, v);
+		if (err > 0 && use_modules) {
+			int syms = dso__load_modules(self, filter, v);
+
+			if (syms < 0) {
+				fprintf(stderr, "dso__load_modules failed!\n");
+				return syms;
+			}
+			err += syms;
+		}
 	}
 
 	if (err <= 0)
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index f6a8437141c8..55c9659a56e2 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -618,7 +618,7 @@ static int test_type(enum event_type type, enum event_type expect)
 }
 
 static int test_type_token(enum event_type type, char *token,
-		    enum event_type expect, char *expect_tok)
+		    enum event_type expect, const char *expect_tok)
 {
 	if (type != expect) {
 		die("Error: expected type %d but read %d",
@@ -650,7 +650,7 @@ static int read_expect_type(enum event_type expect, char **tok)
 	return __read_expect_type(expect, tok, 1);
 }
 
-static int __read_expected(enum event_type expect, char *str, int newline_ok)
+static int __read_expected(enum event_type expect, const char *str, int newline_ok)
 {
 	enum event_type type;
 	char *token;
@@ -668,12 +668,12 @@ static int __read_expected(enum event_type expect, char *str, int newline_ok)
 	return 0;
 }
 
-static int read_expected(enum event_type expect, char *str)
+static int read_expected(enum event_type expect, const char *str)
 {
 	return __read_expected(expect, str, 1);
 }
 
-static int read_expected_item(enum event_type expect, char *str)
+static int read_expected_item(enum event_type expect, const char *str)
 {
 	return __read_expected(expect, str, 0);
 }
@@ -1968,10 +1968,11 @@ static const struct flag flags[] = {
 	{ "NET_TX_SOFTIRQ", 2 },
 	{ "NET_RX_SOFTIRQ", 3 },
 	{ "BLOCK_SOFTIRQ", 4 },
-	{ "TASKLET_SOFTIRQ", 5 },
-	{ "SCHED_SOFTIRQ", 6 },
-	{ "HRTIMER_SOFTIRQ", 7 },
-	{ "RCU_SOFTIRQ", 8 },
+	{ "BLOCK_IOPOLL_SOFTIRQ", 5 },
+	{ "TASKLET_SOFTIRQ", 6 },
+	{ "SCHED_SOFTIRQ", 7 },
+	{ "HRTIMER_SOFTIRQ", 8 },
+	{ "RCU_SOFTIRQ", 9 },
 
 	{ "HRTIMER_NORESTART", 0 },
 	{ "HRTIMER_RESTART", 1 },