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authorFrederic Weisbecker <fweisbec@gmail.com>2009-08-31 06:45:18 +0200
committerIngo Molnar <mingo@elte.hu>2009-08-31 10:04:48 +0200
commit5b447a6a13ea823b698bf4c01193654fd7ebf4ec (patch)
tree7d3e1c20cf2fe4dbeb1a64910ace3e222bc6ad6a /tools/perf/util
parentec7ba4ea1d605029fb09601ab4ad3053bc1f519c (diff)
downloadop-kernel-dev-5b447a6a13ea823b698bf4c01193654fd7ebf4ec.zip
op-kernel-dev-5b447a6a13ea823b698bf4c01193654fd7ebf4ec.tar.gz
perf tools: Librarize idle thread registration
Librarize register_idle_thread() used by annotate and report. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1251693921-6579-1-git-send-email-fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util')
-rw-r--r--tools/perf/util/thread.c13
-rw-r--r--tools/perf/util/thread.h2
2 files changed, 15 insertions, 0 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index f98032c..3acd37f 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -80,6 +80,19 @@ threads__findnew(pid_t pid, struct rb_root *threads, struct thread **last_match)
return th;
}
+struct thread *
+register_idle_thread(struct rb_root *threads, struct thread **last_match)
+{
+ struct thread *thread = threads__findnew(0, threads, last_match);
+
+ if (!thread || thread__set_comm(thread, "[idle]")) {
+ fprintf(stderr, "problem inserting idle task.\n");
+ exit(-1);
+ }
+
+ return thread;
+}
+
void thread__insert_map(struct thread *self, struct map *map)
{
struct map *pos, *tmp;
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index b1c6671..634f280 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -13,6 +13,8 @@ struct thread {
int thread__set_comm(struct thread *self, const char *comm);
struct thread *
threads__findnew(pid_t pid, struct rb_root *threads, struct thread **last_match);
+struct thread *
+register_idle_thread(struct rb_root *threads, struct thread **last_match);
void thread__insert_map(struct thread *self, struct map *map);
int thread__fork(struct thread *self, struct thread *parent);
struct map *thread__find_map(struct thread *self, u64 ip);
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