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authorFrederic Weisbecker <fweisbec@gmail.com>2010-05-05 23:57:25 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-05-09 13:45:27 +0200
commit84c7a21791eb2e962a27e19bab5b77d5d9e13a34 (patch)
treef61363b358a58c164b5b457a70e4eb9d0da0fdd1 /tools/perf/builtin-lock.c
parent10350ec362b48f79f3df8447c25813790075e27c (diff)
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perf: Humanize lock flags in perf lock
Use an enum instead of plain constants for lock flags. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Diffstat (limited to 'tools/perf/builtin-lock.c')
-rw-r--r--tools/perf/builtin-lock.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 1e93179c2d3..3b304ed4d2e 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -397,6 +397,11 @@ enum broken_state {
static int bad_hist[BROKEN_MAX];
+enum acquire_flags {
+ TRY_LOCK = 1,
+ READ_LOCK = 2,
+};
+
static void
report_lock_acquire_event(struct trace_acquire_event *acquire_event,
struct event *__event __used,
@@ -421,9 +426,9 @@ report_lock_acquire_event(struct trace_acquire_event *acquire_event,
if (!acquire_event->flag) {
seq->state = SEQ_STATE_ACQUIRING;
} else {
- if (acquire_event->flag & 1)
+ if (acquire_event->flag & TRY_LOCK)
ls->nr_trylock++;
- if (acquire_event->flag & 2)
+ if (acquire_event->flag & READ_LOCK)
ls->nr_readlock++;
seq->state = SEQ_STATE_READ_ACQUIRED;
seq->read_count = 1;
@@ -431,7 +436,7 @@ report_lock_acquire_event(struct trace_acquire_event *acquire_event,
}
break;
case SEQ_STATE_READ_ACQUIRED:
- if (acquire_event->flag & 2) {
+ if (acquire_event->flag & READ_LOCK) {
seq->read_count++;
ls->nr_acquired++;
goto end;