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authorLi Zefan <lizf@cn.fujitsu.com>2009-03-27 10:19:46 +0800
committerIngo Molnar <mingo@elte.hu>2009-03-31 17:27:36 +0200
commit35ac51bfe4c293b67ce9f85082ba0b9bc6123c40 (patch)
tree0853820b03650725795308550e9a63fadac3d771
parenteb08f8eb0673d9c1e62b69ad1b41593e73c40467 (diff)
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blktrace: make classic output more classic
Impact: fix ftrace plugin timestamp output In the classic user-space blktrace, the output timestamp is sec.nsec not sec.usec. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Jens Axboe <jens.axboe@oracle.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/trace/blktrace.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index d43cdac7c754..5b28f0f119c5 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -994,8 +994,8 @@ static void get_pdu_remap(const struct trace_entry *ent,
static int blk_log_action_iter(struct trace_iterator *iter, const char *act)
{
char rwbs[6];
- unsigned long long ts = ns2usecs(iter->ts);
- unsigned long usec_rem = do_div(ts, USEC_PER_SEC);
+ unsigned long long ts = iter->ts;
+ unsigned long nsec_rem = do_div(ts, NSEC_PER_SEC);
unsigned secs = (unsigned long)ts;
const struct trace_entry *ent = iter->ent;
const struct blk_io_trace *t = (const struct blk_io_trace *)ent;
@@ -1003,9 +1003,9 @@ static int blk_log_action_iter(struct trace_iterator *iter, const char *act)
fill_rwbs(rwbs, t);
return trace_seq_printf(&iter->seq,
- "%3d,%-3d %2d %5d.%06lu %5u %2s %3s ",
+ "%3d,%-3d %2d %5d.%09lu %5u %2s %3s ",
MAJOR(t->device), MINOR(t->device), iter->cpu,
- secs, usec_rem, ent->pid, act, rwbs);
+ secs, nsec_rem, ent->pid, act, rwbs);
}
static int blk_log_action_seq(struct trace_seq *s, const struct blk_io_trace *t,