From: Li Zefan <lizf@cn.fujitsu.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jens Axboe <jens.axboe@oracle.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/6] blktrace: make classic output more classic
Date: Fri, 27 Mar 2009 10:19:46 +0800 [thread overview]
Message-ID: <49CC37C2.7050307@cn.fujitsu.com> (raw)
In-Reply-To: <49CC37AA.3060908@cn.fujitsu.com>
In the classic user-space blktrace, the output timestamp is sec.nsec
not sec.usec.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
kernel/trace/blktrace.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index d43cdac..933639a 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -995,7 +995,7 @@ 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 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,
--
1.5.4.rc3
next prev parent reply other threads:[~2009-03-27 2:19 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-27 2:19 [PATCH 0/6] blktrace: last round of fixes Li Zefan
2009-03-27 2:19 ` Li Zefan [this message]
2009-03-27 3:30 ` [PATCH 1/6] blktrace: make classic output more classic Li Zefan
2009-03-28 21:27 ` [tip:tracing/blktrace] " Li Zefan
2009-03-30 1:19 ` Li Zefan
2009-03-27 2:20 ` [PATCH 2/6] blktrace: fix blk_probes_ref chaos Li Zefan
2009-03-28 21:28 ` [tip:tracing/blktrace] " Li Zefan
2009-03-30 1:19 ` Li Zefan
2009-03-27 2:20 ` [PATCH 3/6] blktrace: fix memory leak when freeing struct blk_io_trace Li Zefan
2009-03-28 21:28 ` [tip:tracing/blktrace] " Li Zefan
2009-03-30 1:19 ` Li Zefan
2009-03-27 2:21 ` [PATCH 4/6] trace: make argument 'mem' of trace_seq_putmem() const Li Zefan
2009-03-28 21:28 ` [tip:tracing/blktrace] " Li Zefan
2009-03-30 1:20 ` Li Zefan
2009-03-27 2:21 ` [PATCH 5/6] blktrace: extract duplidate code Li Zefan
2009-03-28 21:28 ` [tip:tracing/blktrace] " Li Zefan
2009-03-30 1:20 ` Li Zefan
2009-03-27 2:21 ` [PATCH 6/6] blktrace: print out BLK_TN_MESSAGE properly Li Zefan
2009-03-28 21:28 ` [tip:tracing/blktrace] " Li Zefan
2009-03-30 1:20 ` Li Zefan
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