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blktrace: make classic output more classic

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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>
This commit is contained in:
Li Zefan 2009-03-27 10:19:46 +08:00 committed by Ingo Molnar
parent eb08f8eb06
commit 35ac51bfe4
1 changed files with 4 additions and 4 deletions
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8
kernel/trace/blktrace.c
View file

@ -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,