From: Li Zefan <lizf@cn.fujitsu.com>
Date: Wed, 25 Mar 2009 09:18:56 +0000 (+0800)
Subject: blktrace: fix timestamp in binary output
X-Git-Tag: v2.6.30-rc1~2^2~13^5~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c051ce0307526adec32a847f0daa1af2124f0a9;p=pandora-kernel.git

blktrace: fix timestamp in binary output

I found the timestamp is wrong:

 # echo bin > trace_option
 # echo blk > current_tracer
 # cat trace_pipe | blkparse -i -
 8,0    0        0     0.000000000   504  A   W ...
 ...
 8,7    1        0     0.008534097     0  C   R ...
            (should be 8.534097xxx)

user-space blkparse expects the timestamp to be nanosecond.

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>
---

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