[PATCH] blktrace: from-sector redundant in trace_block_remap, fix

[Li Zefan]

> Removed redundant from-sector parameter: it's /always/ the bio's sector
> passed in.
> 
> Signed-off-by: Alan D. Brunelle <alan.brunelle@xxxxxx>
> Cc: Jens Axboe <jens.axboe@xxxxxxxxxx>
> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> Reviewed-by: Li Zefan <lizf@xxxxxxxxxxxxxx>

I reviewed the older version of this patch, but didn't review it again when
Alan sent out this revised one, and I just found a typo in it...

> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
...
>  DECLARE_TRACE(block_remap,
>  	TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
> -		 sector_t to, sector_t from),
> -	      TP_ARGS(q, bio, dev, to, from));
> +		 sector_t to),
> +	      TP_ARGS(q, bio, dev, to));

It should be 'from', not 'to'.


==============


From: Li Zefan <lizf@xxxxxxxxxxxxxx>
Subject: [PATCH] blktrace: from-sector redundant in trace_block_remap, fix

The last argument of block_remap prober is the original sector
before remap, so it should be 'from', not 'to'.

[ Impact: clean up ]

Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---
 include/trace/block.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/trace/block.h b/include/trace/block.h
index 8ac945b..5b12efa 100644
--- a/include/trace/block.h
+++ b/include/trace/block.h
@@ -70,7 +70,7 @@ DECLARE_TRACE(block_split,
 
 DECLARE_TRACE(block_remap,
 	TP_PROTO(struct request_queue *q, struct bio *bio, dev_t dev,
-		 sector_t to),
-	      TP_ARGS(q, bio, dev, to));
+		 sector_t from),
+	      TP_ARGS(q, bio, dev, from));
 
 #endif
-- 
1.5.4.rc3



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