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blktrace: correct remap names

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This attempts to clarify names utilized during block I/O remap
operations (partition, volume manager). It correctly matches up the
/from/ information for both device & sector. This takes in the concept
from Kosaki Motohiro and extends it to include better naming for the
"device_from" field.

[ Impact: cleanup ]

Signed-off-by: Alan D. Brunelle <alan.brunelle@hp.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <49FF4FAE.3000301@hp.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Alan D. Brunelle 2009-05-04 16:27:26 -04:00 • committed by Ingo Molnar
commit a42aaa3bbc
3 changed files with 16 additions and 16 deletions
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4
include/linux/blktrace_api.h
View file

@ -116,9 +116,9 @@ struct blk_io_trace {
* The remap event
*/
struct blk_io_trace_remap {
__be32 device;
__be32 device_from;
__be64 sector;
__be32 device_to;
__be64 sector_from;
};
enum {

4
include/trace/block.h
View file

@ -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 from, sector_t to),
TP_ARGS(q, bio, dev, from, to));
sector_t to, sector_t from),
TP_ARGS(q, bio, dev, to, from));
#endif