Re: [PATCH v3 07/26] block: Use bio_sectors() more consistently

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Kent Overstreet wrote:
> Bunch of places in the code weren't using it where they could be -
> this'll reduce the size of the patch that puts bi_sector/bi_size/bi_idx
> into a struct bvec_iter.
> 
> Signed-off-by: Kent Overstreet <koverstreet@xxxxxxxxxx>
> CC: Jens Axboe <axboe@xxxxxxxxx>
> CC: "Ed L. Cashin" <ecashin@xxxxxxxxxx>
> CC: Nick Piggin <npiggin@xxxxxxxxx>
> CC: Jiri Kosina <jkosina@xxxxxxx>
> CC: Jim Paris <jim@xxxxxxxx>
> CC: Geoff Levand <geoff@xxxxxxxxxxxxx>
> CC: Alasdair Kergon <agk@xxxxxxxxxx>
> CC: dm-devel@xxxxxxxxxx
> CC: Neil Brown <neilb@xxxxxxx>
> CC: Steven Rostedt <rostedt@xxxxxxxxxxx>
> ---
>  drivers/block/aoe/aoecmd.c   |  2 +-
>  drivers/block/brd.c          |  3 +--
>  drivers/block/pktcdvd.c      |  2 +-
>  drivers/block/ps3vram.c      |  2 +-
>  drivers/md/dm-raid1.c        |  2 +-
>  drivers/md/raid0.c           |  6 +++---
>  drivers/md/raid1.c           | 17 ++++++++---------
>  drivers/md/raid10.c          | 24 +++++++++++-------------
>  drivers/md/raid5.c           |  8 ++++----
>  include/trace/events/block.h | 10 +++++-----
>  10 files changed, 36 insertions(+), 40 deletions(-)
...
> diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
> index f58cdcf..1ff38e8 100644
> --- a/drivers/block/ps3vram.c
> +++ b/drivers/block/ps3vram.c
> @@ -553,7 +553,7 @@ static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev,
>  	struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
>  	int write = bio_data_dir(bio) == WRITE;
>  	const char *op = write ? "write" : "read";
> -	loff_t offset = bio->bi_sector << 9;
> +	loff_t offset = bio_sectors(bio);

This doesn't look right to me: bio_sectors(bio) is (bio->bi_size>>9),
not (bio->bi_sector<<9~)?

-jim

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