linux-kernel - Re: [PATCH] block/blk-core.c: print readable string instead of values.

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Date:	Mon, 14 Apr 2014 15:00:56 -0700
From:	Muthukumar R <muthu.lkml@...il.com>
To:	Jianyu Zhan <nasa4836@...il.com>
Cc:	Jens Axboe <axboe@...nel.dk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] block/blk-core.c: print readable string instead of values.

FYI, bi_rw tracks more than WRITE or READ...

On Sat, Apr 12, 2014 at 12:22 AM, Jianyu Zhan <nasa4836@...il.com> wrote:
> Print the r/w direction string instead of internal values.
>
> Signed-off-by: Jianyu Zhan <nasa4836@...il.com>
> ---
>  block/blk-core.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/block/blk-core.c b/block/blk-core.c
> index a0e3096..0a3bde3 100644
> --- a/block/blk-core.c
> +++ b/block/blk-core.c
> @@ -1625,9 +1625,9 @@ static void handle_bad_sector(struct bio *bio)
>         char b[BDEVNAME_SIZE];
>
>         printk(KERN_INFO "attempt to access beyond end of device\n");
> -       printk(KERN_INFO "%s: rw=%ld, want=%Lu, limit=%Lu\n",
> +       printk(KERN_INFO "%s: rw=%s, want=%Lu, limit=%Lu\n",
>                         bdevname(bio->bi_bdev, b),
> -                       bio->bi_rw,
> +                       (bio->bi_rw & WRITE) ? "WRITE" : "READ",
>                         (unsigned long long)bio_end_sector(bio),
>                         (long long)(i_size_read(bio->bi_bdev->bd_inode) >> 9));
>
> --
> 1.9.0.GIT
>
> --
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