linux-kernel - Re: [PATCH] gfs2: better code for translating characters

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Date:	Mon, 13 Aug 2007 11:08:26 +0800
From:	"rae l" <crquan@...il.com>
To:	"Steven Whitehouse" <swhiteho@...hat.com>
Cc:	cluster-devel@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] gfs2: better code for translating characters

On 8/13/07, Denis Cheng <crquan@...il.com> wrote:
> the original code could work, but I think this code could work better.
>
> Signed-off-by: Denis Cheng <crquan@...il.com>
> ---
>  fs/gfs2/ops_fstype.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
> index cf5aa50..b9a7759 100644
> --- a/fs/gfs2/ops_fstype.c
> +++ b/fs/gfs2/ops_fstype.c
> @@ -145,7 +145,8 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
>         snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto);
>         snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table);
>
> -       while ((table = strchr(sdp->sd_table_name, '/')))
> +       table = sdp->sd_table_name;
> +       while ((table = strchr(table, '/')))
>                 *table = '_';
Sorry, I don't know what the while loop really means, what's the
common case that slash character exists? if the '/' appears multiple,
the latter code would be better; however, if slash appears rarely, the
original would still be better.

>
>  out:
> --
> 1.5.2.2
>
>


-- 
Denis Cheng
Linux Application Developer

"One of my most productive days was throwing away 1000 lines of code."
 - Ken Thompson.
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