linux-kernel - Re: [PATCH 10/10] udf: constify udf_bitmap

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Message-ID: <20080131165244.GJ1461@duck.suse.cz>
Date:	Thu, 31 Jan 2008 17:52:44 +0100
From:	Jan Kara <jack@...e.cz>
To:	marcin.slusarz@...il.com
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 10/10] udf: constify udf_bitmap_lookup array

On Wed 30-01-08 22:04:00, marcin.slusarz@...il.com wrote:
> udf_bitmap_lookup never changes, so constify it
> 
> Signed-off-by: Marcin Slusarz <marcin.slusarz@...il.com>
> Cc: Jan Kara <jack@...e.cz>
  Hmm, rather than doing this, could you change the function to use
standard functions for counting set bits? I guess bitmap_weight() in
include/linux/bitmap.h should be what we need... Thanks.

								Honza

> ---
>  fs/udf/super.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/udf/super.c b/fs/udf/super.c
> index 3afe764..6bb2a5b 100644
> --- a/fs/udf/super.c
> +++ b/fs/udf/super.c
> @@ -1969,7 +1969,7 @@ static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
>  	return 0;
>  }
>  
> -static unsigned char udf_bitmap_lookup[16] = {
> +static const unsigned char udf_bitmap_lookup[16] = {
>  	0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4
>  };
>  
> -- 
> 1.5.3.7
> 
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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