linux-kernel - Re: [PATCHv3 7/8] zram: drop not used table `count' member

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Date:	Thu, 16 Jan 2014 14:52:26 +0100
From:	Jerome Marchand <jmarchan@...hat.com>
To:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Minchan Kim <minchan@...nel.org>,
	Nitin Gupta <ngupta@...are.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv3 7/8] zram: drop not used table `count' member

On 01/16/2014 02:12 PM, Sergey Senozhatsky wrote:
> struct table `count' member is not used.

What was the intended use of this counter anyway?

> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
> ---
>  drivers/block/zram/zram_drv.h | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
> index 58d4ac5..1d5b1f5 100644
> --- a/drivers/block/zram/zram_drv.h
> +++ b/drivers/block/zram/zram_drv.h
> @@ -64,7 +64,6 @@ enum zram_pageflags {
>  struct table {
>  	unsigned long handle;
>  	u16 size;	/* object size (excluding header) */
> -	u8 count;	/* object ref count (not yet used) */
>  	u8 flags;

I noticed that your earlier version of this patch changed the
flags size to 16. What has changed?

Jerome

>  } __aligned(4);
>  
> 

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