Re: [PATCH 2/4] blk-wbt: account any writing command as a write

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On Mon, May 07, 2018 at 10:13:33AM -0600, Jens Axboe wrote:
> We currently special case WRITE and FLUSH, but we should really
> just include any command with the write bit set. This ensures
> that we account DISCARD.
> 
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>

Reviewed-by: Omar Sandoval <osandov@xxxxxx>

> Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
> ---
>  block/blk-wbt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/block/blk-wbt.c b/block/blk-wbt.c
> index f92fc84b5e2c..3e34b41bcefc 100644
> --- a/block/blk-wbt.c
> +++ b/block/blk-wbt.c
> @@ -701,7 +701,7 @@ static int wbt_data_dir(const struct request *rq)
>  
>  	if (op == REQ_OP_READ)
>  		return READ;
> -	else if (op == REQ_OP_WRITE || op == REQ_OP_FLUSH)
> +	else if (op_is_write(op))
>  		return WRITE;
>  
>  	/* don't account */
> -- 
> 2.7.4
> 
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