Re: [PATCH v2 04/14] block: Add bio_clone_kmalloc()

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On Wed, May 23, 2012 at 05:02:41PM -0700, Kent Overstreet wrote:

[..]
> diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
> index 013c7a5..5a953c6 100644
> --- a/drivers/block/rbd.c
> +++ b/drivers/block/rbd.c
> @@ -729,7 +729,7 @@ static struct bio *bio_chain_clone(struct bio **old, struct bio **next,
>  	}
>  
>  	while (old_chain && (total < len)) {
> -		tmp = bio_kmalloc(gfpmask, old_chain->bi_max_vecs);
> +		tmp = bio_clone_kmalloc(old_chain, gfpmask);
>  		if (!tmp)
>  			goto err_out;
>  
> @@ -751,13 +751,9 @@ static struct bio *bio_chain_clone(struct bio **old, struct bio **next,
>  			if (!bp)
>  				goto err_out;
>  
> -			__bio_clone(tmp, &bp->bio1);
> -
>  			*next = &bp->bio2;

Is this code correct. Now original code might clone bio after split and
new code will clone the original bio itself and not the split one?

Thanks
Vivek
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