Quoting Dan Smith ([email protected]):
> +static int __sock_write_skb_frag(struct ckpt_ctx *ctx,
> + skb_frag_t *frag)
> +{
> + struct ckpt_hdr_socket_buffer_frag *h;
> + int ret;
> +
> + h = ckpt_hdr_get_type(ctx, sizeof(*h), CKPT_HDR_SOCKET_FRAG);
> + if (!h)
> + return -ENOMEM;
> +
> + h->size = frag->size;
> + h->offset = frag->page_offset;
> +
> + ret = ckpt_write_obj(ctx, (struct ckpt_hdr *)h);
> + ckpt_hdr_put(ctx, h);
> + if (ret < 0)
> + goto out;
> +
> + ret = checkpoint_dump_page(ctx, frag->page);
> + ckpt_debug("writing frag page: %i\n", ret);
> + if (ret < 0)
> + goto out;
> +
> + out:
> + ckpt_hdr_put(ctx, h);
I assume you meant to get rid of this second ckpt_hdr_put()?
> +
> + return ret;
> +}
> +
> static int __sock_write_skb(struct ckpt_ctx *ctx,
> struct sk_buff *skb,
> int dst_objref)
> @@ -316,16 +348,12 @@ static int __sock_write_skb(struct ckpt_ctx *ctx,
>
> for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
> skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
> - u8 *vaddr = kmap(frag->page);
> -
> + ret = __sock_write_skb_frag(ctx, frag);
> ckpt_debug("writing buffer fragment %i/%i (%i)\n",
> - i + 1, h->nr_frags, frag->size);
> - ret = ckpt_write_obj_type(ctx, vaddr + frag->page_offset,
> - frag->size, CKPT_HDR_BUFFER);
> - kunmap(frag->page);
> - h->frg_len -= frag->size;
> + i + 1, h->nr_frags, ret);
> if (ret < 0)
> goto out;
> + h->frg_len -= frag->size;
> }
>
> WARN_ON(h->frg_len != 0);
> --
> 1.6.2.5
>
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