Re: [PATCH 1/2] libceph: fail the sparse-read if there still has data in socket

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On Fri, Dec 8, 2023 at 5:34 AM <xiubli@xxxxxxxxxx> wrote:
>
> From: Xiubo Li <xiubli@xxxxxxxxxx>
>
> Once this happens that means there have bugs.
>
> URL: https://tracker.ceph.com/issues/63586
> Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx>
> ---
>  net/ceph/osd_client.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
> index 5753036d1957..848ef19055a0 100644
> --- a/net/ceph/osd_client.c
> +++ b/net/ceph/osd_client.c
> @@ -5912,10 +5912,12 @@ static int osd_sparse_read(struct ceph_connection *con,
>                 fallthrough;
>         case CEPH_SPARSE_READ_DATA:
>                 if (sr->sr_index >= count) {
> -                       if (sr->sr_datalen && count)
> +                       if (sr->sr_datalen) {
>                                 pr_warn_ratelimited("sr_datalen %u sr_index %d count %u\n",
>                                                     sr->sr_datalen, sr->sr_index,
>                                                     count);
> +                               return -EREMOTEIO;
> +                       }
>
>                         sr->sr_state = CEPH_SPARSE_READ_HDR;
>                         goto next_op;
> --
> 2.43.0
>

Hi Xiubo,

There is a patch in linux-next, also from you, which is conflicting
with this one: cca19d307d35 ("libceph: check the data length when
sparse read finishes").  Do you want it replaced?

Thanks,

                Ilya





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