Re: [Patch v3 11/19] CIFS: SMBD: Define memory registration for I/O data

[Pavel Shilovsky]

2017-08-29 12:29 GMT-07:00 Long Li <longli@xxxxxxxxxxxxxxxxxxxxxx>:
> From: Long Li <longli@xxxxxxxxxxxxx>
>
> To prepare for RDMA read/write using memory registration, add memory
> registartion pointers to upper layer data I/O context.
>
> Signed-off-by: Long Li <longli@xxxxxxxxxxxxx>
> ---
>  fs/cifs/cifsglob.h | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
> index dc5404d..dcd2b63 100644
> --- a/fs/cifs/cifsglob.h
> +++ b/fs/cifs/cifsglob.h
> @@ -1166,6 +1166,7 @@ struct cifs_readdata {
>                                 struct cifs_readdata *rdata,
>                                 struct iov_iter *iter);
>         struct kvec                     iov[2];
> +       struct smbd_mr                  *mr;
>         unsigned int                    pagesz;
>         unsigned int                    tailsz;
>         unsigned int                    credits;
> @@ -1188,6 +1189,7 @@ struct cifs_writedata {
>         pid_t                           pid;
>         unsigned int                    bytes;
>         int                             result;
> +       struct smbd_mr                  *mr;
>         unsigned int                    pagesz;
>         unsigned int                    tailsz;
>         unsigned int                    credits;
> --
> 2.7.4
>
> --
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The same thing: let's not add structure fields that the code doesn't
do anything with.

--
Best regards,
Pavel Shilovsky