Re: [Patch v3 11/19] CIFS: SMBD: Define memory registration for I/O data
From: Pavel Shilovsky
Date: Tue Aug 29 2017 - 20:49:03 EST
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