On 08/02/2012 03:36 PM, Boaz Harrosh wrote:
> From: Peng Tao <bergwolf@xxxxxxxxx>
>
Trond Hi
I forgot the From: Peng ... on the first post please use this
one
Thanks
Boaz
> To allow layout driver to pass private information around
> pg_init/pg_doio.
>
> Signed-off-by: Peng Tao <tao.peng@xxxxxxx>
> Signed-off-by: Boaz Harrosh <bharrosh@xxxxxxxxxxx>
> ---
> fs/nfs/pagelist.c | 2 ++
> include/linux/nfs_page.h | 1 +
> include/linux/nfs_xdr.h | 1 +
> 3 files changed, 4 insertions(+)
>
> diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
> index aed913c..342ca5e 100644
> --- a/fs/nfs/pagelist.c
> +++ b/fs/nfs/pagelist.c
> @@ -49,6 +49,7 @@ void nfs_pgheader_init(struct nfs_pageio_descriptor *desc,
> hdr->io_start = req_offset(hdr->req);
> hdr->good_bytes = desc->pg_count;
> hdr->dreq = desc->pg_dreq;
> + hdr->layout_private = desc->pg_layout_private;
> hdr->release = release;
> hdr->completion_ops = desc->pg_completion_ops;
> if (hdr->completion_ops->init_hdr)
> @@ -267,6 +268,7 @@ void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
> desc->pg_error = 0;
> desc->pg_lseg = NULL;
> desc->pg_dreq = NULL;
> + desc->pg_layout_private = NULL;
> }
>
> /**
> diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
> index 88d166b..63093b1 100644
> --- a/include/linux/nfs_page.h
> +++ b/include/linux/nfs_page.h
> @@ -69,6 +69,7 @@ struct nfs_pageio_descriptor {
> const struct nfs_pgio_completion_ops *pg_completion_ops;
> struct pnfs_layout_segment *pg_lseg;
> struct nfs_direct_req *pg_dreq;
> + void *pg_layout_private;
> };
>
> #define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags))
> diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
> index 8aadd90..58023cd 100644
> --- a/include/linux/nfs_xdr.h
> +++ b/include/linux/nfs_xdr.h
> @@ -1244,6 +1244,7 @@ struct nfs_pgio_header {
> void (*release) (struct nfs_pgio_header *hdr);
> const struct nfs_pgio_completion_ops *completion_ops;
> struct nfs_direct_req *dreq;
> + void *layout_private;
> spinlock_t lock;
> /* fields protected by lock */
> int pnfs_error;
--
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