On 07/28/2011 10:30 AM, Jim Rees wrote:
> From: Andy Adamson <andros@xxxxxxxxxx>
>
> This gives layout driver a chance to cleanup structures they put in at
> encode_layoutcommit.
>
> Signed-off-by: Andy Adamson <andros@xxxxxxxxxx>
> [fixup layout header pointer for layoutcommit]
> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxxx>
> Signed-off-by: Benny Halevy <bhalevy@xxxxxxxxxx>
> ---
> fs/nfs/nfs4proc.c | 1 +
> fs/nfs/nfs4xdr.c | 1 +
> fs/nfs/pnfs.c | 10 ++++++++++
> fs/nfs/pnfs.h | 5 +++++
> include/linux/nfs_xdr.h | 1 +
> 5 files changed, 18 insertions(+), 0 deletions(-)
>
> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> index e86de79..6cb84b4 100644
> --- a/fs/nfs/nfs4proc.c
> +++ b/fs/nfs/nfs4proc.c
> @@ -5963,6 +5963,7 @@ static void nfs4_layoutcommit_release(void *calldata)
> struct nfs4_layoutcommit_data *data = calldata;
> struct pnfs_layout_segment *lseg, *tmp;
>
> + pnfs_cleanup_layoutcommit(data->args.inode, data);
If inode is part of @data, which is also passed as argument then we can simplify
the API by just passing @data
> /* Matched by references in pnfs_set_layoutcommit */
> list_for_each_entry_safe(lseg, tmp, &data->lseg_list, pls_lc_list) {
> list_del_init(&lseg->pls_lc_list);
> diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
> index 0261669..1dce12f 100644
> --- a/fs/nfs/nfs4xdr.c
> +++ b/fs/nfs/nfs4xdr.c
> @@ -5599,6 +5599,7 @@ static int decode_layoutcommit(struct xdr_stream *xdr,
> int status;
>
> status = decode_op_hdr(xdr, OP_LAYOUTCOMMIT);
> + res->status = status;
> if (status)
> return status;
>
> diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
> index 3a47f7c..c1cc216 100644
> --- a/fs/nfs/pnfs.c
> +++ b/fs/nfs/pnfs.c
> @@ -1411,6 +1411,16 @@ pnfs_set_layoutcommit(struct nfs_write_data *wdata)
> }
> EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit);
>
> +void pnfs_cleanup_layoutcommit(struct inode *inode,
> + struct nfs4_layoutcommit_data *data)
> +{
> + struct nfs_server *nfss = NFS_SERVER(inode);
> +
> + if (nfss->pnfs_curr_ld->cleanup_layoutcommit)
> + nfss->pnfs_curr_ld->cleanup_layoutcommit(NFS_I(inode)->layout,
> + data);
Here too since data has inode then the LD can do the:
NFS_I(data->args.inode)->layout
de-reference, and only pass @data as argument
Boaz
> +}
> +
> /*
> * For the LAYOUT4_NFSV4_1_FILES layout type, NFS_DATA_SYNC WRITEs and
> * NFS_UNSTABLE WRITEs with a COMMIT to data servers must store enough
> diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
> index bddd8b9..f271425 100644
> --- a/fs/nfs/pnfs.h
> +++ b/fs/nfs/pnfs.h
> @@ -113,6 +113,9 @@ struct pnfs_layoutdriver_type {
> struct xdr_stream *xdr,
> const struct nfs4_layoutreturn_args *args);
>
> + void (*cleanup_layoutcommit) (struct pnfs_layout_hdr *layoutid,
> + struct nfs4_layoutcommit_data *data);
> +
> void (*encode_layoutcommit) (struct pnfs_layout_hdr *layoutid,
> struct xdr_stream *xdr,
> const struct nfs4_layoutcommit_args *args);
> @@ -196,6 +199,8 @@ void pnfs_roc_release(struct inode *ino);
> void pnfs_roc_set_barrier(struct inode *ino, u32 barrier);
> bool pnfs_roc_drain(struct inode *ino, u32 *barrier);
> void pnfs_set_layoutcommit(struct nfs_write_data *wdata);
> +void pnfs_cleanup_layoutcommit(struct inode *inode,
> + struct nfs4_layoutcommit_data *data);
> int pnfs_layoutcommit_inode(struct inode *inode, bool sync);
> int _pnfs_return_layout(struct inode *);
> int pnfs_ld_write_done(struct nfs_write_data *);
> diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
> index 94f27e5..569ea5b 100644
> --- a/include/linux/nfs_xdr.h
> +++ b/include/linux/nfs_xdr.h
> @@ -269,6 +269,7 @@ struct nfs4_layoutcommit_res {
> struct nfs_fattr *fattr;
> const struct nfs_server *server;
> struct nfs4_sequence_res seq_res;
> + int status;
> };
>
> struct nfs4_layoutcommit_data {
--
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