1 files changed, 3 insertions, 0 deletions

diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 1e6308f82fc3..0a4723945db2 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -178,6 +178,8 @@ struct pnfs_layoutdriver_type {
         void (*encode_layoutcommit) (struct pnfs_layout_hdr *lo,
                                      struct xdr_stream *xdr,
                                      const struct nfs4_layoutcommit_args *args);
+        int (*prepare_layoutstats) (struct nfs42_layoutstat_args *args);
+        void (*cleanup_layoutstats) (struct nfs42_layoutstat_data *data);
 };
 
 struct pnfs_layout_hdr {
@@ -290,6 +292,7 @@ int pnfs_write_done_resend_to_mds(struct nfs_pgio_header *);
 struct nfs4_threshold *pnfs_mdsthreshold_alloc(void);
 void pnfs_error_mark_layout_for_return(struct inode *inode,
                                        struct pnfs_layout_segment *lseg);
+int pnfs_report_layoutstat(struct inode *inode);
 
 /* nfs4_deviceid_flags */
 enum {