1 files changed, 50 insertions, 0 deletions

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index da7a1300dc60..ba6cc8f223c9 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -114,6 +114,7 @@ struct nfs_fsinfo {
         __u64                   maxfilesize;
         struct timespec         time_delta; /* server time granularity */
         __u32                   lease_time; /* in seconds */
+        __u32                   layouttype; /* supported pnfs layout driver */
 };
 
 struct nfs_fsstat {
@@ -186,6 +187,55 @@ struct nfs4_get_lease_time_res {
         struct nfs4_sequence_res        lr_seq_res;
 };
 
+#define PNFS_LAYOUT_MAXSIZE 4096
+
+struct nfs4_layoutdriver_data {
+        __u32 len;
+        void *buf;
+};
+
+struct pnfs_layout_range {
+        u32 iomode;
+        u64 offset;
+        u64 length;
+};
+
+struct nfs4_layoutget_args {
+        __u32 type;
+        struct pnfs_layout_range range;
+        __u64 minlength;
+        __u32 maxcount;
+        struct inode *inode;
+        struct nfs_open_context *ctx;
+        struct nfs4_sequence_args seq_args;
+};
+
+struct nfs4_layoutget_res {
+        __u32 return_on_close;
+        struct pnfs_layout_range range;
+        __u32 type;
+        nfs4_stateid stateid;
+        struct nfs4_layoutdriver_data layout;
+        struct nfs4_sequence_res seq_res;
+};
+
+struct nfs4_layoutget {
+        struct nfs4_layoutget_args args;
+        struct nfs4_layoutget_res res;
+        struct pnfs_layout_segment **lsegpp;
+        int status;
+};
+
+struct nfs4_getdeviceinfo_args {
+        struct pnfs_device *pdev;
+        struct nfs4_sequence_args seq_args;
+};
+
+struct nfs4_getdeviceinfo_res {
+        struct pnfs_device *pdev;
+        struct nfs4_sequence_res seq_res;
+};
+
 /*
  * Arguments to the open call.
  */