1 files changed, 50 insertions, 11 deletions

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 7fafc4c546b7..7c7320fa51aa 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -14,11 +14,19 @@
 #define NFS_DEF_FILE_IO_SIZE    (4096U)
 #define NFS_MIN_FILE_IO_SIZE    (1024U)
 
-struct nfs4_fsid {
-        __u64 major;
-        __u64 minor;
+struct nfs_fsid {
+        uint64_t                major;
+        uint64_t                minor;
 };
 
+/*
+ * Helper for checking equality between 2 fsids.
+ */
+static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
+{
+        return a->major == b->major && a->minor == b->minor;
+}
+
 struct nfs_fattr {
         unsigned short          valid;          /* which fields are valid */
         __u64                   pre_size;       /* pre_op_attr.size       */
@@ -40,10 +48,7 @@ struct nfs_fattr {
                 } nfs3;
         } du;
         dev_t                   rdev;
-        union {
-                __u64           nfs3;           /* also nfs2 */
-                struct nfs4_fsid nfs4;
-        } fsid_u;
+        struct nfs_fsid         fsid;
         __u64                   fileid;
         struct timespec         atime;
         struct timespec         mtime;
@@ -57,8 +62,8 @@ struct nfs_fattr {
 #define NFS_ATTR_WCC            0x0001          /* pre-op WCC data    */
 #define NFS_ATTR_FATTR          0x0002          /* post-op attributes */
 #define NFS_ATTR_FATTR_V3       0x0004          /* NFSv3 attributes */
-#define NFS_ATTR_FATTR_V4       0x0008
-#define NFS_ATTR_PRE_CHANGE     0x0010
+#define NFS_ATTR_FATTR_V4       0x0008          /* NFSv4 change attribute */
+#define NFS_ATTR_FATTR_V4_REFERRAL      0x0010          /* NFSv4 referral */
 
 /*
  * Info on the file system
@@ -675,6 +680,40 @@ struct nfs4_server_caps_res {
         u32                             has_symlinks;
 };
 
+struct nfs4_string {
+        unsigned int len;
+        char *data;
+};
+
+#define NFS4_PATHNAME_MAXCOMPONENTS 512
+struct nfs4_pathname {
+        unsigned int ncomponents;
+        struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
+};
+
+#define NFS4_FS_LOCATION_MAXSERVERS 10
+struct nfs4_fs_location {
+        unsigned int nservers;
+        struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
+        struct nfs4_pathname rootpath;
+};
+
+#define NFS4_FS_LOCATIONS_MAXENTRIES 10
+struct nfs4_fs_locations {
+        struct nfs_fattr fattr;
+        const struct nfs_server *server;
+        struct nfs4_pathname fs_path;
+        int nlocations;
+        struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
+};
+
+struct nfs4_fs_locations_arg {
+        const struct nfs_fh *dir_fh;
+        const struct qstr *name;
+        struct page *page;
+        const u32 *bitmask;
+};
+
 #endif /* CONFIG_NFS_V4 */
 
 struct nfs_page;
@@ -695,7 +734,7 @@ struct nfs_read_data {
 #ifdef CONFIG_NFS_V4
         unsigned long           timestamp;      /* For lease renewal */
 #endif
-        struct page             *page_array[NFS_PAGEVEC_SIZE + 1];
+        struct page             *page_array[NFS_PAGEVEC_SIZE];
 };
 
 struct nfs_write_data {
@@ -713,7 +752,7 @@ struct nfs_write_data {
 #ifdef CONFIG_NFS_V4
         unsigned long           timestamp;      /* For lease renewal */
 #endif
-        struct page             *page_array[NFS_PAGEVEC_SIZE + 1];
+        struct page             *page_array[NFS_PAGEVEC_SIZE];
 };
 
 struct nfs_access_entry;