NFSv4: Cleanups for fs_locations code.

[safe/jmp/linux-2.6] / fs / nfs / internal.h

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index e73ba4f..6610f2b 100644 (file)
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -47,6 +47,18 @@ extern void nfs_free_server(struct nfs_server *server);
 extern struct nfs_server *nfs_clone_server(struct nfs_server *,
                                           struct nfs_fh *,
                                           struct nfs_fattr *);
+#ifdef CONFIG_PROC_FS
+extern int __init nfs_fs_proc_init(void);
+extern void nfs_fs_proc_exit(void);
+#else
+static inline int nfs_fs_proc_init(void)
+{
+       return 0;
+}
+static inline void nfs_fs_proc_exit(void)
+{
+}
+#endif
 
 /* nfs4namespace.c */
 #ifdef CONFIG_NFS_V4
@@ -81,24 +93,20 @@ extern void nfs_destroy_directcache(void);
 /* nfs2xdr.c */
 extern int nfs_stat_to_errno(int);
 extern struct rpc_procinfo nfs_procedures[];
-extern u32 * nfs_decode_dirent(u32 *, struct nfs_entry *, int);
+extern __be32 * nfs_decode_dirent(__be32 *, struct nfs_entry *, int);
 
 /* nfs3xdr.c */
 extern struct rpc_procinfo nfs3_procedures[];
-extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int);
+extern __be32 *nfs3_decode_dirent(__be32 *, struct nfs_entry *, int);
 
 /* nfs4xdr.c */
 #ifdef CONFIG_NFS_V4
-extern u32 *nfs4_decode_dirent(u32 *p, struct nfs_entry *entry, int plus);
+extern __be32 *nfs4_decode_dirent(__be32 *p, struct nfs_entry *entry, int plus);
 #endif
 
 /* nfs4proc.c */
 #ifdef CONFIG_NFS_V4
 extern struct rpc_procinfo nfs4_procedures[];
-
-extern int nfs4_proc_fs_locations(struct inode *dir, struct dentry *dentry,
-                                 struct nfs4_fs_locations *fs_locations,
-                                 struct page *page);
 #endif
 
 /* dir.c */
@@ -205,3 +213,21 @@ void nfs_super_set_maxbytes(struct super_block *sb, __u64 maxfilesize)
        if (sb->s_maxbytes > MAX_LFS_FILESIZE || sb->s_maxbytes <= 0)
                sb->s_maxbytes = MAX_LFS_FILESIZE;
 }
+
+/*
+ * Determine the number of bytes of data the page contains
+ */
+static inline
+unsigned int nfs_page_length(struct page *page)
+{
+       loff_t i_size = i_size_read(page->mapping->host);
+
+       if (i_size > 0) {
+               pgoff_t end_index = (i_size - 1) >> PAGE_CACHE_SHIFT;
+               if (page->index < end_index)
+                       return PAGE_CACHE_SIZE;
+               if (page->index == end_index)
+                       return ((i_size - 1) & ~PAGE_CACHE_MASK) + 1;
+       }
+       return 0;
+}