patch-2.4.17 linux/fs/reiserfs/dir.c

• Lines: 105
• Date: Fri Dec 21 16:40:33 2001
• Orig file: linux-2.4.16/fs/reiserfs/dir.c
• Orig date: Tue Oct 30 23:11:34 2001

diff -Naur -X /home/marcelo/lib/dontdiff linux-2.4.16/fs/reiserfs/dir.c linux/fs/reiserfs/dir.c
@@ -22,22 +22,6 @@
     fsync:	reiserfs_dir_fsync,
 };
 
-/*
- * directories can handle most operations...
- */
-struct inode_operations reiserfs_dir_inode_operations = {
-  //&reiserfs_dir_operations,	/* default_file_ops */
-    create:	reiserfs_create,
-    lookup:	reiserfs_lookup,
-    link:	reiserfs_link,
-    unlink:	reiserfs_unlink,
-    symlink:	reiserfs_symlink,
-    mkdir:	reiserfs_mkdir,
-    rmdir:	reiserfs_rmdir,
-    mknod:	reiserfs_mknod,
-    rename:	reiserfs_rename,
-};
-
 int reiserfs_dir_fsync(struct file *filp, struct dentry *dentry, int datasync) {
   lock_kernel();
   reiserfs_commit_for_inode(dentry->d_inode) ;
@@ -186,7 +170,7 @@
 	}
 	
 	/* directory continues in the right neighboring block */
-	set_cpu_key_k_offset (&pos_key, le_key_k_offset (ITEM_VERSION_1, rkey));
+	set_cpu_key_k_offset (&pos_key, le_key_k_offset (KEY_FORMAT_3_5, rkey));
 
     } /* while */
 
@@ -197,4 +181,72 @@
     pathrelse (&path_to_entry);
     reiserfs_check_path(&path_to_entry) ;
     return 0;
+}
+
+/* compose directory item containing "." and ".." entries (entries are
+   not aligned to 4 byte boundary) */
+/* the last four params are LE */
+void make_empty_dir_item_v1 (char * body, __u32 dirid, __u32 objid,
+			     __u32 par_dirid, __u32 par_objid)
+{
+    struct reiserfs_de_head * deh;
+
+    memset (body, 0, EMPTY_DIR_SIZE_V1);
+    deh = (struct reiserfs_de_head *)body;
+    
+    /* direntry header of "." */
+    put_deh_offset( &(deh[0]), DOT_OFFSET );
+    /* these two are from make_le_item_head, and are are LE */
+    deh[0].deh_dir_id = dirid;
+    deh[0].deh_objectid = objid;
+    deh[0].deh_state = 0; /* Endian safe if 0 */
+    put_deh_location( &(deh[0]), EMPTY_DIR_SIZE_V1 - strlen( "." ));
+    mark_de_visible(&(deh[0]));
+  
+    /* direntry header of ".." */
+    put_deh_offset( &(deh[1]), DOT_DOT_OFFSET);
+    /* key of ".." for the root directory */
+    /* these two are from the inode, and are are LE */
+    deh[1].deh_dir_id = par_dirid;
+    deh[1].deh_objectid = par_objid;
+    deh[1].deh_state = 0; /* Endian safe if 0 */
+    put_deh_location( &(deh[1]), deh_location( &(deh[0]) ) - strlen( ".." ) );
+    mark_de_visible(&(deh[1]));
+
+    /* copy ".." and "." */
+    memcpy (body + deh_location( &(deh[0]) ), ".", 1);
+    memcpy (body + deh_location( &(deh[1]) ), "..", 2);
+}
+
+/* compose directory item containing "." and ".." entries */
+void make_empty_dir_item (char * body, __u32 dirid, __u32 objid,
+			  __u32 par_dirid, __u32 par_objid)
+{
+    struct reiserfs_de_head * deh;
+
+    memset (body, 0, EMPTY_DIR_SIZE);
+    deh = (struct reiserfs_de_head *)body;
+    
+    /* direntry header of "." */
+    put_deh_offset( &(deh[0]), DOT_OFFSET );
+    /* these two are from make_le_item_head, and are are LE */
+    deh[0].deh_dir_id = dirid;
+    deh[0].deh_objectid = objid;
+    deh[0].deh_state = 0; /* Endian safe if 0 */
+    put_deh_location( &(deh[0]), EMPTY_DIR_SIZE - ROUND_UP( strlen( "." ) ) );
+    mark_de_visible(&(deh[0]));
+  
+    /* direntry header of ".." */
+    put_deh_offset( &(deh[1]), DOT_DOT_OFFSET );
+    /* key of ".." for the root directory */
+    /* these two are from the inode, and are are LE */
+    deh[1].deh_dir_id = par_dirid;
+    deh[1].deh_objectid = par_objid;
+    deh[1].deh_state = 0; /* Endian safe if 0 */
+    put_deh_location( &(deh[1]), deh_location( &(deh[0])) - ROUND_UP( strlen( ".." ) ) );
+    mark_de_visible(&(deh[1]));
+
+    /* copy ".." and "." */
+    memcpy (body + deh_location( &(deh[0]) ), ".", 1);
+    memcpy (body + deh_location( &(deh[1]) ), "..", 2);
 }