patch-2.2.6 linux/fs/sysv/namei.c

• Lines: 70
• Date: Mon Apr 12 10:03:45 1999
• Orig file: v2.2.5/linux/fs/sysv/namei.c
• Orig date: Tue Mar 23 14:35:48 1999

diff -u --recursive --new-file v2.2.5/linux/fs/sysv/namei.c linux/fs/sysv/namei.c
@@ -594,8 +594,8 @@
  * Anybody can rename anything with this: the permission checks are left to the
  * higher-level routines.
  */
-static int do_sysv_rename(struct inode * old_dir, struct dentry * old_dentry,
-			  struct inode * new_dir, struct dentry * new_dentry)
+int sysv_rename(struct inode * old_dir, struct dentry * old_dentry,
+		  struct inode * new_dir, struct dentry * new_dentry)
 {
 	struct inode * old_inode, * new_inode;
 	struct buffer_head * old_bh, * new_bh, * dir_bh;
@@ -628,20 +628,8 @@
 			new_bh = NULL;
 		}
 	}
-	if (new_inode == old_inode) {
-		retval = 0;
-		goto end_rename;
-	}
 	if (S_ISDIR(old_inode->i_mode)) {
-		retval = -EINVAL;
-		if (is_subdir(new_dentry, old_dentry))
-			goto end_rename;
 		if (new_inode) {
-			if (new_dentry->d_count > 1)
-				shrink_dcache_parent(new_dentry);
-			retval = -EBUSY;
-			if (new_dentry->d_count > 1)
-				goto end_rename;
 			retval = -ENOTEMPTY;
 			if (!empty_dir(new_inode))
 				goto end_rename;
@@ -696,37 +684,10 @@
 			mark_inode_dirty(new_dir);
 		}
 	}
-	d_move(old_dentry, new_dentry);
 	retval = 0;
 end_rename:
 	brelse(dir_bh);
 	brelse(old_bh);
 	brelse(new_bh);
 	return retval;
-}
-
-/*
- * Ok, rename also locks out other renames, as they can change the parent of
- * a directory, and we don't want any races. Other races are checked for by
- * "do_rename()", which restarts if there are inconsistencies.
- *
- * Note that there is no race between different filesystems: it's only within
- * the same device that races occur: many renames can happen at once, as long
- * as they are on different partitions.
- */
-int sysv_rename(struct inode * old_dir, struct dentry * old_dentry,
-		struct inode * new_dir, struct dentry * new_dentry)
-{
-	static struct wait_queue * wait = NULL;
-	static int lock = 0;
-	int result;
-
-	while (lock)
-		sleep_on(&wait);
-	lock = 1;
-	result = do_sysv_rename(old_dir, old_dentry,
-				new_dir, new_dentry);
-	lock = 0;
-	wake_up(&wait);
-	return result;
 }