---

yaml --- r: 281987 b: refs/heads/master c: adc0e91 h: refs/heads/master i: 281985: 65e64c8 281983: 1d8411c v: v3
git-mirror · Jan 10, 2012 · 2151d47 · 2151d47
1 parent a7ec93c
commit 2151d47
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Showing 3 changed files with 19 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b48f03b319ba78f3abf9a7044d1f436d8d90f4f9
+refs/heads/master: adc0e91ab142abe93f5b0d7980ada8a7676231fe
diff --git a/trunk/fs/dcache.c b/trunk/fs/dcache.c
@@ -1440,6 +1440,23 @@ struct dentry * d_alloc_root(struct inode * root_inode)
 }
 EXPORT_SYMBOL(d_alloc_root);
 
+struct dentry *d_make_root(struct inode *root_inode)
+{
+	struct dentry *res = NULL;
+
+	if (root_inode) {
+		static const struct qstr name = { .name = "/", .len = 1 };
+
+		res = __d_alloc(root_inode->i_sb, &name);
+		if (res)
+			d_instantiate(res, root_inode);
+		else
+			iput(root_inode);
+	}
+	return res;
+}
+EXPORT_SYMBOL(d_make_root);
+
 static struct dentry * __d_find_any_alias(struct inode *inode)
 {
 	struct dentry *alias;

diff --git a/trunk/include/linux/dcache.h b/trunk/include/linux/dcache.h
@@ -249,6 +249,7 @@ extern int d_invalidate(struct dentry *);
 
 /* only used at mount-time */
 extern struct dentry * d_alloc_root(struct inode *);
+extern struct dentry * d_make_root(struct inode *);
 
 /* <clickety>-<click> the ramfs-type tree */
 extern void d_genocide(struct dentry *);