vfs: d_alloc_root() gone
all callers converted to d_make_root() by now
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index b4a3d76..74acd96 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -429,3 +429,9 @@
You must also keep in mind that ->fsync() is not called with i_mutex held
anymore, so if you require i_mutex locking you must make sure to take it and
release it yourself.
+
+--
+[mandatory]
+ d_alloc_root() is gone, along with a lot of bugs caused by code
+misusing it. Replacement: d_make_root(inode). The difference is,
+d_make_root() drops the reference to inode if dentry allocation fails.
diff --git a/fs/dcache.c b/fs/dcache.c
index bcbdb33..a78e145 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1443,30 +1443,6 @@
EXPORT_SYMBOL(d_instantiate_unique);
-/**
- * d_alloc_root - allocate root dentry
- * @root_inode: inode to allocate the root for
- *
- * Allocate a root ("/") dentry for the inode given. The inode is
- * instantiated and returned. %NULL is returned if there is insufficient
- * memory or the inode passed is %NULL.
- */
-
-struct dentry * d_alloc_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);
- }
- return res;
-}
-EXPORT_SYMBOL(d_alloc_root);
-
struct dentry *d_make_root(struct inode *root_inode)
{
struct dentry *res = NULL;
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index ff5f525..7e11f14 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -222,7 +222,6 @@
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 */