kill dentry_unhash()
the last user is gone
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/namei.c b/fs/namei.c
index dbb8ec1..794f81d 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3685,31 +3685,6 @@
return sys_mkdirat(AT_FDCWD, pathname, mode);
}
-/*
- * The dentry_unhash() helper will try to drop the dentry early: we
- * should have a usage count of 1 if we're the only user of this
- * dentry, and if that is true (possibly after pruning the dcache),
- * then we drop the dentry now.
- *
- * A low-level filesystem can, if it choses, legally
- * do a
- *
- * if (!d_unhashed(dentry))
- * return -EBUSY;
- *
- * if it cannot handle the case of removing a directory
- * that is still in use by something else..
- */
-void dentry_unhash(struct dentry *dentry)
-{
- shrink_dcache_parent(dentry);
- spin_lock(&dentry->d_lock);
- if (dentry->d_lockref.count == 1)
- __d_drop(dentry);
- spin_unlock(&dentry->d_lock);
-}
-EXPORT_SYMBOL(dentry_unhash);
-
int vfs_rmdir(struct inode *dir, struct dentry *dentry)
{
int error = may_delete(dir, dentry, 1);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index ae68100..c577923c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1540,11 +1540,6 @@
extern int vfs_whiteout(struct inode *, struct dentry *);
/*
- * VFS dentry helper functions.
- */
-extern void dentry_unhash(struct dentry *dentry);
-
-/*
* VFS file helper functions.
*/
extern void inode_init_owner(struct inode *inode, const struct inode *dir,