vfs: new helper - vfs_ustat()
... and bury user_get_super()/statfs_by_dentry() - they are
purely internal now.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/compat.c b/fs/compat.c
index c987875..9db5a60 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -342,16 +342,9 @@
*/
asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u)
{
- struct super_block *sb;
struct compat_ustat tmp;
struct kstatfs sbuf;
- int err;
-
- sb = user_get_super(new_decode_dev(dev));
- if (!sb)
- return -EINVAL;
- err = statfs_by_dentry(sb->s_root, &sbuf);
- drop_super(sb);
+ int err = vfs_ustat(new_decode_dev(dev), &sbuf);
if (err)
return err;