Always lookup priv_root on reiserfs mount and keep it

... even if it's a negative dentry.  That way we can set ->d_op on
root before anyone could race with us.  Simplify d_compare(), while
we are at it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 4 insertions, 2 deletions

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 0ae6486d9046..d444fe0013a4 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1842,7 +1842,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
                         goto error;
                 }
 
-                if ((errval = reiserfs_xattr_init(s, s->s_flags))) {
+                if ((errval = reiserfs_lookup_privroot(s)) ||
+                    (errval = reiserfs_xattr_init(s, s->s_flags))) {
                         dput(s->s_root);
                         s->s_root = NULL;
                         goto error;
@@ -1855,7 +1856,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
                         reiserfs_info(s, "using 3.5.x disk format\n");
                 }
 
-                if ((errval = reiserfs_xattr_init(s, s->s_flags))) {
+                if ((errval = reiserfs_lookup_privroot(s)) ||
+                    (errval = reiserfs_xattr_init(s, s->s_flags))) {
                         dput(s->s_root);
                         s->s_root = NULL;
                         goto error;