bcachefs: Delete redundant fsck_err()

'inode_has_wrong_backpointer'; we have more specific errors for every
case afterwards.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

Author: Kent Overstreet

fs/bcachefs/inode.h

@@ -283,15 +283,6 @@ static inline void bch2_inode_nlink_set(struct bch_inode_unpacked *bi,
 int bch2_inode_nlink_inc(struct bch_inode_unpacked *);
 void bch2_inode_nlink_dec(struct btree_trans *, struct bch_inode_unpacked *);
 
-static inline bool bch2_inode_should_have_single_bp(struct bch_inode_unpacked *inode)
-{
-	bool inode_has_bp = inode->bi_dir || inode->bi_dir_offset;
-
-	return S_ISDIR(inode->bi_mode) ||
-		inode->bi_subvol ||
-		(!inode->bi_nlink && inode_has_bp);
-}
-
 struct bch_opts bch2_inode_opts_to_opts(struct bch_inode_unpacked *);
 void bch2_inode_opts_get(struct bch_io_opts *, struct bch_fs *,
 			 struct bch_inode_unpacked *);

fs/bcachefs/namei.c

@@ -733,15 +733,6 @@ static int bch2_check_dirent_inode_dirent(struct btree_trans *trans,
 		return __bch2_fsck_write_inode(trans, target);
 	}
 
-	if (bch2_inode_should_have_single_bp(target) &&
-	    !fsck_err(trans, inode_wrong_backpointer,
-		      "dirent points to inode that does not point back:\n%s",
-		      (bch2_bkey_val_to_text(&buf, c, d.s_c),
-		       prt_newline(&buf),
-		       bch2_inode_unpacked_to_text(&buf, target),
-		       buf.buf)))
-		goto err;
-
 	struct bkey_s_c_dirent bp_dirent =
 		bch2_bkey_get_iter_typed(trans, &bp_iter, BTREE_ID_dirents,
 			      SPOS(target->bi_dir, target->bi_dir_offset, target->bi_snapshot),