From: Amir Goldor Subject: Re: Errors reported by Coverity in ext3 Date: Sun, 12 Apr 2009 14:58:05 +0300 Message-ID: <18730dc50904120458m1649aaf7tab395436d159105a@mail.gmail.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary=001636c5a4af8075c904675a4f1d Cc: Andrew Morton , linux-ext4@vger.kernel.org To: Andreas Dilger Return-path: Received: from mail-fx0-f158.google.com ([209.85.220.158]:33745 "EHLO mail-fx0-f158.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758620AbZDLL6H (ORCPT ); Sun, 12 Apr 2009 07:58:07 -0400 Received: by fxm2 with SMTP id 2so1677870fxm.37 for ; Sun, 12 Apr 2009 04:58:05 -0700 (PDT) Sender: linux-ext4-owner@vger.kernel.org List-ID: --001636c5a4af8075c904675a4f1d Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hi Andreas, in reply to your message from 2006 (http://marc.info/?l=linux-ext4&m=116310729115980&w=2) I have prepared a small patch to check jbd errors on 4 occurrences in namei.c could you please review my patch please CC me personally in your reply Thanks, Amir. --001636c5a4af8075c904675a4f1d Content-Type: application/octet-stream; name="ext3-namei-check-jbd-errors-2.6.28.patch" Content-Disposition: attachment; filename="ext3-namei-check-jbd-errors-2.6.28.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_ftfn50yz0 ZGlmZiAtYXVyIGxpbnV4LTIuNi4yOC5vcmlnL2ZzL2V4dDMvbmFtZWkuYyBsaW51eC0yLjYuMjgv ZnMvZXh0My9uYW1laS5jCi0tLSBsaW51eC0yLjYuMjgub3JpZy9mcy9leHQzL25hbWVpLmMJMjAw OS0wNC0xMiAxMTo1ODo0MS4wMDAwMDAwMDAgKzAzMDAKKysrIGxpbnV4LTIuNi4yOC9mcy9leHQz L25hbWVpLmMJMjAwOS0wNC0xMiAxNDoxNTo1NS4wMDAwMDAwMDAgKzAzMDAKQEAgLTE2MTYsNyAr MTYxNiw3IEBACiAJCQkgICAgICBzdHJ1Y3QgYnVmZmVyX2hlYWQgKiBiaCkKIHsKIAlzdHJ1Y3Qg ZXh0M19kaXJfZW50cnlfMiAqIGRlLCAqIHBkZTsKLQlpbnQgaTsKKwlpbnQgaSwgZXJyOwogCiAJ aSA9IDA7CiAJcGRlID0gTlVMTDsKQEAgLTE2MjYsNyArMTYyNiw5IEBACiAJCQlyZXR1cm4gLUVJ TzsKIAkJaWYgKGRlID09IGRlX2RlbCkgIHsKIAkJCUJVRkZFUl9UUkFDRShiaCwgImdldF93cml0 ZV9hY2Nlc3MiKTsKLQkJCWV4dDNfam91cm5hbF9nZXRfd3JpdGVfYWNjZXNzKGhhbmRsZSwgYmgp OworCQkJZXJyID0gZXh0M19qb3VybmFsX2dldF93cml0ZV9hY2Nlc3MoaGFuZGxlLCBiaCk7CisJ CQlpZiAoZXJyKQorCQkJCXJldHVybiBlcnI7CiAJCQlpZiAocGRlKQogCQkJCXBkZS0+cmVjX2xl biA9IGV4dDNfcmVjX2xlbl90b19kaXNrKAogCQkJCQlleHQzX3JlY19sZW5fZnJvbV9kaXNrKHBk ZS0+cmVjX2xlbikgKwpAQCAtMTc3MCw3ICsxNzcyLDEzIEBACiAJCWdvdG8gb3V0X3N0b3A7CiAJ fQogCUJVRkZFUl9UUkFDRShkaXJfYmxvY2ssICJnZXRfd3JpdGVfYWNjZXNzIik7Ci0JZXh0M19q b3VybmFsX2dldF93cml0ZV9hY2Nlc3MoaGFuZGxlLCBkaXJfYmxvY2spOworCWVyciA9IGV4dDNf am91cm5hbF9nZXRfd3JpdGVfYWNjZXNzKGhhbmRsZSwgZGlyX2Jsb2NrKTsKKwlpZiAoZXJyKSB7 CisJCWRyb3BfbmxpbmsoaW5vZGUpOyAvKiBpcyB0aGlzIG5saW5rID09IDA/ICovCisJCWV4dDNf bWFya19pbm9kZV9kaXJ0eShoYW5kbGUsIGlub2RlKTsKKwkJaXB1dCAoaW5vZGUpOworCQlnb3Rv IG91dF9zdG9wOworCX0KIAlkZSA9IChzdHJ1Y3QgZXh0M19kaXJfZW50cnlfMiAqKSBkaXJfYmxv Y2stPmJfZGF0YTsKIAlkZS0+aW5vZGUgPSBjcHVfdG9fbGUzMihpbm9kZS0+aV9pbm8pOwogCWRl LT5uYW1lX2xlbiA9IDE7CkBAIC0yMzAyLDcgKzIzMTAsOSBAQAogCQkJZ290byBlbmRfcmVuYW1l OwogCX0gZWxzZSB7CiAJCUJVRkZFUl9UUkFDRShuZXdfYmgsICJnZXQgd3JpdGUgYWNjZXNzIik7 Ci0JCWV4dDNfam91cm5hbF9nZXRfd3JpdGVfYWNjZXNzKGhhbmRsZSwgbmV3X2JoKTsKKwkJcmV0 dmFsID0gZXh0M19qb3VybmFsX2dldF93cml0ZV9hY2Nlc3MoaGFuZGxlLCBuZXdfYmgpOworCQlp ZiAocmV0dmFsKQorCQkJZ290byBlbmRfcmVuYW1lOwogCQluZXdfZGUtPmlub2RlID0gY3B1X3Rv X2xlMzIob2xkX2lub2RlLT5pX2lubyk7CiAJCWlmIChFWFQzX0hBU19JTkNPTVBBVF9GRUFUVVJF KG5ld19kaXItPmlfc2IsCiAJCQkJCSAgICAgIEVYVDNfRkVBVFVSRV9JTkNPTVBBVF9GSUxFVFlQ RSkpCkBAIC0yMzYwLDcgKzIzNzAsMTQgQEAKIAlleHQzX3VwZGF0ZV9keF9mbGFnKG9sZF9kaXIp OwogCWlmIChkaXJfYmgpIHsKIAkJQlVGRkVSX1RSQUNFKGRpcl9iaCwgImdldF93cml0ZV9hY2Nl c3MiKTsKLQkJZXh0M19qb3VybmFsX2dldF93cml0ZV9hY2Nlc3MoaGFuZGxlLCBkaXJfYmgpOwor CQlyZXR2YWwgPSBleHQzX2pvdXJuYWxfZ2V0X3dyaXRlX2FjY2VzcyhoYW5kbGUsIGRpcl9iaCk7 CisJCWlmIChyZXR2YWwpIHsKKwkJCWV4dDNfd2FybmluZyhvbGRfZGlyLT5pX3NiLCAiZXh0M19y ZW5hbWUiLAorCQkJCQkiVXBkYXRpbmcgbmV3IGRpcmVjdG9yeSAoJWx1KSBwYXJlbnQgbGluaywg JWQsIGVycm9yPSVkIiwKKwkJCQkJbmV3X2Rpci0+aV9pbm8sIG5ld19kaXItPmlfbmxpbmssIHJl dHZhbCk7CisJCX0KKwl9CisJaWYgKGRpcl9iaCAmJiAhcmV0dmFsKSB7CiAJCVBBUkVOVF9JTk8o ZGlyX2JoLT5iX2RhdGEpID0gY3B1X3RvX2xlMzIobmV3X2Rpci0+aV9pbm8pOwogCQlCVUZGRVJf VFJBQ0UoZGlyX2JoLCAiY2FsbCBleHQzX2pvdXJuYWxfZGlydHlfbWV0YWRhdGEiKTsKIAkJZXh0 M19qb3VybmFsX2RpcnR5X21ldGFkYXRhKGhhbmRsZSwgZGlyX2JoKTsK --001636c5a4af8075c904675a4f1d--