From mboxrd@z Thu Jan 1 00:00:00 1970 From: Till Maas Subject: [PATCH] kpartx: Properly support read-only files Date: Mon, 10 Jun 2013 18:40:58 +0200 Message-ID: <20130610164058.GF12715@genius.invalid> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: dm-devel@redhat.com List-Id: dm-devel.ids LSBVc2Ugb25seSB2YXJpYWJsZSBsb29wcm8gaW5zdGVhZCBvZiBhZGRpdGlvbmFsbHkgdmFyaWFi bGUgcm86IElmIHRoZQogIGZpbGUgY2FuIG9ubHkgYmUgb3BlbmVkIHJlYWQtb25seSwgaXQgZG9l cyBub3QgbWFrZSBzZW5zZSB0byBjcmVhdGUgYQogIHdyaXRhYmxlIG1hcHBpbmcuCi0gRmFsbCBi YWNrIHRvIHJlYWQtb25seSBtYXBwaW5nIG9uIEVBQ0NFU1MgaW5zdGVhZCBvZiBvbmx5IG9uIEVS T0ZTLAogIHNpbmNlIGltbXV0YWJsZSBmaWxlcyBjYXVzZXMgRUFDQ0VTUy4KLS0tCiBrcGFydHgv a3BhcnR4LmMgfCA4ICsrKystLS0tCiBrcGFydHgvbG9wYXJ0LmMgfCAyICstCiAyIERhdGVpZW4g Z2XDpG5kZXJ0LCA1IFplaWxlbiBoaW56dWdlZsO8Z3QoKyksIDUgWmVpbGVuIGVudGZlcm50KC0p CgpkaWZmIC0tZ2l0IGEva3BhcnR4L2twYXJ0eC5jIGIva3BhcnR4L2twYXJ0eC5jCmluZGV4IDk4 ZDg4YzAuLjgyYzNiYjIgMTAwNjQ0Ci0tLSBhL2twYXJ0eC9rcGFydHguYworKysgYi9rcGFydHgv a3BhcnR4LmMKQEAgLTE5Miw3ICsxOTIsNyBAQCBnZXRfaG90cGx1Z19kZXZpY2Uodm9pZCkKIAog aW50CiBtYWluKGludCBhcmdjLCBjaGFyICoqYXJndil7Ci0JaW50IGksIGosIG0sIG4sIG9wLCBv ZmYsIGFyZywgYywgZCwgcm89MDsKKwlpbnQgaSwgaiwgbSwgbiwgb3AsIG9mZiwgYXJnLCBjLCBk OwogCWludCBmZCA9IC0xOwogCXN0cnVjdCBzbGljZSBhbGw7CiAJc3RydWN0IHB0ICpwdHA7CkBA IC0yNDEsNyArMjQxLDcgQEAgbWFpbihpbnQgYXJnYywgY2hhciAqKmFyZ3YpewogCiAJd2hpbGUg KChhcmcgPSBnZXRvcHQoYXJnYywgYXJndiwgc2hvcnRfb3B0cykpICE9IEVPRikgc3dpdGNoKGFy ZykgewogCQljYXNlICdyJzoKLQkJCXJvPTE7CisJCQlsb29wcm89MTsKIAkJCWJyZWFrOwogCQlj YXNlICdmJzoKIAkJCWZvcmNlX2Rldm1hcD0xOwpAQCAtNDg5LDcgKzQ4OSw3IEBAIG1haW4oaW50 IGFyZ2MsIGNoYXIgKiphcmd2KXsKIAkJCQkJRE1fREVWSUNFX1JFTE9BRCA6IERNX0RFVklDRV9D UkVBVEUpOwogCiAJCQkJaWYgKCFkbV9hZGRtYXAob3AsIHBhcnRuYW1lLCBETV9UQVJHRVQsIHBh cmFtcywKLQkJCQkJICAgICAgIHNsaWNlc1tqXS5zaXplLCBybywgdXVpZCwgaisxLAorCQkJCQkg ICAgICAgc2xpY2VzW2pdLnNpemUsIGxvb3BybywgdXVpZCwgaisxLAogCQkJCQkgICAgICAgYnVm LnN0X21vZGUgJiAwNzc3LCBidWYuc3RfdWlkLAogCQkJCQkgICAgICAgYnVmLnN0X2dpZCwgJmNv b2tpZSkpIHsKIAkJCQkJZnByaW50ZihzdGRlcnIsICJjcmVhdGUvcmVsb2FkIGZhaWxlZCBvbiAl c1xuIiwKQEAgLTU1Miw3ICs1NTIsNyBAQCBtYWluKGludCBhcmdjLCBjaGFyICoqYXJndil7CiAJ CQkJCSAgICAgIERNX0RFVklDRV9SRUxPQUQgOiBETV9ERVZJQ0VfQ1JFQVRFKTsKIAogCQkJCQlk bV9hZGRtYXAob3AsIHBhcnRuYW1lLCBETV9UQVJHRVQsIHBhcmFtcywKLQkJCQkJCSAgc2xpY2Vz W2pdLnNpemUsIHJvLCB1dWlkLCBqKzEsCisJCQkJCQkgIHNsaWNlc1tqXS5zaXplLCBsb29wcm8s IHV1aWQsIGorMSwKIAkJCQkJCSAgYnVmLnN0X21vZGUgJiAwNzc3LAogCQkJCQkJICBidWYuc3Rf dWlkLCBidWYuc3RfZ2lkLAogCQkJCQkJICAmY29va2llKTsKZGlmZiAtLWdpdCBhL2twYXJ0eC9s b3BhcnQuYyBiL2twYXJ0eC9sb3BhcnQuYwppbmRleCA3OWE3NTkzLi45MDgyY2E4IDEwMDY0NAot LS0gYS9rcGFydHgvbG9wYXJ0LmMKKysrIGIva3BhcnR4L2xvcGFydC5jCkBAIC0yMzAsNyArMjMw LDcgQEAgc2V0X2xvb3AgKGNvbnN0IGNoYXIgKmRldmljZSwgY29uc3QgY2hhciAqZmlsZSwgaW50 IG9mZnNldCwgaW50ICpsb29wcm8pCiAKIAlpZiAoKGZmZCA9IG9wZW4gKGZpbGUsIG1vZGUpKSA8 IDApIHsKIAotCQlpZiAoISpsb29wcm8gJiYgZXJybm8gPT0gRVJPRlMpCisJCWlmICghKmxvb3By byAmJiAoZXJybm8gPT0gRVJPRlMgfHwgZXJybm8gPT0gRUFDQ0VTKSkKIAkJCWZmZCA9IG9wZW4g KGZpbGUsIG1vZGUgPSBPX1JET05MWSk7CiAKIAkJaWYgKGZmZCA8IDApIHsKLS0gCjEuNy4xMS43 CgotLQpkbS1kZXZlbCBtYWlsaW5nIGxpc3QKZG0tZGV2ZWxAcmVkaGF0LmNvbQpodHRwczovL3d3 dy5yZWRoYXQuY29tL21haWxtYW4vbGlzdGluZm8vZG0tZGV2ZWw=