From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Wilck Subject: Re: [PATCH] kpartx: Improve finding loopback device by file Date: Mon, 05 Feb 2018 11:32:13 +0100 Message-ID: <1517826733.14196.3.camel@suse.com> References: <20180205085831.23923-1-julian.klode@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20180205085831.23923-1-julian.klode@canonical.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Julian Andres Klode , Christophe Varoqui , Device-mapper development mailing list List-Id: dm-devel.ids T24gTW9uLCAyMDE4LTAyLTA1IGF0IDA5OjU4ICswMTAwLCBKdWxpYW4gQW5kcmVzIEtsb2RlIHdy b3RlOgo+IENvbW1pdCA5YmRmYTNlYjhlMjRiNjY4ZTZjMmJiODgyY2RkYjBjY2ZlMjNlZDViIGNo YW5nZWQga3BhcnR4Cj4gdG8gbG9va3VwIGZpbGVzIGJ5IGFic29sdXRlIHBhdGgsIHVzaW5nIHJl YWxwYXRoKCkuIFRoaXMgaW50cm9kdWNlZAo+IGEgcmVncmVzc2lvbiB3aGVuIHBhcnQgb2YgdGhl IGZpbGVuYW1lIHdoZXJlIHN5bWJvbGljIGxpbmtzLiBXaGlsZQo+IHRoZSBrZXJuZWwgc3RvcmVz IHRoZSBhYnNvbHV0ZSBwYXRoIHRvIHRoZSBiYWNraW5nIGZpbGUsIGl0IGRvZXMgbm90Cj4gcmVz b2x2ZSBzeW1ib2xpYyBsaW5rcywgYW5kIGhlbmNlIGtwYXJ0eCB3b3VsZCBmYWlsIHRvIGZpbmQg dGhlCj4gbG9vcGJhY2sKPiBkZXZpY2UgYmVjYXVzZSBpdCByZXNvbHZlcyBzeW1ib2xpYyBsaW5r cyB3aGVuIGRlbGV0aW5nLgo+IAo+IFRoaXMgaW50cm9kdWNlcyB0d28gd29ya2Fyb3VuZHMgaW4g ZmluZF9sb29wX2J5X2ZpbGUoKQo+IAo+ICgxKSBXZSBtYXRjaCBhZ2FpbnN0IHRoZSBzcGVjaWZp ZWQgZmlsZSBuYW1lIGFzIGlzIGFzIHdlbGwKPiAoMikgV2UgY2Fub25pY2FsaXplIHRoZSBsb29w aW5mby5sb19uYW1lIGFuZCBtYXRjaCB0aGUgY2Fub25pY2FsaXplZAo+IGZpbGVuYW1lCj4gICAg IGFnYWluc3QgdGhhdC4KPiAKPiBCdWctVWJ1bnR1OiBodHRwczovL2J1Z3MubGF1bmNocGFkLm5l dC91YnVudHUvK3NvdXJjZS9tdWx0aXBhdGgtdG9vbHMKPiAvK2J1Zy8xNzQ3MDQ0Cj4gU2lnbmVk LW9mZi1ieTogSnVsaWFuIEFuZHJlcyBLbG9kZSA8anVsaWFuLmtsb2RlQGNhbm9uaWNhbC5jb20+ Cj4gLS0tCj4gIGtwYXJ0eC9rcGFydHguYyB8ICA4ICstLS0tLS0tCj4gIGtwYXJ0eC9sb3BhcnQu YyB8IDEyICsrKysrKysrKysrLQo+ICAyIGZpbGVzIGNoYW5nZWQsIDEyIGluc2VydGlvbnMoKyks IDggZGVsZXRpb25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL2twYXJ0eC9rcGFydHguYyBiL2twYXJ0 eC9rcGFydHguYwo+IGluZGV4IDQ0MmI2YmQ5Li5jMWFmMWM1ZSAxMDA2NDQKPiAtLS0gYS9rcGFy dHgva3BhcnR4LmMKPiArKysgYi9rcGFydHgva3BhcnR4LmMKPiBAQCAtMzI3LDEzICszMjcsNyBA QCBtYWluKGludCBhcmdjLCBjaGFyICoqYXJndil7Cj4gIAo+ICAJaWYgKFNfSVNSRUcgKGJ1Zi5z dF9tb2RlKSkgewo+ICAJCS8qIGFscmVhZHkgbG9vcGVkIGZpbGUgPyAqLwo+IC0JCWNoYXIgcnBh dGhbUEFUSF9NQVhdOwo+IC0JCWlmIChyZWFscGF0aChkZXZpY2UsIHJwYXRoKSA9PSBOVUxMKSB7 Cj4gLQkJCWZwcmludGYoc3RkZXJyLCAiRXJyb3I6ICVzOiAlc1xuIiwgZGV2aWNlLAo+IC0JCQkJ c3RyZXJyb3IoZXJybm8pKTsKPiAtCQkJZXhpdCAoMSk7Cj4gLQkJfQo+IC0JCWxvb3BkZXYgPSBm aW5kX2xvb3BfYnlfZmlsZShycGF0aCk7Cj4gKwkJbG9vcGRldiA9IGZpbmRfbG9vcF9ieV9maWxl KGRldmljZSk7Cj4gIAo+ICAJCWlmICghbG9vcGRldiAmJiB3aGF0ID09IERFTEVURSkKPiAgCQkJ ZXhpdCAoMCk7Cj4gZGlmZiAtLWdpdCBhL2twYXJ0eC9sb3BhcnQuYyBiL2twYXJ0eC9sb3BhcnQu Ywo+IGluZGV4IDAyYjI5ZThjLi4yNmIyNjc4YyAxMDA2NDQKPiAtLS0gYS9rcGFydHgvbG9wYXJ0 LmMKPiArKysgYi9rcGFydHgvbG9wYXJ0LmMKPiBAQCAtNjksNiArNjksMTMgQEAgY2hhciAqZmlu ZF9sb29wX2J5X2ZpbGUoY29uc3QgY2hhciAqZmlsZW5hbWUpCj4gIAlzdHJ1Y3QgbG9vcF9pbmZv IGxvb3BpbmZvOwo+ICAJY29uc3QgY2hhciBWSVJUX0JMT0NLW10gPSAiL3N5cy9kZXZpY2VzL3Zp cnR1YWwvYmxvY2siOwo+ICAJY2hhciBwYXRoW1BBVEhfTUFYXTsKPiArCWNoYXIgcmZpbGVuYW1l W1BBVEhfTUFYXTsKPiArCWNoYXIgcmxvb3BmaWxlbmFtZVtQQVRIX01BWF07Cj4gKwlpZiAocmVh bHBhdGgoZmlsZW5hbWUsIHJmaWxlbmFtZSkgPT0gTlVMTCkgewo+ICsJCWZwcmludGYoc3RkZXJy LCAiRXJyb3I6ICVzOiAlc1xuIiwgZmlsZW5hbWUsCj4gKwkJCQlzdHJlcnJvcihlcnJubykpOwo+ ICsJCWV4aXQgKDEpOwo+ICsJfQo+ICAKPiAgCWRpciA9IG9wZW5kaXIoVklSVF9CTE9DSyk7Cj4g IAlpZiAoIWRpcikKPiBAQCAtMTE3LDcgKzEyNCwxMCBAQCBjaGFyICpmaW5kX2xvb3BfYnlfZmls ZShjb25zdCBjaGFyICpmaWxlbmFtZSkKPiAgCj4gIAkJY2xvc2UgKGZkKTsKPiAgCj4gLQkJaWYg KDAgPT0gc3RyY21wKGZpbGVuYW1lLCBsb29waW5mby5sb19uYW1lKSkgewo+ICsJCWlmICgwID09 IHN0cmNtcChmaWxlbmFtZSwgbG9vcGluZm8ubG9fbmFtZSkgfHwKPiArCQkgICAgMCA9PSBzdHJj bXAocmZpbGVuYW1lLCBsb29waW5mby5sb19uYW1lKSB8fAo+ICsJCSAgICAocmVhbHBhdGgobG9v cGluZm8ubG9fbmFtZSwgcmxvb3BmaWxlbmFtZSkgJiYKPiArCQkgICAgIDAgPT0gc3RyY21wKHJm aWxlbmFtZSwgcmxvb3BmaWxlbmFtZSkpKSB7Cj4gIAkJCWZvdW5kID0gcmVhbHBhdGgocGF0aCwg TlVMTCk7Cj4gIAkJCWJyZWFrOwo+ICAJCX0KClRoYXQgImlmIHggbWF0Y2hlcyB5IG9yIHggbWF0 Y2hlcyB5JyBvciB4JyBtYXRjaGVzIHkiIGZlZWxzIGxpa2UKZ3Vlc3N3b3JrLiBDYW4ndCB3ZSBz aW1wbHkgY2FsbCByZWFscGF0aCgpIG9uIGJvdGggbG9vcGluZm8ubG9fbmFtZSBhbmQKZmlsZW5h bWUsIGFuZCBjb21wYXJlIHRoZSB0d28/IAoKTWFydGluCgotLSAKRHIuIE1hcnRpbiBXaWxjayA8 bXdpbGNrQHN1c2UuY29tPiwgVGVsLiArNDkgKDApOTExIDc0MDUzIDIxMDcKU1VTRSBMaW51eCBH bWJILCBHRjogRmVsaXggSW1lbmTDtnJmZmVyLCBKYW5lIFNtaXRoYXJkLCBHcmFoYW0gTm9ydG9u CkhSQiAyMTI4NCAoQUcgTsO8cm5iZXJnKQoKLS0KZG0tZGV2ZWwgbWFpbGluZyBsaXN0CmRtLWRl dmVsQHJlZGhhdC5jb20KaHR0cHM6Ly93d3cucmVkaGF0LmNvbS9tYWlsbWFuL2xpc3RpbmZvL2Rt LWRldmVs