From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Wilck Subject: Re: [PATCH 3/4] libmultipath: path latency: simplify getprio() Date: Thu, 07 Dec 2017 16:56:41 +0100 Message-ID: <1512662201.3207.25.camel@suse.com> References: <20171118001134.26622-1-mwilck@suse.com> <20171118001134.26622-4-mwilck@suse.com> <19c4c292-3297-b602-36c4-0dde2c61e266@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <19c4c292-3297-b602-36c4-0dde2c61e266@huawei.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: Guan Junxiong , Christophe Varoqui Cc: dm-devel@redhat.com, niuhaoxin , "Shenhong (C)" List-Id: dm-devel.ids T24gVGh1LCAyMDE3LTEyLTA3IGF0IDEyOjI2ICswODAwLCBHdWFuIEp1bnhpb25nIHdyb3RlOgo+ IEhpIE1hcnRpbiwKPiAKPiBJIGhhdmUgdGVzdGVkIHRoaXMgcGF0Y2ggYW5kIGZvdW5kIHNvbWV0 aGluZyBuZWVkZWQgdG8gYmUgY29ycmVjdC4gTXkKPiBjb21tZW50cyBpbmxpbmUuCj4gCj4gCj4g PiBAQCAtMzQwLDggKzMyMywxNCBAQCBpbnQgZ2V0cHJpbyhzdHJ1Y3QgcGF0aCAqcHAsIGNoYXIg KmFyZ3MsCj4gPiB1bnNpZ25lZCBpbnQgdGltZW91dCkKPiA+ICAJCQkgICIuSXQgaXMgcmVjb21t ZW5kIHRvIGJlIHNldCBsYXJnZXIiLAo+ID4gIAkJCSAgcHAtPmRldiwgYmFzZV9udW0pOwo+ID4g IAo+ID4gKwlzdGFuZGFyZF9kZXZpYXRpb24gPSBzcXJ0KChzdW1fc3F1YXJlcyAtIGxnX3RvbGRl bGF5ICoKPiA+IGxnX3RvbGRlbGF5KQo+ID4gKwkJCQkgIC8gKGlvX251bSAtMSkpOwo+ID4gIAo+ IAo+IFRoaXMgYXNzaWdubWVudCBpcyB3cm9uZy4gSXQgZ2V0cyBhICJOQU4iIGZvciBzdGFuZGFy ZF9kZXZpYXRpb24uCj4gSXQgc2hvdWxkIGJlIHRoZSBmb2xsb3dpbmcgZXF1YXRpb24gYWNjb3Jk aW5nIHRvIHN1bV9uICh4X2kgLQo+IGF2Zyh4KSleMiA9PSBzdW1fbiB4X2leMiAtIG4gKiBhdmco eCleMgo+IHN0YW5kYXJkX2RldmlhdGlvbiA9IHNxcnQoKHN1bV9zcXVhcmVzIC0gaW9fbnVtKiBs Z19hdmdsYXRlbmN5Kgo+IGxnX2F2Z2xhdGVuY3kpLyAoaW9fbnVtIC0xKSk7Cj4gICAgICAgICAg ICAgICAgICAgID0gc3FydCgoc3VtX3NxdWFyZXMgLSAgbGdfdG9sZGVsYXkqCj4gbGdfYXZnbGF0 ZW5jeSkvIChpb19udW0gLTEpKTsKClRoYXQncyBvZiBjb3Vyc2UgY29ycmVjdC4gSSdsbCBzdWJt aXQgYW4gdXBkYXRlIGFzYXAuCgo+IEkgc3RpbGwgaGF2ZSB0aGUgZG91YnQgYWJvdXQgdGhlIGNv bXB1dGF0aW9uIG9mIHRoZSAidW5jZXJ0YWludHkiCj4gaXRlbS4KPiBCZWNhdXNlIEkgaGF2ZSBv YnNlcnZlZCB0aGF0IHRoZSB1bmNlcnRhaW50eSBpcyBpbiB0aGUgcmFuZ2Ugb2YgMS4zIH4KPiAx LjYgd2hlbmV2ZXIKPiB0aGUgYmFzZV9udW0gdmFyaWVzIGZyb20gMS4xIHRvIDEwLgoKPiBEbyB5 b3UgbWVhbiB0aGUgdW5jZXJ0YWludHkgYXMgdGhlICJFcnJvciBmdW5jdGlvbiIgb2YgKGxvZykg bm9ybWFsCj4gZGlzdHJpYnV0aW9uPwoKPiBIZXJlIGlzIHRoZSBkZWZpbml0aW9uIG9mCj4gaHR0 cHM6Ly9lbi53aWtpcGVkaWEub3JnL3dpa2kvRXJyb3JfZnVuY3Rpb24KPiAKPiBJIHByZWZlciB0 byB1c2luZyAgIkVycm9yIGZ1bmN0aW9uIiB0aGF0IGRlc2NyaWJlcyBhY2N1bXVsYXRlZAo+IHBy b2JhYmlsaXR5IG9mICBob3cgIHByaW8KPiBsb2NhdGVzIGluIHRoZSAoLWluZiwgcHJpby0xKSBh bmQgKHByaW8rMSwgK2luZikuCgpUaGVyZSdzIGEgbWlzdW5kZXJzdGFuZGluZyBoZXJlLgoKTXkg InVuY2VydGFpbnR5IGZhY3RvciIgZGVzY3JpYmVzIHRoZSB3aWR0aCBvZiB0aGUgZGlzdHJpYnV0 aW9uIG9mIHRoZQoqbWVhc3VyZWQqIGxhdGVuY2llcy4gSXQgcm91Z2hseSByZXByZXNlbnRzIHRo ZSBhY2N1cmFjeSBvZiB0aGUKbWVhc3VyZW1lbnQgKGluZGljYXRpbmcgdGhhdCA2OCUsIG9yIGVy cm9yX2Z1bmN0aW9uIChzcXJ0KDEvMikpLCBvZiB0aGUKbWVhc3VyZWQgdmFsdWVzIGxpZSBpbiB0 aGUgaW50ZXJ2YWwgW2F2Zy9GLCBhdmcqRl0pLiBJT1csIGl0IHRlbGxzIHlvdQpob3cgc3RhYmxl IHlvdXIgbGF0ZW5jaWVzIGZvciBhIGNlcnRhaW4gcGF0aCBhcmUuCgpJdCBoYXMgbm90aGluZyB0 byBkbyB3aXRoIHRoZSBhcnRpZmljaWFsIHByaW8gImJpbnMiIHRoYXQgdGhlIGxhdGVuY3kKcHJp b3JpdGl6ZXIgc2V0cyB1cC4gVGhlcmVmb3JlIGl0ICpoYXMgdG8gYmUgaW5kZXBlbmRlbnQqIG9m IGJhc2VfbnVtLgpJdCBqdXN0IGdpdmVzIGFuIGluZGljYXRpb24gaG93IGxhcmdlIGJhc2VfbnVt IHNob3VsZCBiZS4gCgpJIGhvcGUgdGhpcyBtYWtlcyBpdCBjbGVhci4KCk1hcnRpbgoKLS0gCkRy LiBNYXJ0aW4gV2lsY2sgPG13aWxja0BzdXNlLmNvbT4sIFRlbC4gKzQ5ICgwKTkxMSA3NDA1MyAy MTA3ClNVU0UgTGludXggR21iSCwgR0Y6IEZlbGl4IEltZW5kw7ZyZmZlciwgSmFuZSBTbWl0aGFy ZCwgR3JhaGFtIE5vcnRvbgpIUkIgMjEyODQgKEFHIE7DvHJuYmVyZykKCi0tCmRtLWRldmVsIG1h aWxpbmcgbGlzdApkbS1kZXZlbEByZWRoYXQuY29tCmh0dHBzOi8vd3d3LnJlZGhhdC5jb20vbWFp bG1hbi9saXN0aW5mby9kbS1kZXZlbA==