From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Snitzer Subject: Re: dm: fix blk-mq request-based DM queue initialization Date: Thu, 30 Apr 2015 08:47:41 -0400 Message-ID: <20150430124741.GA29757@redhat.com> References: <20150425092358.GA15550@infradead.org> <1430269153-647-1-git-send-email-snitzer@redhat.com> <20150429130037.GA3017@lst.de> <20150430014152.GA26430@redhat.com> <20150430072200.GB15819@lst.de> <20150430082315.GA17074@lst.de> 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 In-Reply-To: <20150430082315.GA17074@lst.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Christoph Hellwig Cc: dm-devel@redhat.com List-Id: dm-devel.ids T24gVGh1LCBBcHIgMzAgMjAxNSBhdCAgNDoyM2FtIC0wNDAwLApDaHJpc3RvcGggSGVsbHdpZyA8 aGNoQGxzdC5kZT4gd3JvdGU6Cgo+IE9uIFRodSwgQXByIDMwLCAyMDE1IGF0IDA5OjIyOjAwQU0g KzAyMDAsIENocmlzdG9waCBIZWxsd2lnIHdyb3RlOgo+ID4gV2VsbCAtIHdlJ3JlIG9idmlvdXNs eSB0cnlpbmcgdG8gcmVpbml0aWFsaXplIGl0IGhlcmUgYW5kIG9ubHkgZXJyb3IKPiA+IG91dCB2 ZXJ5IGxvdyBsZXZlbCB3aXRoIHlvdXIgcGF0Y2guICBXaGF0IEkgbWVhbiBpcyB0aGF0IHdlIHNo b3VsZG4ndAo+ID4gZXZlbiB0cnkgdG8gcmVpbml0aWFsaXplIGl0IGF0IGEgbXVjaCBoaWdoZXIg bGV2ZWwsIHNvIHdlIGRvbid0IG5lZWQKPiA+IHRoaXMgYmxrLW1xIHNwZWNpZmljIGhhY2sgZG93 biBoZXJlLgoKT0ssIHVuZGVyc3Rvb2QuCgo+IEZZSSwgdGhpcyBmaXhlcyB0aGUgaXNzc3VlIGZv ciBtZSBhbmQgc2VlbXMgdG8gYmUgIm1vcmUgY29ycmVjdCIgYXQKPiBhIGhpZ2hlciBsZXZlbDoK ClllYWgsIEkgbGlrZSB0aGlzLiAgTWVhbnMgdGhlIGVhcmx5IHJldHVybiBpbgpkbV9pbml0X3Jl cXVlc3RfYmFzZWRfcXVldWUoKSBjYW4gYmUgcmVtb3ZlZCB0b28uCgo+IC0tLQo+IEZyb206IENo cmlzdG9waCBIZWxsd2lnIDxoY2hAbHN0LmRlPgo+IFN1YmplY3Q6IFtQQVRDSF0gZG06IG9ubHkg aW5pdGlhbGl6ZSByZXF1ZXN0X3F1ZXVlIG9uY2UKPiAKPiBXZSBzaG91bGQgb25seSBpbtGWbml0 aWFsaXplIHRoZSByZXF1ZXN0X3F1ZXVlIG9uIHRoZSBpbml0aWFsIHRhYmxlIGxvYWQgd2hlbgo+ IHdlIGFzc2luZyB0aGUgZGV2aWNlIHR5cGUuCgoiYXNzaW5nIiA7KSAgV2lsbCBmaXggdXAgYW5k IGFsc28gYWRkIHRoYXQgdGhpcyBwYXRjaCBmaXhlcyB0aGUgaXNzdWUKeW91IHJlcG9ydGVkLCB0 aGFua3MuCgo+IFNpZ25lZC1vZmYtYnk6IENocmlzdG9waCBIZWxsd2lnIDxoY2hAbHN0LmRlPgo+ IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL21kL2RtLWlvY3RsLmMgYi9kcml2ZXJzL21kL2RtLWlv Y3RsLmMKPiBpbmRleCBjOGExOGU0Li5kZTkyNjYyIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvbWQv ZG0taW9jdGwuYwo+ICsrKyBiL2RyaXZlcnMvbWQvZG0taW9jdGwuYwo+IEBAIC0xMjk4LDIxICsx Mjk4LDIyIEBAIHN0YXRpYyBpbnQgdGFibGVfbG9hZChzdHJ1Y3QgZG1faW9jdGwgKnBhcmFtLCBz aXplX3QgcGFyYW1fc2l6ZSkKPiAgCQlnb3RvIGVycl91bmxvY2tfbWRfdHlwZTsKPiAgCX0KPiAg Cj4gLQlpZiAoZG1fZ2V0X21kX3R5cGUobWQpID09IERNX1RZUEVfTk9ORSkKPiArCWlmIChkbV9n ZXRfbWRfdHlwZShtZCkgPT0gRE1fVFlQRV9OT05FKSB7Cj4gIAkJLyogSW5pdGlhbCB0YWJsZSBs b2FkOiBhY3F1aXJlIHR5cGUgb2YgdGFibGUuICovCj4gIAkJZG1fc2V0X21kX3R5cGUobWQsIGRt X3RhYmxlX2dldF90eXBlKHQpKTsKPiAtCWVsc2UgaWYgKGRtX2dldF9tZF90eXBlKG1kKSAhPSBk bV90YWJsZV9nZXRfdHlwZSh0KSkgewo+ICsJCj4gKwkJLyogc2V0dXAgbWQtPnF1ZXVlIHRvIHJl ZmxlY3QgbWQncyB0eXBlIChtYXkgYmxvY2spICovCj4gKwkJciA9IGRtX3NldHVwX21kX3F1ZXVl KG1kKTsKPiArCQlpZiAocikgewo+ICsJCQlETVdBUk4oInVuYWJsZSB0byBzZXQgdXAgZGV2aWNl IHF1ZXVlIGZvciBuZXcgdGFibGUuIik7Cj4gKwkJCWdvdG8gZXJyX3VubG9ja19tZF90eXBlOwo+ ICsJCX0KPiArCX0gZWxzZSBpZiAoZG1fZ2V0X21kX3R5cGUobWQpICE9IGRtX3RhYmxlX2dldF90 eXBlKHQpKSB7Cj4gIAkJRE1XQVJOKCJjYW4ndCBjaGFuZ2UgZGV2aWNlIHR5cGUgYWZ0ZXIgaW5p dGlhbCB0YWJsZSBsb2FkLiIpOwo+ICAJCXIgPSAtRUlOVkFMOwo+ICAJCWdvdG8gZXJyX3VubG9j a19tZF90eXBlOwo+ICAJfQo+ICAKPiAtCS8qIHNldHVwIG1kLT5xdWV1ZSB0byByZWZsZWN0IG1k J3MgdHlwZSAobWF5IGJsb2NrKSAqLwo+IC0JciA9IGRtX3NldHVwX21kX3F1ZXVlKG1kKTsKPiAt CWlmIChyKSB7Cj4gLQkJRE1XQVJOKCJ1bmFibGUgdG8gc2V0IHVwIGRldmljZSBxdWV1ZSBmb3Ig bmV3IHRhYmxlLiIpOwo+IC0JCWdvdG8gZXJyX3VubG9ja19tZF90eXBlOwo+IC0JfQo+ICAJZG1f dW5sb2NrX21kX3R5cGUobWQpOwo+ICAKPiAgCS8qIHN0YWdlIGluYWN0aXZlIHRhYmxlICovCgot LQpkbS1kZXZlbCBtYWlsaW5nIGxpc3QKZG0tZGV2ZWxAcmVkaGF0LmNvbQpodHRwczovL3d3dy5y ZWRoYXQuY29tL21haWxtYW4vbGlzdGluZm8vZG0tZGV2ZWw=