From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Hajnoczi Subject: [RFC 3/3] virtio-blk: use NUMA-aware memory allocation in probe Date: Thu, 25 Jun 2020 14:57:52 +0100 Message-ID: <20200625135752.227293-4-stefanha@redhat.com> References: <20200625135752.227293-1-stefanha@redhat.com> Mime-Version: 1.0 Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20200625135752.227293-1-stefanha@redhat.com> Sender: kvm-owner@vger.kernel.org To: kvm@vger.kernel.org Cc: virtualization@lists.linux-foundation.org, "Michael S. Tsirkin" , Jason Wang List-Id: virtualization@lists.linuxfoundation.org QWxsb2NhdGUgZnJlcXVlbnRseS1hY2Nlc3NlZCBkYXRhIHN0cnVjdHVyZXMgZnJvbSB0aGUgTlVN QSBub2RlCmFzc29jaWF0ZWQgd2l0aCB0aGlzIGRldmljZSB0byBhdm9pZCBzbG93IGNyb3NzLU5V TUEgbm9kZSBtZW1vcnkKYWNjZXNzZXMuCgpPbmx5IHRoZSBmb2xsb3dpbmcgbWVtb3J5IGFsbG9j YXRpb25zIGFyZSBtYWRlIE5VTUEtYXdhcmU6CgoxLiBDYWxsZWQgZHVyaW5nIHByb2JlLiBJZiBj YWxsZWQgaW4gdGhlIGRhdGEgcGF0aCB0aGVuIGhvcGVmdWxseSB3ZSdyZQogICBleGVjdXRpbmcg b24gYSBDUFUgaW4gdGhlIHNhbWUgTlVNQSBub2RlIGFzIHRoZSBkZXZpY2UuIElmIHRoZSBDUFUg aXMKICAgbm90IGluIHRoZSByaWdodCBOVU1BIG5vZGUgdGhlbiBpdCdzIHVuY2xlYXIgd2hldGhl ciBmb3JjaW5nIG1lbW9yeQogICBhbGxvY2F0aW9ucyB0byB1c2UgdGhlIGRldmljZSdzIE5VTUEg bm9kZSB3aWxsIGluY3JlYXNlIG9yIGRlY3JlYXNlCiAgIHBlcmZvcm1hbmNlLgoKMi4gTWVtb3J5 IHdpbGwgYmUgZnJlcXVlbnRseSBhY2Nlc3NlZCBmcm9tIHRoZSBkYXRhIHBhdGguIFRoZXJlIGlz IG5vCiAgIG5lZWQgdG8gd29ycnkgYWJvdXQgZGF0YSB0aGF0IGlzIG5vdCBhY2Nlc3NlZCBmcm9t CiAgIHBlcmZvcm1hbmNlLWNyaXRpY2FsIGNvZGUgcGF0aHMuCgpTaWduZWQtb2ZmLWJ5OiBTdGVm YW4gSGFqbm9jemkgPHN0ZWZhbmhhQHJlZGhhdC5jb20+Ci0tLQogZHJpdmVycy9ibG9jay92aXJ0 aW9fYmxrLmMgfCA3ICsrKysrLS0KIDEgZmlsZSBjaGFuZ2VkLCA1IGluc2VydGlvbnMoKyksIDIg ZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ibG9jay92aXJ0aW9fYmxrLmMgYi9k cml2ZXJzL2Jsb2NrL3ZpcnRpb19ibGsuYwppbmRleCA5ZDIxYmYwZjE1NWUuLjQwODQ1ZTlhZDNi MSAxMDA2NDQKLS0tIGEvZHJpdmVycy9ibG9jay92aXJ0aW9fYmxrLmMKKysrIGIvZHJpdmVycy9i bG9jay92aXJ0aW9fYmxrLmMKQEAgLTQ4Miw2ICs0ODIsNyBAQCBzdGF0aWMgaW50IGluaXRfdnEo c3RydWN0IHZpcnRpb19ibGsgKnZibGspCiAJdW5zaWduZWQgc2hvcnQgbnVtX3ZxczsKIAlzdHJ1 Y3QgdmlydGlvX2RldmljZSAqdmRldiA9IHZibGstPnZkZXY7CiAJc3RydWN0IGlycV9hZmZpbml0 eSBkZXNjID0geyAwLCB9OworCWludCBub2RlID0gZGV2X3RvX25vZGUoJnZkZXYtPmRldik7CiAK IAllcnIgPSB2aXJ0aW9fY3JlYWRfZmVhdHVyZSh2ZGV2LCBWSVJUSU9fQkxLX0ZfTVEsCiAJCQkJ ICAgc3RydWN0IHZpcnRpb19ibGtfY29uZmlnLCBudW1fcXVldWVzLApAQCAtNDkxLDcgKzQ5Miw4 IEBAIHN0YXRpYyBpbnQgaW5pdF92cShzdHJ1Y3QgdmlydGlvX2JsayAqdmJsaykKIAogCW51bV92 cXMgPSBtaW5fdCh1bnNpZ25lZCBpbnQsIG5yX2NwdV9pZHMsIG51bV92cXMpOwogCi0JdmJsay0+ dnFzID0ga21hbGxvY19hcnJheShudW1fdnFzLCBzaXplb2YoKnZibGstPnZxcyksIEdGUF9LRVJO RUwpOworCXZibGstPnZxcyA9IGttYWxsb2NfYXJyYXlfbm9kZShudW1fdnFzLCBzaXplb2YoKnZi bGstPnZxcyksCisJCQkJICAgICAgIEdGUF9LRVJORUwsIG5vZGUpOwogCWlmICghdmJsay0+dnFz KQogCQlyZXR1cm4gLUVOT01FTTsKIApAQCAtNjgzLDYgKzY4NSw3IEBAIG1vZHVsZV9wYXJhbV9u YW1lZChxdWV1ZV9kZXB0aCwgdmlydGJsa19xdWV1ZV9kZXB0aCwgdWludCwgMDQ0NCk7CiAKIHN0 YXRpYyBpbnQgdmlydGJsa19wcm9iZShzdHJ1Y3QgdmlydGlvX2RldmljZSAqdmRldikKIHsKKwlp bnQgbm9kZSA9IGRldl90b19ub2RlKCZ2ZGV2LT5kZXYpOwogCXN0cnVjdCB2aXJ0aW9fYmxrICp2 YmxrOwogCXN0cnVjdCByZXF1ZXN0X3F1ZXVlICpxOwogCWludCBlcnIsIGluZGV4OwpAQCAtNzE0 LDcgKzcxNyw3IEBAIHN0YXRpYyBpbnQgdmlydGJsa19wcm9iZShzdHJ1Y3QgdmlydGlvX2Rldmlj ZSAqdmRldikKIAogCS8qIFdlIG5lZWQgYW4gZXh0cmEgc2cgZWxlbWVudHMgYXQgaGVhZCBhbmQg dGFpbC4gKi8KIAlzZ19lbGVtcyArPSAyOwotCXZkZXYtPnByaXYgPSB2YmxrID0ga21hbGxvYyhz aXplb2YoKnZibGspLCBHRlBfS0VSTkVMKTsKKwl2ZGV2LT5wcml2ID0gdmJsayA9IGttYWxsb2Nf bm9kZShzaXplb2YoKnZibGspLCBHRlBfS0VSTkVMLCBub2RlKTsKIAlpZiAoIXZibGspIHsKIAkJ ZXJyID0gLUVOT01FTTsKIAkJZ290byBvdXRfZnJlZV9pbmRleDsKLS0gCjIuMjYuMgoK