From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: [PATCH for 4.7 4/4] xen: adopt .deinit_pdata and improve timer handling Date: Wed, 4 May 2016 16:51:17 +0100 Message-ID: <572A1A75.5090706@citrix.com> References: <146231184906.25631.6550047090421454264.stgit@Solace.fritz.box> <146231201861.25631.15476137738176988146.stgit@Solace.fritz.box> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1axz5J-0000Zx-8a for xen-devel@lists.xenproject.org; Wed, 04 May 2016 15:51:33 +0000 In-Reply-To: <146231201861.25631.15476137738176988146.stgit@Solace.fritz.box> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Dario Faggioli , xen-devel@lists.xenproject.org Cc: Tianyang Chen , Wei Liu , Meng Xu List-Id: xen-devel@lists.xenproject.org T24gMDMvMDUvMTYgMjI6NDYsIERhcmlvIEZhZ2dpb2xpIHdyb3RlOgo+IFRoZSBzY2hlZHVsaW5n IGhvb2tzIEFQSSBpcyBub3cgdXNlZCBwcm9wZXJseSwgYW5kIG5vCj4gaW5pdGlhbGl6YXRpb24g b3IgZGUtaW5pdGlhbGl6YXRpb24gaGFwcGVuIGluCj4gYWxsb2MvZnJlZV9wZGF0YSBhbnkgbG9u Z2VyLgo+IAo+IEluIGZhY3QsIGp1c3QgbGlrZSBpdCBpcyBmb3IgQ3JlZGl0MiwgdGhlcmUgaXMg bm8gcmVhbAo+IG5lZWQgZm9yIGltcGxlbWVudGluZyBhbGxvY19wZGF0YSBhbmQgZnJlZV9wZGF0 YS4KPiAKPiBUaGlzIGFsc28gbWFkZSBpdCBwb3NzaWJsZSB0byBpbXByb3ZlIHRoZSByZXBsZW5p c2htZW50Cj4gdGltZXIgaGFuZGxpbmcgbG9naWMsIHN1Y2ggdGhhdCBub3cgdGhlIHRpbWVyIGlz IGFsd2F5cwo+IGtlcHQgb24gb25lIG9mIHRoZSBwQ1BVIG9mIHRoZSBzY2hlZHVsZXIgaXQncyBz ZXJ2aWNpbmcuCj4gQmVmb3JlIHRoaXMgY29tbWl0LCBpbiBmYWN0LCBldmVuIGlmIHRoZSBwQ1BV IHdoZXJlIHRoZQo+IHRpbWVyIGhhcHBlbmVkIHRvIGJlIGluaXRpYWxpemVkIGF0IGNyZWF0aW9u IHRpbWUgd2FzCj4gbW92ZWQgdG8gYW5vdGhlciBjcHVwb29sLCB0aGUgdGltZXIgc3RheWVkIHRo ZXJlLAo+IHBvdGVudGlhbGx5IGluZmVyZmVhcmluZyB3aXRoIHRoZSBuZXcgc2NoZWR1bGVyIG9m IHRoZQoKKiBpbnRlcmZlcmluZwoKPiBwQ1BVIGl0c2VsZi4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBE YXJpbyBGYWdnaW9saSA8ZGFyaW8uZmFnZ2lvbGlAY2l0cml4LmNvbT4KCkkgZG9uJ3Qga25vdyBt dWNoIGFib3V0IHRoZSBsb2dpYywgc28gSSdsbCB3YWl0IGZvciBNZW5nIFh1IHRvIHJldmlldyBp dC4KCiAtR2VvcmdlCgo+IC0tCj4gQ2M6IE1lbmcgWHUgPG1lbmd4dUBjaXMudXBlbm4uZWR1Pgo+ IENjOiBHZW9yZ2UgRHVubGFwIDxnZW9yZ2UuZHVubGFwQGNpdHJpeC5jb20+Cj4gQ2M6IFRpYW55 YW5nIENoZW4gPHRpY2hlQHNlYXMudXBlbm4uZWR1Pgo+IENjOiBXZWkgTGl1IDx3ZWkubGl1MkBj aXRyaXguY29tPgo+IC0tLQo+ICB4ZW4vY29tbW9uL3NjaGVkX3J0LmMgfCAgIDc0ICsrKysrKysr KysrKysrKysrKysrKysrKysrKysrKysrKysrKy0tLS0tLS0tLS0tLS0KPiAgMSBmaWxlIGNoYW5n ZWQsIDU1IGluc2VydGlvbnMoKyksIDE5IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS94 ZW4vY29tbW9uL3NjaGVkX3J0LmMgYi94ZW4vY29tbW9uL3NjaGVkX3J0LmMKPiBpbmRleCA2NzNm YzkyLi43ZjhmNDExIDEwMDY0NAo+IC0tLSBhL3hlbi9jb21tb24vc2NoZWRfcnQuYwo+ICsrKyBi L3hlbi9jb21tb24vc2NoZWRfcnQuYwo+IEBAIC01OTAsNiArNTkwLDEwIEBAIHJ0X2luaXQoc3Ry dWN0IHNjaGVkdWxlciAqb3BzKQo+ICAgICAgaWYgKCBwcnYgPT0gTlVMTCApCj4gICAgICAgICAg cmV0dXJuIC1FTk9NRU07Cj4gIAo+ICsgICAgcHJ2LT5yZXBsX3RpbWVyID0geHphbGxvYyhzdHJ1 Y3QgdGltZXIpOwo+ICsgICAgaWYgKCBwcnYtPnJlcGxfdGltZXIgPT0gTlVMTCApCj4gKyAgICAg ICAgcmV0dXJuIC1FTk9NRU07Cj4gKwo+ICAgICAgc3Bpbl9sb2NrX2luaXQoJnBydi0+bG9jayk7 Cj4gICAgICBJTklUX0xJU1RfSEVBRCgmcHJ2LT5zZG9tKTsKPiAgICAgIElOSVRfTElTVF9IRUFE KCZwcnYtPnJ1bnEpOwo+IEBAIC02MDAsMTIgKzYwNCw2IEBAIHJ0X2luaXQoc3RydWN0IHNjaGVk dWxlciAqb3BzKQo+ICAKPiAgICAgIG9wcy0+c2NoZWRfZGF0YSA9IHBydjsKPiAgCj4gLSAgICAv Kgo+IC0gICAgICogVGhlIHRpbWVyIGluaXRpYWxpemF0aW9uIHdpbGwgaGFwcGVuIGxhdGVyIHdo ZW4KPiAtICAgICAqIHRoZSBmaXJzdCBwY3B1IGlzIGFkZGVkIHRvIHRoaXMgcG9vbCBpbiBhbGxv Y19wZGF0YS4KPiAtICAgICAqLwo+IC0gICAgcHJ2LT5yZXBsX3RpbWVyID0gTlVMTDsKPiAtCj4g ICAgICByZXR1cm4gMDsKPiAgfQo+ICAKPiBAQCAtNjE0LDcgKzYxMiw4IEBAIHJ0X2RlaW5pdChz dHJ1Y3Qgc2NoZWR1bGVyICpvcHMpCj4gIHsKPiAgICAgIHN0cnVjdCBydF9wcml2YXRlICpwcnYg PSBydF9wcml2KG9wcyk7Cj4gIAo+IC0gICAga2lsbF90aW1lcihwcnYtPnJlcGxfdGltZXIpOwo+ ICsgICAgQVNTRVJUKHBydi0+cmVwbF90aW1lci0+c3RhdHVzID09IFRJTUVSX1NUQVRVU19pbnZh bGlkIHx8Cj4gKyAgICAgICAgICAgcHJ2LT5yZXBsX3RpbWVyLT5zdGF0dXMgPT0gVElNRVJfU1RB VFVTX2tpbGxlZCk7Cj4gICAgICB4ZnJlZShwcnYtPnJlcGxfdGltZXIpOwo+ICAKPiAgICAgIG9w cy0+c2NoZWRfZGF0YSA9IE5VTEw7Cj4gQEAgLTYzMiw5ICs2MzEsMTkgQEAgcnRfaW5pdF9wZGF0 YShjb25zdCBzdHJ1Y3Qgc2NoZWR1bGVyICpvcHMsIHZvaWQgKnBkYXRhLCBpbnQgY3B1KQo+ICAg ICAgc3BpbmxvY2tfdCAqb2xkX2xvY2s7Cj4gICAgICB1bnNpZ25lZCBsb25nIGZsYWdzOwo+ICAK PiAtICAgIC8qIE1vdmUgdGhlIHNjaGVkdWxlciBsb2NrIHRvIG91ciBnbG9iYWwgcnVucXVldWUg bG9jay4gICovCj4gICAgICBvbGRfbG9jayA9IHBjcHVfc2NoZWR1bGVfbG9ja19pcnFzYXZlKGNw dSwgJmZsYWdzKTsKPiAgCj4gKyAgICAvKgo+ICsgICAgICogVElNRVJfU1RBVFVTX2ludmFsaWQg bWVhbnMgd2UgYXJlIHRoZSBmaXJzdCBjcHUgdGhhdCBzZWVzIHRoZSB0aW1lcgo+ICsgICAgICog YWxsb2NhdGVkIGJ1dCBub3QgaW5pdGlhbGl6ZWQsIGFuZCBzbyBpdCdzIHVwIHRvIHVzIHRvIGlu aXRpYWxpemUgaXQuCj4gKyAgICAgKi8KPiArICAgIGlmICggcHJ2LT5yZXBsX3RpbWVyLT5zdGF0 dXMgPT0gVElNRVJfU1RBVFVTX2ludmFsaWQgKQo+ICsgICAgewo+ICsgICAgICAgIGluaXRfdGlt ZXIocHJ2LT5yZXBsX3RpbWVyLCByZXBsX3RpbWVyX2hhbmRsZXIsICh2b2lkKikgb3BzLCBjcHUp Owo+ICsgICAgICAgIGRwcmludGsoWEVOTE9HX0RFQlVHLCAiUlREUzogdGltZXIgaW5pdGlhbGl6 ZWQgb24gY3B1ICV1XG4iLCBjcHUpOwo+ICsgICAgfQo+ICsKPiArICAgIC8qIE1vdmUgdGhlIHNj aGVkdWxlciBsb2NrIHRvIG91ciBnbG9iYWwgcnVucXVldWUgbG9jay4gICovCj4gICAgICBwZXJf Y3B1KHNjaGVkdWxlX2RhdGEsIGNwdSkuc2NoZWR1bGVfbG9jayA9ICZwcnYtPmxvY2s7Cj4gIAo+ ICAgICAgLyogX05vdF8gcGNwdV9zY2hlZHVsZV91bmxvY2soKTogcGVyX2NwdSgpLnNjaGVkdWxl X2xvY2sgY2hhbmdlZCEgKi8KPiBAQCAtNjU5LDYgKzY2OCwyMCBAQCBydF9zd2l0Y2hfc2NoZWQo c3RydWN0IHNjaGVkdWxlciAqbmV3X29wcywgdW5zaWduZWQgaW50IGNwdSwKPiAgICAgICAqLwo+ ICAgICAgQVNTRVJUKHBlcl9jcHUoc2NoZWR1bGVfZGF0YSwgY3B1KS5zY2hlZHVsZV9sb2NrICE9 ICZwcnYtPmxvY2spOwo+ICAKPiArICAgIC8qCj4gKyAgICAgKiBJZiB3ZSBhcmUgdGhlIGFic29s dXRlIGZpcnN0IGNwdSBiZWluZyBzd2l0Y2hlZCB0b3dhcmQgdGhpcwo+ICsgICAgICogc2NoZWR1 bGVyIChpbiB3aGljaCBjYXNlIHdlJ2xsIHNlZSBUSU1FUl9TVEFUVVNfaW52YWxpZCksIG9yIHRo ZQo+ICsgICAgICogZmlyc3Qgb25lIHRoYXQgaXMgYWRkZWQgYmFjayB0byB0aGUgY3B1cG9vbCB0 aGF0IGhhZCBhbGwgaXRzIGNwdXMKPiArICAgICAqIHJlbW92ZWQgKGluIHdoaWNoIGNhc2Ugd2Un bGwgc2VlIFRJTUVSX1NUQVRVU19raWxsZWQpLCBpdCdzIG91cgo+ICsgICAgICogam9iIHRvIChy ZSlpbml0aWFsaXplIHRoZSB0aW1lci4KPiArICAgICAqLwo+ICsgICAgaWYgKCBwcnYtPnJlcGxf dGltZXItPnN0YXR1cyA9PSBUSU1FUl9TVEFUVVNfaW52YWxpZCB8fAo+ICsgICAgICAgICBwcnYt PnJlcGxfdGltZXItPnN0YXR1cyA9PSBUSU1FUl9TVEFUVVNfa2lsbGVkICkKPiArICAgIHsKPiAr ICAgICAgICBpbml0X3RpbWVyKHBydi0+cmVwbF90aW1lciwgcmVwbF90aW1lcl9oYW5kbGVyLCAo dm9pZCopIG5ld19vcHMsIGNwdSk7Cj4gKyAgICAgICAgZHByaW50ayhYRU5MT0dfREVCVUcsICJS VERTOiB0aW1lciBpbml0aWFsaXplZCBvbiBjcHUgJXVcbiIsIGNwdSk7Cj4gKyAgICB9Cj4gKwo+ ICAgICAgaWRsZV92Y3B1W2NwdV0tPnNjaGVkX3ByaXYgPSB2ZGF0YTsKPiAgICAgIHBlcl9jcHUo c2NoZWR1bGVyLCBjcHUpID0gbmV3X29wczsKPiAgICAgIHBlcl9jcHUoc2NoZWR1bGVfZGF0YSwg Y3B1KS5zY2hlZF9wcml2ID0gTlVMTDsgLyogbm8gcGRhdGEgKi8KPiBAQCAtNjcyLDIzICs2OTUs MzYgQEAgcnRfc3dpdGNoX3NjaGVkKHN0cnVjdCBzY2hlZHVsZXIgKm5ld19vcHMsIHVuc2lnbmVk IGludCBjcHUsCj4gICAgICBwZXJfY3B1KHNjaGVkdWxlX2RhdGEsIGNwdSkuc2NoZWR1bGVfbG9j ayA9ICZwcnYtPmxvY2s7Cj4gIH0KPiAgCj4gLXN0YXRpYyB2b2lkICoKPiAtcnRfYWxsb2NfcGRh dGEoY29uc3Qgc3RydWN0IHNjaGVkdWxlciAqb3BzLCBpbnQgY3B1KQo+ICtzdGF0aWMgdm9pZAo+ ICtydF9kZWluaXRfcGRhdGEoY29uc3Qgc3RydWN0IHNjaGVkdWxlciAqb3BzLCB2b2lkICpwY3B1 LCBpbnQgY3B1KQo+ICB7Cj4gKyAgICB1bnNpZ25lZCBsb25nIGZsYWdzOwo+ICAgICAgc3RydWN0 IHJ0X3ByaXZhdGUgKnBydiA9IHJ0X3ByaXYob3BzKTsKPiAgCj4gLSAgICBpZiAoIHBydi0+cmVw bF90aW1lciA9PSBOVUxMICkKPiAtICAgIHsKPiAtICAgICAgICAvKiBBbGxvY2F0ZSB0aGUgdGlt ZXIgb24gdGhlIGZpcnN0IGNwdSBvZiB0aGlzIHBvb2wuICovCj4gLSAgICAgICAgcHJ2LT5yZXBs X3RpbWVyID0geHphbGxvYyhzdHJ1Y3QgdGltZXIpOwo+ICsgICAgc3Bpbl9sb2NrX2lycXNhdmUo JnBydi0+bG9jaywgZmxhZ3MpOwo+ICAKPiAtICAgICAgICBpZiAoIHBydi0+cmVwbF90aW1lciA9 PSBOVUxMICkKPiAtICAgICAgICAgICAgcmV0dXJuIEVSUl9QVFIoLUVOT01FTSk7Cj4gKyAgICBp ZiAoIHBydi0+cmVwbF90aW1lci0+Y3B1ID09IGNwdSApCj4gKyAgICB7Cj4gKyAgICAgICAgc3Ry dWN0IGNwdXBvb2wgKmMgPSBwZXJfY3B1KGNwdXBvb2wsIGNwdSk7Cj4gKyAgICAgICAgdW5zaWdu ZWQgaW50IG5ld19jcHUgPSBjcHVtYXNrX2N5Y2xlKGNwdSwgY3B1cG9vbF9vbmxpbmVfY3B1bWFz ayhjKSk7Cj4gIAo+IC0gICAgICAgIGluaXRfdGltZXIocHJ2LT5yZXBsX3RpbWVyLCByZXBsX3Rp bWVyX2hhbmRsZXIsICh2b2lkICopb3BzLCBjcHUpOwo+ICsgICAgICAgIC8qCj4gKyAgICAgICAg ICogTWFrZSBzdXJlIHRoZSB0aW1lciBydW4gb24gb25lIG9mIHRoZSBjcHVzIHRoYXQgYXJlIHN0 aWxsIGF2YWlsYWJsZQo+ICsgICAgICAgICAqIHRvIHRoaXMgc2NoZWR1bGVyLiBJZiB0aGVyZSBh cmVuJ3QgYW55IGxlZnQsIGl0IG1lYW5zIGl0J3MgdGhlIHRpbWUKPiArICAgICAgICAgKiB0byBq dXN0IGtpbGwgaXQuCj4gKyAgICAgICAgICovCj4gKyAgICAgICAgaWYgKCBuZXdfY3B1ID49IG5y X2NwdV9pZHMgKQo+ICsgICAgICAgIHsKPiArICAgICAgICAgICAga2lsbF90aW1lcihwcnYtPnJl cGxfdGltZXIpOwo+ICsgICAgICAgICAgICBkcHJpbnRrKFhFTkxPR19ERUJVRywgIlJURFM6IHRp bWVyIGtpbGxlZCBvbiBjcHUgJWRcbiIsIGNwdSk7Cj4gKyAgICAgICAgfQo+ICsgICAgICAgIGVs c2UKPiArICAgICAgICB7Cj4gKyAgICAgICAgICAgIG1pZ3JhdGVfdGltZXIocHJ2LT5yZXBsX3Rp bWVyLCBuZXdfY3B1KTsKPiArICAgICAgICB9Cj4gICAgICB9Cj4gIAo+IC0gICAgcmV0dXJuIE5V TEw7Cj4gKyAgICBzcGluX3VubG9ja19pcnFyZXN0b3JlKCZwcnYtPmxvY2ssIGZsYWdzKTsKPiAg fQo+ICAKPiAgc3RhdGljIHZvaWQgKgo+IEBAIC0xNDMzLDkgKzE0NjksOSBAQCBzdGF0aWMgY29u c3Qgc3RydWN0IHNjaGVkdWxlciBzY2hlZF9ydGRzX2RlZiA9IHsKPiAgICAgIC5kdW1wX3NldHRp bmdzICA9IHJ0X2R1bXAsCj4gICAgICAuaW5pdCAgICAgICAgICAgPSBydF9pbml0LAo+ICAgICAg LmRlaW5pdCAgICAgICAgID0gcnRfZGVpbml0LAo+IC0gICAgLmFsbG9jX3BkYXRhICAgID0gcnRf YWxsb2NfcGRhdGEsCj4gICAgICAuaW5pdF9wZGF0YSAgICAgPSBydF9pbml0X3BkYXRhLAo+ICAg ICAgLnN3aXRjaF9zY2hlZCAgID0gcnRfc3dpdGNoX3NjaGVkLAo+ICsgICAgLmRlaW5pdF9wZGF0 YSAgID0gcnRfZGVpbml0X3BkYXRhLAo+ICAgICAgLmFsbG9jX2RvbWRhdGEgID0gcnRfYWxsb2Nf ZG9tZGF0YSwKPiAgICAgIC5mcmVlX2RvbWRhdGEgICA9IHJ0X2ZyZWVfZG9tZGF0YSwKPiAgICAg IC5pbml0X2RvbWFpbiAgICA9IHJ0X2RvbV9pbml0LAo+IAoKCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRl dmVsQGxpc3RzLnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==