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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Subject: Re: [Xen-devel] [PATCH v4 14/18] x86/mem_sharing: check page type count earlier X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Tamas K Lengyel , Wei Liu , George Dunlap , Andrew Cooper , xen-devel@lists.xenproject.org, =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMDguMDEuMjAyMCAxODoxNCwgVGFtYXMgSyBMZW5neWVsIHdyb3RlOgo+IC0tLSBhL3hlbi9h cmNoL3g4Ni9tbS9tZW1fc2hhcmluZy5jCj4gKysrIGIveGVuL2FyY2gveDg2L21tL21lbV9zaGFy aW5nLmMKPiBAQCAtNjUyLDE5ICs2NTIsMTggQEAgc3RhdGljIGludCBwYWdlX21ha2Vfc2hhcmFi bGUoc3RydWN0IGRvbWFpbiAqZCwKPiAgICAgICAgICByZXR1cm4gLUVCVVNZOwo+ICAgICAgfQo+ ICAKPiAtICAgIC8qIENoYW5nZSBwYWdlIHR5cGUgYW5kIGNvdW50IGF0b21pY2FsbHkgKi8KPiAt ICAgIGlmICggIWdldF9wYWdlX2FuZF90eXBlKHBhZ2UsIGQsIFBHVF9zaGFyZWRfcGFnZSkgKQo+ ICsgICAgLyogQ2hlY2sgaWYgcGFnZSBpcyBhbHJlYWR5IHR5cGVkIGFuZCBiYWlsIGVhcmx5IGlm IGl0IGlzICovCj4gKyAgICBpZiAoIChwYWdlLT51LmludXNlLnR5cGVfaW5mbyAmIFBHVF9jb3Vu dF9tYXNrKSAhPSAxICkKPiAgICAgIHsKPiAgICAgICAgICBzcGluX3VubG9jaygmZC0+cGFnZV9h bGxvY19sb2NrKTsKPiAtICAgICAgICByZXR1cm4gLUVJTlZBTDsKPiArICAgICAgICByZXR1cm4g LUVFWElTVDsKPiAgICAgIH0KPiAgCj4gLSAgICAvKiBDaGVjayBpdCB3YXNuJ3QgYWxyZWFkeSBz aGFyYWJsZSBhbmQgdW5kbyBpZiBpdCB3YXMgKi8KPiAtICAgIGlmICggKHBhZ2UtPnUuaW51c2Uu dHlwZV9pbmZvICYgUEdUX2NvdW50X21hc2spICE9IDEgKQo+ICsgICAgLyogQ2hhbmdlIHBhZ2Ug dHlwZSBhbmQgY291bnQgYXRvbWljYWxseSAqLwo+ICsgICAgaWYgKCAhZ2V0X3BhZ2VfYW5kX3R5 cGUocGFnZSwgZCwgUEdUX3NoYXJlZF9wYWdlKSApCj4gICAgICB7Cj4gICAgICAgICAgc3Bpbl91 bmxvY2soJmQtPnBhZ2VfYWxsb2NfbG9jayk7Cj4gLSAgICAgICAgcHV0X3BhZ2VfYW5kX3R5cGUo cGFnZSk7Cj4gLSAgICAgICAgcmV0dXJuIC1FRVhJU1Q7Cj4gKyAgICAgICAgcmV0dXJuIC1FSU5W QUw7Cj4gICAgICB9CgpJdCB3b3VsZCBzZWVtIHRvIG1lIHRoYXQgZWl0aGVyIHRoZSBvcmlnaW5h bCBvciB0aGUgbmV3IGNvZGUgY2Fubm90CmhhdmUgd29ya2VkIC8gd29yazogVGhlIG9yaWdpbmFs IHZhcmlhbnQgY2hlY2tlZCB0aGUgY291bnQgX2FmdGVyXwpoYXZpbmcgaW5jcmVtZW50ZWQgaXQs IGkuZS4gaXQgZXhwZWN0ZWQgYSAwLT4xIHRyYW5zaXRpb24uIFRoZSBuZXcKY29kZSBjaGVja3Mg dGhhdCB0aGUgY291bnQgaXMgMSBfYmVmb3JlXyBkb2luZyB0aGUgZ2V0LgoKSG93ZXZlciwgZXZl biBpZiB0aGlzIHdhcyBjaGFuZ2VkIHRvCgogICAgaWYgKCBwYWdlLT51LmludXNlLnR5cGVfaW5m byAmIFBHVF9jb3VudF9tYXNrICkKCkkgd291bGQgcmVjb21tZW5kIGFnYWluc3QgdGhlIGNoYW5n ZTogQWl1aSB5b3UgYnVpbGQgdXBvbiB0aGUgZmFjdAp0aGF0IGEgdHJhbnNpdGlvbiB0byBQR1Rf c2hhcmVkX3BhZ2UgY2FuIGhhcHBlbiBvbmx5IGhlcmUsIGFuZCB0aGlzCmNvZGUgaG9sZHMgZC0+ cGFnZV9hbGxvY19sb2NrLiBCdXQgaW1vIHRoaXMgaXMgbWFraW5nIHRoZSBjb2RlIG1vcmUKZnJh Z2lsZS4gSW4gZmFjdCBJIGNhbid0IGVhc2lseSBzZWUgd2h5IHRoZSBvdGhlciB0d28gY2FzZXMg d2hlcmUKUEdUX3NoYXJlZF9wYWdlIGdldHMgcGFzc2VkIHRvIGdldF9wYWdlX2FuZF90eXBlKCkg Y2FuJ3QgYWxzbwplZmZlY3QgYSAwLT4xIHRyYW5zaXRpb24uIEkgY2FuIG9ubHkgZ3Vlc3MgZnJv bSB0aGVpciBCVUdfT04oKS1zCnRoYXQgdGhleSBhc3N1bWUgYSByZWZlcmVuY2Ugd2FzIGFscmVh ZHkgYWNxdWlyZWQgc29tZXdoZXJlIGVsc2UuCgpKYW4KCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVs QGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1h bi9saXN0aW5mby94ZW4tZGV2ZWw=