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[79.242.61.139]) by smtp.gmail.com with ESMTPSA id i10sm8311155wmq.21.2021.08.12.00.07.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 12 Aug 2021 00:07:42 -0700 (PDT) To: Andy Shevchenko References: <20210811203612.138506-1-david@redhat.com> <20210811203612.138506-4-david@redhat.com> From: David Hildenbrand Organization: Red Hat Subject: Re: [PATCH v1 3/3] kernel/resource: cleanup and optimize iomem_is_exclusive() Message-ID: <37179df3-13d7-9b98-4cd8-13bb7f735129@redhat.com> Date: Thu, 12 Aug 2021 09:07:41 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Cc: Arnd Bergmann , "Michael S. Tsirkin" , Greg Kroah-Hartman , "Rafael J. Wysocki" , "linux-kernel@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "linux-mm@kvack.org" , Hanjun Guo , Andrew Morton , Andy Shevchenko , Dan Williams X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" T24gMTEuMDguMjEgMjI6NDcsIEFuZHkgU2hldmNoZW5rbyB3cm90ZToKPiAKPiAKPiBPbiBXZWRu ZXNkYXksIEF1Z3VzdCAxMSwgMjAyMSwgRGF2aWQgSGlsZGVuYnJhbmQgPGRhdmlkQHJlZGhhdC5j b20gCj4gPG1haWx0bzpkYXZpZEByZWRoYXQuY29tPj4gd3JvdGU6Cj4gCj4gICAgIExldCdzIGNs ZWFuIGl0IHVwIGEgYml0LCByZW1vdmluZyB0aGUgdW5uZWNlc3NhcnkgdXNhZ2Ugb2Ygcl9uZXh0 KCkgYnkKPiAgICAgbmV4dF9yZXNvdXJjZSgpLCBhbmQgdXNlIG5leHRfcmFuZ2VfcmVzb3VyY2Uo KSBpbiBjYXNlIHdlIGFyZSBub3QKPiAgICAgaW50ZXJlc3RlZCBpbiBhIGNlcnRhaW4gc3VidHJl ZS4KPiAKPiAgICAgU2lnbmVkLW9mZi1ieTogRGF2aWQgSGlsZGVuYnJhbmQgPGRhdmlkQHJlZGhh dC5jb20KPiAgICAgPG1haWx0bzpkYXZpZEByZWRoYXQuY29tPj4KPiAgICAgLS0tCj4gICAgICDC oGtlcm5lbC9yZXNvdXJjZS5jIHwgMTkgKysrKysrKysrKystLS0tLS0tLQo+ICAgICAgwqAxIGZp bGUgY2hhbmdlZCwgMTEgaW5zZXJ0aW9ucygrKSwgOCBkZWxldGlvbnMoLSkKPiAKPiAgICAgZGlm ZiAtLWdpdCBhL2tlcm5lbC9yZXNvdXJjZS5jIGIva2VybmVsL3Jlc291cmNlLmMKPiAgICAgaW5k ZXggMjkzOGNmNTIwY2EzLi5lYTg1M2EwNzVhODMgMTAwNjQ0Cj4gICAgIC0tLSBhL2tlcm5lbC9y ZXNvdXJjZS5jCj4gICAgICsrKyBiL2tlcm5lbC9yZXNvdXJjZS5jCj4gICAgIEBAIC0xNzU0LDkg KzE3NTQsOCBAQCBzdGF0aWMgaW50IHN0cmljdF9pb21lbV9jaGVja3M7Cj4gICAgICDCoCAqLwo+ ICAgICAgwqBib29sIGlvbWVtX2lzX2V4Y2x1c2l2ZSh1NjQgYWRkcikKPiAgICAgIMKgewo+ICAg ICAtwqAgwqAgwqAgwqBzdHJ1Y3QgcmVzb3VyY2UgKnAgPSAmaW9tZW1fcmVzb3VyY2U7Cj4gICAg ICvCoCDCoCDCoCDCoHN0cnVjdCByZXNvdXJjZSAqcDsKPiAgICAgIMKgIMKgIMKgIMKgIGJvb2wg ZXJyID0gZmFsc2U7Cj4gICAgIC3CoCDCoCDCoCDCoGxvZmZfdCBsOwo+ICAgICAgwqAgwqAgwqAg wqAgaW50IHNpemUgPSBQQUdFX1NJWkU7Cj4gCj4gICAgICDCoCDCoCDCoCDCoCBpZiAoIXN0cmlj dF9pb21lbV9jaGVja3MpCj4gICAgIEBAIC0xNzY1LDI3ICsxNzY0LDMxIEBAIGJvb2wgaW9tZW1f aXNfZXhjbHVzaXZlKHU2NCBhZGRyKQo+ICAgICAgwqAgwqAgwqAgwqAgYWRkciA9IGFkZHIgJiBQ QUdFX01BU0s7Cj4gCj4gICAgICDCoCDCoCDCoCDCoCByZWFkX2xvY2soJnJlc291cmNlX2xvY2sp Owo+ICAgICAtwqAgwqAgwqAgwqBmb3IgKHAgPSBwLT5jaGlsZDsgcCA7IHAgPSByX25leHQoTlVM TCwgcCwgJmwpKSB7Cj4gICAgICvCoCDCoCDCoCDCoGZvciAocCA9IGlvbWVtX3Jlc291cmNlLmNo aWxkOyBwIDspIHsKPiAKCkhpIEFuZHksCgo+IAo+IEkgY29uc2lkZXIgdGhlIG9yZGluYWwgcGFy dCBvZiBwIGluaXRpYWxpemF0aW9uIGlzIHNsaWdodGx5IGJldHRlciBhbmQgCj4gZG9uZSBvdXRz aWRlIG9mIHJlYWQgbG9jay4KPiAKPiBTb21ldGhpbmcgbGlrZQo+IHA9ICZpb21lbV9yZXMuLi47 Cj4gcmVhZCBsb2NrCj4gZm9yIChwID0gcC0+Y2hpbGQ7IC4uLikgewoKV2h5IHNob3VsZCB3ZSBj YXJlIGFib3V0IGRvaW5nIHRoYXQgb3V0c2lkZSBvZiB0aGUgbG9jaz8gVGhhdCBzbWVsbHMgCmxp a2UgYSBtaWNyby1vcHRpbWl6YXRpb24gdGhlIGNvbXBpbGVyIHdpbGwgbW9zdCBwcm9iYWJseSBv dmVyd3JpdGUgCmVpdGhlciB3YXkgYXMgdGhlIGFkZHJlc3Mgb2YgaW9tZW1fcmVzb3VyY2UgaXMg anVzdCBjb25zdGFudD8KCkFsc28sIGZvciBtZSBpdCdzIG11Y2ggbW9yZSByZWFkYWJsZSBhbmQg Y29tcGFjdCBpZiB3ZSBwZXJmb3JtIGEgc2luZ2xlIAppbml0aWFsaXphdGlvbiBpbnN0ZWFkIG9m IHR3byBzZXBhcmF0ZSBvbmVzIGluIHRoaXMgY2FzZS4KCldlJ3JlIHVzaW5nIHRoZSBwYXR0ZXJu IEkgdXNlIGluLCBmaW5kX25leHRfaW9tZW1fcmVzKCkgYW5kIApfX3JlZ2lvbl9pbnRlcnNlY3Rz KCksIHdoaWxlIHdlIHVzZSB0aGUgb2xkIHBhdHRlcm4gaW4gCmlvbWVtX21hcF9zYW5pdHlfY2hl Y2soKSwgd2hlcmUgd2UgYWxzbyB1c2UgdGhlIHNhbWUgdW5uZWNlc3NhcnkgCnJfbmV4dCgpIGNh bGwuCgpJIG1pZ2h0IGp1c3QgY2xlYW51cCBpb21lbV9tYXBfc2FuaXR5X2NoZWNrKCkgaW4gYSBz aW1pbGFyIHdheS4KCi0tIApUaGFua3MsCgpEYXZpZCAvIGRoaWxkZW5iCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5n IGxpc3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9s aXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vdmlydHVhbGl6YXRpb24=