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Wed, 24 Jun 2020 10:02:56 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org, Peter Maydell Subject: [PULL 08/12] block/nvme: don't access CQE after moving cq.head Date: Wed, 24 Jun 2020 11:02:06 +0100 Message-Id: <20200624100210.59975-9-stefanha@redhat.com> In-Reply-To: <20200624100210.59975-1-stefanha@redhat.com> References: <20200624100210.59975-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Received-SPF: pass client-ip=205.139.110.120; envelope-from=stefanha@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/24 03:27:53 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , Sergio Lopez , Eduardo Habkost , qemu-block@nongnu.org, Max Reitz , Stefan Hajnoczi , Cleber Rosa , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" RG8gbm90IGFjY2VzcyBhIENRRSBhZnRlciBpbmNyZW1lbnRpbmcgcS0+Y3EuaGVhZCBhbmQgcmVs ZWFzaW5nIHEtPmxvY2suCkl0IGlzIHVubGlrZWx5IHRoYXQgdGhpcyBjYXVzZXMgcHJvYmxlbXMg aW4gcHJhY3RpY2UgYnV0IGl0J3MgYSBsYXRlbnQKYnVnLgoKVGhlIHJlYXNvbiB3aHkgaXQgc2hv dWxkIGJlIHNhZmUgYXQgdGhlIG1vbWVudCBpcyB0aGF0IGNvbXBsZXRpb24KcHJvY2Vzc2luZyBp cyBub3QgcmUtZW50cmFudCBhbmQgdGhlIENRIGRvb3JiZWxsIGlzbid0IHdyaXR0ZW4gdW50aWwg dGhlCmVuZCBvZiBudm1lX3Byb2Nlc3NfY29tcGxldGlvbigpLgoKTWFrZSB0aGlzIGNoYW5nZSBu b3cgYmVjYXVzZSBRRU1VIGV4cGVjdHMgY29tcGxldGlvbiBwcm9jZXNzaW5nIHRvIGJlCnJlLWVu dHJhbnQgYW5kIGxhdGVyIHBhdGNoZXMgd2lsbCBkbyB0aGF0LgoKU2lnbmVkLW9mZi1ieTogU3Rl ZmFuIEhham5vY3ppIDxzdGVmYW5oYUByZWRoYXQuY29tPgpSZXZpZXdlZC1ieTogU2VyZ2lvIExv cGV6IDxzbHBAcmVkaGF0LmNvbT4KUmV2aWV3ZWQtYnk6IFBoaWxpcHBlIE1hdGhpZXUtRGF1ZMOp IDxwaGlsbWRAcmVkaGF0LmNvbT4KTWVzc2FnZS1pZDogMjAyMDA2MTcxMzIyMDEuMTgzMjE1Mi00 LXN0ZWZhbmhhQHJlZGhhdC5jb20KU2lnbmVkLW9mZi1ieTogU3RlZmFuIEhham5vY3ppIDxzdGVm YW5oYUByZWRoYXQuY29tPgotLS0KIGJsb2NrL252bWUuYyB8IDUgKysrKy0KIDEgZmlsZSBjaGFu Z2VkLCA0IGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKCmRpZmYgLS1naXQgYS9ibG9jay9u dm1lLmMgYi9ibG9jay9udm1lLmMKaW5kZXggZDU2N2VjZTNmNC4uMzQ0ODkzODExYSAxMDA2NDQK LS0tIGEvYmxvY2svbnZtZS5jCisrKyBiL2Jsb2NrL252bWUuYwpAQCAtMzIxLDExICszMjEsMTQg QEAgc3RhdGljIGJvb2wgbnZtZV9wcm9jZXNzX2NvbXBsZXRpb24oQkRSVk5WTWVTdGF0ZSAqcywg TlZNZVF1ZXVlUGFpciAqcSkKICAgICBxLT5idXN5ID0gdHJ1ZTsKICAgICBhc3NlcnQocS0+aW5m bGlnaHQgPj0gMCk7CiAgICAgd2hpbGUgKHEtPmluZmxpZ2h0KSB7CisgICAgICAgIGludCByZXQ7 CiAgICAgICAgIGludDE2X3QgY2lkOworCiAgICAgICAgIGMgPSAoTnZtZUNxZSAqKSZxLT5jcS5x dWV1ZVtxLT5jcS5oZWFkICogTlZNRV9DUV9FTlRSWV9CWVRFU107CiAgICAgICAgIGlmICgobGUx Nl90b19jcHUoYy0+c3RhdHVzKSAmIDB4MSkgPT0gcS0+Y3FfcGhhc2UpIHsKICAgICAgICAgICAg IGJyZWFrOwogICAgICAgICB9CisgICAgICAgIHJldCA9IG52bWVfdHJhbnNsYXRlX2Vycm9yKGMp OwogICAgICAgICBxLT5jcS5oZWFkID0gKHEtPmNxLmhlYWQgKyAxKSAlIE5WTUVfUVVFVUVfU0la RTsKICAgICAgICAgaWYgKCFxLT5jcS5oZWFkKSB7CiAgICAgICAgICAgICBxLT5jcV9waGFzZSA9 ICFxLT5jcV9waGFzZTsKQEAgLTM0NCw3ICszNDcsNyBAQCBzdGF0aWMgYm9vbCBudm1lX3Byb2Nl c3NfY29tcGxldGlvbihCRFJWTlZNZVN0YXRlICpzLCBOVk1lUXVldWVQYWlyICpxKQogICAgICAg ICBwcmVxLT5idXN5ID0gZmFsc2U7CiAgICAgICAgIHByZXEtPmNiID0gcHJlcS0+b3BhcXVlID0g TlVMTDsKICAgICAgICAgcWVtdV9tdXRleF91bmxvY2soJnEtPmxvY2spOwotICAgICAgICByZXEu Y2IocmVxLm9wYXF1ZSwgbnZtZV90cmFuc2xhdGVfZXJyb3IoYykpOworICAgICAgICByZXEuY2Io cmVxLm9wYXF1ZSwgcmV0KTsKICAgICAgICAgcWVtdV9tdXRleF9sb2NrKCZxLT5sb2NrKTsKICAg ICAgICAgcS0+aW5mbGlnaHQtLTsKICAgICAgICAgcHJvZ3Jlc3MgPSB0cnVlOwotLSAKMi4yNi4y Cgo=