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Wed, 17 Jun 2020 13:22:09 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PATCH v2 1/7] block/nvme: poll queues without q->lock Date: Wed, 17 Jun 2020 14:21:55 +0100 Message-Id: <20200617132201.1832152-2-stefanha@redhat.com> In-Reply-To: <20200617132201.1832152-1-stefanha@redhat.com> References: <20200617132201.1832152-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: base64 Received-SPF: pass client-ip=205.139.110.61; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/17 02:02:46 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 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, MIME_BASE64_TEXT=1.741, 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 , qemu-block@nongnu.org, Max Reitz , Stefan Hajnoczi , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" QSBsb3Qgb2YgQ1BVIHRpbWUgaXMgc3BlbnQgc2ltcGx5IGxvY2tpbmcvdW5sb2NraW5nIHEtPmxv Y2sgZHVyaW5nCnBvbGxpbmcuIENoZWNrIGZvciBjb21wbGV0aW9uIG91dHNpZGUgdGhlIGxvY2sg dG8gbWFrZSBxLT5sb2NrIGRpc2FwcGVhcgpmcm9tIHRoZSBwcm9maWxlLgoKU2lnbmVkLW9mZi1i eTogU3RlZmFuIEhham5vY3ppIDxzdGVmYW5oYUByZWRoYXQuY29tPgotLS0KIGJsb2NrL252bWUu YyB8IDEyICsrKysrKysrKysrKwogMSBmaWxlIGNoYW5nZWQsIDEyIGluc2VydGlvbnMoKykKCmRp ZmYgLS1naXQgYS9ibG9jay9udm1lLmMgYi9ibG9jay9udm1lLmMKaW5kZXggZWIyZjU0ZGQ5ZC4u ZTQzNzVlYzI0NSAxMDA2NDQKLS0tIGEvYmxvY2svbnZtZS5jCisrKyBiL2Jsb2NrL252bWUuYwpA QCAtNTEyLDYgKzUxMiwxOCBAQCBzdGF0aWMgYm9vbCBudm1lX3BvbGxfcXVldWVzKEJEUlZOVk1l U3RhdGUgKnMpCiAKICAgICBmb3IgKGkgPSAwOyBpIDwgcy0+bnJfcXVldWVzOyBpKyspIHsKICAg ICAgICAgTlZNZVF1ZXVlUGFpciAqcSA9IHMtPnF1ZXVlc1tpXTsKKyAgICAgICAgY29uc3Qgc2l6 ZV90IGNxZV9vZmZzZXQgPSBxLT5jcS5oZWFkICogTlZNRV9DUV9FTlRSWV9CWVRFUzsKKyAgICAg ICAgTnZtZUNxZSAqY3FlID0gKE52bWVDcWUgKikmcS0+Y3EucXVldWVbY3FlX29mZnNldF07CisK KyAgICAgICAgLyoKKyAgICAgICAgICogRG8gYW4gZWFybHkgY2hlY2sgZm9yIGNvbXBsZXRpb25z LiBxLT5sb2NrIGlzbid0IG5lZWRlZCBiZWNhdXNlCisgICAgICAgICAqIG52bWVfcHJvY2Vzc19j b21wbGV0aW9uKCkgb25seSBydW5zIGluIHRoZSBldmVudCBsb29wIHRocmVhZCBhbmQKKyAgICAg ICAgICogY2Fubm90IHJhY2Ugd2l0aCBpdHNlbGYuCisgICAgICAgICAqLworICAgICAgICBpZiAo KGxlMTZfdG9fY3B1KGNxZS0+c3RhdHVzKSAmIDB4MSkgPT0gcS0+Y3FfcGhhc2UpIHsKKyAgICAg ICAgICAgIGNvbnRpbnVlOworICAgICAgICB9CisKICAgICAgICAgcWVtdV9tdXRleF9sb2NrKCZx LT5sb2NrKTsKICAgICAgICAgd2hpbGUgKG52bWVfcHJvY2Vzc19jb21wbGV0aW9uKHMsIHEpKSB7 CiAgICAgICAgICAgICAvKiBLZWVwIHBvbGxpbmcgKi8KLS0gCjIuMjYuMgoK