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GET /api/1.1/patches/2224900/?format=api
{ "id": 2224900, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2224900/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260419130139.15554-6-alexander@mihalicyn.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260419130139.15554-6-alexander@mihalicyn.com>", "date": "2026-04-19T13:01:36", "name": "[v6,5/8] hw/nvme: unmap req->sg earlier in nvme_enqueue_req_completion", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "7ea320aeb58fb4461afbb6c7f58fd6c4d5814240", "submitter": { "id": 81630, "url": "http://patchwork.ozlabs.org/api/1.1/people/81630/?format=api", "name": "Alexander Mikhalitsyn", "email": "alexander@mihalicyn.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260419130139.15554-6-alexander@mihalicyn.com/mbox/", "series": [ { "id": 500500, "url": "http://patchwork.ozlabs.org/api/1.1/series/500500/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500500", "date": "2026-04-19T13:01:32", "name": "hw/nvme: add basic live migration support", "version": 6, "mbox": "http://patchwork.ozlabs.org/series/500500/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224900/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224900/checks/", "tags": {}, "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n secure) header.d=mihalicyn.com header.i=@mihalicyn.com header.a=rsa-sha256\n header.s=mihalicyn header.b=idPypAc9;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=mail-wr1-x429.google.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@futurfusion.io>\n\nInstead of unmapping req->sg in nvme_post_cqes(), we can do it earlier in\nnvme_enqueue_req_completion(). When req completion is enqueued we don't\nneed to access req->sg anymore. We only care about req->sq, req->cqe and\nreq->status.\n\nSigned-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@futurfusion.io>\n---\n hw/nvme/ctrl.c | 3 ++-\n 1 file changed, 2 insertions(+), 1 deletion(-)", "diff": "diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c\nindex d9bf32bff2c..1ff91493b60 100644\n--- a/hw/nvme/ctrl.c\n+++ b/hw/nvme/ctrl.c\n@@ -1534,7 +1534,6 @@ static void nvme_post_cqes(void *opaque)\n QTAILQ_REMOVE(&cq->req_list, req, entry);\n \n nvme_inc_cq_tail(cq);\n- nvme_sg_unmap(&req->sg);\n \n if (QTAILQ_EMPTY(&sq->req_list) && !nvme_sq_empty(sq)) {\n qemu_bh_schedule(sq->bh);\n@@ -1564,6 +1563,8 @@ static void nvme_enqueue_req_completion(NvmeCQueue *cq, NvmeRequest *req)\n req->status, req->cmd.opcode);\n }\n \n+ nvme_sg_unmap(&req->sg);\n+\n QTAILQ_REMOVE(&req->sq->out_req_list, req, entry);\n QTAILQ_INSERT_TAIL(&cq->req_list, req, entry);\n \n", "prefixes": [ "v6", "5/8" ] }