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[99.254.121.117]) by smtp.gmail.com with ESMTPSA id af79cd13be357-798abc07501sm449643685a.89.2024.06.17.11.15.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Jun 2024 11:15:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718648141; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wzpRVcMoHJuiYGTTUkqQjk7ezIIqhok8HbPaC8esF3E=; b=NGCQpu00Ea7Y9k9G9tG8OiV7l9vORl3tKUNlmj5fk5HQUQWr4KIxEiGWUgQGnsdYDyCKQU tYCeHjFyjlYKSo0pCFpuUnf7IT0VTy8yRmOWE5zdPHdtnZ+8HHZ2e/A4bhpTIDmgUIRnIM VMIGZE180VNJvBhEISQMPtB4ofnhr0o= X-MC-Unique: uvCyQBXeN2aQwzhJ_YhMfw-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718648139; x=1719252939; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=wzpRVcMoHJuiYGTTUkqQjk7ezIIqhok8HbPaC8esF3E=; b=B3zL8coh+JQDmIbDRLHL7BeV525DcPXu1KScqUozm0IganzvU4hZKmbOH5bwg91F7m eDFF4oRa0t9Owzh+qGD6Wf3owLhlg05Epo+ZA7KTwS2IPaEZ0Dm2BL65p5eUw16jTotH jp5R4iT524Fhh6SXmNA0hM7EUt8MrqB6b3ykuaGDSXVdn98uLqdlo9MGhYDSF3HwhD1V Rxi1vimOo763OlMs8u+N3taIl++efrb1IQrrta+RnszPXMSEb57MY7kump+ZoPuaiRiU ZhHTa1EAROiOvCnW1AXaGSQ2qEPHY4CsEuHHUr5YPu5pVDPaY2qskKYvsApoKSuw1Gry D1cA== X-Gm-Message-State: AOJu0Yy0lgTiv6YG1L67/CwICTqO3Mq9B/h2mhdaBbbEUzF/6Vyu0iUG yvr6T2hjo1jAvGg4DQOE1xiWk+HS798s+fV+pm59BP2YpzRPpvqHLDQnQ4VuytGuVMyBZC7kIF9 IFKWq0up0ONseXZcGSCL6UKy8H6exzbKhm7qUL0W/Xi8hnWA0hYxaABmhYxZSp+6OVRaGRucNjE puvgYpQb5KtuqFqJ94pVWDD0h4JG88owRezg== X-Received: by 2002:a05:620a:4143:b0:79b:a816:94a4 with SMTP id af79cd13be357-79ba81696efmr13774285a.7.1718648138858; Mon, 17 Jun 2024 11:15:38 -0700 (PDT) X-Google-Smtp-Source: AGHT+IF7sBaRIfIps3Np7Rt/g9UGAi6zcND7K/RdpvZpNNRHjHyaIHqOuiaaIJbnGuMweoxcZVHZ+Q== X-Received: by 2002:a05:620a:4143:b0:79b:a816:94a4 with SMTP id af79cd13be357-79ba81696efmr13769785a.7.1718648138169; Mon, 17 Jun 2024 11:15:38 -0700 (PDT) From: Peter Xu To: qemu-devel@nongnu.org Cc: Thomas Huth , Markus Armbruster , Laurent Vivier , Fabiano Rosas , Eric Blake , Prasad Pandit , peterx@redhat.com, Jiri Denemark , Bandan Das Subject: [PATCH v2 01/10] migration/multifd: Avoid the final FLUSH in complete() Date: Mon, 17 Jun 2024 14:15:25 -0400 Message-ID: <20240617181534.1425179-2-peterx@redhat.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240617181534.1425179-1-peterx@redhat.com> References: <20240617181534.1425179-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: temperror (zohomail.com: Error in retrieving data from DNS) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.148, 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1718648241037100001 Content-Type: text/plain; charset="utf-8" We always do the flush when finishing one round of scan, and during complete() phase we should scan one more round making sure no dirty page existed. In that case we shouldn't need one explicit FLUSH at the end of complete(), as when reaching there all pages should have been flushed. Reviewed-by: Fabiano Rosas Tested-by: Fabiano Rosas Signed-off-by: Peter Xu --- migration/ram.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index ceea586b06..edec1a2d07 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3300,10 +3300,6 @@ static int ram_save_complete(QEMUFile *f, void *opaq= ue) } } =20 - if (migrate_multifd() && !migrate_multifd_flush_after_each_section() && - !migrate_mapped_ram()) { - qemu_put_be64(f, RAM_SAVE_FLAG_MULTIFD_FLUSH); - } qemu_put_be64(f, RAM_SAVE_FLAG_EOS); return qemu_fflush(f); } --=20 2.45.0