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[174.21.143.238]) by smtp.gmail.com with ESMTPSA id g6sm740648pfb.164.2020.06.10.13.39.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Jun 2020 13:39:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/1VQEyGIT5SioB6kHr1I24ND+09JThHqu5Yl+UsE9Vk=; b=ReRT4OpbE2F7VnzIVlCibzaZIif7MzfWXFS7/+SXGR6ew5xiqe31TNe4qjjJTa7SQO eHBtRS30SFRUjKfC8GVFjiSMkAeRd6n2IZIIMs24m1lOHLIKQScQBSPNBzblSpvDyI1B K6LKI2xppQuao3ln+X6i13oRFngCgV+s5tC65PUhHM2DUbqM00k2NnqX8XSEs6Z39a6Z 3/BnyZIEr60l9b80f2HW1gPgn1khZU7XDCwW0mBXtKhNrOc1LvYDoyYaenfjuC7Jl60c tJ1vAl8MYd+gGwF2+wVH3RYUAzSc9Yan86o6hL/Hf+Qap7FSXHowZkWGylQuArEKkKXj PcZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/1VQEyGIT5SioB6kHr1I24ND+09JThHqu5Yl+UsE9Vk=; b=GprfeGtNEGSd94nUIb4mNHYdlzs8q5sJNEdlDYwjZkia54hRJOMaGGUd+GjxkBp/B6 sj75FFAbXyIxVBhKcHk/7sN4+8q5yWU85P/1t+bYm53PlqBMs38qnZCdSMqjYl5kYqoU wLAAv3EuqhE9iPpMbYWGP0Az0Ty6pHRNBjv88lLiHgghfMXz4jbRjDPoTrlmMuICfQlp OYHy9lQiGuSk3F2c3h1PuLlx9kurySSI/vVmPuYRY+R37DdK66M/b4qpR9H0XQdD6P80 Pe/wtNgza9EDm/TEc5sETvUEeeSf+S8eMD3Dt1a9ihZj6VYV3qaHS2k1P1J1UaBvdH3N uhPQ== X-Gm-Message-State: AOAM531sHaOOT3GUXQA9NlnzdwCRf2sbhSKoYJsn+VE5vm94a11Sm8aF ziQJYFJUe9CvDQZdZwQwnoqGwfeQj1s= X-Google-Smtp-Source: ABdhPJwFcOmIA7QqpS4W6l15Jt4KV5U+yLoNOOrVnTTqnR0gYc9lpoEP4EbqANnhhLM3/iPmJhcAxw== X-Received: by 2002:aa7:97bd:: with SMTP id d29mr4013253pfq.262.1591821586787; Wed, 10 Jun 2020 13:39:46 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 2/5] migration: fix xbzrle encoding rate calculation Date: Wed, 10 Jun 2020 13:39:39 -0700 Message-Id: <20200610203942.887374-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200610203942.887374-1-richard.henderson@linaro.org> References: <20200610203942.887374-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) 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=2607:f8b0:4864:20::442; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x442.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: Wei Wang , "Dr . David Alan Gilbert" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" From: Wei Wang It's reported an error of implicit conversion from "unsigned long" to "double" when compiling with Clang 10. Simply make the encoding rate 0 when the encoded_size is 0. Fixes: e460a4b1a4 Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Richard Henderson Reported-by: Richard Henderson Signed-off-by: Wei Wang Signed-off-by: Richard Henderson --- migration/ram.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/migration/ram.c b/migration/ram.c index 41cc530d9d..069b6e30bc 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -913,10 +913,8 @@ static void migration_update_rates(RAMState *rs, int64= _t end_time) unencoded_size =3D (xbzrle_counters.pages - rs->xbzrle_pages_prev)= * TARGET_PAGE_SIZE; encoded_size =3D xbzrle_counters.bytes - rs->xbzrle_bytes_prev; - if (xbzrle_counters.pages =3D=3D rs->xbzrle_pages_prev) { + if (xbzrle_counters.pages =3D=3D rs->xbzrle_pages_prev || !encoded= _size) { xbzrle_counters.encoding_rate =3D 0; - } else if (!encoded_size) { - xbzrle_counters.encoding_rate =3D UINT64_MAX; } else { xbzrle_counters.encoding_rate =3D unencoded_size / encoded_siz= e; } --=20 2.25.1