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[35.229.150.155]) by smtp.gmail.com with ESMTPSA id h24-v6sm23502641pfk.113.2018.08.11.14.00.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 11 Aug 2018 14:00:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=FQkHD0iF4ZCPUwLAsj1ShX86lwX7Htt016788pFu0iI=; b=PFxyjeqfK9uYnfvUVQuBhAshiTyQwFanwnQ5KtDX6VJYiaIEVUOhLuntYKBIzm9qzB Uh5KOdRwHv74j9OXmvobZNfnRlQ2pmaUzJOlgNs9Y1P27hz2nTaVWgNS24Xo4tHqanXf UDPOVqIYZFy4ldwrABj2kF6+bKgDlGj6tlhRBS4C9hx2ijdEonJ6y4AZ8qVKgRGABOob awjLF8EY5T8FrC9iB0QzxpQ1+y8WAlLUfBhDYlwhP2Gf1ZNRX3W07+JFCD+yqDhHbJUx 97Lw6d2cLm0zTRBfMQ5/jwrngC/jmwR6dPw7IqSM8lgL4zDI3IBxF47QTmsPwYjE0Nu5 5moA== 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; bh=FQkHD0iF4ZCPUwLAsj1ShX86lwX7Htt016788pFu0iI=; b=Bh8CRWsGyveVO60SmhmyY5Gl6yvafv3iuU6YoL2Y2RVvgUWzGk7uKD3+lIlpvCECOS 8sTZM/PbuEX5XN7XNZ19/86YijCZBa4hT1MNtG9gg9m2apvB4GFdZvP750cb6Yx+SJKQ XTIrlc4Ti3H0bBL+XenMaXmyh9DHPkOw+SVDuwraloys5NJMK/yj9Or2kBlBEFUMGLOK 4Lw546jOk2GiHg3YnFW873kFn987yId8FtSky9aI3s2CSeradCX1XvrN+ns9NJaRE9IR ooYpbVOiou7CR8ICHy38fU6ebP9Bl3+aJmNo9P00fPWqoIcbHkZYS1Tj+4dc8HkaR+UO 6bcQ== X-Gm-Message-State: AOUpUlFoXbOuP4h6czPzfiYR7qyAM8oKc5L4uzJfAe8azJvYjXHhqinL tSaX8OfdX3b0keirQ33gwEjtR3sQ X-Google-Smtp-Source: AA+uWPwnUBdTBFvnVbDeJfKgUagCDS8rMdgTs0bJJzSeQjtXpy9owfLgoh0W/uHtoXhW/xl3qsucDg== X-Received: by 2002:a62:8d84:: with SMTP id p4-v6mr12796371pfk.251.1534021252661; Sat, 11 Aug 2018 14:00:52 -0700 (PDT) From: Zhang Chen To: qemu-devel@nongnu.org, Paolo Bonzini , Juan Quintela , "Dr . David Alan Gilbert" , Jason Wang , Eric Blake , Markus Armbruster Date: Sun, 12 Aug 2018 04:59:18 +0800 Message-Id: <20180811205924.4113-15-zhangckid@gmail.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180811205924.4113-1-zhangckid@gmail.com> References: <20180811205924.4113-1-zhangckid@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::543 Subject: [Qemu-devel] [PATCH V11 14/20] COLO: flush host dirty ram from cache X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Zhang Chen , zhanghailiang , Li Zhijian , Zhang Chen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDMRC_1 RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: zhanghailiang Don't need to flush all VM's ram from cache, only flush the dirty pages since last checkpoint Signed-off-by: Li Zhijian Signed-off-by: Zhang Chen Signed-off-by: Zhang Chen Signed-off-by: zhanghailiang Reviewed-by: Dr. David Alan Gilbert --- migration/ram.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/migration/ram.c b/migration/ram.c index b4cbcf783f..734e944a21 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3588,6 +3588,7 @@ int colo_init_ram_cache(void) } ram_state =3D g_new0(RAMState, 1); ram_state->migration_dirty_pages =3D 0; + memory_global_dirty_log_start(); =20 return 0; =20 @@ -3609,6 +3610,7 @@ void colo_release_ram_cache(void) { RAMBlock *block; =20 + memory_global_dirty_log_stop(); RAMBLOCK_FOREACH_MIGRATABLE(block) { g_free(block->bmap); block->bmap =3D NULL; @@ -3852,6 +3854,13 @@ static void colo_flush_ram_cache(void) void *src_host; unsigned long offset =3D 0; =20 + memory_global_dirty_log_sync(); + rcu_read_lock(); + RAMBLOCK_FOREACH_MIGRATABLE(block) { + migration_bitmap_sync_range(ram_state, block, 0, block->used_lengt= h); + } + rcu_read_unlock(); + trace_colo_flush_ram_cache_begin(ram_state->migration_dirty_pages); rcu_read_lock(); block =3D QLIST_FIRST_RCU(&ram_list.blocks); --=20 2.17.GIT