From nobody Tue Feb 10 01:31:15 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1605862645; cv=none; d=zohomail.com; s=zohoarc; b=ax2agg6NLZVeCTmEuWLQm8q6a7mwNjd8jpnLImMBBo6S3LSiqK+AoakbUtry8Ry4p7rGZ0XmhPGIxsODFutYcK4qahhbJ5+ZPv34r5ZPpERRrUkhvMFAHt3Qo2UfS/Rzj2WcoFP1RBnPxL7gkdm4cEi4Iu2l0nSVXaON2Hcdack= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1605862645; h=Content-Type:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=QJVEt1Sb/Y2mqI5Z8hNBHjHUki/iQBkRi0p0tC3pPIs=; b=U04KNnKgB2bCfKg+8dsACBLpURBJ6/f0DfFyJiQOtlpcqZPZABDh+jAI+Ley3hdphEebAfT3dMZZWPu7PT1wSfzDHy1hM+X33D00KwaemjrJseabANO/9M44g8275qhmz//tkIUZf24LOgtxFCgKte69XAzHEnKpWz0bwldS4Do= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1605862645878468.97774884497846; Fri, 20 Nov 2020 00:57:25 -0800 (PST) Received: from localhost ([::1]:36334 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kg2EN-0000td-1T for importer@patchew.org; Fri, 20 Nov 2020 03:57:24 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:56498) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kg2AQ-0005p2-Ex; Fri, 20 Nov 2020 03:53:18 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:2534) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kg2AN-0001Uj-Oh; Fri, 20 Nov 2020 03:53:17 -0500 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4Ccr0W0Yh1zhdXB; Fri, 20 Nov 2020 16:52:43 +0800 (CST) Received: from DESKTOP-5IS4806.china.huawei.com (10.174.187.37) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Fri, 20 Nov 2020 16:52:52 +0800 From: Keqian Zhu To: , Paolo Bonzini , "Dr . David Alan Gilbert" Subject: [RFC PATCH 2/2] ramlist: Resize dirty bitmap blocks after remove ramblock Date: Fri, 20 Nov 2020 16:51:57 +0800 Message-ID: <20201120085157.7136-3-zhukeqian1@huawei.com> X-Mailer: git-send-email 2.8.4.windows.1 In-Reply-To: <20201120085157.7136-1-zhukeqian1@huawei.com> References: <20201120085157.7136-1-zhukeqian1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.174.187.37] X-CFilter-Loop: Reflected 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=45.249.212.191; envelope-from=zhukeqian1@huawei.com; helo=szxga05-in.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: wanghaibin.wang@huawei.com, qemu-arm@nongnu.org, Keqian Zhu Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use the new "dirty_bitmap_resize" interface to reduce dirty bitmap blocks after we remove a ramblock from ramlist. Signed-off-by: Keqian Zhu --- softmmu/physmem.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/softmmu/physmem.c b/softmmu/physmem.c index f6ff78378e..2a17e0a89a 100644 --- a/softmmu/physmem.c +++ b/softmmu/physmem.c @@ -2131,6 +2131,8 @@ static void reclaim_ramblock(RAMBlock *block) =20 void qemu_ram_free(RAMBlock *block) { + ram_addr_t old_ram_size, new_ram_size; + if (!block) { return; } @@ -2140,12 +2142,18 @@ void qemu_ram_free(RAMBlock *block) } =20 qemu_mutex_lock_ramlist(); + + old_ram_size =3D last_ram_page(); QLIST_REMOVE_RCU(block, next); + new_ram_size =3D last_ram_page(); + dirty_bitmap_resize(old_ram_size, new_ram_size); + ram_list.mru_block =3D NULL; /* Write list before version */ smp_wmb(); ram_list.version++; call_rcu(block, reclaim_ramblock, rcu); + qemu_mutex_unlock_ramlist(); } =20 --=20 2.23.0