From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 80F73CA0EE8 for ; Wed, 17 Sep 2025 11:56:46 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uyqlK-0008Tm-VT; Wed, 17 Sep 2025 07:55:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uyqkx-0007hU-1U; Wed, 17 Sep 2025 07:55:28 -0400 Received: from proxmox-new.maurer-it.com ([94.136.29.106]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uyqkv-0004bm-Ao; Wed, 17 Sep 2025 07:55:26 -0400 Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 1E86C4DC0E; Wed, 17 Sep 2025 13:55:20 +0200 (CEST) From: Fiona Ebner To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, fam@euphon.net, stefanha@redhat.com, hreitz@redhat.com, kwolf@redhat.com Subject: [PATCH v2 0/5] block: refresh filter parents when child was resized Date: Wed, 17 Sep 2025 13:54:47 +0200 Message-ID: <20250917115509.401015-1-f.ebner@proxmox.com> X-Mailer: git-send-email 2.47.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1758110111400 Received-SPF: pass client-ip=94.136.29.106; envelope-from=f.ebner@proxmox.com; helo=proxmox-new.maurer-it.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Changes in v2: * Check for BDRV_CHILD_FILTERED rather than bs->drv->is_filter which is more generic and for example, also covers the case when the child of a 'raw' node is resized. * Expand commit message for main patch, i.e. 3/5. * Add test for resizing the filtered 'file' node of a 'raw' node. Resizing a node below a filter would result in the filter still reporting the old size. Implement a 'resize' callback for the child_of_bds class, that refreshes filter parents recursively. Fiona Ebner (5): include/block/block_int-common: document when resize callback is used block: make bdrv_co_parent_cb_resize() a proper IO API function block: implement 'resize' callback for child_of_bds class iotests: add test for resizing a node below filters iotests: add test for resizing a 'file' node below a 'raw' node block.c | 12 +++ block/io.c | 9 +-- include/block/block_int-common.h | 5 +- include/block/block_int-io.h | 6 ++ tests/qemu-iotests/tests/resize-below-filter | 73 +++++++++++++++++++ .../tests/resize-below-filter.out | 5 ++ tests/qemu-iotests/tests/resize-below-raw | 53 ++++++++++++++ tests/qemu-iotests/tests/resize-below-raw.out | 5 ++ 8 files changed, 161 insertions(+), 7 deletions(-) create mode 100755 tests/qemu-iotests/tests/resize-below-filter create mode 100644 tests/qemu-iotests/tests/resize-below-filter.out create mode 100755 tests/qemu-iotests/tests/resize-below-raw create mode 100644 tests/qemu-iotests/tests/resize-below-raw.out -- 2.47.2