From nobody Sat Nov 15 19:43:27 2025 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 Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1748265856216204.51447880432113; Mon, 26 May 2025 06:24:16 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uJXnB-00017r-OE; Mon, 26 May 2025 09:23:01 -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 1uJXma-0000Ew-5b; Mon, 26 May 2025 09:22:24 -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 1uJXmV-0000Jd-Ul; Mon, 26 May 2025 09:22:22 -0400 Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 02871445F6; Mon, 26 May 2025 15:21:49 +0200 (CEST) From: Fiona Ebner To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, kwolf@redhat.com, den@virtuozzo.com, andrey.drobyshev@virtuozzo.com, hreitz@redhat.com, stefanha@redhat.com, eblake@redhat.com, jsnow@redhat.com, vsementsov@yandex-team.ru, xiechanglong.d@gmail.com, wencongyang2@huawei.com, berto@igalia.com, fam@euphon.net, ari@tuxera.com Subject: [PATCH v3 19/24] block: mark bdrv_drained_begin() and friends as GRAPH_UNLOCKED Date: Mon, 26 May 2025 15:21:35 +0200 Message-Id: <20250526132140.1641377-20-f.ebner@proxmox.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250526132140.1641377-1-f.ebner@proxmox.com> References: <20250526132140.1641377-1-f.ebner@proxmox.com> 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=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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1748265858070116600 Content-Type: text/plain; charset="utf-8" All of bdrv_drain_all_begin(), bdrv_drain_all() and bdrv_drained_begin() poll and are not allowed to be called with the block graph lock held. Mark the function as such. Suggested-by: Kevin Wolf Signed-off-by: Fiona Ebner --- Changes in v3: * Also mark bdrv_drain_all_begin() and bdrv_drain_all() as GRAPH_UNLOCKED. include/block/block-global-state.h | 4 ++-- include/block/block-io.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/include/block/block-global-state.h b/include/block/block-globa= l-state.h index 91f249b5ad..84a2a4ecd5 100644 --- a/include/block/block-global-state.h +++ b/include/block/block-global-state.h @@ -192,10 +192,10 @@ int bdrv_inactivate_all(void); =20 int bdrv_flush_all(void); void bdrv_close_all(void); -void bdrv_drain_all_begin(void); +void GRAPH_UNLOCKED bdrv_drain_all_begin(void); void bdrv_drain_all_begin_nopoll(void); void bdrv_drain_all_end(void); -void bdrv_drain_all(void); +void GRAPH_UNLOCKED bdrv_drain_all(void); =20 void bdrv_aio_cancel(BlockAIOCB *acb); =20 diff --git a/include/block/block-io.h b/include/block/block-io.h index b99cc98d26..4cf83fb367 100644 --- a/include/block/block-io.h +++ b/include/block/block-io.h @@ -431,7 +431,7 @@ bdrv_drain_poll(BlockDriverState *bs, BdrvChild *ignore= _parent, * * This function can be recursive. */ -void bdrv_drained_begin(BlockDriverState *bs); +void GRAPH_UNLOCKED bdrv_drained_begin(BlockDriverState *bs); =20 /** * bdrv_do_drained_begin_quiesce: --=20 2.39.5