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 C5294C5B543 for ; Wed, 4 Jun 2025 18:03:48 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uMsMK-0002Qb-8n; Wed, 04 Jun 2025 13:57:04 -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 1uMsM9-0002HS-JI for qemu-devel@nongnu.org; Wed, 04 Jun 2025 13:56:53 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uMsM3-0000Qp-VA for qemu-devel@nongnu.org; Wed, 04 Jun 2025 13:56:53 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1749059794; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hpBOemLw89s1YEvMfiiEo6gzsUEg6nnjFmlfZjhCRuU=; b=QrqVKYIPUeYAPeGQSugV9+iWmZPsBIwuzmKGsWNMw/SnlLSVP4lPORA2njnz2OEqhEq0dr 1Cckg/1aooLuU8bNm/6z45XSPAuNi/UAKHkROAGNlyID1pYs5S6EpekW2do37qpSJshWcl 8U9HzFGqORaOiZ/L4lq0jSja5WET1wI= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-495-1fHvybZyPCKGmXjeaeyI1g-1; Wed, 04 Jun 2025 13:56:31 -0400 X-MC-Unique: 1fHvybZyPCKGmXjeaeyI1g-1 X-Mimecast-MFC-AGG-ID: 1fHvybZyPCKGmXjeaeyI1g_1749059790 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id A84B91800357; Wed, 4 Jun 2025 17:56:30 +0000 (UTC) Received: from merkur.fritz.box (unknown [10.44.34.43]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 2FE6218003FD; Wed, 4 Jun 2025 17:56:28 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [PULL 06/24] block: mark change_aio_ctx() callback and instances as GRAPH_RDLOCK(_PTR) Date: Wed, 4 Jun 2025 19:55:55 +0200 Message-ID: <20250604175613.344113-7-kwolf@redhat.com> In-Reply-To: <20250604175613.344113-1-kwolf@redhat.com> References: <20250604175613.344113-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.128, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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 From: Fiona Ebner This is a small step in preparation to mark bdrv_drained_begin() as GRAPH_UNLOCKED. More concretely, it is in preparation to move the drain out of bdrv_change_aio_context() and marking that function as GRAPH_RDLOCK. Signed-off-by: Fiona Ebner Reviewed-by: Kevin Wolf Message-ID: <20250530151125.955508-7-f.ebner@proxmox.com> Signed-off-by: Kevin Wolf --- include/block/block_int-common.h | 6 +++--- block.c | 7 ++++--- block/block-backend.c | 6 +++--- blockjob.c | 6 +++--- 4 files changed, 13 insertions(+), 12 deletions(-) diff --git a/include/block/block_int-common.h b/include/block/block_int-common.h index 2982dd3118..37466c7841 100644 --- a/include/block/block_int-common.h +++ b/include/block/block_int-common.h @@ -983,9 +983,9 @@ struct BdrvChildClass { bool backing_mask_protocol, Error **errp); - bool (*change_aio_ctx)(BdrvChild *child, AioContext *ctx, - GHashTable *visited, Transaction *tran, - Error **errp); + bool GRAPH_RDLOCK_PTR (*change_aio_ctx)(BdrvChild *child, AioContext *ctx, + GHashTable *visited, + Transaction *tran, Error **errp); /* * I/O API functions. These functions are thread-safe. diff --git a/block.c b/block.c index 7207978e53..01144c895e 100644 --- a/block.c +++ b/block.c @@ -1226,9 +1226,10 @@ static int bdrv_child_cb_inactivate(BdrvChild *child) return 0; } -static bool bdrv_child_cb_change_aio_ctx(BdrvChild *child, AioContext *ctx, - GHashTable *visited, Transaction *tran, - Error **errp) +static bool GRAPH_RDLOCK +bdrv_child_cb_change_aio_ctx(BdrvChild *child, AioContext *ctx, + GHashTable *visited, Transaction *tran, + Error **errp) { BlockDriverState *bs = child->opaque; return bdrv_change_aio_context(bs, ctx, visited, tran, errp); diff --git a/block/block-backend.c b/block/block-backend.c index a402db13f2..6a6949edeb 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -136,9 +136,9 @@ static void blk_root_drained_end(BdrvChild *child); static void blk_root_change_media(BdrvChild *child, bool load); static void blk_root_resize(BdrvChild *child); -static bool blk_root_change_aio_ctx(BdrvChild *child, AioContext *ctx, - GHashTable *visited, Transaction *tran, - Error **errp); +static bool GRAPH_RDLOCK +blk_root_change_aio_ctx(BdrvChild *child, AioContext *ctx, GHashTable *visited, + Transaction *tran, Error **errp); static char *blk_root_get_parent_desc(BdrvChild *child) { diff --git a/blockjob.c b/blockjob.c index 32007f31a9..34185d7715 100644 --- a/blockjob.c +++ b/blockjob.c @@ -144,9 +144,9 @@ static TransactionActionDrv change_child_job_context = { .clean = g_free, }; -static bool child_job_change_aio_ctx(BdrvChild *c, AioContext *ctx, - GHashTable *visited, Transaction *tran, - Error **errp) +static bool GRAPH_RDLOCK +child_job_change_aio_ctx(BdrvChild *c, AioContext *ctx, GHashTable *visited, + Transaction *tran, Error **errp) { BlockJob *job = c->opaque; BdrvStateChildJobContext *s; -- 2.49.0