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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E8D80C433F5 for ; Thu, 4 Nov 2021 15:06:35 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 80F4661216 for ; Thu, 4 Nov 2021 15:06:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 80F4661216 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:46970 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mieK2-0007gX-7v for qemu-devel@archiver.kernel.org; Thu, 04 Nov 2021 11:06:34 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51374) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mie89-0003Pt-PD for qemu-devel@nongnu.org; Thu, 04 Nov 2021 10:54:17 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:54813) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mie87-0006wK-Rp for qemu-devel@nongnu.org; Thu, 04 Nov 2021 10:54:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1636037655; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=p94Yp9hT0ZiVop2XyugpJj2jnVtBOkeJM12bjvwGUWE=; b=A2pVft0d5YbtVlCn5c1VSTtdI3kDeGbFJZMrrOg1AyLce17GnH5CumzRQMekRoqylX5/1R u1KXECW+VlJdGSpoeZEGgg3gz+qLEkorRrkRJDoygoKiP4agN1CbP3bdqdOe7vRmwou9du RNZ66BxaF0c/jRlNlW1BTVbYO7jtruo= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-182-Ij8Xe5V3OzmxRhIcGSTJJQ-1; Thu, 04 Nov 2021 10:54:12 -0400 X-MC-Unique: Ij8Xe5V3OzmxRhIcGSTJJQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1BEDF1007315; Thu, 4 Nov 2021 14:54:11 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id 264E46418A; Thu, 4 Nov 2021 14:54:10 +0000 (UTC) From: Emanuele Giuseppe Esposito To: qemu-block@nongnu.org Subject: [RFC PATCH v2 09/14] jobs: remove aiocontext locks since the functions are under BQL Date: Thu, 4 Nov 2021 10:53:29 -0400 Message-Id: <20211104145334.1346363-10-eesposit@redhat.com> In-Reply-To: <20211104145334.1346363-1-eesposit@redhat.com> References: <20211104145334.1346363-1-eesposit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eesposit@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Received-SPF: pass client-ip=170.10.133.124; envelope-from=eesposit@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.648, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-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: , Cc: Kevin Wolf , Fam Zheng , Vladimir Sementsov-Ogievskiy , Wen Congyang , Xie Changlong , Emanuele Giuseppe Esposito , Markus Armbruster , qemu-devel@nongnu.org, Hanna Reitz , Stefan Hajnoczi , Paolo Bonzini , John Snow Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" In preparation to the job_lock/unlock patch, remove these aiocontext locks. The main reason these two locks are removed here is because they are inside a loop iterating on the jobs list. Once the job_lock is added, it will have to protect the whole loop, wrapping also the aiocontext acquire/release. We don't want this, as job_lock can only be *wrapped by* the aiocontext lock, and not vice-versa, to avoid deadlocks. Signed-off-by: Emanuele Giuseppe Esposito --- blockdev.c | 4 ---- job-qmp.c | 4 ---- 2 files changed, 8 deletions(-) diff --git a/blockdev.c b/blockdev.c index d9bf842a81..67b55eec11 100644 --- a/blockdev.c +++ b/blockdev.c @@ -3719,15 +3719,11 @@ BlockJobInfoList *qmp_query_block_jobs(Error **errp) for (job = block_job_next(NULL); job; job = block_job_next(job)) { BlockJobInfo *value; - AioContext *aio_context; if (block_job_is_internal(job)) { continue; } - aio_context = blk_get_aio_context(job->blk); - aio_context_acquire(aio_context); value = block_job_query(job, errp); - aio_context_release(aio_context); if (!value) { qapi_free_BlockJobInfoList(head); return NULL; diff --git a/job-qmp.c b/job-qmp.c index 829a28aa70..a6774aaaa5 100644 --- a/job-qmp.c +++ b/job-qmp.c @@ -173,15 +173,11 @@ JobInfoList *qmp_query_jobs(Error **errp) for (job = job_next(NULL); job; job = job_next(job)) { JobInfo *value; - AioContext *aio_context; if (job_is_internal(job)) { continue; } - aio_context = job->aio_context; - aio_context_acquire(aio_context); value = job_query_single(job, errp); - aio_context_release(aio_context); if (!value) { qapi_free_JobInfoList(head); return NULL; -- 2.27.0