From nobody Fri Nov 14 19:49:13 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; dmarc=pass(p=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1760469641; cv=none; d=zohomail.com; s=zohoarc; b=MUGthx7okOWt1L5OaKBVbTt72eRP0hfasgp0D4NhozbhdKUi1yF5HAW4neAXpQ7ywN75Bo8x5FCmby9tXNKSL80sQtU5WL9vyukcApuqo03OH08FJst5OA+4k1C4W2w7nTZ/t4CUsAb38EQzG0zgny3M1wdFEXGHhG437C0u+Ms= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1760469641; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=V6i0nVanfDujpYn//cEXKWgfyzyv69/ASXLJkx8rKto=; b=LOA4br3CGOG8ToKc5qtduZg0GOWyO7yLdBHfTelyyZ46ivTShxXb/MJF7D4MCRNFH18mqAlLsYtkWEidCq2vjhNiY3yf+itISQbf1qIlvQJvO2/26Y0ouERTqYQr9Hb3HabIWcL6VILcVPTk3klPRoNFQRcTXXKkR14KG6rW2I8= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1760469641807348.81465924797544; Tue, 14 Oct 2025 12:20:41 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1v8kZ0-00061l-7s; Tue, 14 Oct 2025 15:20:02 -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 1v8kYw-0005zp-VE for qemu-devel@nongnu.org; Tue, 14 Oct 2025 15:19:59 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1v8kYr-0007Yp-V9 for qemu-devel@nongnu.org; Tue, 14 Oct 2025 15:19:57 -0400 Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-674-ZQbf-LLYOCKFmFpYg18YRw-1; Tue, 14 Oct 2025 15:19:50 -0400 Received: by mail-qk1-f200.google.com with SMTP id af79cd13be357-856c1aa079bso86834485a.0 for ; Tue, 14 Oct 2025 12:19:50 -0700 (PDT) Received: from x1.com ([142.188.210.50]) by smtp.gmail.com with ESMTPSA id af79cd13be357-884a22744f2sm1256602585a.44.2025.10.14.12.19.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Oct 2025 12:19:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1760469592; 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=V6i0nVanfDujpYn//cEXKWgfyzyv69/ASXLJkx8rKto=; b=iXnLYAACMpE/jKhLXftYzN46oXOmmsJohZheX4QCjZRs4yRJxNxUzi1+wMZx27PiDVrBO/ 6KA3isSSAtb8S1WbIERRap+1TweVchLtSY6mP//BQ8AbIgceHHD+0xmtJW5PGFWDBUQqJC LymOwoW8SllOpFnRqXSX0LRkprVHQKs= X-MC-Unique: ZQbf-LLYOCKFmFpYg18YRw-1 X-Mimecast-MFC-AGG-ID: ZQbf-LLYOCKFmFpYg18YRw_1760469590 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760469589; x=1761074389; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=V6i0nVanfDujpYn//cEXKWgfyzyv69/ASXLJkx8rKto=; b=u2WBaBhIHJCSojqhPq/7nHsVW8Q2pVYbXLe5A17REFnAuEnX3kk3jq1+uMwQoqG3wP B1a6tjobxki3JRoYJXyYMtF3nRI1tkL7Ae8SxtvyGeywgU+tUTLGJPqcuYbNAJXbFM63 pBlxJ+NE/8CSvTijgYHqbHb3/RspkPcdv+fqq+GOMS8ARPL4ej4m4pEV5GM1N1ZI4fIL lcTq3VKk4zHllpCxBTsNkj54vPprsutIvEUl7JEPKnTBGMEn+lvJgxt1z8zqnuWMhe2B WR4dqjdhyhdUPA40yvil9yIiPspWm73SkVj3UVPTdk0qzG7GYATf7Ne0n89ZxvdvVYdC JbpA== X-Gm-Message-State: AOJu0YwBtK6fzz+eGSyfafZ9S/755Pr2xokcOWg38xYAfb6oUnwnOWgQ eeaMfD4Q+VOq0+/gQCnqUfQ4ZT+3IeUN4wjqD8KgVuD7diFXqjiAjVooFDs8HVIv247Ic7XnXAq tpkfUBgb8BgrjLoIAWkSPfo+jJ/0P7tofc99rRm/E9aTn31drndv/5zfDbYLJRtPfnL4nfQtlEi JfyguY2O8LIHK4WpYYONPGLeTXXdACQ5CmWZswHg== X-Gm-Gg: ASbGncs1L3YG2d8Echzv0Sqm2DS6cEVnopQXeXA2ihHclM1X0w/QG2RHx8zIiXkEvem 1objj9kp55Ed9Y0L1SRwPdDvrqCk9adgcHmLKTvbMgkHAyspS9870rxWxjEJ8msDgObN9XBf+24 CQWa5Q7kEfPnNjDpwa9pz92WpyUPZyJ8h+2h964z/PCW70IcEn8RU5VcFV0xHjHZdCf4SWGna0s mfm5x/iA5vkxuodY2Iknm6Sxsc31Joe0qW4i82/rNvANCtzKua5PEhyxu1Ld0skP3uTg5xU32rP 2N4xR6YziGG2QNV0tZI0/7gJCUW1vg== X-Received: by 2002:a05:620a:1a06:b0:836:974d:978e with SMTP id af79cd13be357-8820d666600mr3452113085a.41.1760469589400; Tue, 14 Oct 2025 12:19:49 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGF1YMSO5fjIviqhqlyWlgg7NrWaBHjGPprZFtXYgRhdhQRs6TkX0J25lpM04xubNqmQAIDWA== X-Received: by 2002:a05:620a:1a06:b0:836:974d:978e with SMTP id af79cd13be357-8820d666600mr3452108785a.41.1760469588862; Tue, 14 Oct 2025 12:19:48 -0700 (PDT) From: Peter Xu To: qemu-devel@nongnu.org Cc: Peter Maydell , Paolo Bonzini , Stefan Hajnoczi , peterx@redhat.com, Richard Henderson , "Emilio G . Cota" Subject: [PATCH v2 1/3] qht: Zero-initialize qht_map Date: Tue, 14 Oct 2025 15:19:42 -0400 Message-ID: <20251014191944.2225735-2-peterx@redhat.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251014191944.2225735-1-peterx@redhat.com> References: <20251014191944.2225735-1-peterx@redhat.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=170.10.133.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1760469643858154100 Content-Type: text/plain; charset="utf-8" QEMU almost always do this across the tree except QHT. This prepares for rcu to track double free. Signed-off-by: Peter Xu Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- util/qht.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/util/qht.c b/util/qht.c index 208c2f4b32..872d9f9cec 100644 --- a/util/qht.c +++ b/util/qht.c @@ -441,7 +441,7 @@ static struct qht_map *qht_map_create(size_t n_buckets) struct qht_map *map; size_t i; =20 - map =3D g_malloc(sizeof(*map)); + map =3D g_malloc0(sizeof(*map)); map->n_buckets =3D n_buckets; =20 map->n_added_buckets =3D 0; --=20 2.50.1