From nobody Tue Feb 10 09:15:56 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 152646537713238.55688260580871; Wed, 16 May 2018 03:09:37 -0700 (PDT) Received: from localhost ([::1]:38388 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fItNE-0004lQ-Kz for importer@patchew.org; Wed, 16 May 2018 06:09:32 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37536) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fItM6-0004GY-H1 for qemu-devel@nongnu.org; Wed, 16 May 2018 06:08:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fItM5-0002FZ-GH for qemu-devel@nongnu.org; Wed, 16 May 2018 06:08:22 -0400 Received: from [45.249.212.255] (port=40334 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fItLw-0002Au-PE; Wed, 16 May 2018 06:08:13 -0400 Received: from dggeml406-hub.china.huawei.com (unknown [172.30.72.54]) by Forcepoint Email with ESMTP id 9D9DB67FF0537; Wed, 16 May 2018 17:21:47 +0800 (CST) Received: from localhost.localdomain (10.175.104.211) by dggeml406-hub.china.huawei.com (10.3.17.50) with Microsoft SMTP Server id 14.3.382.0; Wed, 16 May 2018 17:21:39 +0800 From: Jie Wang To: , , , Date: Wed, 16 May 2018 15:09:04 +0800 Message-ID: <1526454544-3146-1-git-send-email-wangjie88@huawei.com> X-Mailer: git-send-email 1.8.3.1 MIME-Version: 1.0 X-Originating-IP: [10.175.104.211] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 45.249.212.255 Subject: [Qemu-devel] [PATCH v3] iothread: fix epollfd leak in the process of delIOThread X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: wu.wubin@huawei.com, wangjie88@huawei.com, qemu-devel@nongnu.org, qemu-block@nongnu.org, eric.fangyi@huawei.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: w00251574 When we call addIOThread, the epollfd created in aio_context_setup, but not close it in the process of delIOThread, so the epollfd will leak. Signed-off-by: Jie Wang --- include/block/aio.h | 8 ++++++++ util/aio-posix.c | 9 +++++++++ util/aio-win32.c | 4 ++++ util/async.c | 1 + 4 files changed, 22 insertions(+) diff --git a/include/block/aio.h b/include/block/aio.h index a1d6b9e249..ae6f354e6c 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -554,6 +554,14 @@ static inline bool in_aio_context_home_thread(AioConte= xt *ctx) */ void aio_context_setup(AioContext *ctx); =20 +/** + * aio_context_destroy: + * @ctx: the aio context + * + * Destroy the aio context. + */ +void aio_context_destroy(AioContext *ctx); + /** * aio_context_set_poll_params: * @ctx: the aio context diff --git a/util/aio-posix.c b/util/aio-posix.c index d8f0cb4af8..0ade2c7791 100644 --- a/util/aio-posix.c +++ b/util/aio-posix.c @@ -713,6 +713,15 @@ void aio_context_setup(AioContext *ctx) #endif } =20 +void aio_context_destroy(AioContext *ctx) +{ +#ifdef CONFIG_EPOLL_CREATE1 + if (ctx->epollfd >=3D 0) { + close(ctx->epollfd); + } +#endif +} + void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns, int64_t grow, int64_t shrink, Error **err= p) { diff --git a/util/aio-win32.c b/util/aio-win32.c index a67b00c6ad..e676a8d9b2 100644 --- a/util/aio-win32.c +++ b/util/aio-win32.c @@ -407,6 +407,10 @@ void aio_context_setup(AioContext *ctx) { } =20 +void aio_context_destroy(AioContext *ctx) +{ +} + void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns, int64_t grow, int64_t shrink, Error **err= p) { diff --git a/util/async.c b/util/async.c index 4dd9d95a9e..03f62787f2 100644 --- a/util/async.c +++ b/util/async.c @@ -298,6 +298,7 @@ aio_ctx_finalize(GSource *source) qemu_rec_mutex_destroy(&ctx->lock); qemu_lockcnt_destroy(&ctx->list_lock); timerlistgroup_deinit(&ctx->tlg); + aio_context_destroy(ctx); } =20 static GSourceFuncs aio_source_funcs =3D { --=20 2.15.0.windows.1