From patchwork Mon Sep 26 11:44:30 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Lieven X-Patchwork-Id: 675121 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3sjMmQ0KKkz9s9c for ; Mon, 26 Sep 2016 21:53:10 +1000 (AEST) Received: from localhost ([::1]:43558 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1boUT5-0007Jn-IC for incoming@patchwork.ozlabs.org; Mon, 26 Sep 2016 07:53:07 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44924) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1boULZ-00086K-NR for qemu-devel@nongnu.org; Mon, 26 Sep 2016 07:45:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1boULX-0002vr-OC for qemu-devel@nongnu.org; Mon, 26 Sep 2016 07:45:20 -0400 Received: from mx01.kamp.de ([82.141.2.16]:60595) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1boULX-0002vZ-EF for qemu-devel@nongnu.org; Mon, 26 Sep 2016 07:45:19 -0400 Received: (qmail 18595 invoked by uid 89); 26 Sep 2016 11:44:48 -0000 Received: from [195.62.97.28] by client-16-kamp (envelope-from , uid 89) with qmail-scanner-2010/03/19-MF (clamdscan: 0.99.2/22254. avast: 1.2.2/16092600. spamassassin: 3.4.1. Clear:RC:1(195.62.97.28):. Processed in 0.386191 secs); 26 Sep 2016 11:44:48 -0000 Received: from smtp.kamp.de (HELO submission.kamp.de) ([195.62.97.28]) by mx01.kamp.de with ESMTPS (DHE-RSA-AES256-GCM-SHA384 encrypted); 26 Sep 2016 11:44:45 -0000 X-GL_Whitelist: yes Received: (qmail 8287 invoked from network); 26 Sep 2016 11:44:34 -0000 Received: from lieven-pc.kamp-intra.net (HELO lieven-pc) (relay@kamp.de@::ffff:172.21.12.60) by submission.kamp.de with ESMTPS (DHE-RSA-AES256-GCM-SHA384 encrypted) ESMTPA; 26 Sep 2016 11:44:34 -0000 Received: by lieven-pc (Postfix, from userid 1000) id AAC2720873; Mon, 26 Sep 2016 13:44:34 +0200 (CEST) From: Peter Lieven To: qemu-devel@nongnu.org Date: Mon, 26 Sep 2016 13:44:30 +0200 Message-Id: <1474890272-22952-5-git-send-email-pl@kamp.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1474890272-22952-1-git-send-email-pl@kamp.de> References: <1474890272-22952-1-git-send-email-pl@kamp.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 82.141.2.16 Subject: [Qemu-devel] [PATCH V8 4/6] coroutine-sigaltstack: use helper for allocating stack memory 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: kwolf@redhat.com, peter.maydell@linaro.org, mst@redhat.com, armbru@redhat.com, Peter Lieven , dgilbert@redhat.com, mreitz@redhat.com, pbonzini@redhat.com, rth@twiddle.net Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Peter Lieven --- util/coroutine-sigaltstack.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/util/coroutine-sigaltstack.c b/util/coroutine-sigaltstack.c index 9c2854c..d9c7f66 100644 --- a/util/coroutine-sigaltstack.c +++ b/util/coroutine-sigaltstack.c @@ -33,6 +33,7 @@ typedef struct { Coroutine base; void *stack; + size_t stack_size; sigjmp_buf env; } CoroutineUContext; @@ -143,7 +144,6 @@ static void coroutine_trampoline(int signal) Coroutine *qemu_coroutine_new(void) { - const size_t stack_size = COROUTINE_STACK_SIZE; CoroutineUContext *co; CoroutineThreadState *coTS; struct sigaction sa; @@ -164,7 +164,8 @@ Coroutine *qemu_coroutine_new(void) */ co = g_malloc0(sizeof(*co)); - co->stack = g_malloc(stack_size); + co->stack_size = COROUTINE_STACK_SIZE; + co->stack = qemu_alloc_stack(&co->stack_size); co->base.entry_arg = &old_env; /* stash away our jmp_buf */ coTS = coroutine_get_thread_state(); @@ -189,7 +190,7 @@ Coroutine *qemu_coroutine_new(void) * Set the new stack. */ ss.ss_sp = co->stack; - ss.ss_size = stack_size; + ss.ss_size = co->stack_size; ss.ss_flags = 0; if (sigaltstack(&ss, &oss) < 0) { abort(); @@ -253,7 +254,7 @@ void qemu_coroutine_delete(Coroutine *co_) { CoroutineUContext *co = DO_UPCAST(CoroutineUContext, base, co_); - g_free(co->stack); + qemu_free_stack(co->stack, co->stack_size); g_free(co); }