From patchwork Tue Sep 27 09:58:44 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Lieven X-Patchwork-Id: 9351639 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5D62B6077A for ; Tue, 27 Sep 2016 09:59:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E888291A3 for ; Tue, 27 Sep 2016 09:59:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 430DF291A6; Tue, 27 Sep 2016 09:59:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 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 mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0EFCB291A3 for ; Tue, 27 Sep 2016 09:59:51 +0000 (UTC) Received: from localhost ([::1]:49208 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bopB0-0007tD-7E for patchwork-qemu-devel@patchwork.kernel.org; Tue, 27 Sep 2016 05:59:50 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50251) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bopAQ-0007pF-TG for qemu-devel@nongnu.org; Tue, 27 Sep 2016 05:59:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bopAP-00079T-SI for qemu-devel@nongnu.org; Tue, 27 Sep 2016 05:59:14 -0400 Received: from mx01.kamp.de ([82.141.2.16]:43423) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bopAP-00078X-IB for qemu-devel@nongnu.org; Tue, 27 Sep 2016 05:59:13 -0400 Received: (qmail 18896 invoked by uid 89); 27 Sep 2016 09:59:12 -0000 Received: from [195.62.97.28] by client-16-kamp (envelope-from , uid 89) with qmail-scanner-2010/03/19-MF (clamdscan: 0.99.2/22259. avast: 1.2.2/16092600. spamassassin: 3.4.1. 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Processed in 0.41396 secs); 27 Sep 2016 09:59:12 -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); 27 Sep 2016 09:59:09 -0000 X-GL_Whitelist: yes Received: (qmail 12462 invoked from network); 27 Sep 2016 09:58:58 -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; 27 Sep 2016 09:58:58 -0000 Received: by lieven-pc (Postfix, from userid 1000) id 9B5CD20842; Tue, 27 Sep 2016 11:58:58 +0200 (CEST) From: Peter Lieven To: qemu-devel@nongnu.org Date: Tue, 27 Sep 2016 11:58:44 +0200 Message-Id: <1474970326-10271-6-git-send-email-pl@kamp.de> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1474970326-10271-1-git-send-email-pl@kamp.de> References: <1474970326-10271-1-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 V9 5/7] 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Peter Lieven Reviewed-by: Eric Blake --- 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 a5bcb7e..f6fc49a 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; } CoroutineSigAltStack; @@ -143,7 +144,6 @@ static void coroutine_trampoline(int signal) Coroutine *qemu_coroutine_new(void) { - const size_t stack_size = COROUTINE_STACK_SIZE; CoroutineSigAltStack *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_) { CoroutineSigAltStack *co = DO_UPCAST(CoroutineSigAltStack, base, co_); - g_free(co->stack); + qemu_free_stack(co->stack, co->stack_size); g_free(co); }