From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758805AbZEKKOg (ORCPT ); Mon, 11 May 2009 06:14:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758614AbZEKKNM (ORCPT ); Mon, 11 May 2009 06:13:12 -0400 Received: from mail-fx0-f158.google.com ([209.85.220.158]:41364 "EHLO mail-fx0-f158.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758354AbZEKKNI (ORCPT ); Mon, 11 May 2009 06:13:08 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=p/p0+wnGJHSzPqOtF1ynBA6jAQBhKgDO3G9hFxAYZ75oYE5lPA8peu+GSMNCPQfVsK CZgYkSeaUJAf7gxipLFOFO1RDfYYnBdX949Sf7Bg2Y0wTnkQSn+gfXeN9GBzPkiB9BhM heGQYZNs56nwJhU2AOd4/GJ1uch4lOEKxsgVM= From: Vitaly Mayatskikh To: Andrew Morton Cc: Oleg Nesterov , Ingo Molnar , Roland McGrath , linux-kernel@vger.kernel.org Subject: [PATCH 5/5] Use wait_copyout() in wait_task_continued() Date: Mon, 11 May 2009 12:12:44 +0200 Message-Id: <1242036759-4025-6-git-send-email-v.mayatskih@gmail.com> X-Mailer: git-send-email 1.6.2.2 In-Reply-To: <1242036759-4025-1-git-send-email-v.mayatskih@gmail.com> References: <1242036759-4025-1-git-send-email-v.mayatskih@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org All copy-paste getrusage() and put_user() code in wait_task_* functions is replaced by call to wait_copyout() It makes no sense to do conditional siginfo's fill, wait_copyout() knows how to handle it right. Signed-off-by: Vitaly Mayatskikh --- kernel/exit.c | 23 ++++++++++------------- 1 files changed, 10 insertions(+), 13 deletions(-) diff --git a/kernel/exit.c b/kernel/exit.c index 1ff490d..690a1a6 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1416,19 +1416,16 @@ static int wait_task_continued(struct wait_opts *wo, struct task_struct *p) get_task_struct(p); read_unlock(&tasklist_lock); - if (!wo->wo_info) { - retval = wo->wo_rusage - ? getrusage(p, RUSAGE_BOTH, wo->wo_rusage) : 0; - put_task_struct(p); - if (!retval && wo->wo_stat) - retval = put_user(0xffff, wo->wo_stat); - if (!retval) - retval = pid; - } else { - retval = wait_noreap_copyout(wo, p, pid, uid, - CLD_CONTINUED, SIGCONT); - BUG_ON(retval == 0); - } + retval = wait_copyout(wo, p, pid, uid, + CLD_CONTINUED, SIGCONT, SIGCHLD); + put_task_struct(p); + + if (!retval && wo->wo_stat) + retval = put_user(0xffff, wo->wo_stat); + if (!retval) + retval = pid; + + BUG_ON(retval == 0); return retval; } -- 1.6.2.2