From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulrich Drepper Subject: Re: Kevent POSIX timers support. Date: Mon, 27 Nov 2006 10:20:50 -0800 Message-ID: <456B2C82.7040700@redhat.com> References: <20061120082500.GA25467@2ka.mipt.ru> <4562102B.5010503@redhat.com> <20061121095302.GA15210@2ka.mipt.ru> <45633049.2000209@redhat.com> <20061121174334.GA25518@2ka.mipt.ru> <20061121184605.GA7787@2ka.mipt.ru> <4563FE71.4040807@redhat.com> <20061122104416.GD11480@2ka.mipt.ru> <20061123085243.GA11575@2ka.mipt.ru> <456603E7.9090006@redhat.com> <20061124095052.GC13600@2ka.mipt.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: David Miller , Andrew Morton , netdev , Zach Brown , Christoph Hellwig , Chase Venters , Johann Borck , linux-kernel@vger.kernel.org, Jeff Garzik , Alexander Viro Return-path: Received: from mx1.redhat.com ([66.187.233.31]:62866 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S1757861AbWK0SVw (ORCPT ); Mon, 27 Nov 2006 13:21:52 -0500 To: Evgeniy Polyakov In-Reply-To: <20061124095052.GC13600@2ka.mipt.ru> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Evgeniy Polyakov wrote: >> We need to pass the data in the sigev_value meember of the struct=20 >> sigevent structure passed to timer_create to the caller. I don't se= e it=20 >> being done here nor when the timer is created. Do I miss something?= =20 >> The sigev_value value should be stored in the user/ptr member of str= uct=20 >> ukevent. >=20 > sigev_value was stored in k_itimer structure, I just do not know wher= e > to put it in the ukevent provided to userspace - it can be placed in > pointer value if you like. sigev_value is a union and the largest element is a pointer. So,=20 transporting the pointer value is sufficient and it should be passed up= =20 to the user in the ptr member of struct ukevent. --=20 =E2=9E=A7 Ulrich Drepper =E2=9E=A7 Red Hat, Inc. =E2=9E=A7 444 Castro S= t =E2=9E=A7 Mountain View, CA =E2=9D=96