Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751156AbWHPMgF (ORCPT ); Wed, 16 Aug 2006 08:36:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751149AbWHPMgE (ORCPT ); Wed, 16 Aug 2006 08:36:04 -0400 Received: from mail-gw1.turkuamk.fi ([195.148.208.125]:22159 "EHLO mail-gw1.turkuamk.fi") by vger.kernel.org with ESMTP id S1751156AbWHPMgD (ORCPT ); Wed, 16 Aug 2006 08:36:03 -0400 Message-ID: <44E3118A.20402@kolumbus.fi> Date: Wed, 16 Aug 2006 15:37:30 +0300 From: =?ISO-8859-1?Q?Mika_Penttil=E4?= User-Agent: Thunderbird 1.5.0.5 (X11/20060808) MIME-Version: 1.0 To: Evgeniy Polyakov Cc: lkml Subject: Re: [take10 1/2] kevent: Core files. References: <11557316932803@2ka.mipt.ru> In-Reply-To: <11557316932803@2ka.mipt.ru> X-MIMETrack: Itemize by SMTP Server on marconi.hallinto.turkuamk.fi/TAMK(Release 6.5.4FP2 HF462|May 23, 2006) at 16.08.2006 15:35:59, Serialize by Router on marconi.hallinto.turkuamk.fi/TAMK(Release 6.5.4FP2 HF462|May 23, 2006) at 16.08.2006 15:35:59, Serialize complete at 16.08.2006 15:35:59, Itemize by SMTP Server on notes.hallinto.turkuamk.fi/TAMK(Release 6.5.4FP2 HF462|May 23, 2006) at 16.08.2006 15:35:59, Serialize by Router on notes.hallinto.turkuamk.fi/TAMK(Release 6.5.4FP2 HF462|May 23, 2006) at 16.08.2006 15:36:02, Serialize complete at 16.08.2006 15:36:02 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 872 Lines: 30 +void kevent_user_ring_add_event(struct kevent *k) +{ + unsigned int pidx, off; + struct kevent_mring *ring, *copy_ring; + + ring = (struct kevent_mring *)k->user->pring[0]; + + pidx = ring->index/KEVENTS_ON_PAGE; + off = ring->index%KEVENTS_ON_PAGE; + + copy_ring = (struct kevent_mring *)k->user->pring[pidx]; + + copy_ring->event[off].id.raw[0] = k->event.id.raw[0]; + copy_ring->event[off].id.raw[1] = k->event.id.raw[1]; + copy_ring->event[off].ret_flags = k->event.ret_flags; + + if (++ring->index >= KEVENT_MAX_EVENTS) + ring->index = 0; +} Can you assume that the page at pidx is already allocated and why? --Mika - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/