From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Sustrik Subject: Re: [PATCH 1/1] eventfd: implementation of EFD_MASK flag Date: Fri, 08 Feb 2013 13:43:04 +0100 Message-ID: <5114F2D8.5020300@250bpm.com> References: <1360219292-19754-1-git-send-email-sustrik@250bpm.com> <20130207144433.527ef024.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Alexander Viro , Sha Zhengju , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: Andrew Morton Return-path: In-Reply-To: <20130207144433.527ef024.akpm@linux-foundation.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On 07/02/13 23:44, Andrew Morton wrote: > That's a nice changelog but it omitted a critical thing: why do you > think the kernel needs this feature? What's the value and use case for > being able to poll these descriptors? To address the question, I've written down detailed description of the challenges of the network protocol development in user space and how the proposed feature addresses the problems. It's too long to fit into ChangeLog, but it may be worth reading when trying to judge the merit of the patch. It can be found here: http://www.250bpm.com/blog:16 Martin