Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752709AbaLSXpv (ORCPT ); Fri, 19 Dec 2014 18:45:51 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:44124 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751462AbaLSXpu (ORCPT ); Fri, 19 Dec 2014 18:45:50 -0500 Date: Fri, 19 Dec 2014 15:45:48 -0800 From: Andrew Morton To: Minchan Kim Cc: Ganesh Mahendran , ngupta@vflare.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] mm/zsmalloc: add statistics support Message-Id: <20141219154548.3aa4cc02b3322f926aa4c1d6@linux-foundation.org> In-Reply-To: <20141219233937.GA11975@blaptop> References: <1418993719-14291-1-git-send-email-opensource.ganesh@gmail.com> <20141219143244.1e5fabad8b6733204486f5bc@linux-foundation.org> <20141219233937.GA11975@blaptop> X-Mailer: Sylpheed 3.4.0beta7 (GTK+ 2.24.23; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 20 Dec 2014 08:39:37 +0900 Minchan Kim wrote: > Then, we should fix debugfs_create_dir can return errno to propagate the error > to end user who can know it was failed ENOMEM or EEXIST. Impractical. Every caller of every debugfs interface will need to be changed! It's really irritating and dumb. What we're supposed to do is to optionally report the failure, then ignore it. This patch appears to be OK in that respect. -- 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/