From mboxrd@z Thu Jan 1 00:00:00 1970 From: OGAWA Hirofumi Subject: Re: [PATCH 4/7] xfs: Implement fallocate query support mode Date: Tue, 19 Sep 2017 12:28:03 +0900 Message-ID: <8760cfbc58.fsf@mail.parknet.co.jp> References: <1505749947-26360-1-git-send-email-lczerner@redhat.com> <1505749947-26360-5-git-send-email-lczerner@redhat.com> <20170918175651.GA7937@infradead.org> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20170918175651.GA7937@infradead.org> (Christoph Hellwig's message of "Mon, 18 Sep 2017 10:56:51 -0700") Sender: linux-fsdevel-owner@vger.kernel.org To: Christoph Hellwig Cc: Lukas Czerner , linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-api@vger.kernel.org List-Id: linux-api@vger.kernel.org Christoph Hellwig writes: I myself Acked-by: OGAWA Hirofumi to [5/7] fat part though, > That being said, I really detest adding weird query modes to random > syscalls. We should expose capabilities through the interface that > was designed for such things: (f)pathconf, as there are a lot more > important parameters we currently fail to expose to userspace to > start with. This is true. For example, max link count. And it might be able to use for fs's bug/issue detection too (in past, userland has to add workaround for all cases, because noway to detect the buggy or not). Thanks. -- OGAWA Hirofumi