From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C3F65C10F25 for ; Fri, 6 Mar 2020 19:54:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F98420675 for ; Fri, 6 Mar 2020 19:54:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=szeredi.hu header.i=@szeredi.hu header.b="a/IuF7wJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726738AbgCFTyX (ORCPT ); Fri, 6 Mar 2020 14:54:23 -0500 Received: from mail-il1-f193.google.com ([209.85.166.193]:34360 "EHLO mail-il1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725873AbgCFTyX (ORCPT ); Fri, 6 Mar 2020 14:54:23 -0500 Received: by mail-il1-f193.google.com with SMTP id c8so2756224ilm.1 for ; Fri, 06 Mar 2020 11:54:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=szeredi.hu; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=l7Yr6iThBvFiVFuCMIOneOYkdq7rfICUbWrdUVOauj8=; b=a/IuF7wJJcvi7R3raqpSjmvjHoyW1rzHNoNPJ0cJfivQZWXrYKMcvZM30/HL9FrbcH pMF1QkRGD4uJZxewNiWfwBxXriuNcwx61quGyA/Rro1MDFlI11ET8p2IalfTci7JStaH fJaiUxC+ZIwj0qt1rArbYbZBCTn2dwh4ihQ08= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=l7Yr6iThBvFiVFuCMIOneOYkdq7rfICUbWrdUVOauj8=; b=pvkd8vczXSeSkLSqARt+/ydNxY8lhAQtwGf/HNZqVZCXligwdNSSzyvw975JkaYXJ9 tv4SuHqMHaYXnW5vGD7PxN5muatfQbRpr/B148srlQP8kHRoaikAXADk08EFcdHh0nQo 6+MUHRwWwYPVwUR/ld7FA+I2NfjGpTzkHXZouMsIQjCcCRU+j7lBYe1EHcXXKdgk2d1u HVuzDGw7eNhOMFNhs4D9ydz1a1qRTl99A3ndquEAbRdcTZU8uuKNj9eY3vei+EHfii2W ZV3KBcLXkg78h7Tz3So6cUz+9Bflt1xmMma/Y3oWY9Bpog9U2RMZh5l6oY2rEjHceOgU Tkqg== X-Gm-Message-State: ANhLgQ3fZ3woJee36pkq/tWlBPlW90VFxaSCxwkCRQZ6o4dA8D1Wxeso HEq9AE96XWHwTpVRarMkanDId/1MibkGdfRovV56UQ== X-Google-Smtp-Source: ADFU+vtbpbl0w2HqWSs8biDjZfjr/C5cekqgPQWRzbyVdoi71n4jrNADZpiqZ9BIxofq9rqM9Tu5nWBqs8hbde/f8Dw= X-Received: by 2002:a05:6e02:f43:: with SMTP id y3mr4766895ilj.174.1583524462599; Fri, 06 Mar 2020 11:54:22 -0800 (PST) MIME-Version: 1.0 References: <1582556135.3384.4.camel@HansenPartnership.com> <1582644535.3361.8.camel@HansenPartnership.com> <20200228155244.k4h4hz3dqhl7q7ks@wittgenstein> <107666.1582907766@warthog.procyon.org.uk> <0403cda7345e34c800eec8e2870a1917a8c07e5c.camel@themaw.net> <20200306162549.GA28467@miu.piliscsaba.redhat.com> <20200306194322.GY23230@ZenIV.linux.org.uk> In-Reply-To: <20200306194322.GY23230@ZenIV.linux.org.uk> From: Miklos Szeredi Date: Fri, 6 Mar 2020 20:54:10 +0100 Message-ID: Subject: Re: [PATCH 00/17] VFS: Filesystem information and notifications [ver #17] To: Al Viro Cc: Ian Kent , David Howells , Christian Brauner , James Bottomley , Steven Whitehouse , Miklos Szeredi , Christian Brauner , Jann Horn , "Darrick J. Wong" , Linux API , linux-fsdevel , lkml , Greg Kroah-Hartman Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 6, 2020 at 8:43 PM Al Viro wrote: > > On Fri, Mar 06, 2020 at 05:25:49PM +0100, Miklos Szeredi wrote: > > On Tue, Mar 03, 2020 at 08:46:09AM +0100, Miklos Szeredi wrote: > > > > > > I'm doing a patch. Let's see how it fares in the face of all these > > > preconceptions. > > > > Here's a first cut. Doesn't yet have superblock info, just mount info. > > Probably has rough edges, but appears to work. > > For starters, you have just made namespace_sem held over copy_to_user(). > This is not going to fly. Where? Thanks, Miklos