Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751520AbaJRSpe (ORCPT ); Sat, 18 Oct 2014 14:45:34 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:51744 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751077AbaJRSpd (ORCPT ); Sat, 18 Oct 2014 14:45:33 -0400 Date: Sat, 18 Oct 2014 19:45:28 +0100 From: Al Viro To: Miklos Szeredi Cc: Linus Torvalds , Maxim Patlasov , Anand Avati , Linux Kernel Mailing List , Michael j Theall , fuse-devel Subject: Re: [PATCH 0/5] fuse: handle release synchronously (v4) Message-ID: <20141018184528.GG7996@ZenIV.linux.org.uk> References: <542BE551.1010705@parallels.com> <543F9E75.2090509@parallels.com> <20141017085509.GE5011@tucsk.piliscsaba.szeredi.hu> <20141018182454.GF7996@ZenIV.linux.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141018182454.GF7996@ZenIV.linux.org.uk> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Oct 18, 2014 at 07:24:54PM +0100, Al Viro wrote: > On Sat, Oct 18, 2014 at 08:01:13PM +0200, Miklos Szeredi wrote: > > > And what you don't get is that there's a deep difference between those > > and the /proc file access case. > > > > And the difference is that one is done because of an explicit action > > by the holder of the open file. And the other is done by some random > > process doing non-invasive examination of the holder of the open-file. > > Such as ls -l /proc/*/fd/*? That will give you the same transient EBUSY > from umount, if it hits the right moment... stat -L /proc/*/fd/*, that is... -- 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/