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_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 F1F10C43331 for ; Fri, 3 Apr 2020 12:05:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B60AD2078C for ; Fri, 3 Apr 2020 12:05:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="rdInxIDZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403856AbgDCMFh (ORCPT ); Fri, 3 Apr 2020 08:05:37 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:46284 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728133AbgDCMFh (ORCPT ); Fri, 3 Apr 2020 08:05:37 -0400 Received: by mail-wr1-f65.google.com with SMTP id j17so8138330wru.13; Fri, 03 Apr 2020 05:05:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=4xz6spXtxxXdjkDuCcyDHWPj+MoNvcOatFi0zEd+zC0=; b=rdInxIDZH8FzPi57P97yKIhOoXuVFtuqAb8PKguS0X1qKjdDr+qAG1PciOTqJxQ+Tz A1MNbOjSq9u4pwN8w48hwIekA1PRVNzQO89nb4KNL39ZCJuej1UqfsMDjD5y+ggmyzTp KJF+A4u7bkEHfF3LQfoBWGAWTXKDlIPfcOCIYFlrmHXlOIW8IH2vsfTUEgWF+nkbryXv 7t202s3pRaNZYm4ztPHeWsr0WTKU6Q5d2S+X5/XdOwzus9exF5ESNN3iON9qPDLw1aZa 62YsUsMcEK0cSyGHOTK9YctN8wFcucj7R7UhZsTzTEFDui8HJS++bY2vT6GxCvfIG/eN +i0A== 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=4xz6spXtxxXdjkDuCcyDHWPj+MoNvcOatFi0zEd+zC0=; b=YxhBOqKhxqQsrvXN0k0pZKLJhdyLlMs5C4wRKqU4/lFXDzpKZLmpcmtZQe5LqD/g/W PkSW4a1JCnOmojpTeSNreIu4QRNAQ/9fevMJCdcO59pzv3hwcZZhydEgyFDmYNd0SfzZ YCM+K1cXsMupvcr2UfsmTc311Gk0gLqh24eP+cN+lpxD5Txuh0X0WCzxYQ2HS1pH3VLh yfQFPbdIWtON6sImRbLr41oUPdryQzkxAjNKDe6/4X5Oizf+3BHj5pkb7AoZpuL5Ca7v TrBb6fnUMgICT71NJmQIHSFrVkHpeWHbx16nIt+P0HSlskagbXjKtZJa4gd/RwPpdRfN xNAQ== X-Gm-Message-State: AGi0PuYHDaKQ3fc6aPTEvZQXIhtYiWEtfLx/PKpAXyaDWVwPv1HdD1gp dybAPWSDxoyhim3PnlMHHE9xYA7G4vljjiTAS8fEJg== X-Google-Smtp-Source: APiQypIqpFog1SlT/1VxZRLlaqx3z/hXF8ftyyW8oHGJcs3nkJA+LhjrDFx9PCVCWiy2bIGtL8+B7rPXnsKStdrC7H0= X-Received: by 2002:adf:a482:: with SMTP id g2mr3495010wrb.214.1585915535427; Fri, 03 Apr 2020 05:05:35 -0700 (PDT) MIME-Version: 1.0 References: <20200330211700.g7evnuvvjenq3fzm@wittgenstein> <1445647.1585576702@warthog.procyon.org.uk> <2418286.1585691572@warthog.procyon.org.uk> <20200401144109.GA29945@gardel-login> <2590640.1585757211@warthog.procyon.org.uk> <36e45eae8ad78f7b8889d9d03b8846e78d735d28.camel@themaw.net> <27994c53034c8f769ea063a54169317c3ee62c04.camel@themaw.net> <20200403111144.GB34663@gardel-login> In-Reply-To: From: Richard Weinberger Date: Fri, 3 Apr 2020 14:05:23 +0200 Message-ID: Subject: Re: Upcoming: Notifications, FS notifications and fsinfo() To: Miklos Szeredi Cc: Lennart Poettering , Ian Kent , David Howells , Christian Brauner , Linus Torvalds , Al Viro , dray@redhat.com, Karel Zak , Miklos Szeredi , Steven Whitehouse , Jeff Layton , andres@anarazel.de, keyrings@vger.kernel.org, linux-fsdevel , LKML , Aleksa Sarai 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, Apr 3, 2020 at 1:40 PM Miklos Szeredi wrote: > > On Fri, Apr 3, 2020 at 1:11 PM Lennart Poettering wrote: > > > > On Fr, 03.04.20 09:44, Ian Kent (raven@themaw.net) wrote: > > > > > > Currently the only way to find the mount id from a path is by parsing > > > > /proc/self/fdinfo/$fd. It is trivial, however, to extend statx(2) to > > > > return it directly from a path. Also the mount notification queue > > > > that David implemented contains the mount ID of the changed mount. > > > > I would love to have the mount ID exposed via statx(). > > Here's a patch. I was looking more than once for a nice way to get the mount id. Having it exposed via statx() would be great! -- Thanks, //richard