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[209.132.180.67]) by mx.google.com with ESMTP id o19si2272139pgv.142.2019.03.20.13.08.17; Wed, 20 Mar 2019 13:08:34 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=FVKbo80S; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726740AbfCTUHH (ORCPT + 99 others); Wed, 20 Mar 2019 16:07:07 -0400 Received: from mail-wm1-f51.google.com ([209.85.128.51]:38757 "EHLO mail-wm1-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726123AbfCTUHH (ORCPT ); Wed, 20 Mar 2019 16:07:07 -0400 Received: by mail-wm1-f51.google.com with SMTP id a188so477257wmf.3 for ; Wed, 20 Mar 2019 13:07:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=i2CZ2h17IUTfC8WxVSpqJhUQ56dM9AQtPWmIlXcrDl0=; b=FVKbo80SI+42LmCHZJvOHvWzk7+b+wBTJiKEPa48rO5HujMlpo8/QojQ9YJP+FxMI3 B+pstJUepqfPEIF1YmgWFtMh+Zpumje1ueefKQcVSoZyETP2Un19mhENRFGcHpFQz9AN vwbJIc34yf9eIYdFWHN4A+9IPuEQAyH37Lz5+PkeibNaAW1FpVxCSxtCyaTjlKjHOkZP 3ODi9QP6wlC5m+dDpSNnBd7z1hPXL5maAayR7pq9fkvr1m3wqOkJnC1+V4SCjP5dhNCm LARIurLqd0rhV2Wfmb/I7Sw6Tu6m83NBQdAaL2iXqKXQBuX63Cl49/X9aMwq68QTJtAy cJ+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=i2CZ2h17IUTfC8WxVSpqJhUQ56dM9AQtPWmIlXcrDl0=; b=BAHaayWDkW3MCgDFwx4EqCKO6nzv1Nd3KdjWixyHlne8UkB3L57HTZwjHpWDemvxDv 8llY7tKbO+SSJmTwiSovQcNvYcv6jhXBnKSUc7Uxyr+APuBoBQZjf1Or4X2RC1VM0zsF Ar+1qlPaolB5z4mnuB0YiWcMijS72GNBPQ1Af6o/nT0j5wr5VbIl0v/zKkPTZKY0pFYt E2oLcAd+smlSu55SXB8wZyaz2cDsffofvwYu46ikeYyLD6WOYsguaTOigyNWpyzisF/r bJ9mqZpLSKocoztasyQJxZyotL0Mnl2IYJu/K+EYefIbw6jTJPrQHvtkI1iKmSzBM8SN hGHQ== X-Gm-Message-State: APjAAAXc7HSpjmSkBeATTz+0dYfxeY1PGYtftu7UOCjSBmlACXuTX/UU l0NpL2G6qXXRrcBk0cfDZw== X-Received: by 2002:a1c:66c2:: with SMTP id a185mr64553wmc.139.1553112425351; Wed, 20 Mar 2019 13:07:05 -0700 (PDT) Received: from avx2 ([46.53.240.229]) by smtp.gmail.com with ESMTPSA id f20sm6715964wrg.91.2019.03.20.13.07.04 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 20 Mar 2019 13:07:04 -0700 (PDT) Date: Wed, 20 Mar 2019 23:07:02 +0300 From: Alexey Dobriyan To: christian@brauner.io Cc: linux-kernel@vger.kernel.org, dancol@google.com, joel@joelfernandes.org, luto@kernel.org Subject: Re: pidfd design Message-ID: <20190320200702.GA27111@avx2> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > What would be your opinion to having a > /proc//handle > file instead of having a dirfd. This is even worse than depending on PROC_FS. Just for the dependency pidfd code should be backed out immediately. Forget about /proc.