From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-4.1 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,SPF_HELO_NONE,SPF_NONE shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 7F37B1F461 for ; Mon, 8 Jul 2019 19:24:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731614AbfGHTYM (ORCPT ); Mon, 8 Jul 2019 15:24:12 -0400 Received: from pb-smtp2.pobox.com ([64.147.108.71]:62876 "EHLO pb-smtp2.pobox.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728615AbfGHTYM (ORCPT ); Mon, 8 Jul 2019 15:24:12 -0400 Received: from pb-smtp2.pobox.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 1E37B14CC2A; Mon, 8 Jul 2019 15:24:12 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; s=sasl; bh=TT9HWu9QkID8vJDw7HNmeVtZwmU=; b=kpoP0u OfQr6mT/AEe1O4qmQ/xBCRmgVFzf69Ug8BIwUo8KoZxGIgGOtGmy31IS4NS+AMMf Oz1EEXx7ERyHS2vDotgkaBQEtAmkrd73iQt5hhzA3ktCo2xkO/3hX+ytKlNx80ih UzPMGMgjQ4vVzvX38sK14od7cu/S+42ckcJSc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type; q=dns; s=sasl; b=ojK8sELjJ/ujzg1edXaP2vMzdGs+8XWO MK6Zd4snx/g1qV3MVNSDc0RVfrcE3c6pmWxdIVF8R/oG2qRSZITC3e3gIMs4i/bT DmXBvqIkdIe4L6gWdZPdQ6Nc7QXcjVLW/SK6XB+9j3M6BcpJo3QSfBVVk+YsdZxb eoOTzDQsa3A= Received: from pb-smtp2.nyi.icgroup.com (unknown [127.0.0.1]) by pb-smtp2.pobox.com (Postfix) with ESMTP id 16F8714CC29; Mon, 8 Jul 2019 15:24:12 -0400 (EDT) Received: from pobox.com (unknown [34.76.80.147]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by pb-smtp2.pobox.com (Postfix) with ESMTPSA id 7F04714CC28; Mon, 8 Jul 2019 15:24:11 -0400 (EDT) From: Junio C Hamano To: "Johannes Schindelin via GitGitGadget" Cc: git@vger.kernel.org Subject: Re: [PATCH 0/1] diff: release all handles before running external diff References: Date: Mon, 08 Jul 2019 12:24:10 -0700 In-Reply-To: (Johannes Schindelin via GitGitGadget's message of "Thu, 04 Jul 2019 02:16:22 -0700 (PDT)") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Pobox-Relay-ID: F6EC3EBE-A1B5-11E9-AC22-72EEE64BB12D-77302942!pb-smtp2.pobox.com Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org "Johannes Schindelin via GitGitGadget" writes: > On Windows, it is not possible to overwrite a file as long as any process > holds a read handle to it. Even keeping regions memory-mapped prevents that. That second sentence was quite helpful, as I do recall us closing after mmapping. Without it, the justification becomes quite weak.