From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-5.8 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,RCVD_IN_SORBS_SPAM, RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 3EE33200E0 for ; Mon, 26 Dec 2016 10:23:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755716AbcLZKXP (ORCPT ); Mon, 26 Dec 2016 05:23:15 -0500 Received: from mail-wj0-f195.google.com ([209.85.210.195]:34733 "EHLO mail-wj0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755590AbcLZKWu (ORCPT ); Mon, 26 Dec 2016 05:22:50 -0500 Received: by mail-wj0-f195.google.com with SMTP id qs7so10343303wjc.1 for ; Mon, 26 Dec 2016 02:22:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=q2LnTFhya4qkNZO6T1PsrfbO18xSl4t7348E+XJ65m4=; b=ZYR4Gw8RihYIsd0kSGex3azkuOfYs0YBRtDPM6xy/z+I3EpiSw/gHxvK1DLCothGWx sgEKWITb/+P4HFGbgBvcFFABMJirbBxfQBwGA/Kc66ArzhPsWoYvBdEqge1A/te6soek zq+H74mT5E40QeuQJF8H6d0nAvptOngQStc6F8xBR/d4v7/d51Jmxy8JSqbXlBmoSpjL Lr8P7m0u56EpuLPU8T+Ypgor5DAhNHfYB3dGbd+HXym+7ej4ELKSMZfp/tRQG7ULHzxi KIVaiK4b+J7WnAqPbOPgvg57wVs/DcXgVnhdJvbRfw9dc5j8H4bXmnJaug9Af2M5sgPw qhqA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=q2LnTFhya4qkNZO6T1PsrfbO18xSl4t7348E+XJ65m4=; b=YiSvn4mZ4XES9f/IGghaWT5NaWFlBY4eeQBkJx2lm6eSrCsJT46e2B0IBQ9UPA/jD5 ljn71V0qO4z7tWxzU0Y9yMsEIcwv8TxchY2+gqECvwRY/dnIRuAEcuFANjHbwLzs0TKA syUtSv035HHcd6hXjOVYVOYjtKiFMdW9Je1CP3Tys+TufATelcTS00niXqbcF77PT0yL sspbSYIsxzBm5D1kb+UBaHIoEFUyt4ITexiWvdiwKO8HTqCLfPSM4TTi0L3eMk+0OQHQ M7ylYhQAZXwhrismB8zNhT1hbdDfkvHhmERY7cy+HgBqA2Dn3xSuG6SugjUsfofg0szZ 8ZEg== X-Gm-Message-State: AIkVDXJ0RyVOZgJd+4pCNpp1cxjgaarNT36TenIsnhPwprxRK6Q24YV8x0s5xpv6JzxWXA== X-Received: by 10.194.222.132 with SMTP id qm4mr27228672wjc.150.1482747769341; Mon, 26 Dec 2016 02:22:49 -0800 (PST) Received: from localhost.localdomain (cha92-h01-128-78-31-246.dsl.sta.abo.bbox.fr. [128.78.31.246]) by smtp.gmail.com with ESMTPSA id kp5sm54259010wjb.8.2016.12.26.02.22.48 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 26 Dec 2016 02:22:48 -0800 (PST) From: Christian Couder X-Google-Original-From: Christian Couder To: git@vger.kernel.org Cc: Junio C Hamano , Nguyen Thai Ngoc Duy , =?UTF-8?q?=C3=86var=20Arnfj=C3=B6r=C3=B0=20Bjarmason?= , Christian Couder Subject: [PATCH v3 14/21] read-cache: touch shared index files when used Date: Mon, 26 Dec 2016 11:22:15 +0100 Message-Id: <20161226102222.17150-15-chriscool@tuxfamily.org> X-Mailer: git-send-email 2.11.0.209.gda91e66374.dirty In-Reply-To: <20161226102222.17150-1-chriscool@tuxfamily.org> References: <20161226102222.17150-1-chriscool@tuxfamily.org> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org When a split-index file is created, let's update the mtime of the shared index file that the split-index file is referencing. In a following commit we will make shared index file expire depending on their mtime, so updating the mtime makes sure that the shared index file will not be deleted soon. Signed-off-by: Christian Couder --- read-cache.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/read-cache.c b/read-cache.c index a1aaec5135..9fbad2044b 100644 --- a/read-cache.c +++ b/read-cache.c @@ -1682,6 +1682,19 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist) die("index file corrupt"); } +/* + * Signal that the shared index is used by updating its mtime. + * + * This way, shared index can be removed if they have not been used + * for some time. It's ok to fail to update the mtime if we are on a + * read only file system. + */ +void freshen_shared_index(char *base_sha1_hex) +{ + const char *shared_index = git_path("sharedindex.%s", base_sha1_hex); + check_and_freshen_file(shared_index, 1); +} + int read_index_from(struct index_state *istate, const char *path) { struct split_index *split_index; @@ -2273,6 +2286,8 @@ int write_locked_index(struct index_state *istate, struct lock_file *lock, int ret = write_shared_index(istate, lock, flags); if (ret) return ret; + } else { + freshen_shared_index(sha1_to_hex(si->base_sha1)); } return write_split_index(istate, lock, flags); -- 2.11.0.209.gda91e66374.dirty