From patchwork Tue Feb 22 15:00:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 12755287 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D639C433FE for ; Tue, 22 Feb 2022 15:01:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233204AbiBVPCT (ORCPT ); Tue, 22 Feb 2022 10:02:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233199AbiBVPCF (ORCPT ); Tue, 22 Feb 2022 10:02:05 -0500 Received: from pegase2.c-s.fr (pegase2.c-s.fr [93.17.235.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C799D15DB03; Tue, 22 Feb 2022 07:00:42 -0800 (PST) Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4K32RF1vXMz9sSX; Tue, 22 Feb 2022 16:00:41 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id aHsBMPXbzwiE; Tue, 22 Feb 2022 16:00:41 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4K32RF16bkz9sSP; Tue, 22 Feb 2022 16:00:41 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 15D7D8B783; Tue, 22 Feb 2022 16:00:41 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id Rfqs5P2jSmQ5; Tue, 22 Feb 2022 16:00:41 +0100 (CET) Received: from PO20335.IDSI0.si.c-s.fr (unknown [192.168.7.78]) by messagerie.si.c-s.fr (Postfix) with ESMTP id BB7CB8B764; Tue, 22 Feb 2022 16:00:40 +0100 (CET) Received: from PO20335.IDSI0.si.c-s.fr (localhost [127.0.0.1]) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.16.1) with ESMTPS id 21MF0VhI1087063 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Tue, 22 Feb 2022 16:00:31 +0100 Received: (from chleroy@localhost) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.17.1/Submit) id 21MF0V8O1087062; Tue, 22 Feb 2022 16:00:31 +0100 X-Authentication-Warning: PO20335.IDSI0.si.c-s.fr: chleroy set sender to christophe.leroy@csgroup.eu using -f From: Christophe Leroy To: Luis Chamberlain , Aaron Tomlin Cc: Christophe Leroy , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kgdb-bugreport@lists.sourceforge.net, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-modules@vger.kernel.org Subject: [PATCH v5 1/6] module: Always have struct mod_tree_root Date: Tue, 22 Feb 2022 16:00:18 +0100 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1645542019; l=1894; s=20211009; h=from:subject:message-id; bh=LdQW7knw8SonM6V3x5dRanGW0RmzQuevemJoFaoAVWs=; b=Gf7wC7QYemkicc/NhrBdTVD+qjc4lnhJtPWXAc0YJAgZbJFTXdX6gN0m5lURY+4t4MD8nfsJoIVg SGmcTtOhARaEy/nlBipLNhQMxcFRT4kiZqtuWEy4h3O5bzlknr5V X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= Precedence: bulk List-ID: In order to separate text and data, we need to setup two rb trees. This means that struct mod_tree_root is required even without MODULES_TREE_LOOKUP. Signed-off-by: Christophe Leroy Reviewed-by: Aaron Tomlin --- kernel/module/internal.h | 4 +++- kernel/module/main.c | 5 ----- 2 files changed, 3 insertions(+), 6 deletions(-) diff --git a/kernel/module/internal.h b/kernel/module/internal.h index 3fc139d5074b..743b598e7cc2 100644 --- a/kernel/module/internal.h +++ b/kernel/module/internal.h @@ -143,15 +143,17 @@ static inline void module_decompress_cleanup(struct load_info *info) } #endif -#ifdef CONFIG_MODULES_TREE_LOOKUP struct mod_tree_root { +#ifdef CONFIG_MODULES_TREE_LOOKUP struct latch_tree_root root; +#endif unsigned long addr_min; unsigned long addr_max; }; extern struct mod_tree_root mod_tree; +#ifdef CONFIG_MODULES_TREE_LOOKUP void mod_tree_insert(struct module *mod); void mod_tree_remove_init(struct module *mod); void mod_tree_remove(struct module *mod); diff --git a/kernel/module/main.c b/kernel/module/main.c index 0749afdc34b5..3b75cb97f8c2 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -74,7 +74,6 @@ static void do_free_init(struct work_struct *w); static DECLARE_WORK(init_free_wq, do_free_init); static LLIST_HEAD(init_free_list); -#ifdef CONFIG_MODULES_TREE_LOOKUP struct mod_tree_root mod_tree __cacheline_aligned = { .addr_min = -1UL, }; @@ -82,10 +81,6 @@ struct mod_tree_root mod_tree __cacheline_aligned = { #define module_addr_min mod_tree.addr_min #define module_addr_max mod_tree.addr_max -#else /* !CONFIG_MODULES_TREE_LOOKUP */ -static unsigned long module_addr_min = -1UL, module_addr_max; -#endif /* CONFIG_MODULES_TREE_LOOKUP */ - struct symsearch { const struct kernel_symbol *start, *stop; const s32 *crcs;