From patchwork Mon Sep 9 06:47:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 1982340 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Gj+lzttA; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=2404:9400:2:0:216:3eff:fee1:b9f1; helo=lists.ozlabs.org; envelope-from=linuxppc-dev+bounces-1166-incoming=patchwork.ozlabs.org@lists.ozlabs.org; receiver=patchwork.ozlabs.org) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2404:9400:2:0:216:3eff:fee1:b9f1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4X2HTn0jtNz1y1D for ; Mon, 9 Sep 2024 16:48:13 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4X2HTm6dwyz2yMt; Mon, 9 Sep 2024 16:48:12 +1000 (AEST) X-Original-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2604:1380:4641:c500::1" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1725864492; cv=none; b=MS0d1LcY74w19NaTdBkxDNXN83VWS6MVUl8EdyAAsyC2VolyJRUTKSZTb6qxcEQUhiT5F7lY2u4CfId9wLWpYqOGkBN+XRO57OaftYm7GnI/IpO09IYK8ntOkdGFRl02juYzfi45YMYRo4/jTiINL7REReYwRQUiqAhTycEUGF4ctbPXrVWQ+khHygvlaWkDbagwhXN1b1dZGczCQAcALFLuis2/3ATND3U4cgyOT2P6Gx7Q1tRQNpGcW5DOHhvQfw8Zug0cZYVbrmPltmU2z4L2sbe9Th9ZzV04h0+WKuXNL41A8MeZg+hoNAbOi2C5k+OjP5H4mgbOrf9O/PwRPQ== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1725864492; c=relaxed/relaxed; bh=LxF225/K/unP9JE6t/pV9AyRKMos1QHjLabCCQuOXXY=; h=DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:In-Reply-To: References:MIME-Version; b=YWNFawDg8B9k2jJE5DWNmdo9nE3NmZ9XHuInc/QTZda+TBQgoZgyy+gL55LZyFofpzso+s1IS4a8UTCFz+cGCR7KxZ6hCLFkJ84CwnfSJKQ47pk2i9mraAa/UReXAFIJwQVwEul+ZceJ12GxFEGh38qGCfxHeiGaBt+suJ9Z1PG6DN/OWw+gBc1QXLZa3rUoGFWShfyNQAgtBxb15DVjcDkjrR9bqUO4ZfeUeXVSsknu4dnwhHyX8znhxSvojK5cWkcy7hI6pK0GkOf3ppOiHoaQnHpzZ9GfCmWkXnKnxvXg+NVOHoUV5QBVgYWU7S6B1vDi3JSD1jeyHqWXR3XUqg== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Gj+lzttA; dkim-atps=neutral; spf=pass (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=rppt@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=Gj+lzttA; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=rppt@kernel.org; receiver=lists.ozlabs.org) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4X2HTm3fNwz2xxt for ; Mon, 9 Sep 2024 16:48:12 +1000 (AEST) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 12C905C555F; Mon, 9 Sep 2024 06:48:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9CCDEC4CECC; Mon, 9 Sep 2024 06:47:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725864490; bh=1IVaPMd4I4fDfGF1ACfZ1lO9QxF1trpdGcxo9QBF4dI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Gj+lzttAA5oSoV5Vb9da6KE7xFA3MX3gF3n4fs/Pu82TFZ4yZBYL4hkjpjHqKI6id GQFcdurzlHpJRWSFkagKeO65o2mvCvJr1aNXR33BED/KUmD0PA4kHUjW6yw9wu6Q/x UWzF2omUtV0ihTYSG7qcNP5ZHb/04Yp2U4P5f9UXvleC4UBaRsXMvJYF7XvTMcmuH6 qru4oHu/5m1jyYbalrUaQxR1ezKxywSshOwuHA6+dt+8QxczQtesKGh3CbBSrtCNpL TEXmTc8rltDVQI2WI8kB92WFu3EquhAxTBuM16XzgDV5xctv5hBhuXdfF4YNN/tcgy iKXE+mCxIahHw== From: Mike Rapoport To: Andrew Morton Cc: Andreas Larsson , Andy Lutomirski , Arnd Bergmann , Borislav Petkov , Brian Cain , Catalin Marinas , Christoph Hellwig , Christophe Leroy , Dave Hansen , Dinh Nguyen , Geert Uytterhoeven , Guo Ren , Helge Deller , Huacai Chen , Ingo Molnar , Johannes Berg , John Paul Adrian Glaubitz , Kent Overstreet , "Liam R. Howlett" , Luis Chamberlain , Mark Rutland , Masami Hiramatsu , Matt Turner , Max Filippov , Michael Ellerman , Michal Simek , Mike Rapoport , Oleg Nesterov , Palmer Dabbelt , Peter Zijlstra , Richard Weinberger , Russell King , Song Liu , Stafford Horne , Steven Rostedt , Thomas Bogendoerfer , Thomas Gleixner , Uladzislau Rezki , Vineet Gupta , Will Deacon , bpf@vger.kernel.org, linux-alpha@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-trace-kernel@vger.kernel.org, linux-um@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, sparclinux@vger.kernel.org, x86@kernel.org Subject: [PATCH v3 1/8] mm: vmalloc: group declarations depending on CONFIG_MMU together Date: Mon, 9 Sep 2024 09:47:23 +0300 Message-ID: <20240909064730.3290724-2-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240909064730.3290724-1-rppt@kernel.org> References: <20240909064730.3290724-1-rppt@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Post: List-Subscribe: , , List-Unsubscribe: MIME-Version: 1.0 From: "Mike Rapoport (Microsoft)" There are a couple of declarations that depend on CONFIG_MMU in include/linux/vmalloc.h spread all over the file. Group them all together to improve code readability. No functional changes. Signed-off-by: Mike Rapoport (Microsoft) --- include/linux/vmalloc.h | 60 +++++++++++++++++------------------------ 1 file changed, 24 insertions(+), 36 deletions(-) diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index e4a631ec430b..c614631a31cb 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -134,12 +134,6 @@ extern void vm_unmap_ram(const void *mem, unsigned int count); extern void *vm_map_ram(struct page **pages, unsigned int count, int node); extern void vm_unmap_aliases(void); -#ifdef CONFIG_MMU -extern unsigned long vmalloc_nr_pages(void); -#else -static inline unsigned long vmalloc_nr_pages(void) { return 0; } -#endif - extern void *vmalloc_noprof(unsigned long size) __alloc_size(1); #define vmalloc(...) alloc_hooks(vmalloc_noprof(__VA_ARGS__)) @@ -262,12 +256,29 @@ static inline bool is_vm_area_hugepages(const void *addr) #endif } +/* for /proc/kcore */ +extern long vread_iter(struct iov_iter *iter, const char *addr, size_t count); + +/* + * Internals. Don't use.. + */ +extern __init void vm_area_add_early(struct vm_struct *vm); +extern __init void vm_area_register_early(struct vm_struct *vm, size_t align); + +int register_vmap_purge_notifier(struct notifier_block *nb); +int unregister_vmap_purge_notifier(struct notifier_block *nb); + #ifdef CONFIG_MMU +#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) + +extern unsigned long vmalloc_nr_pages(void); + int vm_area_map_pages(struct vm_struct *area, unsigned long start, unsigned long end, struct page **pages); void vm_area_unmap_pages(struct vm_struct *area, unsigned long start, unsigned long end); void vunmap_range(unsigned long addr, unsigned long end); + static inline void set_vm_flush_reset_perms(void *addr) { struct vm_struct *vm = find_vm_area(addr); @@ -275,24 +286,14 @@ static inline void set_vm_flush_reset_perms(void *addr) if (vm) vm->flags |= VM_FLUSH_RESET_PERMS; } +#else /* !CONFIG_MMU */ +#define VMALLOC_TOTAL 0UL -#else -static inline void set_vm_flush_reset_perms(void *addr) -{ -} -#endif - -/* for /proc/kcore */ -extern long vread_iter(struct iov_iter *iter, const char *addr, size_t count); - -/* - * Internals. Don't use.. - */ -extern __init void vm_area_add_early(struct vm_struct *vm); -extern __init void vm_area_register_early(struct vm_struct *vm, size_t align); +static inline unsigned long vmalloc_nr_pages(void) { return 0; } +static inline void set_vm_flush_reset_perms(void *addr) {} +#endif /* CONFIG_MMU */ -#ifdef CONFIG_SMP -# ifdef CONFIG_MMU +#if defined(CONFIG_MMU) && defined(CONFIG_SMP) struct vm_struct **pcpu_get_vm_areas(const unsigned long *offsets, const size_t *sizes, int nr_vms, size_t align); @@ -307,22 +308,9 @@ pcpu_get_vm_areas(const unsigned long *offsets, return NULL; } -static inline void -pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms) -{ -} -# endif -#endif - -#ifdef CONFIG_MMU -#define VMALLOC_TOTAL (VMALLOC_END - VMALLOC_START) -#else -#define VMALLOC_TOTAL 0UL +static inline void pcpu_free_vm_areas(struct vm_struct **vms, int nr_vms) {} #endif -int register_vmap_purge_notifier(struct notifier_block *nb); -int unregister_vmap_purge_notifier(struct notifier_block *nb); - #if defined(CONFIG_MMU) && defined(CONFIG_PRINTK) bool vmalloc_dump_obj(void *object); #else