From patchwork Mon Aug 26 06:55:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13777190 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 429A1129A78; Mon, 26 Aug 2024 06:56:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724655372; cv=none; b=euYN32KI3Tx/bsebmxrOgEzK5aeDED7EDbb4zlcJL+LGirx2mA7jujYN3e9Pc1c2chSnUq5f/GAw0B5CAZR5ifKrnGITzkDES3Gjudaoj4OE7tQ2lLGIZRkb1JlH6K45a3F59Bjit5JbyJE7q4CzhRlDVaWRDrbztOpfO7qznzw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724655372; c=relaxed/simple; bh=1IVaPMd4I4fDfGF1ACfZ1lO9QxF1trpdGcxo9QBF4dI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OGj8zA+rigcCoSgM6vg/n6xVnTUmQG3ZWgT0MuZ0ZINcxtQ5MopVyxi0C5CVoXeuLTIcp7vdgbIL76ycf06RuEIX9OReWY/f1TUiZmi37/w6cIKlauh0ZSZD4bAkk2dSRMfCcEBMfse8VbzPlbo7HCNyjBBy7lmRjeyhS2wgKY0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eEXWu1rK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="eEXWu1rK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7310EC4CC21; Mon, 26 Aug 2024 06:55:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724655371; bh=1IVaPMd4I4fDfGF1ACfZ1lO9QxF1trpdGcxo9QBF4dI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eEXWu1rKRnZ648Ah+x/1BHnotq5Ln0fHqGprrk/r5JBNYEHatBGvJrJociOpwu76B aZf6asJPDlGZg/jbjaINxlgmRQgSqtzNvMEGQW1yfKDx/eRPw4h5498wpkylKQMGwF 6ik8WsFe6xb4iUQGRa6QVkB48hCx3+0QVmX1P1sO40K5nOnoLaCUvsYe9tt8SMyXJN NX7HI9ihImLp5tA/BMIzq0nTRJMAdNRlk5OyHkilumvLHOyzu3rzeAoFqtfiiRbQqp qizWmDiaWIyxFsVcbhSIUXn1ghK+zdzLlqjG04+bjJA0HiiGMEo9ORCQvDuCHXAmSr KUgJwhh6Ckf6Q== 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 v2 1/8] mm: vmalloc: group declarations depending on CONFIG_MMU together Date: Mon, 26 Aug 2024 09:55:25 +0300 Message-ID: <20240826065532.2618273-2-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240826065532.2618273-1-rppt@kernel.org> References: <20240826065532.2618273-1-rppt@kernel.org> Precedence: bulk X-Mailing-List: linux-modules@vger.kernel.org List-Id: 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