From nobody Mon Nov 25 04:56:05 2024 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5E8AC1D31AE; Wed, 30 Oct 2024 06:39:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730270359; cv=none; b=t6MG4sATucrtIrsBDCCEYU/4TR1t1KJMVRpRcqO2oE5DUYIZtsx1VOyEgJjgpi2LPuHgPhh/w/ByJks0zKl1OaJvNczho/vP5dE+sSmQf4+kYt7mHgZuQmdCrT+kEWeeimxOq82+5Z9XWdpcVHuiTzmuzAPmGZX7/X0I2rYkWdo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730270359; c=relaxed/simple; bh=3nyyNH5v2uLVnFdxFFD+XNXeHYcJOF9QmL11NuXz+wU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=tkIsdD1f/kRirqW97I03TzyQ3/XuQ9qjOwdPb/Xj/dv/54LBM/GWvjeLU/V7KNeoSkfG0iOYA2VmLtCABglZ+ggaj25HS4O4v2DS+UjhRYicYoOsiRKFwobHrqY9KlxfOfcuLdDGJhz6kylSL7gsR0GcNXzIDSwvsVphbRqc/yA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8AxquGR1CFnA6kdAA--.62511S3; Wed, 30 Oct 2024 14:39:13 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMDxPEeP1CFntLooAA--.23618S2; Wed, 30 Oct 2024 14:39:12 +0800 (CST) From: Bibo Mao To: Huacai Chen , Thomas Bogendoerfer , Andrew Morton , Andrey Ryabinin Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, kasan-dev@googlegroups.com, Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , WANG Xuerui Subject: [PATCH v2] mm: define general function pXd_init() Date: Wed, 30 Oct 2024 14:39:05 +0800 Message-Id: <20241030063905.2434824-1-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMDxPEeP1CFntLooAA--.23618S2 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Content-Type: text/plain; charset="utf-8" Function pud_init(), pmd_init() and kernel_pte_init() are duplicated defined in file kasan.c and sparse-vmemmap.c as weak functions. Move them to generic header file pgtable.h, architecture can redefine them. Signed-off-by: Bibo Mao Reviewed-by: Huacai Chen --- v1 ... v2: 1. Add general function definition about kernel_pte_init(). --- arch/loongarch/include/asm/pgtable.h | 3 +++ arch/mips/include/asm/pgtable-64.h | 2 ++ include/linux/mm.h | 3 --- include/linux/pgtable.h | 21 +++++++++++++++++++++ mm/kasan/init.c | 12 ------------ mm/sparse-vmemmap.c | 12 ------------ 6 files changed, 26 insertions(+), 27 deletions(-) diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/= asm/pgtable.h index 20714b73f14c..df5889d995f9 100644 --- a/arch/loongarch/include/asm/pgtable.h +++ b/arch/loongarch/include/asm/pgtable.h @@ -267,8 +267,11 @@ extern void set_pmd_at(struct mm_struct *mm, unsigned = long addr, pmd_t *pmdp, pm * Initialize a new pgd / pud / pmd table with invalid pointers. */ extern void pgd_init(void *addr); +#define pud_init pud_init extern void pud_init(void *addr); +#define pmd_init pmd_init extern void pmd_init(void *addr); +#define kernel_pte_init kernel_pte_init extern void kernel_pte_init(void *addr); =20 /* diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgt= able-64.h index 401c1d9e4409..45c8572a0462 100644 --- a/arch/mips/include/asm/pgtable-64.h +++ b/arch/mips/include/asm/pgtable-64.h @@ -316,7 +316,9 @@ static inline pmd_t *pud_pgtable(pud_t pud) * Initialize a new pgd / pud / pmd table with invalid pointers. */ extern void pgd_init(void *addr); +#define pud_init pud_init extern void pud_init(void *addr); +#define pmd_init pmd_init extern void pmd_init(void *addr); =20 /* diff --git a/include/linux/mm.h b/include/linux/mm.h index 61fff5d34ed5..651bdc1bef48 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3818,9 +3818,6 @@ void *sparse_buffer_alloc(unsigned long size); struct page * __populate_section_memmap(unsigned long pfn, unsigned long nr_pages, int nid, struct vmem_altmap *altmap, struct dev_pagemap *pgmap); -void pud_init(void *addr); -void pmd_init(void *addr); -void kernel_pte_init(void *addr); pgd_t *vmemmap_pgd_populate(unsigned long addr, int node); p4d_t *vmemmap_p4d_populate(pgd_t *pgd, unsigned long addr, int node); pud_t *vmemmap_pud_populate(p4d_t *p4d, unsigned long addr, int node); diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index e8b2ac6bd2ae..adee214c21f8 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -90,6 +90,27 @@ static inline unsigned long pud_index(unsigned long addr= ess) #define pgd_index(a) (((a) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) #endif =20 +#ifndef kernel_pte_init +static inline void kernel_pte_init(void *addr) +{ +} +#define kernel_pte_init kernel_pte_init +#endif + +#ifndef pmd_init +static inline void pmd_init(void *addr) +{ +} +#define pmd_init pmd_init +#endif + +#ifndef pud_init +static inline void pud_init(void *addr) +{ +} +#define pud_init pud_init +#endif + #ifndef pte_offset_kernel static inline pte_t *pte_offset_kernel(pmd_t *pmd, unsigned long address) { diff --git a/mm/kasan/init.c b/mm/kasan/init.c index ac607c306292..ced6b29fcf76 100644 --- a/mm/kasan/init.c +++ b/mm/kasan/init.c @@ -106,10 +106,6 @@ static void __ref zero_pte_populate(pmd_t *pmd, unsign= ed long addr, } } =20 -void __weak __meminit kernel_pte_init(void *addr) -{ -} - static int __ref zero_pmd_populate(pud_t *pud, unsigned long addr, unsigned long end) { @@ -145,10 +141,6 @@ static int __ref zero_pmd_populate(pud_t *pud, unsigne= d long addr, return 0; } =20 -void __weak __meminit pmd_init(void *addr) -{ -} - static int __ref zero_pud_populate(p4d_t *p4d, unsigned long addr, unsigned long end) { @@ -187,10 +179,6 @@ static int __ref zero_pud_populate(p4d_t *p4d, unsigne= d long addr, return 0; } =20 -void __weak __meminit pud_init(void *addr) -{ -} - static int __ref zero_p4d_populate(pgd_t *pgd, unsigned long addr, unsigned long end) { diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c index c0388b2e959d..cec67c5f37d8 100644 --- a/mm/sparse-vmemmap.c +++ b/mm/sparse-vmemmap.c @@ -184,10 +184,6 @@ static void * __meminit vmemmap_alloc_block_zero(unsig= ned long size, int node) return p; } =20 -void __weak __meminit kernel_pte_init(void *addr) -{ -} - pmd_t * __meminit vmemmap_pmd_populate(pud_t *pud, unsigned long addr, int= node) { pmd_t *pmd =3D pmd_offset(pud, addr); @@ -201,10 +197,6 @@ pmd_t * __meminit vmemmap_pmd_populate(pud_t *pud, uns= igned long addr, int node) return pmd; } =20 -void __weak __meminit pmd_init(void *addr) -{ -} - pud_t * __meminit vmemmap_pud_populate(p4d_t *p4d, unsigned long addr, int= node) { pud_t *pud =3D pud_offset(p4d, addr); @@ -218,10 +210,6 @@ pud_t * __meminit vmemmap_pud_populate(p4d_t *p4d, uns= igned long addr, int node) return pud; } =20 -void __weak __meminit pud_init(void *addr) -{ -} - p4d_t * __meminit vmemmap_p4d_populate(pgd_t *pgd, unsigned long addr, int= node) { p4d_t *p4d =3D p4d_offset(pgd, addr); base-commit: 81983758430957d9a5cb3333fe324fd70cf63e7e --=20 2.39.3