From patchwork Thu Dec 19 16:44:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Brodsky X-Patchwork-Id: 13915277 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EA06F198833; Thu, 19 Dec 2024 16:46:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734626778; cv=none; b=kL7Qxbi1LUapUFjI2tOEJa9gakdekjZgzKNvD9eFNpG+wP2sr6kqTkhUYLxrWtj/X/YTsNKrZiuYM1cDpRyyYDzVMPLFHjrZDaW6KNSl3lX0Pa4uv048B0nGD0FWMpQRmlEANpSruNx0T6hOvOnOmuMmk/Vqpu49VGYft7nqKio= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734626778; c=relaxed/simple; bh=iZWxcLwpc+4bgx38S5mGT35hxweP+fw2w4E8Y3ySLyM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IsQnVlf4EhAneEpthVhAOg6iKuJHyoImhq6HLTfbAWDa4ngDcUxRX28Qq9TT8e7v8UscDp7onwVRGAxuZhAeBWZfbChujTG3+waFwxOHVpMk4vhKGiDsJAZcEzl+2qxIHZk2H7o1sXBSuygtjKoFvcG/8O/S7wXA8sJ+VWRBLPA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5FF7A1D13; Thu, 19 Dec 2024 08:46:43 -0800 (PST) Received: from e123572-lin.arm.com (e123572-lin.cambridge.arm.com [10.1.194.54]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 60DB33F58B; Thu, 19 Dec 2024 08:46:11 -0800 (PST) From: Kevin Brodsky To: linux-mm@kvack.org Cc: Kevin Brodsky , Andrew Morton , Catalin Marinas , Dave Hansen , Linus Walleij , Andy Lutomirski , Peter Zijlstra , "Mike Rapoport (IBM)" , Ryan Roberts , Thomas Gleixner , Will Deacon , Matthew Wilcox , 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-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-um@lists.infradead.org, loongarch@lists.linux.dev, x86@kernel.org Subject: [PATCH 01/10] mm: Move common parts of pagetable_*_[cd]tor to helpers Date: Thu, 19 Dec 2024 16:44:16 +0000 Message-ID: <20241219164425.2277022-2-kevin.brodsky@arm.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241219164425.2277022-1-kevin.brodsky@arm.com> References: <20241219164425.2277022-1-kevin.brodsky@arm.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Besides the ptlock management at PTE/PMD level, all the pagetable_*_[cd]tor have the same implementation. Introduce common helpers for all levels to reduce the duplication. Signed-off-by: Kevin Brodsky --- include/linux/mm.h | 46 ++++++++++++++++++++++------------------------ 1 file changed, 22 insertions(+), 24 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index c39c4945946c..a5b482362792 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2915,6 +2915,22 @@ static inline void pagetable_free(struct ptdesc *pt) __free_pages(page, compound_order(page)); } +static inline void __pagetable_ctor(struct ptdesc *ptdesc) +{ + struct folio *folio = ptdesc_folio(ptdesc); + + __folio_set_pgtable(folio); + lruvec_stat_add_folio(folio, NR_PAGETABLE); +} + +static inline void __pagetable_dtor(struct ptdesc *ptdesc) +{ + struct folio *folio = ptdesc_folio(ptdesc); + + __folio_clear_pgtable(folio); + lruvec_stat_sub_folio(folio, NR_PAGETABLE); +} + #if defined(CONFIG_SPLIT_PTE_PTLOCKS) #if ALLOC_SPLIT_PTLOCKS void __init ptlock_cache_init(void); @@ -2992,22 +3008,16 @@ static inline void ptlock_free(struct ptdesc *ptdesc) {} static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc) { - struct folio *folio = ptdesc_folio(ptdesc); - if (!ptlock_init(ptdesc)) return false; - __folio_set_pgtable(folio); - lruvec_stat_add_folio(folio, NR_PAGETABLE); + __pagetable_ctor(ptdesc); return true; } static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) { - struct folio *folio = ptdesc_folio(ptdesc); - ptlock_free(ptdesc); - __folio_clear_pgtable(folio); - lruvec_stat_sub_folio(folio, NR_PAGETABLE); + __pagetable_dtor(ptdesc); } pte_t *__pte_offset_map(pmd_t *pmd, unsigned long addr, pmd_t *pmdvalp); @@ -3110,22 +3120,16 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd) static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc) { - struct folio *folio = ptdesc_folio(ptdesc); - if (!pmd_ptlock_init(ptdesc)) return false; - __folio_set_pgtable(folio); - lruvec_stat_add_folio(folio, NR_PAGETABLE); + __pagetable_ctor(ptdesc); return true; } static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) { - struct folio *folio = ptdesc_folio(ptdesc); - pmd_ptlock_free(ptdesc); - __folio_clear_pgtable(folio); - lruvec_stat_sub_folio(folio, NR_PAGETABLE); + __pagetable_dtor(ptdesc); } /* @@ -3149,18 +3153,12 @@ static inline spinlock_t *pud_lock(struct mm_struct *mm, pud_t *pud) static inline void pagetable_pud_ctor(struct ptdesc *ptdesc) { - struct folio *folio = ptdesc_folio(ptdesc); - - __folio_set_pgtable(folio); - lruvec_stat_add_folio(folio, NR_PAGETABLE); + __pagetable_ctor(ptdesc); } static inline void pagetable_pud_dtor(struct ptdesc *ptdesc) { - struct folio *folio = ptdesc_folio(ptdesc); - - __folio_clear_pgtable(folio); - lruvec_stat_sub_folio(folio, NR_PAGETABLE); + __pagetable_dtor(ptdesc); } extern void __init pagecache_init(void);