From patchwork Wed May 31 21:30:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13262635 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 6FA09C77B73 for ; Wed, 31 May 2023 21:32:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230487AbjEaVcB (ORCPT ); Wed, 31 May 2023 17:32:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39260 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230418AbjEaVbi (ORCPT ); Wed, 31 May 2023 17:31:38 -0400 Received: from mail-yw1-x1136.google.com (mail-yw1-x1136.google.com [IPv6:2607:f8b0:4864:20::1136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63C171AB; Wed, 31 May 2023 14:31:26 -0700 (PDT) Received: by mail-yw1-x1136.google.com with SMTP id 00721157ae682-568f9caff33so798857b3.2; Wed, 31 May 2023 14:31:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685568685; x=1688160685; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=TzKQXlz5IDfPvgDKTOeCKkz+dXM61NoKgwUhpTupiUw=; b=hIfmjb5X06SZ3BaD9NYBS6hgA+ayAquIKaVHr2BHnLBOPZKQ/J4ZAsHZVuEaw1F1C0 DLhGZpjTZZFs02UVgouMcVD7Om43dfavrY/9B0xqLArccnIFv4HyErh7ebqkxAVmYpAt c44ATu4lPRNkYKf1axyVO8gXjPrDMUnXOwNjgt4KrmrL4IpwwDNTjXfR8pLFfm5hWJH3 A3an9It/QF6RuKMl0LJM9Di6sd8T8h9NIoEvAXZjtMgMuUIFQhhIMF5orERUADpDZzUC JdcxeDPS4ad7hb6jzXYz7QYZfeE2bjaq1vVtDaxxKS7PVXsoR09l6Ff83vLOpPnhM1WL QcSQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685568685; x=1688160685; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TzKQXlz5IDfPvgDKTOeCKkz+dXM61NoKgwUhpTupiUw=; b=SB7r6F00Lx+aKhOJViFuq2qH5KpCnHUbtu4mXLZNmhp4REBzCs2MikRFYkpLmHSnw6 0vPetVRaG8ZNmE+/srfdUZ4iREzWHKwRcmQVmSoRt4JeiaJ6vurwXyxo4Qv/aLOkcnMC wUJcYo1gYPvcZu7ucU5po4AmamGiUfo6yRBOIVrbNtGffwcoVe6qcaFiCoMNOrGi5wjS nFvJYDfQItae58nnEirCBmC8s7J644q8XMaryGjMgiSe1WxmWiuIGcI1rcrUyUjrh1Xk emAfpN8WcN9bZd7Q4uTs66Op28Wnjed0EPEB/AxhVLntZau4peN5/TNMsYeNJKhmfhYy nNIA== X-Gm-Message-State: AC+VfDwZMMa3wmrT1OOBN1cpHZgv38TBkmZfuPWNcCRpqMSoHLq5HkX1 HheleBukvXX2yAyg6YjcGbw= X-Google-Smtp-Source: ACHHUZ4penqUBoef5VZ7RS39HNNXGjV3amJwKYqX+6tsdiojUfn+sW0Rg5ayNGX0C78Cc9bsT/rYzg== X-Received: by 2002:a81:a113:0:b0:54f:752e:9e60 with SMTP id y19-20020a81a113000000b0054f752e9e60mr6993857ywg.37.1685568685351; Wed, 31 May 2023 14:31:25 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::46]) by smtp.googlemail.com with ESMTPSA id t63-20020a0dd142000000b0055aafcef659sm658905ywd.5.2023.05.31.14.31.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 May 2023 14:31:25 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, "Vishal Moola (Oracle)" Subject: [PATCH v3 08/34] mm: Convert ptlock_ptr() to use ptdescs Date: Wed, 31 May 2023 14:30:06 -0700 Message-Id: <20230531213032.25338-9-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230531213032.25338-1-vishal.moola@gmail.com> References: <20230531213032.25338-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This removes some direct accesses to struct page, working towards splitting out struct ptdesc from struct page. Signed-off-by: Vishal Moola (Oracle) --- arch/x86/xen/mmu_pv.c | 2 +- include/linux/mm.h | 14 +++++++------- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index b3b8d289b9ab..f469862e3ef4 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -651,7 +651,7 @@ static spinlock_t *xen_pte_lock(struct page *page, struct mm_struct *mm) spinlock_t *ptl = NULL; #if USE_SPLIT_PTE_PTLOCKS - ptl = ptlock_ptr(page); + ptl = ptlock_ptr(page_ptdesc(page)); spin_lock_nest_lock(ptl, &mm->page_table_lock); #endif diff --git a/include/linux/mm.h b/include/linux/mm.h index 1fd16ac96036..6f7263fcd821 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2809,9 +2809,9 @@ void __init ptlock_cache_init(void); bool ptlock_alloc(struct ptdesc *ptdesc); extern void ptlock_free(struct page *page); -static inline spinlock_t *ptlock_ptr(struct page *page) +static inline spinlock_t *ptlock_ptr(struct ptdesc *ptdesc) { - return page->ptl; + return ptdesc->ptl; } #else /* ALLOC_SPLIT_PTLOCKS */ static inline void ptlock_cache_init(void) @@ -2827,15 +2827,15 @@ static inline void ptlock_free(struct page *page) { } -static inline spinlock_t *ptlock_ptr(struct page *page) +static inline spinlock_t *ptlock_ptr(struct ptdesc *ptdesc) { - return &page->ptl; + return &ptdesc->ptl; } #endif /* ALLOC_SPLIT_PTLOCKS */ static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd) { - return ptlock_ptr(pmd_page(*pmd)); + return ptlock_ptr(page_ptdesc(pmd_page(*pmd))); } static inline bool ptlock_init(struct page *page) @@ -2850,7 +2850,7 @@ static inline bool ptlock_init(struct page *page) VM_BUG_ON_PAGE(*(unsigned long *)&page->ptl, page); if (!ptlock_alloc(page_ptdesc(page))) return false; - spin_lock_init(ptlock_ptr(page)); + spin_lock_init(ptlock_ptr(page_ptdesc(page))); return true; } @@ -2920,7 +2920,7 @@ static inline struct ptdesc *pmd_ptdesc(pmd_t *pmd) static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd) { - return ptlock_ptr(ptdesc_page(pmd_ptdesc(pmd))); + return ptlock_ptr(pmd_ptdesc(pmd)); } static inline bool pmd_ptlock_init(struct page *page)