From mboxrd@z Thu Jan 1 00:00:00 1970 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 10FFBEB64DD for ; Wed, 14 Jun 2023 14:11:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245405AbjFNOLb (ORCPT ); Wed, 14 Jun 2023 10:11:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236777AbjFNOLa (ORCPT ); Wed, 14 Jun 2023 10:11:30 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2CD3CD; Wed, 14 Jun 2023 07:11:27 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (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 dfw.source.kernel.org (Postfix) with ESMTPS id 775AA642A3; Wed, 14 Jun 2023 14:11:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10F7AC433C0; Wed, 14 Jun 2023 14:11:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686751886; bh=nq3f91/c6VdnG05wknAO7CzsIzeIwd55LMS9xhs7vLc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZhJtlj5I8piICZIev7qvB69N2MRkFrUNmM4AY9KOSxdltgl+qcVmK0w/AhUDKOYUE C0naLvwDyTJX3vMjNC8e9+i7bgqJP3nnR+cfRN/EKtI25YOH2TSwU36LZazWsweF02 YGMNzwODmUGT8dkPREzGod/+rUbK65tLM4QfOSq3fgVX2NpImfyc5X1iBcneHw7wgS aWE67OFlHHdjdwxPMfJUf27XkhoC98XnYJ++XQkAMrKDt/blZeMPDlGxeoaoTED8QE EqDj0B92olx0FPba9u2ztMQCZcN18316sOzneqJzKqI8FGzRdybM2tuA29sFD9tYUy 7yV6zVzN7CwRA== Date: Wed, 14 Jun 2023 17:10:49 +0300 From: Mike Rapoport To: "Vishal Moola (Oracle)" Cc: Andrew Morton , Matthew Wilcox , 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, Hugh Dickins Subject: Re: [PATCH v4 13/34] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Message-ID: <20230614141049.GL52412@kernel.org> References: <20230612210423.18611-1-vishal.moola@gmail.com> <20230612210423.18611-14-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230612210423.18611-14-vishal.moola@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Mon, Jun 12, 2023 at 02:04:02PM -0700, Vishal Moola (Oracle) wrote: > Creates pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(), > and pagetable_pmd_dtor() and make the original pgtable > constructor/destructors wrappers. Nit: either "creates ... makes" or "create ... make" I like the second form more. > Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) > --- > include/linux/mm.h | 56 ++++++++++++++++++++++++++++++++++------------ > 1 file changed, 42 insertions(+), 14 deletions(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index a1af7983e1bd..dc211c43610b 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2886,20 +2886,34 @@ static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; } > static inline void ptlock_free(struct ptdesc *ptdesc) {} > #endif /* USE_SPLIT_PTE_PTLOCKS */ > > -static inline bool pgtable_pte_page_ctor(struct page *page) > +static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc) > { > - if (!ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); This comment is more to patch 1 ("mm: Add PAGE_TYPE_OP folio functions") It would be better to have _pgtable here, as "table" does not necessary mean page table. With PageType SetPageTable was fine, but with folio I think it should be more explicit. I'd add a third parameter to PAGE_TYPE_OPS for that. > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pte_page_ctor(struct page *page) > +{ > + return pagetable_pte_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pte_page_dtor(struct page *page) > { > - ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pte_dtor(page_ptdesc(page)); > } > > #define pte_offset_map_lock(mm, pmd, address, ptlp) \ > @@ -2981,20 +2995,34 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd) > return ptl; > } > > -static inline bool pgtable_pmd_page_ctor(struct page *page) > +static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc) > { > - if (!pmd_ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!pmd_ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pmd_page_ctor(struct page *page) > +{ > + return pagetable_pmd_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + pmd_ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pmd_page_dtor(struct page *page) > { > - pmd_ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pmd_dtor(page_ptdesc(page)); > } > > /* > -- > 2.40.1 > > -- Sincerely yours, Mike. From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 990D2EB64D8 for ; Wed, 14 Jun 2023 14:11:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=HaKXXifS8u6lPFfiolsrITbeQZKQRG/4qjUcE+o1Tzg=; b=VGsZra/Q4TAJKO jbdXMC2ru2RsZhmxoAqMiJBKFaqdsngvn0eVyvE9mdTVuNlfXYMEl9risvfhskTJsA+xA+/VDVjvE N2hU+zcSstm8gA/9flLL5SByO/rRHfHXPKk2onQpVFKYNp245PFWj8ByYoQNUg/1xP8ydxWtCGlYM WwxH5/xjf1kgcQQYancqTo7Sg42NFxFm7t6ATIrZZQKCb2Wtj+BKdRSr13fUDaeNOeSZOksx/kWve piq6o1zaOwUzJZS4RCOy6OvjtrgS7NbK8TUzE9rbQtbbCjYkhWlYbdTRIfYDUUg78M28byFk9qFqi Bbo+RweNTKAdl/5VI+Ig==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q9RDe-00Bs2G-2p; Wed, 14 Jun 2023 14:11:30 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q9RDc-00Bs1O-0Q; Wed, 14 Jun 2023 14:11:29 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (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 dfw.source.kernel.org (Postfix) with ESMTPS id 6CFA860E9E; Wed, 14 Jun 2023 14:11:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10F7AC433C0; Wed, 14 Jun 2023 14:11:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686751886; bh=nq3f91/c6VdnG05wknAO7CzsIzeIwd55LMS9xhs7vLc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZhJtlj5I8piICZIev7qvB69N2MRkFrUNmM4AY9KOSxdltgl+qcVmK0w/AhUDKOYUE C0naLvwDyTJX3vMjNC8e9+i7bgqJP3nnR+cfRN/EKtI25YOH2TSwU36LZazWsweF02 YGMNzwODmUGT8dkPREzGod/+rUbK65tLM4QfOSq3fgVX2NpImfyc5X1iBcneHw7wgS aWE67OFlHHdjdwxPMfJUf27XkhoC98XnYJ++XQkAMrKDt/blZeMPDlGxeoaoTED8QE EqDj0B92olx0FPba9u2ztMQCZcN18316sOzneqJzKqI8FGzRdybM2tuA29sFD9tYUy 7yV6zVzN7CwRA== Date: Wed, 14 Jun 2023 17:10:49 +0300 From: Mike Rapoport To: "Vishal Moola (Oracle)" Cc: Andrew Morton , Matthew Wilcox , 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, Hugh Dickins Subject: Re: [PATCH v4 13/34] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Message-ID: <20230614141049.GL52412@kernel.org> References: <20230612210423.18611-1-vishal.moola@gmail.com> <20230612210423.18611-14-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230612210423.18611-14-vishal.moola@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230614_071128_256160_03F960D5 X-CRM114-Status: GOOD ( 19.52 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Mon, Jun 12, 2023 at 02:04:02PM -0700, Vishal Moola (Oracle) wrote: > Creates pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(), > and pagetable_pmd_dtor() and make the original pgtable > constructor/destructors wrappers. Nit: either "creates ... makes" or "create ... make" I like the second form more. > Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) > --- > include/linux/mm.h | 56 ++++++++++++++++++++++++++++++++++------------ > 1 file changed, 42 insertions(+), 14 deletions(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index a1af7983e1bd..dc211c43610b 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2886,20 +2886,34 @@ static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; } > static inline void ptlock_free(struct ptdesc *ptdesc) {} > #endif /* USE_SPLIT_PTE_PTLOCKS */ > > -static inline bool pgtable_pte_page_ctor(struct page *page) > +static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc) > { > - if (!ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); This comment is more to patch 1 ("mm: Add PAGE_TYPE_OP folio functions") It would be better to have _pgtable here, as "table" does not necessary mean page table. With PageType SetPageTable was fine, but with folio I think it should be more explicit. I'd add a third parameter to PAGE_TYPE_OPS for that. > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pte_page_ctor(struct page *page) > +{ > + return pagetable_pte_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pte_page_dtor(struct page *page) > { > - ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pte_dtor(page_ptdesc(page)); > } > > #define pte_offset_map_lock(mm, pmd, address, ptlp) \ > @@ -2981,20 +2995,34 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd) > return ptl; > } > > -static inline bool pgtable_pmd_page_ctor(struct page *page) > +static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc) > { > - if (!pmd_ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!pmd_ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pmd_page_ctor(struct page *page) > +{ > + return pagetable_pmd_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + pmd_ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pmd_page_dtor(struct page *page) > { > - pmd_ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pmd_dtor(page_ptdesc(page)); > } > > /* > -- > 2.40.1 > > -- Sincerely yours, Mike. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6E61EEB64DB for ; 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Wed, 14 Jun 2023 14:11:31 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q9RDc-00Bs1O-0Q; Wed, 14 Jun 2023 14:11:29 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (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 dfw.source.kernel.org (Postfix) with ESMTPS id 6CFA860E9E; Wed, 14 Jun 2023 14:11:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10F7AC433C0; Wed, 14 Jun 2023 14:11:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686751886; bh=nq3f91/c6VdnG05wknAO7CzsIzeIwd55LMS9xhs7vLc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZhJtlj5I8piICZIev7qvB69N2MRkFrUNmM4AY9KOSxdltgl+qcVmK0w/AhUDKOYUE C0naLvwDyTJX3vMjNC8e9+i7bgqJP3nnR+cfRN/EKtI25YOH2TSwU36LZazWsweF02 YGMNzwODmUGT8dkPREzGod/+rUbK65tLM4QfOSq3fgVX2NpImfyc5X1iBcneHw7wgS aWE67OFlHHdjdwxPMfJUf27XkhoC98XnYJ++XQkAMrKDt/blZeMPDlGxeoaoTED8QE EqDj0B92olx0FPba9u2ztMQCZcN18316sOzneqJzKqI8FGzRdybM2tuA29sFD9tYUy 7yV6zVzN7CwRA== Date: Wed, 14 Jun 2023 17:10:49 +0300 From: Mike Rapoport To: "Vishal Moola (Oracle)" Cc: Andrew Morton , Matthew Wilcox , 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, Hugh Dickins Subject: Re: [PATCH v4 13/34] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Message-ID: <20230614141049.GL52412@kernel.org> References: <20230612210423.18611-1-vishal.moola@gmail.com> <20230612210423.18611-14-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230612210423.18611-14-vishal.moola@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230614_071128_256160_03F960D5 X-CRM114-Status: GOOD ( 19.52 ) X-BeenThere: linux-um@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-um" Errors-To: linux-um-bounces+linux-um=archiver.kernel.org@lists.infradead.org On Mon, Jun 12, 2023 at 02:04:02PM -0700, Vishal Moola (Oracle) wrote: > Creates pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(), > and pagetable_pmd_dtor() and make the original pgtable > constructor/destructors wrappers. Nit: either "creates ... makes" or "create ... make" I like the second form more. > Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) > --- > include/linux/mm.h | 56 ++++++++++++++++++++++++++++++++++------------ > 1 file changed, 42 insertions(+), 14 deletions(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index a1af7983e1bd..dc211c43610b 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2886,20 +2886,34 @@ static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; } > static inline void ptlock_free(struct ptdesc *ptdesc) {} > #endif /* USE_SPLIT_PTE_PTLOCKS */ > > -static inline bool pgtable_pte_page_ctor(struct page *page) > +static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc) > { > - if (!ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); This comment is more to patch 1 ("mm: Add PAGE_TYPE_OP folio functions") It would be better to have _pgtable here, as "table" does not necessary mean page table. With PageType SetPageTable was fine, but with folio I think it should be more explicit. I'd add a third parameter to PAGE_TYPE_OPS for that. > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pte_page_ctor(struct page *page) > +{ > + return pagetable_pte_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pte_page_dtor(struct page *page) > { > - ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pte_dtor(page_ptdesc(page)); > } > > #define pte_offset_map_lock(mm, pmd, address, ptlp) \ > @@ -2981,20 +2995,34 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd) > return ptl; > } > > -static inline bool pgtable_pmd_page_ctor(struct page *page) > +static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc) > { > - if (!pmd_ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!pmd_ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pmd_page_ctor(struct page *page) > +{ > + return pagetable_pmd_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + pmd_ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pmd_page_dtor(struct page *page) > { > - pmd_ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pmd_dtor(page_ptdesc(page)); > } > > /* > -- > 2.40.1 > > -- Sincerely yours, Mike. _______________________________________________ linux-um mailing list linux-um@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-um From mboxrd@z Thu Jan 1 00:00:00 1970 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 41205EB64D8 for ; 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Thu, 15 Jun 2023 00:11:30 +1000 (AEST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (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 dfw.source.kernel.org (Postfix) with ESMTPS id 6CFA860E9E; Wed, 14 Jun 2023 14:11:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10F7AC433C0; Wed, 14 Jun 2023 14:11:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686751886; bh=nq3f91/c6VdnG05wknAO7CzsIzeIwd55LMS9xhs7vLc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZhJtlj5I8piICZIev7qvB69N2MRkFrUNmM4AY9KOSxdltgl+qcVmK0w/AhUDKOYUE C0naLvwDyTJX3vMjNC8e9+i7bgqJP3nnR+cfRN/EKtI25YOH2TSwU36LZazWsweF02 YGMNzwODmUGT8dkPREzGod/+rUbK65tLM4QfOSq3fgVX2NpImfyc5X1iBcneHw7wgS aWE67OFlHHdjdwxPMfJUf27XkhoC98XnYJ++XQkAMrKDt/blZeMPDlGxeoaoTED8QE EqDj0B92olx0FPba9u2ztMQCZcN18316sOzneqJzKqI8FGzRdybM2tuA29sFD9tYUy 7yV6zVzN7CwRA== Date: Wed, 14 Jun 2023 17:10:49 +0300 From: Mike Rapoport To: "Vishal Moola (Oracle)" Subject: Re: [PATCH v4 13/34] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Message-ID: <20230614141049.GL52412@kernel.org> References: <20230612210423.18611-1-vishal.moola@gmail.com> <20230612210423.18611-14-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230612210423.18611-14-vishal.moola@gmail.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org, linux-openrisc@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, linux-mips@vger.kernel.org, linux-csky@vger.kernel.org, linux-mm@kvack.org, linux-m68k@lists.linux-m68k.org, Hugh Dickins , Matthew Wilcox , loongarch@lists.linux.dev, sparclinux@vger.kernel.org, xen-devel@lists.xenproject.org, Andrew Morton , linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Mon, Jun 12, 2023 at 02:04:02PM -0700, Vishal Moola (Oracle) wrote: > Creates pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(), > and pagetable_pmd_dtor() and make the original pgtable > constructor/destructors wrappers. Nit: either "creates ... makes" or "create ... make" I like the second form more. > Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) > --- > include/linux/mm.h | 56 ++++++++++++++++++++++++++++++++++------------ > 1 file changed, 42 insertions(+), 14 deletions(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index a1af7983e1bd..dc211c43610b 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2886,20 +2886,34 @@ static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; } > static inline void ptlock_free(struct ptdesc *ptdesc) {} > #endif /* USE_SPLIT_PTE_PTLOCKS */ > > -static inline bool pgtable_pte_page_ctor(struct page *page) > +static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc) > { > - if (!ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); This comment is more to patch 1 ("mm: Add PAGE_TYPE_OP folio functions") It would be better to have _pgtable here, as "table" does not necessary mean page table. With PageType SetPageTable was fine, but with folio I think it should be more explicit. I'd add a third parameter to PAGE_TYPE_OPS for that. > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pte_page_ctor(struct page *page) > +{ > + return pagetable_pte_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pte_page_dtor(struct page *page) > { > - ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pte_dtor(page_ptdesc(page)); > } > > #define pte_offset_map_lock(mm, pmd, address, ptlp) \ > @@ -2981,20 +2995,34 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd) > return ptl; > } > > -static inline bool pgtable_pmd_page_ctor(struct page *page) > +static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc) > { > - if (!pmd_ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!pmd_ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pmd_page_ctor(struct page *page) > +{ > + return pagetable_pmd_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + pmd_ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pmd_page_dtor(struct page *page) > { > - pmd_ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pmd_dtor(page_ptdesc(page)); > } > > /* > -- > 2.40.1 > > -- Sincerely yours, Mike. From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DE56BEB64DB for ; Wed, 14 Jun 2023 14:11:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=gYrV12rOgy5ibjUhBK12hjVXQpRhcB56YGvg4BRx7MA=; b=QTM2kCf+1gGdQP /mdulDI5t3kZx6xogfF55lLXO3MIQKqXE0GhJsEU0iBIgAxiC+iCfFzy2n3xVcQd/6uSpgsQyu6N+ VDtjd6e6DoZ4h/nltybdqmqq40x21HrIkY7DgT++oaDNCS14hYEkKWk0NSLwxq79UjaHnIva36O9v QUfPmPjhmovtj7NUf9TILDAVhoiIdsgCY9kkFBPv99o1kKeCGxahfXiZPUpE9Qr9OjmYmR+nata1V OHT2RwZiE4oXG9OoD6yaAwZlHHg72DtUcUnFbVxFEcH9ZdFJM8hak5sLnWeMQyNmRAvG4GQ5e1QcO zKlEmkCtfOm6qWRBBcew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q9RDe-00Bs2B-1N; Wed, 14 Jun 2023 14:11:30 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q9RDc-00Bs1O-0Q; Wed, 14 Jun 2023 14:11:29 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (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 dfw.source.kernel.org (Postfix) with ESMTPS id 6CFA860E9E; Wed, 14 Jun 2023 14:11:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10F7AC433C0; Wed, 14 Jun 2023 14:11:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686751886; bh=nq3f91/c6VdnG05wknAO7CzsIzeIwd55LMS9xhs7vLc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZhJtlj5I8piICZIev7qvB69N2MRkFrUNmM4AY9KOSxdltgl+qcVmK0w/AhUDKOYUE C0naLvwDyTJX3vMjNC8e9+i7bgqJP3nnR+cfRN/EKtI25YOH2TSwU36LZazWsweF02 YGMNzwODmUGT8dkPREzGod/+rUbK65tLM4QfOSq3fgVX2NpImfyc5X1iBcneHw7wgS aWE67OFlHHdjdwxPMfJUf27XkhoC98XnYJ++XQkAMrKDt/blZeMPDlGxeoaoTED8QE EqDj0B92olx0FPba9u2ztMQCZcN18316sOzneqJzKqI8FGzRdybM2tuA29sFD9tYUy 7yV6zVzN7CwRA== Date: Wed, 14 Jun 2023 17:10:49 +0300 From: Mike Rapoport To: "Vishal Moola (Oracle)" Cc: Andrew Morton , Matthew Wilcox , 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, Hugh Dickins Subject: Re: [PATCH v4 13/34] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Message-ID: <20230614141049.GL52412@kernel.org> References: <20230612210423.18611-1-vishal.moola@gmail.com> <20230612210423.18611-14-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230612210423.18611-14-vishal.moola@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230614_071128_256160_03F960D5 X-CRM114-Status: GOOD ( 19.52 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jun 12, 2023 at 02:04:02PM -0700, Vishal Moola (Oracle) wrote: > Creates pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(), > and pagetable_pmd_dtor() and make the original pgtable > constructor/destructors wrappers. Nit: either "creates ... makes" or "create ... make" I like the second form more. > Signed-off-by: Vishal Moola (Oracle) Acked-by: Mike Rapoport (IBM) > --- > include/linux/mm.h | 56 ++++++++++++++++++++++++++++++++++------------ > 1 file changed, 42 insertions(+), 14 deletions(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index a1af7983e1bd..dc211c43610b 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2886,20 +2886,34 @@ static inline bool ptlock_init(struct ptdesc *ptdesc) { return true; } > static inline void ptlock_free(struct ptdesc *ptdesc) {} > #endif /* USE_SPLIT_PTE_PTLOCKS */ > > -static inline bool pgtable_pte_page_ctor(struct page *page) > +static inline bool pagetable_pte_ctor(struct ptdesc *ptdesc) > { > - if (!ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); This comment is more to patch 1 ("mm: Add PAGE_TYPE_OP folio functions") It would be better to have _pgtable here, as "table" does not necessary mean page table. With PageType SetPageTable was fine, but with folio I think it should be more explicit. I'd add a third parameter to PAGE_TYPE_OPS for that. > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pte_page_ctor(struct page *page) > +{ > + return pagetable_pte_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pte_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pte_page_dtor(struct page *page) > { > - ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pte_dtor(page_ptdesc(page)); > } > > #define pte_offset_map_lock(mm, pmd, address, ptlp) \ > @@ -2981,20 +2995,34 @@ static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd) > return ptl; > } > > -static inline bool pgtable_pmd_page_ctor(struct page *page) > +static inline bool pagetable_pmd_ctor(struct ptdesc *ptdesc) > { > - if (!pmd_ptlock_init(page_ptdesc(page))) > + struct folio *folio = ptdesc_folio(ptdesc); > + > + if (!pmd_ptlock_init(ptdesc)) > return false; > - __SetPageTable(page); > - inc_lruvec_page_state(page, NR_PAGETABLE); > + __folio_set_table(folio); > + lruvec_stat_add_folio(folio, NR_PAGETABLE); > return true; > } > > +static inline bool pgtable_pmd_page_ctor(struct page *page) > +{ > + return pagetable_pmd_ctor(page_ptdesc(page)); > +} > + > +static inline void pagetable_pmd_dtor(struct ptdesc *ptdesc) > +{ > + struct folio *folio = ptdesc_folio(ptdesc); > + > + pmd_ptlock_free(ptdesc); > + __folio_clear_table(folio); > + lruvec_stat_sub_folio(folio, NR_PAGETABLE); > +} > + > static inline void pgtable_pmd_page_dtor(struct page *page) > { > - pmd_ptlock_free(page_ptdesc(page)); > - __ClearPageTable(page); > - dec_lruvec_page_state(page, NR_PAGETABLE); > + pagetable_pmd_dtor(page_ptdesc(page)); > } > > /* > -- > 2.40.1 > > -- Sincerely yours, Mike. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel