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 883FCC4332F for ; Tue, 15 Mar 2022 14:19:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349118AbiCOOU3 (ORCPT ); Tue, 15 Mar 2022 10:20:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349115AbiCOOU0 (ORCPT ); Tue, 15 Mar 2022 10:20:26 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id AA76041F9C for ; Tue, 15 Mar 2022 07:19:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1647353950; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jc+cEdEl7LGBIs1sXVyEIKh1m/fhthwqXZBcWFtK9j4=; b=CpF/XLcQRMLHjTfpTcANKJLp9uuA9p0224UiRBMBJHesdLBr3iEIrUsB8zTPiCuAt/dy9a M0wbVHHFtf4cxnDvUiRH7Hm2fc/vC3xw+VZEwxfQ3mZeRnXI0nuyKYPiheg13B/zEm15wX RF4mvFvT6jlit69kDSFWhavHt1zXT9U= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-5-Ld5KWDtUPEq6XKGoMZ7Gdw-1; Tue, 15 Mar 2022 10:19:07 -0400 X-MC-Unique: Ld5KWDtUPEq6XKGoMZ7Gdw-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 293F038008A2; Tue, 15 Mar 2022 14:19:05 +0000 (UTC) Received: from t480s.redhat.com (unknown [10.39.194.72]) by smtp.corp.redhat.com (Postfix) with ESMTP id 23B234087D7E; Tue, 15 Mar 2022 14:18:58 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Hugh Dickins , Linus Torvalds , David Rientjes , Shakeel Butt , John Hubbard , Jason Gunthorpe , Mike Kravetz , Mike Rapoport , Yang Shi , "Kirill A . Shutemov" , Matthew Wilcox , Vlastimil Babka , Jann Horn , Michal Hocko , Nadav Amit , Rik van Riel , Roman Gushchin , Andrea Arcangeli , Peter Xu , Donald Dutile , Christoph Hellwig , Oleg Nesterov , Jan Kara , Liang Zhang , Pedro Gomes , Oded Gabbay , Catalin Marinas , Will Deacon , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , linux-mm@kvack.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, David Hildenbrand Subject: [PATCH v1 2/7] mm/debug_vm_pgtable: add tests for __HAVE_ARCH_PTE_SWP_EXCLUSIVE Date: Tue, 15 Mar 2022 15:18:32 +0100 Message-Id: <20220315141837.137118-3-david@redhat.com> In-Reply-To: <20220315141837.137118-1-david@redhat.com> References: <20220315141837.137118-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Let's test that __HAVE_ARCH_PTE_SWP_EXCLUSIVE works as expected. Signed-off-by: David Hildenbrand --- mm/debug_vm_pgtable.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index db2abd9e415b..55f1a8dc716f 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -837,6 +837,19 @@ static void __init pmd_soft_dirty_tests(struct pgtable_debug_args *args) { } static void __init pmd_swap_soft_dirty_tests(struct pgtable_debug_args *args) { } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ +static void __init pte_swap_exclusive_tests(struct pgtable_debug_args *args) +{ +#ifdef __HAVE_ARCH_PTE_SWP_EXCLUSIVE + pte_t pte = pfn_pte(args->fixed_pte_pfn, args->page_prot); + + pr_debug("Validating PTE swap exclusive\n"); + pte = pte_swp_mkexclusive(pte); + WARN_ON(!pte_swp_exclusive(pte)); + pte = pte_swp_clear_exclusive(pte); + WARN_ON(pte_swp_exclusive(pte)); +#endif /* __HAVE_ARCH_PTE_SWP_EXCLUSIVE */ +} + static void __init pte_swap_tests(struct pgtable_debug_args *args) { swp_entry_t swp; @@ -1288,6 +1301,8 @@ static int __init debug_vm_pgtable(void) pte_swap_soft_dirty_tests(&args); pmd_swap_soft_dirty_tests(&args); + pte_swap_exclusive_tests(&args); + pte_swap_tests(&args); pmd_swap_tests(&args); -- 2.35.1 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 61209C433F5 for ; Tue, 15 Mar 2022 14:21:01 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4KHwYm0Qwgz3bm7 for ; Wed, 16 Mar 2022 01:21:00 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=CpF/XLcQ; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=CpF/XLcQ; 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Tue, 15 Mar 2022 14:19:05 +0000 (UTC) Received: from t480s.redhat.com (unknown [10.39.194.72]) by smtp.corp.redhat.com (Postfix) with ESMTP id 23B234087D7E; Tue, 15 Mar 2022 14:18:58 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Subject: [PATCH v1 2/7] mm/debug_vm_pgtable: add tests for __HAVE_ARCH_PTE_SWP_EXCLUSIVE Date: Tue, 15 Mar 2022 15:18:32 +0100 Message-Id: <20220315141837.137118-3-david@redhat.com> In-Reply-To: <20220315141837.137118-1-david@redhat.com> References: <20220315141837.137118-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 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: x86@kernel.org, Jan Kara , David Hildenbrand , Catalin Marinas , Yang Shi , Dave Hansen , Peter Xu , Michal Hocko , linux-mm@kvack.org, Donald Dutile , Liang Zhang , Borislav Petkov , Alexander Gordeev , Will Deacon , Christoph Hellwig , Paul Mackerras , Andrea Arcangeli , linux-s390@vger.kernel.org, Vasily Gorbik , Rik van Riel , Hugh Dickins , Matthew Wilcox , Mike Rapoport , Ingo Molnar , linux-arm-kernel@lists.infradead.org, Jason Gunthorpe , David Rientjes , Pedro Gomes , Jann Horn , John Hubbard , Heiko Carstens , Shakeel Butt , Thomas Gleixner , Vlastimil Babka , Oded Gabbay , linuxppc-dev@lists.ozlabs.org, Oleg Nesterov , Nadav Amit , Andrew Morton , Linus Torvalds , Roman Gushchin , "Kirill A . Shutemov" , Mike Kravetz Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Let's test that __HAVE_ARCH_PTE_SWP_EXCLUSIVE works as expected. Signed-off-by: David Hildenbrand --- mm/debug_vm_pgtable.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index db2abd9e415b..55f1a8dc716f 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -837,6 +837,19 @@ static void __init pmd_soft_dirty_tests(struct pgtable_debug_args *args) { } static void __init pmd_swap_soft_dirty_tests(struct pgtable_debug_args *args) { } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ +static void __init pte_swap_exclusive_tests(struct pgtable_debug_args *args) +{ +#ifdef __HAVE_ARCH_PTE_SWP_EXCLUSIVE + pte_t pte = pfn_pte(args->fixed_pte_pfn, args->page_prot); + + pr_debug("Validating PTE swap exclusive\n"); + pte = pte_swp_mkexclusive(pte); + WARN_ON(!pte_swp_exclusive(pte)); + pte = pte_swp_clear_exclusive(pte); + WARN_ON(pte_swp_exclusive(pte)); +#endif /* __HAVE_ARCH_PTE_SWP_EXCLUSIVE */ +} + static void __init pte_swap_tests(struct pgtable_debug_args *args) { swp_entry_t swp; @@ -1288,6 +1301,8 @@ static int __init debug_vm_pgtable(void) pte_swap_soft_dirty_tests(&args); pmd_swap_soft_dirty_tests(&args); + pte_swap_exclusive_tests(&args); + pte_swap_tests(&args); pmd_swap_tests(&args); -- 2.35.1 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 4E982C433FE for ; Tue, 15 Mar 2022 14:20:36 +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:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nB8bcYSJoDehOB5pCoD8A28E9PoYdLf6Qd2Uw0rne70=; b=j0Cl3UDk59xILh hGXg3gOmV7pwRMbQeDsZJWOcbND42CcNSQTVPrgulDPAuprJ4FrGUf0Mt+E170lQWwdX8stgRQYul H5FCD+Q5bb/TsEK23TNtL02X1PoX2T7LGMMsJ8o7s+dpEJ2bg8jTqtKVRshLhEmVbnnwr+n6PjqAc 8zWY/U7+9B7FMb2tzEI6RNYD5MxjR9BPuOGsFtyBHD2njbgwb2v0eCxIJCvGfvF2eYIWAK5CAHWuT YFn2dnk0brZ55NBJOHLC8WHLfvTG/uepuZ52HxTvArI6yub4RpRu5oHiAf4PYEe3P/haaJQalNjds wE9MKVteheImO3YQLdUw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nU81C-009OA1-40; Tue, 15 Mar 2022 14:19:22 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nU80z-009O4B-Bu for linux-arm-kernel@lists.infradead.org; Tue, 15 Mar 2022 14:19:10 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1647353948; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jc+cEdEl7LGBIs1sXVyEIKh1m/fhthwqXZBcWFtK9j4=; b=SS4AxzgDSat9+x6H4wOyqG6OGee/UimAgk7wTCk9g5C16ZshHYdfI84Td702Yq1I00DfwT OQJnxIzWZR0vFi5r8lfYxWSqXbBpOhpWpPYDyeNMi8EN8PtLAwv8KKPEOX/fUlMW02/ICF R9YPJp48pDUSWYucEMtGkYdQUUIr7gA= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-5-Ld5KWDtUPEq6XKGoMZ7Gdw-1; Tue, 15 Mar 2022 10:19:07 -0400 X-MC-Unique: Ld5KWDtUPEq6XKGoMZ7Gdw-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 293F038008A2; Tue, 15 Mar 2022 14:19:05 +0000 (UTC) Received: from t480s.redhat.com (unknown [10.39.194.72]) by smtp.corp.redhat.com (Postfix) with ESMTP id 23B234087D7E; Tue, 15 Mar 2022 14:18:58 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Hugh Dickins , Linus Torvalds , David Rientjes , Shakeel Butt , John Hubbard , Jason Gunthorpe , Mike Kravetz , Mike Rapoport , Yang Shi , "Kirill A . Shutemov" , Matthew Wilcox , Vlastimil Babka , Jann Horn , Michal Hocko , Nadav Amit , Rik van Riel , Roman Gushchin , Andrea Arcangeli , Peter Xu , Donald Dutile , Christoph Hellwig , Oleg Nesterov , Jan Kara , Liang Zhang , Pedro Gomes , Oded Gabbay , Catalin Marinas , Will Deacon , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , linux-mm@kvack.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, David Hildenbrand Subject: [PATCH v1 2/7] mm/debug_vm_pgtable: add tests for __HAVE_ARCH_PTE_SWP_EXCLUSIVE Date: Tue, 15 Mar 2022 15:18:32 +0100 Message-Id: <20220315141837.137118-3-david@redhat.com> In-Reply-To: <20220315141837.137118-1-david@redhat.com> References: <20220315141837.137118-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220315_071909_544101_306399A2 X-CRM114-Status: GOOD ( 14.03 ) 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 Let's test that __HAVE_ARCH_PTE_SWP_EXCLUSIVE works as expected. Signed-off-by: David Hildenbrand --- mm/debug_vm_pgtable.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index db2abd9e415b..55f1a8dc716f 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -837,6 +837,19 @@ static void __init pmd_soft_dirty_tests(struct pgtable_debug_args *args) { } static void __init pmd_swap_soft_dirty_tests(struct pgtable_debug_args *args) { } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ +static void __init pte_swap_exclusive_tests(struct pgtable_debug_args *args) +{ +#ifdef __HAVE_ARCH_PTE_SWP_EXCLUSIVE + pte_t pte = pfn_pte(args->fixed_pte_pfn, args->page_prot); + + pr_debug("Validating PTE swap exclusive\n"); + pte = pte_swp_mkexclusive(pte); + WARN_ON(!pte_swp_exclusive(pte)); + pte = pte_swp_clear_exclusive(pte); + WARN_ON(pte_swp_exclusive(pte)); +#endif /* __HAVE_ARCH_PTE_SWP_EXCLUSIVE */ +} + static void __init pte_swap_tests(struct pgtable_debug_args *args) { swp_entry_t swp; @@ -1288,6 +1301,8 @@ static int __init debug_vm_pgtable(void) pte_swap_soft_dirty_tests(&args); pmd_swap_soft_dirty_tests(&args); + pte_swap_exclusive_tests(&args); + pte_swap_tests(&args); pmd_swap_tests(&args); -- 2.35.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel