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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BBB19F417F3 for ; Mon, 9 Mar 2026 15:19:15 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 23E9A6B0088; Mon, 9 Mar 2026 11:19:15 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 200136B008A; Mon, 9 Mar 2026 11:19:15 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 12C8D6B008C; Mon, 9 Mar 2026 11:19:15 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 029466B0088 for ; Mon, 9 Mar 2026 11:19:15 -0400 (EDT) Received: from smtpin16.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id CCD161A01CD for ; Mon, 9 Mar 2026 15:19:14 +0000 (UTC) X-FDA: 84526883028.16.1DF356C Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf07.hostedemail.com (Postfix) with ESMTP id 56CCA4000F for ; Mon, 9 Mar 2026 15:19:13 +0000 (UTC) Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=l1HYB2V0; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf07.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1773069553; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:references:dkim-signature; bh=13W3+3LFMinj6FPLvnxSJnn9lYgENZeNMmdBWOMyKC0=; b=ahPtDwUW3TDTE1S+/tViPs2kWH9a19jnI2wwGtuNRt6XesS/uST1Nyzg6KZZlBRW6D0FSu fbvyb5lUDp+OhDfWxJ/TA6zMcc4QL6xIuyOSMLOBkoKpP3dBp7KVx3dp+j44CzohXonkkG EJioCGRNkOmaOuCizXxIvXL6ByiVpDk= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1773069553; a=rsa-sha256; cv=none; b=0P0oWmMxIgupLX/x2JSDbnvkEwq+cb1yVcEO/w6QNurvSTm6tqDGlMaKTyNMLgnxsvnyi/ SghAHXcyIZTLQ0oXRy6zVJWKlzZzNVPyFjiR5iO2h6o3BluIzj5VFJKRoh48NFIlVj9cAF kCwtPhQNJVTjcjnAPFhqxeoS2WnqnpQ= ARC-Authentication-Results: i=1; imf07.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=l1HYB2V0; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf07.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id D639460054; Mon, 9 Mar 2026 15:19:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A9A9EC2BC86; Mon, 9 Mar 2026 15:19:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773069552; bh=U/h2huN/IK33EUYYoVbeCNOLTX65WGNBH1yEJmt4qPQ=; h=From:To:Cc:Subject:Date:From; b=l1HYB2V04oJ/S42Zu9JUsjv5Owzl7dWIJVg9XjlpPgIAXwhiZ81EH5q+dmoG8nVzW xKsIZQ0B9wi04tzX/z93YqUCHDJyEHEwxG4VlhASvbttYe7KGDuSCXkCLxBOhnpJY5 nYGMxzAJSQYtcmc82vcKd8/t+YmFKoNv+3huhkBL7y2Psz1c6sncJwBqMSLrJbdDxw d7KraB89RTyGWDDFgnObhpEIBcPuRjdrpSHqBWlf3lqg1I4xb5kZ1dXqVEVCaClf/y YCZDuxk4gPWFoBjI5H/fFusUYLrVRRL0VEiQCJ5LAMe9ThZsh5l2H8AzQ83CNCDS+d gQvEe4ITMwnGQ== From: "David Hildenbrand (Arm)" To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, "David Hildenbrand (Arm)" , Andrew Morton , Madhavan Srinivasan , Nicholas Piggin , Michael Ellerman , "Christophe Leroy (CS GROUP)" , Muchun Song , Oscar Salvador , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jann Horn , Pedro Falcato , Paolo Bonzini , Dan Williams Subject: [PATCH v2 0/4] mm: move vma_(kernel|mmu)_pagesize() out of hugetlb.c Date: Mon, 9 Mar 2026 16:18:57 +0100 Message-ID: <20260309151901.123947-1-david@kernel.org> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 56CCA4000F X-Stat-Signature: pd1pbkemphzjkdkhwn4mcfbfzyoi3awd X-Rspam-User: X-HE-Tag: 1773069553-685174 X-HE-Meta: U2FsdGVkX18u9Ms8TJAO2aK4CQ1IBKzQqsnVE4L+kAlICy92JD58jZs06irgHXQxQYvkGDKk9yPYiLxmFt/R4EbiVP9rAl1inwm6yLYQAQL53ynIePeu6Yt9t5FUS8YRfVJt8yO0bxPgau6ZbtaoQq6xxD5AccjhONc8pgci80sk+ze3P7wSCTdy0VVYfHjxeOyNuXWvQQ+9VW6JvbX53Dho+nIA8I0dzeSTRLf2oCYl9NGymyUYZ5PdViH6zzqrfD9a3FGckCTFCVhORaw8EfwLUpFmXtD4dOa7zq7DdnOcUPTfhSMUOTqfVyWxUGiy62LAh0kUnjeIAwK/JCmaZO6YaccXhmJuN+mX2FY2IjwBhINTBGKPJ7pgmQwHM3RG73nDAPov3FiKDTR9pgIceVfeGm3c/mUMsURwjiUrZ+gl5gcUYXJ0+1d/kz3SCfM1zD919K+eQwyLxNhD9V6aVNtBb16DeCHTs/8DhCSMI8ylaOodMTaA5ZzLUkMlufKebvsMK/+kH22Gx4v45wwP5j+Ja8YtXpJ+iWxseSHTnupY0oMXAUWBx27bnxsAFpFsxR/EXpRkP5pK8/VRd8V9MBxdaDBugy8+nZyZJgpCxVq7I9D8QCP1g1hv6bZ+25fZ77VPSy4ZWtYgKO5190oVhR2/I8Mbq78cm7eibpkLnkhO+otM3R7Xf1BKDb/imGdvICxZ9dZGkU4gvpf4x/ntVwrRAEEFk3wvseVP/k+PfilCmDiCIZVLsFFobyK1NlLy3Zvaw1I4eGH6WBVX06DXBUYvf/68kQWxfyMeVAocYMPHoc/tX5yJV500X3c6Yv+gveDYMZWrCVzhFzD/+kaObupYqNhCKnnjERQgC+qOVBKrr5fd4tIbQvYndFF/fTpag2VjfQjVlGrZSgEdoskv3EjlJxSRMoZXXPos0RwOPVsVpEM/tX+UKQv+c5kAAFJRz51v0CZRWWJ2DbEe1ou G1qEm01j 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Looking into vma_(kernel|mmu)_pagesize(), I realized that there is one scenario where DAX would not do the right thing when the kernel is not compiled with hugetlb support. Without hugetlb support, vma_(kernel|mmu)_pagesize() will always return PAGE_SIZE instead of using the ->pagesize() result provided by dax-device code. Fix that by moving vma_kernel_pagesize() to core MM code, where it belongs. I don't think this is stable material, but am not 100% sure. Also, move vma_mmu_pagesize() while at it. Remove the unnecessary hugetlb.h inclusion from KVM code. Cross-compiled heavily. v1 -> v2: * Fixup VMA test in patch #2 * Actually CC all people listed below on all patches. Cc: Andrew Morton Cc: Madhavan Srinivasan Cc: Nicholas Piggin Cc: Michael Ellerman Cc: "Christophe Leroy (CS GROUP)" Cc: Muchun Song Cc: Oscar Salvador Cc: Lorenzo Stoakes Cc: "Liam R. Howlett" Cc: Vlastimil Babka Cc: Mike Rapoport Cc: Suren Baghdasaryan Cc: Michal Hocko Cc: Jann Horn Cc: Pedro Falcato Cc: Paolo Bonzini Cc: Dan Williams David Hildenbrand (Arm) (4): mm: move vma_kernel_pagesize() from hugetlb to mm.h mm: move vma_mmu_pagesize() from hugetlb to vma.c KVM: remove hugetlb.h inclusion KVM: PPC: remove hugetlb.h inclusion arch/powerpc/kvm/book3s_hv.c | 1 - include/linux/hugetlb.h | 14 -------------- include/linux/mm.h | 22 ++++++++++++++++++++++ mm/hugetlb.c | 28 ---------------------------- mm/vma.c | 21 +++++++++++++++++++++ tools/testing/vma/include/custom.h | 5 +++++ virt/kvm/kvm_main.c | 1 - 7 files changed, 48 insertions(+), 44 deletions(-) base-commit: f75825cdfc4c5477cffcfd2cafa4e5ce5aa67f13 -- 2.43.0