From patchwork Thu Sep 29 22:29:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Edgecombe, Rick P" X-Patchwork-Id: 12994667 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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3AB7EC43219 for ; Thu, 29 Sep 2022 22:30:14 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CD89B8D0007; Thu, 29 Sep 2022 18:30:13 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BE8B68D0001; Thu, 29 Sep 2022 18:30:13 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A61C48D0007; Thu, 29 Sep 2022 18:30:13 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 998F78D0001 for ; Thu, 29 Sep 2022 18:30:13 -0400 (EDT) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 4FD28ABA9A for ; Thu, 29 Sep 2022 22:30:13 +0000 (UTC) X-FDA: 79966567506.13.78F85B4 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by imf12.hostedemail.com (Postfix) with ESMTP id B482E40012 for ; Thu, 29 Sep 2022 22:30:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1664490612; x=1696026612; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=vKTf+AsczWlZQi59ytE2TWI1uBC+j04xvFTJcZyikik=; b=W02eGnAgGZOC4WWfVOPB4xnKjVdz/aU30rQm2aP2U5nfgDa5+g6GX7Nc KGP8r5wv5XaAKdaHEefO6HLKJ0PF/99U3oq38XAhomDJMfsr+jtSO4/cL pBpDX3zvb1Iwj9KUbFGleZi/58KNHtbQTGb0G66jnqZprvd0N9w5tHalK rtjkz6vRnF2E+usM/OrJBHNtFhF67YuBAT9lwGOukd3wfZQjHucYIyX2A 15CEf56Dy+hbGIPAOKEmBTm5eC1Rww7Luija1R+2YUHM97QyR9Rj5f1Fp jO+pLmy7FpsPcVyOtsp7ru41fldX6Nhk/o2YQmWL2PCUem2A3mHdxWDSJ g==; X-IronPort-AV: E=McAfee;i="6500,9779,10485"; a="328420434" X-IronPort-AV: E=Sophos;i="5.93,356,1654585200"; d="scan'208";a="328420434" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Sep 2022 15:30:12 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10485"; a="691016195" X-IronPort-AV: E=Sophos;i="5.93,356,1654585200"; d="scan'208";a="691016195" Received: from sergungo-mobl.amr.corp.intel.com (HELO rpedgeco-desk.amr.corp.intel.com) ([10.251.25.88]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Sep 2022 15:30:10 -0700 From: Rick Edgecombe To: x86@kernel.org, "H . Peter Anvin" , Thomas Gleixner , Ingo Molnar , linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org, Arnd Bergmann , Andy Lutomirski , Balbir Singh , Borislav Petkov , Cyrill Gorcunov , Dave Hansen , Eugene Syromiatnikov , Florian Weimer , "H . J . Lu" , Jann Horn , Jonathan Corbet , Kees Cook , Mike Kravetz , Nadav Amit , Oleg Nesterov , Pavel Machek , Peter Zijlstra , Randy Dunlap , "Ravi V . Shankar" , Weijiang Yang , "Kirill A . Shutemov" , joao.moreira@intel.com, John Allen , kcc@google.com, eranian@google.com, rppt@kernel.org, jamorris@linux.microsoft.com, dethoma@microsoft.com Cc: rick.p.edgecombe@intel.com, Yu-cheng Yu , Peter Xu Subject: [PATCH v2 13/39] mm: Move VM_UFFD_MINOR_BIT from 37 to 38 Date: Thu, 29 Sep 2022 15:29:10 -0700 Message-Id: <20220929222936.14584-14-rick.p.edgecombe@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220929222936.14584-1-rick.p.edgecombe@intel.com> References: <20220929222936.14584-1-rick.p.edgecombe@intel.com> ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1664490613; a=rsa-sha256; cv=none; b=m6KTc8rTJDG0C8t0fig8Pnw6wQ8SwZq3rB+QORM6wKk/SBfjppOamL7ZmXRx62zAhVriAN 7c0+H/XYx3DaLM2jr0ps9z6O+sPVVb50XzSZIW+Y7GBKyd9WjqmDxpHjVJ1eYmm4TkdDRM QW6dWo5OqjCK6Xzxtl0nlQedvIIkSfA= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=W02eGnAg; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf12.hostedemail.com: domain of rick.p.edgecombe@intel.com designates 192.55.52.88 as permitted sender) smtp.mailfrom=rick.p.edgecombe@intel.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1664490613; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references:dkim-signature; bh=jypyb0PivqULfUeLI/7ij5TbVGZAEVUq6T/gxHCECB8=; b=hOsuWX6n1x55ZxM0TGb0z08FGyPaPfotHPVWqUxUQHfYYyc26mKEe3l1jq2riwWu6eZstL L35ufrYdaH2511Sp8UlZI/BkbVoCW1xM5mWEIHtA0E75hLNht0k2Y8oQa5INWByjAaWBx5 VwSbwk99CUCeqk+LkiF8ItxAwuhxRnM= X-Rspamd-Queue-Id: B482E40012 X-Rspam-User: Authentication-Results: imf12.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b=W02eGnAg; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf12.hostedemail.com: domain of rick.p.edgecombe@intel.com designates 192.55.52.88 as permitted sender) smtp.mailfrom=rick.p.edgecombe@intel.com X-Rspamd-Server: rspam03 X-Stat-Signature: jjpigqwqep71kw1j4e36zcn6b3stoujj X-HE-Tag: 1664490612-379413 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Yu-cheng Yu To introduce VM_SHADOW_STACK as VM_HIGH_ARCH_BIT (37), and make all VM_HIGH_ARCH_BITs stay together, move VM_UFFD_MINOR_BIT from 37 to 38. Signed-off-by: Yu-cheng Yu Reviewed-by: Axel Rasmussen Signed-off-by: Rick Edgecombe Cc: Peter Xu Cc: Mike Kravetz Reviewed-by: Kees Cook Acked-by: Peter Xu --- include/linux/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 21f8b27bd9fd..be80fc827212 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -365,7 +365,7 @@ extern unsigned int kobjsize(const void *objp); #endif #ifdef CONFIG_HAVE_ARCH_USERFAULTFD_MINOR -# define VM_UFFD_MINOR_BIT 37 +# define VM_UFFD_MINOR_BIT 38 # define VM_UFFD_MINOR BIT(VM_UFFD_MINOR_BIT) /* UFFD minor faults */ #else /* !CONFIG_HAVE_ARCH_USERFAULTFD_MINOR */ # define VM_UFFD_MINOR VM_NONE