From patchwork Sun Jan 30 21:18:16 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: 12730142 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 7353EC35274 for ; Sun, 30 Jan 2022 21:22:15 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 37B6F6B0089; Sun, 30 Jan 2022 16:21:58 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 305DD6B008A; Sun, 30 Jan 2022 16:21:58 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 17EA56B008C; Sun, 30 Jan 2022 16:21:58 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0107.hostedemail.com [216.40.44.107]) by kanga.kvack.org (Postfix) with ESMTP id EECC36B0089 for ; Sun, 30 Jan 2022 16:21:57 -0500 (EST) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id ABEC28249980 for ; Sun, 30 Jan 2022 21:21:57 +0000 (UTC) X-FDA: 79088225874.04.05CFDFF Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by imf18.hostedemail.com (Postfix) with ESMTP id 39C691C0006 for ; Sun, 30 Jan 2022 21:21:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643577717; x=1675113717; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=QfQ3gnydDk43tc7xRks6jpks+dE4z+Vv7IsUEppemXA=; b=gESWbdUp5wxXFR2mYQZ15D1U9FJ21ilEna3maZWGS/TQSG+hgKnJOja2 Bied3GPncJwRLIo6oWW/tEwg5VjvWTD89bYzuv3runHV2s6v2yAIgAucn f4EDS0ERcwRE276DCLVcisj7BqZarEYSEDDbQv+3uiWRIXBgnJqp+6tyM EjG6Wr/+9a2AL6E/RG+MA+Gm46LeYBmgXs3K8cOhPtm/DKb+UbGkJ1zO+ 8JbQ54gKI8XS2sqMym/JCgXatGmrGPkUeeqC2By0tEEB65Q5UArQdYr4q ijsqBWrhDE8Lf9pcC8nHICShQ7twU5JCQyj6vSLGEyigeIWwfFvVRVfo+ w==; X-IronPort-AV: E=McAfee;i="6200,9189,10243"; a="244970206" X-IronPort-AV: E=Sophos;i="5.88,329,1635231600"; d="scan'208";a="244970206" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jan 2022 13:21:56 -0800 X-IronPort-AV: E=Sophos;i="5.88,329,1635231600"; d="scan'208";a="536856770" Received: from avmallar-mobl1.amr.corp.intel.com (HELO rpedgeco-desk.amr.corp.intel.com) ([10.209.123.171]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jan 2022 13:21:55 -0800 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" , Dave Martin , Weijiang Yang , "Kirill A . Shutemov" , joao.moreira@intel.com, John Allen , kcc@google.com, eranian@google.com Cc: rick.p.edgecombe@intel.com, Yu-cheng Yu , Peter Xu Subject: [PATCH 13/35] mm: Move VM_UFFD_MINOR_BIT from 37 to 38 Date: Sun, 30 Jan 2022 13:18:16 -0800 Message-Id: <20220130211838.8382-14-rick.p.edgecombe@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220130211838.8382-1-rick.p.edgecombe@intel.com> References: <20220130211838.8382-1-rick.p.edgecombe@intel.com> X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 39C691C0006 X-Stat-Signature: h434uui7y4grh4ac3qgbesow3dujegji X-Rspam-User: nil Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=gESWbdUp; spf=none (imf18.hostedemail.com: domain of rick.p.edgecombe@intel.com has no SPF policy when checking 192.55.52.93) smtp.mailfrom=rick.p.edgecombe@intel.com; dmarc=pass (policy=none) header.from=intel.com X-HE-Tag: 1643577716-452183 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 --- 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 e1a84b1e6787..2e74c0ab6d25 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -359,7 +359,7 @@ 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