From patchwork Fri Jun 4 07:43:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ming Lin X-Patchwork-Id: 12299077 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38E99C07E94 for ; Fri, 4 Jun 2021 07:43:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id CE294613AE for ; Fri, 4 Jun 2021 07:43:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CE294613AE Authentication-Results: mail.kernel.org; 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Fri, 4 Jun 2021 07:43:22 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 0DA2F613AE; Fri, 4 Jun 2021 07:43:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1622792614; bh=WrDpt4hAcOHkwVevesF63swf+VlR+oxSw38ZXyr++TM=; h=From:To:Cc:Subject:Date:From; b=FOM0bCh2FbV/zHyahOdf1uYgAIDe3d9D1Gg/1CDo0bklPT3ktjNiHyXcmTQe/+sVB 3ATjIyEJ4xuCdDig+H/DSdnN024YaTne/0ITy/Ytiyj0Q2LQ10lYGqt6FdAJ0wbKaT yJukzlWtlJvQ0WmK5Fx3DMC9oHAT3nk7i8OEvSRRgWQQEmB07OqyjG+zzYCg5zwTA/ qi1TpLLvvgwMc/zhgDU+ZsRPq2y2BdwHMVbcTjE3dPm/YvDZsomRktHAk8gWcvPAoV 4lYVhvUcs8HwNjCbwcinB8ERqZvkY9Fc45u00HsgoXNqddPq+fz8LbyYMStn3LhU0s yqOb5UgVgZ+Pw== From: Ming Lin To: Linus Torvalds , Hugh Dickins , Simon Ser , Matthew Wilcox Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org Subject: [PATCH v2 0/2] mm: support NOSIGBUS on fault of mmap Date: Fri, 4 Jun 2021 00:43:20 -0700 Message-Id: <1622792602-40459-1-git-send-email-mlin@kernel.org> X-Mailer: git-send-email 1.8.3.1 Authentication-Results: imf06.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=FOM0bCh2; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf06.hostedemail.com: domain of mlin@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=mlin@kernel.org X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: E9280C00777B X-Stat-Signature: 4717mhaa1fasjzptpb7a8zfmwdn3u16q X-HE-Tag: 1622792602-201178 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: These 2 patches are based on the discussion of "Sealed memfd & no-fault mmap" at https://bit.ly/3pdwOGR v2: - make MAP_NOSIGBUS generic instead of being restricted to shmem - use do_anonymous_page() to insert zero page - fix build warnings/errors reported by LKP test robot v1: https://lkml.org/lkml/2021/6/1/1076 Ming Lin (2): mm: make "vm_flags" be an u64 mm: adds NOSIGBUS extension to mmap() arch/arm64/Kconfig | 1 - arch/parisc/include/uapi/asm/mman.h | 1 + arch/powerpc/Kconfig | 1 - arch/x86/Kconfig | 1 - drivers/android/binder.c | 6 +- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_events.c | 2 +- drivers/infiniband/hw/hfi1/file_ops.c | 2 +- drivers/infiniband/hw/qib/qib_file_ops.c | 4 +- fs/exec.c | 2 +- fs/userfaultfd.c | 6 +- include/linux/huge_mm.h | 4 +- include/linux/ksm.h | 4 +- include/linux/mm.h | 108 +++++++++++++-------------- include/linux/mm_types.h | 6 +- include/linux/mman.h | 5 +- include/uapi/asm-generic/mman-common.h | 1 + mm/Kconfig | 2 - mm/debug.c | 4 +- mm/khugepaged.c | 2 +- mm/ksm.c | 2 +- mm/madvise.c | 2 +- mm/memory.c | 15 +++- mm/mmap.c | 14 ++-- mm/mprotect.c | 4 +- mm/mremap.c | 2 +- tools/include/uapi/asm-generic/mman-common.h | 1 + 28 files changed, 108 insertions(+), 98 deletions(-)