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 A3B87C352A1 for ; Thu, 1 Dec 2022 00:07:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230350AbiLAAHx (ORCPT ); Wed, 30 Nov 2022 19:07:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52506 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230256AbiLAAFw (ORCPT ); Wed, 30 Nov 2022 19:05:52 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CB699950C6 for ; Wed, 30 Nov 2022 16:02:21 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1320D61E6C for ; Thu, 1 Dec 2022 00:02:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2D12FC433D6; Thu, 1 Dec 2022 00:02:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1669852940; bh=o8Uz7vnf4j3+IJ9yOcvk4sm2xbmR18jLlHkVSkKUUWs=; h=Date:To:From:Subject:From; b=hKaP3KrVgyvxDseviY9ZktIevcUahQZWNFoenLdMN11aWqX2eIWvuXbdMwS8ske8m nl59adlGvRogLXpEx9YWbh/LgZttqxktxfb3l1adJYxXgydyqYYuE/AoaFIeFhx8Iw 5QQO5yXvcup9C45F0iyaK+zzT4Y/g/Gc8dyHz720= Date: Wed, 30 Nov 2022 16:02:19 -0800 To: mm-commits@vger.kernel.org, mchehab@kernel.org, hverkuil-cisco@xs4all.nl, awalls@md.metrocast.net, david@redhat.com, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] media-pci-ivtv-remove-foll_force-usage.patch removed from -mm tree Message-Id: <20221201000220.2D12FC433D6@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: media: pci/ivtv: remove FOLL_FORCE usage has been removed from the -mm tree. Its filename was media-pci-ivtv-remove-foll_force-usage.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: David Hildenbrand Subject: media: pci/ivtv: remove FOLL_FORCE usage Date: Wed, 16 Nov 2022 11:26:54 +0100 FOLL_FORCE is really only for ptrace access. R/O pinning a page is supposed to fail if the VMA misses proper access permissions (no VM_READ). Let's just remove FOLL_FORCE usage here; there would have to be a pretty good reason to allow arbitrary drivers to R/O pin pages in a PROT_NONE VMA. Most probably, FOLL_FORCE usage is just some legacy leftover. Link: https://lkml.kernel.org/r/20221116102659.70287-16-david@redhat.com Signed-off-by: David Hildenbrand Acked-by: Hans Verkuil Cc: Andy Walls Cc: Mauro Carvalho Chehab Signed-off-by: Andrew Morton --- drivers/media/pci/ivtv/ivtv-udma.c | 2 +- drivers/media/pci/ivtv/ivtv-yuv.c | 5 ++--- 2 files changed, 3 insertions(+), 4 deletions(-) --- a/drivers/media/pci/ivtv/ivtv-udma.c~media-pci-ivtv-remove-foll_force-usage +++ a/drivers/media/pci/ivtv/ivtv-udma.c @@ -115,7 +115,7 @@ int ivtv_udma_setup(struct ivtv *itv, un /* Pin user pages for DMA Xfer */ err = pin_user_pages_unlocked(user_dma.uaddr, user_dma.page_count, - dma->map, FOLL_FORCE); + dma->map, 0); if (user_dma.page_count != err) { IVTV_DEBUG_WARN("failed to map user pages, returned %d instead of %d\n", --- a/drivers/media/pci/ivtv/ivtv-yuv.c~media-pci-ivtv-remove-foll_force-usage +++ a/drivers/media/pci/ivtv/ivtv-yuv.c @@ -63,12 +63,11 @@ static int ivtv_yuv_prep_user_dma(struct /* Pin user pages for DMA Xfer */ y_pages = pin_user_pages_unlocked(y_dma.uaddr, - y_dma.page_count, &dma->map[0], FOLL_FORCE); + y_dma.page_count, &dma->map[0], 0); uv_pages = 0; /* silence gcc. value is set and consumed only if: */ if (y_pages == y_dma.page_count) { uv_pages = pin_user_pages_unlocked(uv_dma.uaddr, - uv_dma.page_count, &dma->map[y_pages], - FOLL_FORCE); + uv_dma.page_count, &dma->map[y_pages], 0); } if (y_pages != y_dma.page_count || uv_pages != uv_dma.page_count) { _ Patches currently in -mm which might be from david@redhat.com are selftests-vm-add-ksm-unmerge-tests.patch mm-pagewalk-dont-trigger-test_walk-in-walk_page_vma.patch selftests-vm-add-test-to-measure-madv_unmergeable-performance.patch mm-ksm-simplify-break_ksm-to-not-rely-on-vm_fault_write.patch mm-remove-vm_fault_write.patch mm-ksm-fix-ksm-cow-breaking-with-userfaultfd-wp-via-fault_flag_unshare.patch mm-pagewalk-add-walk_page_range_vma.patch mm-ksm-convert-break_ksm-to-use-walk_page_range_vma.patch mm-gup-remove-foll_migration.patch