From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:36790 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753147AbdLDIs0 (ORCPT ); Mon, 4 Dec 2017 03:48:26 -0500 Subject: Patch "IB/core: disable memory registration of filesystem-dax vmas" has been added to the 4.14-stable tree To: dan.j.williams@intel.com, akpm@linux-foundation.org, dledford@redhat.com, gregkh@linuxfoundation.org, hal.rosenstock@gmail.com, hch@lst.de, inki.dae@samsung.com, jack@suse.cz, jgg@mellanox.com, jmoyer@redhat.com, jy0922.shim@samsung.com, kyungmin.park@samsung.com, mchehab@kernel.org, mgorman@suse.de, ross.zwisler@linux.intel.com, sean.hefty@intel.com, sw0312.kim@samsung.com, torvalds@linux-foundation.org, vbabka@suse.cz Cc: , From: Date: Mon, 04 Dec 2017 09:48:27 +0100 Message-ID: <15123773075969@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled IB/core: disable memory registration of filesystem-dax vmas to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ib-core-disable-memory-registration-of-filesystem-dax-vmas.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 5f1d43de54164dcfb9bfa542fcc92c1e1a1b6c1d Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 29 Nov 2017 16:10:47 -0800 Subject: IB/core: disable memory registration of filesystem-dax vmas From: Dan Williams commit 5f1d43de54164dcfb9bfa542fcc92c1e1a1b6c1d upstream. Until there is a solution to the dma-to-dax vs truncate problem it is not safe to allow RDMA to create long standing memory registrations against filesytem-dax vmas. Link: http://lkml.kernel.org/r/151068941011.7446.7766030590347262502.stgit@dwillia2-desk3.amr.corp.intel.com Fixes: 3565fce3a659 ("mm, x86: get_user_pages() for dax mappings") Signed-off-by: Dan Williams Reported-by: Christoph Hellwig Reviewed-by: Christoph Hellwig Acked-by: Jason Gunthorpe Acked-by: Doug Ledford Cc: Sean Hefty Cc: Hal Rosenstock Cc: Jeff Moyer Cc: Ross Zwisler Cc: Inki Dae Cc: Jan Kara Cc: Joonyoung Shim Cc: Kyungmin Park Cc: Mauro Carvalho Chehab Cc: Mel Gorman Cc: Seung-Woo Kim Cc: Vlastimil Babka Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/core/umem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -191,7 +191,7 @@ struct ib_umem *ib_umem_get(struct ib_uc sg_list_start = umem->sg_head.sgl; while (npages) { - ret = get_user_pages(cur_base, + ret = get_user_pages_longterm(cur_base, min_t(unsigned long, npages, PAGE_SIZE / sizeof (struct page *)), gup_flags, page_list, vma_list); Patches currently in stable-queue which might be from dan.j.williams@intel.com are queue-4.14/mm-hugetlbfs-introduce-split-to-vm_operations_struct.patch queue-4.14/ib-core-disable-memory-registration-of-filesystem-dax-vmas.patch queue-4.14/mm-introduce-get_user_pages_longterm.patch queue-4.14/mm-fail-get_vaddr_frames-for-filesystem-dax-mappings.patch queue-4.14/device-dax-implement-split-to-catch-invalid-munmap-attempts.patch queue-4.14/v4l2-disable-filesystem-dax-mapping-support.patch queue-4.14/mm-fix-device-dax-pud-write-faults-triggered-by-get_user_pages.patch queue-4.14/mm-madvise.c-fix-madvise-infinite-loop-under-special-circumstances.patch