From patchwork Sat Apr 15 09:08:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Stoakes X-Patchwork-Id: 13212352 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 AD572C7619A for ; Sat, 15 Apr 2023 09:09:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229841AbjDOJJJ (ORCPT ); Sat, 15 Apr 2023 05:09:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230017AbjDOJIu (ORCPT ); Sat, 15 Apr 2023 05:08:50 -0400 Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C79349740; Sat, 15 Apr 2023 02:08:47 -0700 (PDT) Received: by mail-wm1-x334.google.com with SMTP id d8-20020a05600c3ac800b003ee6e324b19so10819174wms.1; Sat, 15 Apr 2023 02:08:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1681549726; x=1684141726; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=8GS8ed+C9TZSDKqE7yJs3rXmG1XU+tjMZxFV1EPCP0I=; b=b454/ADSubR+UtZwD/vd9/bxU7eI6S5iNJ+h+0UiN9FgDora+ApBhUaT3SSlJPj557 Wr3AFdfbJaL+aizieInN5iM4WcDgKnRveo/2NyepsbPQmZF74KcuE7RuIOiyD6ggtXa6 ALOo/15uJ0W2QbV3lcS061wfIQnR61bEBb8pnD6aBXrCXX96Kdxx2HQDKFGkGZpb7EpW OmTyhghPGusO7/l9glNJkiPfr2rNIQjHZklmjuE1K1RDy4jndjREXz5eqSeEihKFhXsA LyQ/OMWU+Dr0qQaxFDPpttO2bKIZFUYKcoe8bc2bHU7zWvT8dbv3t9Daba//frSBg37T 2SgA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681549726; x=1684141726; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=8GS8ed+C9TZSDKqE7yJs3rXmG1XU+tjMZxFV1EPCP0I=; b=ZNNT0Urk+3pnlWYDyFbPhIRXG1+++6I23GhbdnJ3gJ15zcXvQ74SyN43UXt6zpCAMZ xnZ0UB5y24M8GFeeKqMyONthjXFQ1QqsXaPsNjeFVN3KrFKEkCuDyGsuKBxI+Ek41Scr ZKQ+iIGjFkkM+wUoSwEDCIE8CqqxBjvjDMU0VulvYpOM9t01fbBjvE7V2izhiYrrDtJM bu+7W75LEmdXn+ikVwDLM3Z/AU/AFeK44mA9Xv37pwrXLG79oCWCHPOeJyYP+/S52nPj 0zCgVJ4x263MvEqUsc2Plm9xAl0DTIn2meYiCcas6SMYnQOkWp2MZwqDiHSYOFBlddvO b3Dg== X-Gm-Message-State: AAQBX9c9Rny72eWFHcMs7B77cvUtnBikgkUdZuMVs1FOhr2laFmZceMs TJ2mHKlRF4cY8Dn0s08rFR4= X-Google-Smtp-Source: AKy350aou3ekqdEv1AmYmuJIzUpY9augs9/NpgSD9Hdfv4oTmMl+FDy9Ovq+2DeTaldPP79lxq+pcg== X-Received: by 2002:a7b:c7c8:0:b0:3ed:b094:3c93 with SMTP id z8-20020a7bc7c8000000b003edb0943c93mr5887766wmk.23.1681549725732; Sat, 15 Apr 2023 02:08:45 -0700 (PDT) Received: from lucifer.home ([2a00:23c5:dc8c:8701:1663:9a35:5a7b:1d76]) by smtp.googlemail.com with ESMTPSA id c8-20020a05600c0a4800b003ee5fa61f45sm9990707wmq.3.2023.04.15.02.08.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Apr 2023 02:08:45 -0700 (PDT) From: Lorenzo Stoakes To: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton Cc: Matthew Wilcox , David Hildenbrand , Jens Axboe , Pavel Begunkov , io-uring@vger.kernel.org, Lorenzo Stoakes Subject: [PATCH v2 5/7] io_uring: rsrc: use FOLL_SAME_FILE on pin_user_pages() Date: Sat, 15 Apr 2023 10:08:42 +0100 Message-Id: <362e96284273ef0781df0116b6491ce97b0fe073.1681547405.git.lstoakes@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Commit edd478269640 ("io_uring/rsrc: disallow multi-source reg buffers") prevents io_pin_pages() from pinning pages spanning multiple VMAs with permitted characteristics (anon/huge), requiring that all VMAs share the same vm_file. The newly introduced FOLL_SAME_FILE flag permits this to be expressed as a GUP flag rather than having to retrieve VMAs to perform the check. We then only need to perform a VMA lookup for the first VMA to assert the anon/hugepage requirement as we know the rest of the VMAs will possess the same characteristics. Doing this eliminates the one instance of vmas being used by pin_user_pages(). Signed-off-by: Lorenzo Stoakes Suggested-by: Matthew Wilcox (Oracle) --- io_uring/rsrc.c | 39 ++++++++++++++++----------------------- 1 file changed, 16 insertions(+), 23 deletions(-) diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index 7a43aed8e395..adc860bcbd4f 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -1141,9 +1141,8 @@ static int io_buffer_account_pin(struct io_ring_ctx *ctx, struct page **pages, struct page **io_pin_pages(unsigned long ubuf, unsigned long len, int *npages) { unsigned long start, end, nr_pages; - struct vm_area_struct **vmas = NULL; struct page **pages = NULL; - int i, pret, ret = -ENOMEM; + int pret, ret = -ENOMEM; end = (ubuf + len + PAGE_SIZE - 1) >> PAGE_SHIFT; start = ubuf >> PAGE_SHIFT; @@ -1153,31 +1152,26 @@ struct page **io_pin_pages(unsigned long ubuf, unsigned long len, int *npages) if (!pages) goto done; - vmas = kvmalloc_array(nr_pages, sizeof(struct vm_area_struct *), - GFP_KERNEL); - if (!vmas) - goto done; - ret = 0; mmap_read_lock(current->mm); - pret = pin_user_pages(ubuf, nr_pages, FOLL_WRITE | FOLL_LONGTERM, - pages, vmas); + + pret = pin_user_pages(ubuf, nr_pages, + FOLL_WRITE | FOLL_LONGTERM | FOLL_SAME_FILE, + pages, NULL); if (pret == nr_pages) { - struct file *file = vmas[0]->vm_file; + /* + * lookup the first VMA, we require that all VMAs in range + * maintain the same file characteristics, as enforced by + * FOLL_SAME_FILE + */ + struct vm_area_struct *vma = vma_lookup(current->mm, ubuf); + struct file *file; /* don't support file backed memory */ - for (i = 0; i < nr_pages; i++) { - if (vmas[i]->vm_file != file) { - ret = -EINVAL; - break; - } - if (!file) - continue; - if (!vma_is_shmem(vmas[i]) && !is_file_hugepages(file)) { - ret = -EOPNOTSUPP; - break; - } - } + file = vma->vm_file; + if (file && !vma_is_shmem(vma) && !is_file_hugepages(file)) + ret = -EOPNOTSUPP; + *npages = nr_pages; } else { ret = pret < 0 ? pret : -EFAULT; @@ -1194,7 +1188,6 @@ struct page **io_pin_pages(unsigned long ubuf, unsigned long len, int *npages) } ret = 0; done: - kvfree(vmas); if (ret < 0) { kvfree(pages); pages = ERR_PTR(ret); From patchwork Sat Apr 15 09:08:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Stoakes X-Patchwork-Id: 13212353 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 DDC01C77B71 for ; Sat, 15 Apr 2023 09:09:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230030AbjDOJJW (ORCPT ); Sat, 15 Apr 2023 05:09:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230085AbjDOJJK (ORCPT ); Sat, 15 Apr 2023 05:09:10 -0400 Received: from mail-wr1-x436.google.com (mail-wr1-x436.google.com [IPv6:2a00:1450:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4775A27F; Sat, 15 Apr 2023 02:08:51 -0700 (PDT) Received: by mail-wr1-x436.google.com with SMTP id ffacd0b85a97d-2f87c5b4635so189048f8f.1; Sat, 15 Apr 2023 02:08:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1681549730; x=1684141730; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=InhEM3EHiRkXrRv+rDOd/57bP6C2VpOkdZxgrLu5jHw=; b=nIsKl560k8l1z5w+7Vj9euFCWZH9iEYRsj90660ZNXMvB3jyD9wfY0wtUFEPNkAAWr DM6hd7rU2kNk23Pc+1FSpvcnPwXlB0bt0zS1jjavZpkr6ffnt04azfiMIHD5DTwYuv4S C5XoRspwhOTPB2qwBSsm0HzAiNcEpf2KkiLZFtmKge8HFu/5PEZyeLddBuKAPjEXxn4T Khp3w3pCQoHTkm4L5NakurRQD9sY0L+KWM7tvBwGcJlRyNXUdQSC2YMJ0hNJy1q73DSk H1a9uPS+UUpLKnnhcDdM7CpraDeMo3FTa0RLWUsBx7q30BVtBuAXvfSO2aVDdxKRnJIn wppw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1681549730; x=1684141730; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=InhEM3EHiRkXrRv+rDOd/57bP6C2VpOkdZxgrLu5jHw=; b=hFRIK7FWy23kfNieFrGKUFi6s5YObri4mDrOo/NPOwhuF69Li3La6jwLgL6gyWDGkw yFfOqvmrf5RO2F3y7cqS34+lakl2bgxT2SKoy0qOhLQQGSxS6J8CvlwWQfBMW6r2UItf OfYb53CrIrQxd/lDqR8x2puWd2i0z9je2kiCy03x8YjSvuevl19i/XiCLf0+/PP92wSN APrvWn477rhhkfIu6cl7188M+5qEh08CINWxtIYI1pHDK5Yye8hXGOUdopX6wHB6YPGE ym8DdyahxGAR4EAMf/WybCQGjAfcnMrO0YOGVvDfb8hZLo+bD47nd754kVrgecY3ta8Y UGxQ== X-Gm-Message-State: AAQBX9fM9PDbX5V3dsCZ0qcALnpy4RKPCZLg2XGAa/DByBiJesXcnztW T0zNwfIMaqYv741T4Jpne84= X-Google-Smtp-Source: AKy350Z5pLswAXLOFSTYMOtF/X2jVhBWwPLFnyPBpYeO/k93TYYcoLOvVvEGvTS833bwvHj8k46jZA== X-Received: by 2002:adf:f183:0:b0:2e4:d8d7:839a with SMTP id h3-20020adff183000000b002e4d8d7839amr1028458wro.43.1681549729931; Sat, 15 Apr 2023 02:08:49 -0700 (PDT) Received: from lucifer.home ([2a00:23c5:dc8c:8701:1663:9a35:5a7b:1d76]) by smtp.googlemail.com with ESMTPSA id j4-20020a5d5644000000b002f02df4c7a3sm5338874wrw.30.2023.04.15.02.08.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Apr 2023 02:08:49 -0700 (PDT) From: Lorenzo Stoakes To: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andrew Morton Cc: Matthew Wilcox , David Hildenbrand , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Dennis Dalessandro , Jason Gunthorpe , Leon Romanovsky , Christian Benvenuti , Nelson Escobar , Bernard Metzler , Mauro Carvalho Chehab , "Michael S . Tsirkin" , Jason Wang , Jens Axboe , Pavel Begunkov , Bjorn Topel , Magnus Karlsson , Maciej Fijalkowski , Jonathan Lemon , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , linuxppc-dev@lists.ozlabs.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, netdev@vger.kernel.org, io-uring@vger.kernel.org, bpf@vger.kernel.org, Lorenzo Stoakes Subject: [PATCH v2 6/7] mm/gup: remove vmas parameter from pin_user_pages() Date: Sat, 15 Apr 2023 10:08:45 +0100 Message-Id: <925661e55664dd65a6aaa9f60e96bd0d71ed8197.1681547405.git.lstoakes@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org After the introduction of FOLL_SAME_FILE we no longer require vmas for any invocation of pin_user_pages(), so eliminate this parameter from the function and all callers. This clears the way to removing the vmas parameter from GUP altogether. Signed-off-by: Lorenzo Stoakes --- arch/powerpc/mm/book3s64/iommu_api.c | 2 +- drivers/infiniband/hw/qib/qib_user_pages.c | 2 +- drivers/infiniband/hw/usnic/usnic_uiom.c | 2 +- drivers/infiniband/sw/siw/siw_mem.c | 2 +- drivers/media/v4l2-core/videobuf-dma-sg.c | 2 +- drivers/vdpa/vdpa_user/vduse_dev.c | 2 +- drivers/vhost/vdpa.c | 2 +- include/linux/mm.h | 3 +-- io_uring/rsrc.c | 2 +- mm/gup.c | 9 +++------ mm/gup_test.c | 9 ++++----- net/xdp/xdp_umem.c | 2 +- 12 files changed, 17 insertions(+), 22 deletions(-) diff --git a/arch/powerpc/mm/book3s64/iommu_api.c b/arch/powerpc/mm/book3s64/iommu_api.c index 81d7185e2ae8..d19fb1f3007d 100644 --- a/arch/powerpc/mm/book3s64/iommu_api.c +++ b/arch/powerpc/mm/book3s64/iommu_api.c @@ -105,7 +105,7 @@ static long mm_iommu_do_alloc(struct mm_struct *mm, unsigned long ua, ret = pin_user_pages(ua + (entry << PAGE_SHIFT), n, FOLL_WRITE | FOLL_LONGTERM, - mem->hpages + entry, NULL); + mem->hpages + entry); if (ret == n) { pinned += n; continue; diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c index f693bc753b6b..1bb7507325bc 100644 --- a/drivers/infiniband/hw/qib/qib_user_pages.c +++ b/drivers/infiniband/hw/qib/qib_user_pages.c @@ -111,7 +111,7 @@ int qib_get_user_pages(unsigned long start_page, size_t num_pages, ret = pin_user_pages(start_page + got * PAGE_SIZE, num_pages - got, FOLL_LONGTERM | FOLL_WRITE, - p + got, NULL); + p + got); if (ret < 0) { mmap_read_unlock(current->mm); goto bail_release; diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c index 2a5cac2658ec..84e0f41e7dfa 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.c +++ b/drivers/infiniband/hw/usnic/usnic_uiom.c @@ -140,7 +140,7 @@ static int usnic_uiom_get_pages(unsigned long addr, size_t size, int writable, ret = pin_user_pages(cur_base, min_t(unsigned long, npages, PAGE_SIZE / sizeof(struct page *)), - gup_flags, page_list, NULL); + gup_flags, page_list); if (ret < 0) goto out; diff --git a/drivers/infiniband/sw/siw/siw_mem.c b/drivers/infiniband/sw/siw/siw_mem.c index f51ab2ccf151..e6e25f15567d 100644 --- a/drivers/infiniband/sw/siw/siw_mem.c +++ b/drivers/infiniband/sw/siw/siw_mem.c @@ -422,7 +422,7 @@ struct siw_umem *siw_umem_get(u64 start, u64 len, bool writable) umem->page_chunk[i].plist = plist; while (nents) { rv = pin_user_pages(first_page_va, nents, foll_flags, - plist, NULL); + plist); if (rv < 0) goto out_sem_up; diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c index 53001532e8e3..405b89ea1054 100644 --- a/drivers/media/v4l2-core/videobuf-dma-sg.c +++ b/drivers/media/v4l2-core/videobuf-dma-sg.c @@ -180,7 +180,7 @@ static int videobuf_dma_init_user_locked(struct videobuf_dmabuf *dma, data, size, dma->nr_pages); err = pin_user_pages(data & PAGE_MASK, dma->nr_pages, gup_flags, - dma->pages, NULL); + dma->pages); if (err != dma->nr_pages) { dma->nr_pages = (err >= 0) ? err : 0; diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c index 0c3b48616a9f..1f80254604f0 100644 --- a/drivers/vdpa/vdpa_user/vduse_dev.c +++ b/drivers/vdpa/vdpa_user/vduse_dev.c @@ -995,7 +995,7 @@ static int vduse_dev_reg_umem(struct vduse_dev *dev, goto out; pinned = pin_user_pages(uaddr, npages, FOLL_LONGTERM | FOLL_WRITE, - page_list, NULL); + page_list); if (pinned != npages) { ret = pinned < 0 ? pinned : -ENOMEM; goto out; diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 7be9d9d8f01c..4317128c1c62 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -952,7 +952,7 @@ static int vhost_vdpa_pa_map(struct vhost_vdpa *v, while (npages) { sz2pin = min_t(unsigned long, npages, list_size); pinned = pin_user_pages(cur_base, sz2pin, - gup_flags, page_list, NULL); + gup_flags, page_list); if (sz2pin != pinned) { if (pinned < 0) { ret = pinned; diff --git a/include/linux/mm.h b/include/linux/mm.h index 1bfe73a2b6d3..363e3d0d46f4 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2382,8 +2382,7 @@ long pin_user_pages_remote(struct mm_struct *mm, long get_user_pages(unsigned long start, unsigned long nr_pages, unsigned int gup_flags, struct page **pages); long pin_user_pages(unsigned long start, unsigned long nr_pages, - unsigned int gup_flags, struct page **pages, - struct vm_area_struct **vmas); + unsigned int gup_flags, struct page **pages); long get_user_pages_unlocked(unsigned long start, unsigned long nr_pages, struct page **pages, unsigned int gup_flags); long pin_user_pages_unlocked(unsigned long start, unsigned long nr_pages, diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index adc860bcbd4f..92d0d47e322c 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -1157,7 +1157,7 @@ struct page **io_pin_pages(unsigned long ubuf, unsigned long len, int *npages) pret = pin_user_pages(ubuf, nr_pages, FOLL_WRITE | FOLL_LONGTERM | FOLL_SAME_FILE, - pages, NULL); + pages); if (pret == nr_pages) { /* * lookup the first VMA, we require that all VMAs in range diff --git a/mm/gup.c b/mm/gup.c index 3954ce499a4a..714970ef3b30 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -3132,8 +3132,6 @@ EXPORT_SYMBOL(pin_user_pages_remote); * @gup_flags: flags modifying lookup behaviour * @pages: array that receives pointers to the pages pinned. * Should be at least nr_pages long. - * @vmas: array of pointers to vmas corresponding to each page. - * Or NULL if the caller does not require them. * * Nearly the same as get_user_pages(), except that FOLL_TOUCH is not set, and * FOLL_PIN is set. @@ -3142,15 +3140,14 @@ EXPORT_SYMBOL(pin_user_pages_remote); * see Documentation/core-api/pin_user_pages.rst for details. */ long pin_user_pages(unsigned long start, unsigned long nr_pages, - unsigned int gup_flags, struct page **pages, - struct vm_area_struct **vmas) + unsigned int gup_flags, struct page **pages) { int locked = 1; - if (!is_valid_gup_args(pages, vmas, NULL, &gup_flags, FOLL_PIN)) + if (!is_valid_gup_args(pages, NULL, NULL, &gup_flags, FOLL_PIN)) return 0; return __gup_longterm_locked(current->mm, start, nr_pages, - pages, vmas, &locked, gup_flags); + pages, NULL, &locked, gup_flags); } EXPORT_SYMBOL(pin_user_pages); diff --git a/mm/gup_test.c b/mm/gup_test.c index 9ba8ea23f84e..1668ce0e0783 100644 --- a/mm/gup_test.c +++ b/mm/gup_test.c @@ -146,18 +146,17 @@ static int __gup_test_ioctl(unsigned int cmd, pages + i); break; case PIN_BASIC_TEST: - nr = pin_user_pages(addr, nr, gup->gup_flags, pages + i, - NULL); + nr = pin_user_pages(addr, nr, gup->gup_flags, pages + i); break; case PIN_LONGTERM_BENCHMARK: nr = pin_user_pages(addr, nr, gup->gup_flags | FOLL_LONGTERM, - pages + i, NULL); + pages + i); break; case DUMP_USER_PAGES_TEST: if (gup->test_flags & GUP_TEST_FLAG_DUMP_PAGES_USE_PIN) nr = pin_user_pages(addr, nr, gup->gup_flags, - pages + i, NULL); + pages + i); else nr = get_user_pages(addr, nr, gup->gup_flags, pages + i); @@ -270,7 +269,7 @@ static inline int pin_longterm_test_start(unsigned long arg) gup_flags, pages); else cur_pages = pin_user_pages(addr, remaining_pages, - gup_flags, pages, NULL); + gup_flags, pages); if (cur_pages < 0) { pin_longterm_test_stop(); ret = cur_pages; diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c index 02207e852d79..06cead2b8e34 100644 --- a/net/xdp/xdp_umem.c +++ b/net/xdp/xdp_umem.c @@ -103,7 +103,7 @@ static int xdp_umem_pin_pages(struct xdp_umem *umem, unsigned long address) mmap_read_lock(current->mm); npgs = pin_user_pages(address, umem->npgs, - gup_flags | FOLL_LONGTERM, &umem->pgs[0], NULL); + gup_flags | FOLL_LONGTERM, &umem->pgs[0]); mmap_read_unlock(current->mm); if (npgs != umem->npgs) {