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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67861C77B71 for ; Sat, 15 Apr 2023 09:08:54 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 08D506B007D; Sat, 15 Apr 2023 05:08:54 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 03E3E6B007E; Sat, 15 Apr 2023 05:08:53 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DFC086B0080; Sat, 15 Apr 2023 05:08:53 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id CD66F6B007D for ; Sat, 15 Apr 2023 05:08:53 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 959AB1401CD for ; Sat, 15 Apr 2023 09:08:53 +0000 (UTC) X-FDA: 80683050546.09.9AE5EE6 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) by imf06.hostedemail.com (Postfix) with ESMTP id B336318000F for ; Sat, 15 Apr 2023 09:08:51 +0000 (UTC) Authentication-Results: imf06.hostedemail.com; dkim=pass header.d=gmail.com header.s=20221208 header.b=nIsKl560; spf=pass (imf06.hostedemail.com: domain of lstoakes@gmail.com designates 209.85.128.46 as permitted sender) smtp.mailfrom=lstoakes@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1681549731; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=InhEM3EHiRkXrRv+rDOd/57bP6C2VpOkdZxgrLu5jHw=; b=IHi0ucuWBAQ9ghrJgYDfBmaQHn/tBI7ocrXpTA391dXpiV8ZDE/4jMiH8XVc5ueCI+HrJh vcAAncROtJMJtZLieSHGdro7EtLZJtHIlb++w1uRKHJ3ySNogww35uTxSlkcN7aHk0vUrn E4f5QtNQqPI+5TPdvbd47hMkky/nEGA= ARC-Authentication-Results: i=1; imf06.hostedemail.com; dkim=pass header.d=gmail.com header.s=20221208 header.b=nIsKl560; spf=pass (imf06.hostedemail.com: domain of lstoakes@gmail.com designates 209.85.128.46 as permitted sender) smtp.mailfrom=lstoakes@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1681549731; a=rsa-sha256; cv=none; b=7UVleorohMMtvwTYwotUXeYwoSHKxfGal1/tQsWHjuf4IOwjdTh7afR5nRQTXcBTW05U/7 gpt9TphE5h2tCfL1tXEhp/+q7C09bfachZaEiI9ChEyL5fMg3xzQdwOkFOWf48yhV04HJa 6tDSzJAfIe62MyflU1VneUBLHf1dpHc= Received: by mail-wm1-f46.google.com with SMTP id 5b1f17b1804b1-3f0a80b683fso3261405e9.3 for ; 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=eGHtsrNA0yFn9e607r1N7/xa0B6v67Pay0tt71XIWYAXSyQZ2pevUdaUQuhWct7fkD 913kCL8iq0p04dsGhmPIAtmE0G0kqTV7At00fDA+Duy8EUVXd8pcyV186VNrWMccYkbg w1M+ZeyuaDwI/gZNqNe9VXFRpsgEeAQs++xkZXOAq8wfWvp8OqvSXt0Aoc6rG2IjDNmW 323bEy78AmpPYUeYomRUokaAfUn4MIKQ37+wpI6PiCrca4ANrvqxq4fG1MeHMzvsVNqW kUgT4pWM42bqo0LXOxfuuQsRlEtU3j2B2EwVz5FvDrDvmQGj/xq59P2KvnDOMCUeRYQF G7rg== X-Gm-Message-State: AAQBX9dkxmc3e5Y0KJQCfOxOWmogXjI9INif0VipKBtSCouMabNeFiLN l7GvOIvoyvIryxp7IiOwcNhT2bRwNdwraQ== 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 Content-Transfer-Encoding: 8bit X-Stat-Signature: 5bzuh4fdfjx8edykqadgt63twqxsjck6 X-Rspam-User: X-Rspamd-Queue-Id: B336318000F X-Rspamd-Server: rspam06 X-HE-Tag: 1681549731-417224 X-HE-Meta: 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 s2x+Lk5T 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 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: 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) { -- 2.40.0