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[76.242.90.12]) by smtp.gmail.com with ESMTPSA id h3-20020a05622a170300b002e008a93f8fsm469815qtk.91.2022.02.27.01.34.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Feb 2022 01:34:51 -0800 (PST) From: jhubbard.send.patches@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Jens Axboe , Jan Kara , Christoph Hellwig , Dave Chinner , "Darrick J . Wong" , Theodore Ts'o , Alexander Viro , Miklos Szeredi , Andrew Morton , Chaitanya Kulkarni Cc: linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, LKML , John Hubbard Subject: [PATCH 5/6] NFS: direct-io: convert to FOLL_PIN pages Date: Sun, 27 Feb 2022 01:34:33 -0800 Message-Id: <20220227093434.2889464-6-jhubbard@nvidia.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220227093434.2889464-1-jhubbard@nvidia.com> References: <20220227093434.2889464-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: DEC7B1C0004 X-Rspam-User: Authentication-Results: imf18.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=QElJKo+j; spf=pass (imf18.hostedemail.com: domain of jhubbard.send.patches@gmail.com designates 209.85.160.182 as permitted sender) smtp.mailfrom=jhubbard.send.patches@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-Stat-Signature: 4nqyhqam6e5rgoqqq9gdy6391yh1634z X-HE-Tag: 1645954492-74468 Content-Transfer-Encoding: quoted-printable 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: From: John Hubbard Convert nfs-direct to use pin_user_pages_fast(), and unpin_user_pages(), in place of get_user_pages_fast() and put_page(). Signed-off-by: John Hubbard --- fs/nfs/direct.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index eabfdab543c8..42111a75c0f7 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -177,13 +177,6 @@ ssize_t nfs_direct_IO(struct kiocb *iocb, struct iov= _iter *iter) return nfs_file_direct_write(iocb, iter); } =20 -static void nfs_direct_release_pages(struct page **pages, unsigned int n= pages) -{ - unsigned int i; - for (i =3D 0; i < npages; i++) - put_page(pages[i]); -} - void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo, struct nfs_direct_req *dreq) { @@ -367,7 +360,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct = nfs_direct_req *dreq, size_t pgbase; unsigned npages, i; =20 - result =3D iov_iter_get_pages_alloc(iter, &pagevec,=20 + result =3D iov_iter_pin_pages_alloc(iter, &pagevec, rsize, &pgbase); if (result < 0) break; @@ -398,7 +391,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct = nfs_direct_req *dreq, pos +=3D req_len; dreq->bytes_left -=3D req_len; } - nfs_direct_release_pages(pagevec, npages); + unpin_user_pages(pagevec, npages); kvfree(pagevec); if (result < 0) break; @@ -811,7 +804,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct= nfs_direct_req *dreq, size_t pgbase; unsigned npages, i; =20 - result =3D iov_iter_get_pages_alloc(iter, &pagevec,=20 + result =3D iov_iter_pin_pages_alloc(iter, &pagevec, wsize, &pgbase); if (result < 0) break; @@ -850,7 +843,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct= nfs_direct_req *dreq, pos +=3D req_len; dreq->bytes_left -=3D req_len; } - nfs_direct_release_pages(pagevec, npages); + unpin_user_pages(pagevec, npages); kvfree(pagevec); if (result < 0) break; --=20 2.35.1