Message ID | 20190213230455.5605-6-ira.weiny@intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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[134.134.136.100]) by mx.google.com with ESMTPS id f9si574863pgh.435.2019.02.13.15.05.31 for <linux-mm@kvack.org> (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 13 Feb 2019 15:05:31 -0800 (PST) Received-SPF: pass (google.com: domain of ira.weiny@intel.com designates 134.134.136.100 as permitted sender) client-ip=134.134.136.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of ira.weiny@intel.com designates 134.134.136.100 as permitted sender) smtp.mailfrom=ira.weiny@intel.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Feb 2019 15:05:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,366,1544515200"; d="scan'208";a="138415628" Received: from iweiny-desk2.sc.intel.com ([10.3.52.157]) by orsmga001.jf.intel.com with ESMTP; 13 Feb 2019 15:05:27 -0800 From: ira.weiny@intel.com To: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, kvm@vger.kernel.org, linux-fpga@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, linux-scsi@vger.kernel.org, devel@driverdev.osuosl.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-fbdev@vger.kernel.org, xen-devel@lists.xenproject.org, devel@lists.orangefs.org, linux-mm@kvack.org, ceph-devel@vger.kernel.org, rds-devel@oss.oracle.com Cc: Ira Weiny <ira.weiny@intel.com>, John Hubbard <jhubbard@nvidia.com>, David Hildenbrand <david@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, Rich Felker <dalias@libc.org>, "David S. Miller" <davem@davemloft.net>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Joerg Roedel <joro@8bytes.org>, Wu Hao <hao.wu@intel.com>, Alan Tull <atull@kernel.org>, Moritz Fischer <mdf@kernel.org>, David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>, Jason Gunthorpe <jgg@ziepe.ca>, Dennis Dalessandro <dennis.dalessandro@intel.com>, Christian Benvenuti <benve@cisco.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Matt Porter <mporter@kernel.crashing.org>, Alexandre Bounine <alex.bou9@gmail.com>, =?utf-8?q?Kai_M=C3=A4kisara?= <Kai.Makisara@kolumbus.fi>, "James E.J. Bottomley" <jejb@linux.ibm.com>, "Martin K. Petersen" <martin.petersen@oracle.com>, Rob Springer <rspringer@google.com>, Todd Poynor <toddpoynor@google.com>, Ben Chan <benchan@chromium.org>, Jens Wiklander <jens.wiklander@linaro.org>, Alex Williamson <alex.williamson@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>, Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>, Stefano Stabellini <sstabellini@kernel.org>, Martin Brandenburg <martin@omnibond.com>, Peter Zijlstra <peterz@infradead.org>, Alexander Viro <viro@zeniv.linux.org.uk>, Andrew Morton <akpm@linux-foundation.org>, Michal Hocko <mhocko@suse.com>, "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Subject: [PATCH V2 5/7] IB/hfi1: Use the new FOLL_LONGTERM flag to get_user_pages_fast() Date: Wed, 13 Feb 2019 15:04:53 -0800 Message-Id: <20190213230455.5605-6-ira.weiny@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190213230455.5605-1-ira.weiny@intel.com> References: <20190211201643.7599-1-ira.weiny@intel.com> <20190213230455.5605-1-ira.weiny@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: <linux-mm.kvack.org> X-Virus-Scanned: ClamAV using ClamSMTP |
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Add FOLL_LONGTERM to GUP fast and use it
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expand
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diff --git a/drivers/infiniband/hw/hfi1/user_pages.c b/drivers/infiniband/hw/hfi1/user_pages.c index 78ccacaf97d0..6a7f9cd5a94e 100644 --- a/drivers/infiniband/hw/hfi1/user_pages.c +++ b/drivers/infiniband/hw/hfi1/user_pages.c @@ -104,9 +104,11 @@ int hfi1_acquire_user_pages(struct mm_struct *mm, unsigned long vaddr, size_t np bool writable, struct page **pages) { int ret; + unsigned int gup_flags = writable ? FOLL_WRITE : 0; - ret = get_user_pages_fast(vaddr, npages, writable ? FOLL_WRITE : 0, - pages); + gup_flags |= FOLL_LONGTERM; + + ret = get_user_pages_fast(vaddr, npages, gup_flags, pages); if (ret < 0) return ret;