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[216.228.112.21]) by smtp.gmail.com with ESMTPSA id j20sm100062363pfr.113.2019.08.11.18.50.55 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 11 Aug 2019 18:50:55 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Cc: Christoph Hellwig , Dan Williams , Dave Chinner , Ira Weiny , Jan Kara , Jason Gunthorpe , =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , LKML , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-rdma@vger.kernel.org, John Hubbard Subject: [RFC PATCH 0/2] mm/gup: introduce vaddr_pin_pages_remote(), FOLL_PIN Date: Sun, 11 Aug 2019 18:50:42 -0700 Message-Id: <20190812015044.26176-1-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 X-NVConfidentiality: public 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: X-Virus-Scanned: ClamAV using ClamSMTP From: John Hubbard Hi, Dave Chinner's head didn't seem to explode...much, when he saw Ira's series, so I optimistically started taking it from there...this builds on top of Ira's patchset that he just sent out: "[RFC PATCH v2 00/19] RDMA/FS DAX truncate proposal V1,000,002 ;-)" [1] ...which in turn is based on the latest -mmotm. If Ira's series and this one are both acceptable, then a) I'll rework the 41-patch "put_user_pages(): miscellaneous call sites" series, and b) note that this will take rather longer and will be quite a bit more intrusive for each call site (but it's worth it), due to the need to plumb the owning struct file* all the way down to the gup() call. whew. [1] https://lore.kernel.org/r/20190809225833.6657-1-ira.weiny@intel.com [2] https://lore.kernel.org/r/20190807013340.9706-1-jhubbard@nvidia.com John Hubbard (2): mm/gup: introduce FOLL_PIN flag for get_user_pages() mm/gup: introduce vaddr_pin_pages_remote() drivers/infiniband/core/umem_odp.c | 15 ++++---- include/linux/mm.h | 8 +++++ mm/gup.c | 55 +++++++++++++++++++++++++++++- 3 files changed, 71 insertions(+), 7 deletions(-)