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Tue, 20 Aug 2019 21:07:33 -0700 From: John Hubbard To: Andrew Morton CC: Christoph Hellwig , Dan Williams , Dave Chinner , Ira Weiny , Jan Kara , Jason Gunthorpe , =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , Vlastimil Babka , LKML , , , , John Hubbard Subject: [PATCH v2 0/3] mm/gup: introduce vaddr_pin_pages_remote(), FOLL_PIN Date: Tue, 20 Aug 2019 21:07:24 -0700 Message-ID: <20190821040727.19650-1-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.1 MIME-Version: 1.0 X-NVConfidentiality: public DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1566360454; bh=uyVhqp7Iikhfj8344qx1VFzWIkbM3pJSNZmFd7x5l5o=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: MIME-Version:X-NVConfidentiality:Content-Transfer-Encoding: Content-Type; b=XA6UfrA6lFoTPSUjqbFZI3a7dNJUvP4CdrK9ripJXyx9Yo5DzDH2Ay5MuUMu/41bO UqbpMDmfE8WaZzqd0s7Rmu0ypulWp9E5jo4whaTYp4kzsjysPkDaHu0dv4wCZ/5MJW U+eZCd4rdUDs5YiwGb7sXgpjJaMxf0qLGrM6Ozaeqi+IyQpB+McIltnVdPR0/C7YtD GJh1pCKjVIyNwAnCzbFs8/Tt8eeP8K2SkobKCy4zpcxotj/8Gycw3s+Kkl4bqHwvu/ n8G6roBAp/PtxA5N5rNvRJRl7nhZhRRCDjFON1+QnBJz0Jrf9EhKrx0nbzM81maDvz w3/7lG5eZmwAg== 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: Hi Ira, This is for your tree. I'm dropping the RFC because this aspect is starting to firm up pretty well. I've moved FOLL_PIN inside the vaddr_pin_*() routines, and moved FOLL_LONGTERM outside, based on our recent discussions. This is documented pretty well within the patches. Note that there are a lot of references in comments and commit logs, to vaddr_pin_pages(). We'll want to catch all of those if we rename that. I am pushing pretty hard to rename it to vaddr_pin_user_pages(). v1 of this may be found here: https://lore.kernel.org/r/20190812015044.26176-1-jhubbard@nvidia.com John Hubbard (3): For Ira: tiny formatting tweak to kerneldoc mm/gup: introduce FOLL_PIN flag for get_user_pages() mm/gup: introduce vaddr_pin_pages_remote(), and invoke it drivers/infiniband/core/umem.c | 1 + include/linux/mm.h | 61 ++++++++++++++++++++++++++++++---- mm/gup.c | 40 ++++++++++++++++++++-- mm/process_vm_access.c | 23 +++++++------ 4 files changed, 106 insertions(+), 19 deletions(-)